CN114430229A

CN114430229A - Power supply conversion system

Info

Publication number: CN114430229A
Application number: CN202011183650.6A
Authority: CN
Inventors: 潘怡安
Original assignee: Guangzhou Guiguan Technology Co ltd
Current assignee: Guangzhou Guiguan Technology Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2022-05-03

Abstract

The invention relates to a power conversion system which is connected with a power supply and computer equipment. The power conversion system comprises a first port, an input circuit, a rectifying circuit, an output circuit, a control circuit and a second port. The first port is connected with the power supply to receive a standby voltage input signal, the input circuit is connected with the first port and the rectifying circuit, the output circuit is connected with the rectifying circuit and the second port, the control circuit is connected with the first port and the input circuit, and the second port outputs a standby voltage conversion signal to the computer equipment. In use, the standby voltage input signal of the power supply of the power conversion system is converted into the standby voltage conversion signal required by the computer equipment, so that a user does not need to replace the power supply. Thereby improving the use convenience and reducing the use cost.

Description

Power supply conversion system

Technical Field

The present invention relates to a power conversion system, and more particularly, to a power conversion system.

Background

With the rapid development of computer devices, people can conveniently process related matters, such as processing work, academic industry, academic research and the like, through the computer devices. Many electronic components are disposed in a computer device, such as a motherboard, a processor, a memory, a hard disk, a network card, a display adapter, and so on. In order to supply power to these electronic components to operate the computer device, a power supply needs to be installed.

Current computer devices use a power supply of AX12V that provides multiple sets of voltages, such as +3.3V, +5Vsb, +12V, and-12V. However, as electronic components in computer equipment have advanced, power supplies providing multiple sets of voltages have fallen short of the design trend, further impacting voltage conversion efficiency.

In addition, the Intel corporation issued new ATX12VO design guidelines in 2019 as a rule for power supply to output a single voltage, thereby unifying the output voltage and improving the inconvenience of the conventional multiple voltage sets. Moreover, in order to comply with the design guidelines of ATX12VO, many electronic components are also modified in design in accordance with ATX12VO, so as to improve the voltage conversion efficiency. For ATX12VO, the power supply is required to output only +12V, and the output +12V is divided into +12V and +12Vsb, where +12Vsb is used as the standby voltage for supplying to the computer device, and as long as the power supply is connected to the mains and the switch is turned on, the standby voltage of +12Vsb is always supplied to supply the start voltage required by the computer device when the computer device is started.

Most of the power supplies sold in the market or the power supplies in the computer equipment in use are still old power supplies providing multiple sets of voltages, wherein the provided standby voltage is only +5Vsb, and the power supplies are not used. The ATX12VO compliant power supply is not yet available in the market. Therefore, the user is bothered in use. Therefore, how to improve the convenience of the user and reduce the trouble in use in the case of adapting to the old power supply is a necessity of providing a better solution.

Disclosure of Invention

In view of the above-mentioned problems of the prior art, it is an object of the present invention to provide a power conversion system connected between a legacy power supply and a computer device. The power conversion system converts the old +5Vsb voltage to the required +12Vsb voltage, so that the user can continue to use the old power supply without replacing the old power supply, and the cost of the user can be reduced. Thereby improving the use convenience and reducing the use cost.

At least one technical means adopted to achieve the above object is a power conversion system for connecting a power supply and a computer device, the power conversion system comprising: a first port connected to the power supply for receiving a standby voltage input signal; an input circuit connected to the first port; a rectifying circuit connected to the input circuit; the control circuit is respectively connected among the first port, the input circuit, the rectifying circuit and the output circuit; an output circuit connected to the rectifying circuit for outputting the standby voltage conversion signal; the second port is connected with the output circuit to transmit the standby voltage conversion signal to the computer equipment.

In one embodiment, the control circuit further comprises a voltage sampling circuit connected between the rectifying circuit and the output circuit and connected to the control circuit.

In one embodiment, the voltage sampling circuit further comprises an auxiliary circuit connected to the first port and connected between the rectifying circuit, the output circuit, the control circuit and the voltage sampling circuit.

In one embodiment, the input circuit includes: the first end of the first capacitor is connected with the first port, and the second end of the first capacitor is connected with the first port and grounded; the first end of the second capacitor is connected with the first end of the first capacitor and the first port, and the second end of the second capacitor is connected with the second end of the first capacitor, the first port and the ground; the first end of the first inductor is connected with the first port, the first end of the first capacitor and the first end of the second capacitor, and the second end of the first inductor is connected with the rectifying circuit and the control circuit.

In one embodiment, the rectifier circuit includes: the first end of the first diode is connected with the second end of the first inductor and the control circuit, and the second end of the first diode is connected with the output circuit, the control circuit and the voltage sampling circuit; the first end of the first resistor is connected with the second end of the first inductor and the control circuit; and the third capacitor comprises a first end and a second end, the first end of the third capacitor is connected with the second end of the first resistor, and the second end of the third capacitor is connected with the second end of the first diode, the control circuit, the output circuit, the voltage sampling circuit and the auxiliary circuit.

In one embodiment, the output circuit includes: the first end of the fourth capacitor is connected with the second end of the first diode, the second end of the third capacitor, the auxiliary circuit, the control circuit and the voltage sampling circuit; the first end of the second inductor is connected with the first end of the fourth capacitor, the second end of the first diode, the second end of the third capacitor, the auxiliary circuit, the control circuit and the voltage sampling circuit; and the fifth capacitor comprises a first end and a second end, the first end of the fifth capacitor is connected with the second end of the second inductor and the second port, and the second end of the fifth capacitor is connected with the second port and the ground.

In one embodiment, the control circuit includes a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, and a controller; the controller comprises a plurality of connecting ends, the first connecting end and the second connecting end of the controller are connected with the first end of the second resistor, the second end of the first inductor, the first end of the first diode and the first end of the first resistor, the first end of the sixth capacitor is connected with the second end of the second resistor, and the second end of the sixth capacitor is grounded; the third connecting end of the controller is connected with the first end of the seventh capacitor, and the second end of the seventh capacitor is grounded; the fourth connecting end of the controller is connected with the first end of the third resistor, and the second end of the third resistor is connected with the first port; the fifth connecting end of the controller is connected with the voltage sampling circuit; a sixth connection end of the controller is connected with the first end of the fourth resistor and the first end of the eighth capacitor, the first end of the ninth capacitor is connected with the second end of the fourth resistor, and the second end of the ninth capacitor is connected with the second end of the eighth capacitor and the ground; the seventh connection end of the controller is connected to the first end of the fifth resistor, the first end of the tenth capacitor is connected to the second end of the fifth resistor, the second end of the tenth capacitor is connected to the first end of the sixth resistor and the eighth connection end of the controller, and the second end of the sixth resistor is connected to the first end of the second inductor, the first end of the fourth capacitor, the second end of the first diode, the second end of the third capacitor, the auxiliary circuit and the voltage sampling circuit.

In one embodiment, the voltage sampling circuit includes: a seventh resistor, including a first end and a second end, wherein the first end of the seventh resistor is connected to the first end of the fourth capacitor, the second end of the first diode, the second end of the third capacitor, the auxiliary circuit, the second end of the sixth resistor, and the first end of the second inductor; the eighth resistor comprises a first end and a second end, the first end of the eighth resistor is connected with the second end of the seventh resistor and the fifth connecting end of the controller, and the second end of the eighth resistor is grounded; and the auxiliary circuit comprises a second diode, the second diode comprises a first end and a second end, the first end of the second diode is connected with the first port, and the second end of the second diode is connected with the first end of the fourth capacitor, the second end of the first diode, the second end of the third capacitor, the second end of the sixth resistor, the first end of the seventh resistor and the first end of the second inductor.

In one embodiment, the device further comprises a housing and a hard circuit board; the first port, the input circuit, the rectifying circuit, the output circuit, the second port, the control circuit, the voltage sampling circuit and the auxiliary circuit are arranged on the hard circuit board, the outer cover covers the hard circuit board, and the first port and the second port expose the outer cover.

In one embodiment, the apparatus further comprises a housing and a flexible printed circuit board, wherein the housing covers the flexible printed circuit board, and the input circuit, the rectifying circuit, the output circuit, the control circuit, the voltage sampling circuit and the auxiliary circuit are arranged on the flexible printed circuit board; the first port is arranged on one side of the outer cover and is electrically connected with the input circuit, the control circuit and the auxiliary circuit on the flexible circuit board; the second port is arranged on the opposite side of the outer cover and is electrically connected with the output circuit.

According to the above, the power conversion system boosts the power of the standby voltage input signal (+5Vsb) provided by the power supply, and then outputs the standby voltage conversion signal (+12Vsb) to the computer device.

In use, a user only needs to install the power conversion system on an old power supply and connect the power conversion system with the computer device, so as to obtain the standby voltage conversion signal of +12Vsb for use. Moreover, the user does not need to replace the power supply, and the cost is reduced. Thereby improving the use convenience and reducing the use cost.

Drawings

Fig. 1 is a block diagram of a power conversion system according to an embodiment of the invention.

Fig. 2 is a block diagram of another architecture of the power conversion system shown in fig. 1 according to the present invention.

Fig. 3A is a schematic diagram of a first port of the power conversion system shown in fig. 2 according to the present invention.

Fig. 3B is a schematic diagram of a second port of the power conversion system shown in fig. 2 according to the present invention. Fig. 4 is a circuit schematic diagram based on the power conversion system shown in fig. 2.

Fig. 5A is a schematic diagram of a power conversion system according to an embodiment of the invention.

Fig. 5B is another schematic diagram of a power conversion system according to an embodiment of the invention.

Fig. 5C is a schematic diagram of a power conversion system according to an embodiment of the invention.

Description of the symbols

10 power conversion system

101 outer cover

102 hard circuit board

101A outer cover

102A flexible circuit board

11 first port

111 first fastening part

12 input circuit

13 rectifying circuit

14 output circuit

15 second port

151 second latching portion

16 control circuit

161 controller

17 voltage sampling circuit

18 auxiliary circuit

20 power supply

30 computer device

a 1-a 24pin

b 1-b 10pin

C1 first capacitor

C2 second capacitor

C3 third capacitor

C4 fourth capacitor

C5 fifth capacitor

C6 sixth capacitor

C7 seventh capacitance

C8 eighth capacitor

Ninth capacitor of C9

Tenth capacitance of C10

D1 first diode

D2 second diode

L1 first inductor

L2 second inductor

R1 first resistor

R2 second resistor

R3 third resistor

R4 fourth resistor

R5 fifth resistor

R6 sixth resistor

R7 seventh resistor

R8 eighth resistor

Detailed Description

Referring to fig. 1 and 2, a power conversion system 10 is disclosed according to an embodiment of the present invention. The power conversion system 10 is connected to a power supply 20 and a computer device 30. The computer device 30 may be a desktop computer or a notebook computer.

In one embodiment, the power conversion system 10 includes a first port 11, an input circuit 12, a rectifying circuit 13, an output circuit 14, a second port 15, and a control circuit 16.

The first port 11 is connected to the power supply 20 for receiving a standby voltage input signal (+5Vsb) provided by the power supply 20. The input circuit 12 is connected to the first port 11. The rectifying circuit 13 is connected to the input circuit 12 and the output circuit 14, respectively. The second port 15 is connected to the output circuit 14 and the computer device 30, respectively. The control circuit 16 is connected between the first port 11, the input circuit 12, and the rectifying circuit 13 and the output circuit 14.

Further, the power conversion system 10 further includes a voltage sampling circuit 17. The voltage sampling circuit 17 is connected between the output circuit 14 and the rectifying circuit 13 and connected to the control circuit 16.

Further, the power conversion system 10 further includes an auxiliary circuit 18. The auxiliary circuit 18 is connected to the first port 11 and between the rectifying circuit 13, the output circuit 14, the control circuit 16 and the voltage sampling circuit 17.

The first port 11 can be a24pin port or a10 pin plus 14pin port, and the first port 11 can be a male port or a female port. The pin combination mode of the first port 11 can be designed and adjusted according to actual requirements.

The second port 15 may be a10 Pin port, and the second port 15 may be a male port or a female port. The pin of the second port 15 can be designed and adjusted according to actual requirements, and the 10pin port is not limited to the above.

Please refer to fig. 2 and 3A, which are schematic diagrams of the pin of the first port 11, and are illustrated by a conventional 24 pin. The first port 11 includes pins a1 to a24 and a first latch 111. The first locking portion 111 is used to lock with a connected flat cable (not shown) or with the power supply 20 to enhance the combination effect. The connection function corresponding to each pin of the first port 11, which is a24pin port, will be described below. The pins a1, a2, a12 and a13 are +3.3V pins connected to the power supply 20. The pin pins a3, a5, a7, a15, a17, a18, a19 and a24 are pins connected to the ground of the power supply 20. The pins a4, a6, a21, a22, and a23 are +5V pins connected to the power supply 20. pin a8 is a PG (power ready pin) pin connected to the power supply 20. Pin a9 is the +5Vsb pin that connects to the power supply 20. The pins a10 and a11 are +12V pins connected to the power supply 20. Pin a14 is the-12V pin connected to the power supply 20. pin a16 is a PS-ON pin connected to the power supply 20. Pin a20 is the-5V pin connected to the power supply 20. The above exemplified connection function of the pin is a standard defined connection function of a conventional pin. The above-mentioned connection function of the pin is for illustration and not limited thereto, and other designs and adjustments may be made according to actual requirements.

In addition, for the first port 11 composed of 10 pins and 14 pins, the connection function of each pin can be designed and connected at will according to different requirements, and the received signal is converted through the power conversion system 10, so the connection function of each pin can refer to the pin indication of 24 pins, and can also be designed and connected at will according to different requirements, and further description is omitted here.

Please refer to fig. 2 and 3B, which are schematic diagrams of the pin of the second port 15, and are illustrated by a conventional 10 pin. The second port 15 includes pins b 1-b 10 and a second locking portion 151. The second locking portion 151 is used to lock with a connected flat cable (not shown) or with the connected computer device 30, so as to enhance the combining effect. The connection function corresponding to each pin of the second port 15, which is a10 pin port, will be explained below. Pin b1 is a PS-ON (power ON pin) pin for connecting the computer device 30. The pin pins b2, b3, b4 are pins connected to the ground of the computer device 30. pin b5 is a No Connection (NC) pin. Pin b6 is the PWR-OK (digital signal pin for stable power supply) pin connected to the computer device 30. Pin b7 is the +12Vsb pin that connects to the computer device 30. Pin pins b8, b9 are the +12V pins that connect to the computer device 30. Pin b10 is the +12V pin that connects to the computer device 30. The above exemplified connection function of the pin is a standard defined connection function of a conventional pin. The above-mentioned connection function of the pin is for illustration and not limited thereto, and other designs and adjustments may be made according to actual requirements.

Referring to fig. 2 and 4, a specific circuit diagram of the power conversion system 10 is shown. The input circuit 12 includes a first capacitor C1, a second capacitor C2, and a first inductor L1.

The first terminal of the first capacitor C1 is connected to the first port 11, and the second terminal of the first capacitor C1 is connected to the first port 11 and ground.

The first terminal of the second capacitor C2 is connected to the first terminal of the first capacitor C1 and the first port 11, and the second terminal of the second capacitor C2 is connected to the second terminal of the first capacitor C1, the first port 11 and ground.

The first end of the first inductor L1 is connected to the first end of the first capacitor C1, the first end of the second capacitor C2 and the first port 11, and the second end of the first inductor L1 is connected to the rectifying circuit 13.

The rectifying circuit 13 includes a first diode D1, a first resistor R1, and a third capacitor C3.

The first terminal (P) of the first diode D1 is connected to the second terminal of the first inductor L1 and the control circuit 16, and the second terminal (N) of the first diode D1 is connected to the output circuit 14, the control circuit 16 and the voltage sampling circuit 17.

The first terminal of the first resistor R1 is connected to the first terminal (P) of the first diode D1, the second terminal of the first inductor L1, and the control circuit 16.

The first terminal of the third capacitor C3 is connected to the second terminal of the first resistor R1, and the second terminal of the third capacitor C3 is connected to the second terminal (N) of the first diode D1, the output circuit 14, the voltage sampling circuit 17, and the auxiliary circuit 18.

The output circuit 14 includes a fourth capacitor C4, a fifth capacitor C5, and a second inductor L2.

The first terminal of the fourth capacitor C4 is connected to the second terminal of the third capacitor C3, the second terminal (N) of the first diode D1, the control circuit 16 and the voltage sampling circuit 17, and the second terminal of the fourth capacitor C4 is grounded.

The first terminal of the second inductor L2 is connected to the first terminal of the fourth capacitor C4, the second terminal of the third capacitor C3, the second terminal (N) of the first diode D1, the control circuit 16 and the voltage sampling circuit 17, and the second terminal of the second inductor L2 is connected to the second port 15.

A first terminal of the fifth capacitor C5 is connected to the second terminal of the second inductor L2 and the second port 15, and a second terminal of the fifth capacitor C5 is connected to the second port 15 and ground.

The control circuit 16 includes a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, and a controller 161. The controller 161 may be of a type including, but not limited to, FP6296 XR-G1.

The controller 161 includes a plurality of connection terminals, and the first connection terminal 1 and the second connection terminal 2 of the controller 161 are connected to the first terminal of the second resistor R2, the second terminal of the first inductor L1, the first terminal (P) of the first diode D1, and the first terminal of the first resistor R1. The first terminal of the sixth capacitor C6 is connected to the second terminal of the second resistor R2, and the second terminal of the sixth capacitor C6 is grounded.

The third connection terminal 3 of the controller 161 is connected to the first terminal of the seventh capacitor C7, and the second terminal of the seventh capacitor C7 is grounded.

The fourth connection terminal 4 of the controller 161 is connected to the first terminal of the third resistor R3, and the second terminal of the third resistor R3 is connected to the first port 11.

The fifth connection 5 of the controller 161 is connected to the voltage sampling circuit 17.

The sixth connection terminal 6 of the controller 161 is connected to the first terminal of the fourth resistor R4 and the first terminal of the eighth capacitor C8, and the first terminal of the ninth capacitor C9 is connected to the second terminal of the fourth resistor R4, the second terminal of the eighth capacitor C8 and the ground.

The seventh connection terminal 7 of the controller 161 is connected to the first terminal of the fifth resistor R5, the second terminal of the fifth resistor R5 is connected to the first terminal of the tenth capacitor C10, the second terminal of the tenth capacitor C10 is connected to the first terminal of the sixth resistor R6 and the eighth connection terminal 8 of the controller 161, and the second terminal of the sixth resistor R6 is connected to the second terminal (N) of the first diode D1, the second terminal of the third capacitor C3, the first terminal of the fourth capacitor C4, the first terminal of the second inductor L2, the voltage sampling circuit 17, and the auxiliary circuit 18.

The ninth connection 9 of the controller 161 is connected to ground.

The voltage sampling circuit 17 includes a seventh resistor R7 and an eighth resistor R8. A first end of the seventh resistor R7 is connected to the second end of the sixth resistor R6, the second end (N) of the first diode D1, the second end of the third capacitor C3, the first end of the fourth capacitor C4, the first end of the second inductor L2, and the auxiliary circuit 18. A second end of the seventh resistor R7 is connected to the fifth connection terminal 5 of the controller 161 and the first end of the eighth resistor R8, and a second end of the eighth resistor R8 is grounded.

The auxiliary circuit 18 includes a second diode D2. A first terminal (P) of the second diode D2 is connected to the first port 11, and a second terminal (N) of the second diode D2 is connected to the first terminal of the seventh resistor R7, the second terminal of the sixth resistor R6, the second terminal (N) of the first diode D1, the second terminal of the third capacitor C3, the first terminal of the fourth capacitor C4, and the first terminal of the second inductor L2.

In application, the controller 161 receives the standby voltage input signal (+5Vsb) provided by the power supply 20 through the first port 11 and the third resistor R3, and is activated and controlled by the switch control through the first connection terminal 1 and the second connection terminal 2 to control the operation of the power conversion system 10. The input circuit 12 receives the standby voltage input signal (+5Vsb), and is charged by the first capacitor C1 and the second capacitor C2 to reduce noise and filter, so as to stabilize the standby voltage input signal (+5 Vsb). And the first inductor L1 stores energy.

The rectifying circuit 13 rectifies the voltage of the stored energy of the first inductor L1 to output the standby voltage converting signal (+12 Vsb). The output circuit 14 receives the standby voltage converting signal (+12Vsb), is stored by the fourth capacitor C4, the fifth capacitor C5 and the second inductor L2 for filtering, so as to stabilize the circuit operation, and outputs the signal to the second port 15 for the computer device 30 to receive.

In order to ensure stable supply of the standby voltage converting signal (+12Vsb), the control circuit 16 obtains a feedback voltage according to the voltage flowing into the output circuit 14 through the voltage sampling circuit 17, and processes the feedback voltage to generate a voltage control signal, and adjusts a duty cycle of the controller 161 for switching control, so as to stabilize the output standby voltage converting signal (+12 Vsb).

In addition, in order to ensure the stability of the current, the control circuit 16 also obtains the current sampling signal through the fifth resistor R5, the tenth capacitor C10 and the sixth resistor R6, and processes the current sampling signal to generate a current control signal to limit the current output by the rectifying circuit 13, thereby ensuring the safety of the circuit.

Further, in order to ensure that the stable and sufficient standby voltage converting signal (+12Vsb) is provided, the standby voltage input signal (+12V) is received through the auxiliary circuit 18 and rectified to provide an auxiliary voltage.

Further, referring to fig. 5A, regarding a specific structural schematic of the power conversion system 10, the power conversion system 10 may form an adapter structure. The power conversion system 10 includes a housing 101 and a rigid circuit board 102. The first port 11, the input circuit 12, the rectifying circuit 13, the output circuit 14, the second port 15, the control circuit 16, the voltage sampling circuit 17, and the auxiliary circuit 18 are disposed on the hard circuit board 102. The outer cover 101 is a hard case to cover and protect the hard circuit board 102 and protect the circuits. The first port 11 and the second port 15 respectively expose the housing 101 for connecting the power supply 20 and the computer device 30.

In the configuration shown in fig. 5A, in order to make the power conversion system 10 constituting the adapter card structure easily usable as it is for high compatibility, the first port 11 may be the 24pin port exemplified above, and the first port 11 is a female port. The second port 15 can be the 10pin port exemplified above, and the second port 15 is a female port. The first port 11 of the power conversion system 10 is connected to the power supply 20 through a flat cable (not shown). The second port 15 is connected to the computer device 30 through another flat cable (not shown).

Further, please refer to fig. 5B for another specific structural schematic diagram of the power conversion system 10. The power conversion system 10 shown in fig. 5B is substantially the same as that shown in fig. 5A. However, the second port 15 in fig. 5B is a male port, so that the computer device 30 can be directly connected through the second port 15 without being connected between the power conversion system 10 and the computer device 30 through a flat cable.

Further, please refer to fig. 5C for a schematic structure of the power conversion system 10. The power conversion system 10 may be formed of a flat cable structure and includes a housing 101A and a flexible circuit board 102A. The input circuit 12, the rectifying circuit 13, the output circuit 14, the control circuit 16, the voltage sampling circuit 17 and the auxiliary circuit 18 are disposed on the flexible circuit board 102A. The first port 11 is disposed on one side of the housing 101A and electrically connected to the input circuit 12, the control circuit 16 and the auxiliary circuit 18 of the flexible circuit board 102A through a plurality of wires. The second port 15 is disposed on the opposite side of the housing 101A and electrically connected to the output circuit 14 on the flexible circuit board 102A through a plurality of wires. The outer cover 101A is a soft cover to cover and protect the flexible circuit board 102A and protect the above circuits. The first port 11 and the second port 15 respectively expose the housing 101A for connecting the power supply 20 and the computer device 30. In the structure shown in fig. 5C, the first port 11 may be a10 pin plus 14pin port as mentioned above, and the first port 11 is a male port. The second port 15 can be the 10pin port mentioned above, and the second port 15 is a male port.

In the configuration shown in fig. 5C, the power conversion system 10 is formed by the flat cable structure, and the first port 11 is a port formed by 10 pins plus 14 pins. Therefore, the connection function of each pin of the first port 11 can be directly connected to the power supply 20 without being defined in advance, and the received signal can be converted by the circuit disposed on the flexible circuit board 102A. Since the first port 11 of the power conversion system 10 shown in fig. 5C can be directly connected to the power supply 20 without considering the connection function of each pin, convenience and flexibility in use can be improved.

Claims

1. A power conversion system for connecting a power supply and a computer device, the power conversion system comprising:

a first port connected to the power supply for receiving a standby voltage input signal;

an input circuit connected to the first port;

a rectifying circuit connected to the input circuit;

the control circuit is respectively connected among the first port, the input circuit, the rectifying circuit and the output circuit;

an output circuit connected to the rectifying circuit for outputting the standby voltage conversion signal;

the second port is connected with the output circuit to transmit the standby voltage conversion signal to the computer equipment.

2. The power conversion system of claim 1, further comprising a voltage sampling circuit coupled between the rectifying circuit and the output circuit and coupled to the control circuit.

3. The power conversion system of claim 2, further comprising an auxiliary circuit connected to the first port and connected between the rectifying circuit, the output circuit, the control circuit, and the voltage sampling circuit.

4. The power conversion system of claim 3, wherein the input circuit comprises:

the first end of the first capacitor is connected with the first port, and the second end of the first capacitor is connected with the first port and grounded;

the first end of the second capacitor is connected with the first end of the first capacitor and the first port, and the second end of the second capacitor is connected with the second end of the first capacitor, the first port and the ground;

the first end of the first inductor is connected with the first port, the first end of the first capacitor and the first end of the second capacitor, and the second end of the first inductor is connected with the rectifying circuit and the control circuit.

5. The power conversion system of claim 4, wherein the rectifying circuit comprises:

the first end of the first diode is connected with the second end of the first inductor and the control circuit, and the second end of the first diode is connected with the output circuit, the control circuit and the voltage sampling circuit;

the first end of the first resistor is connected with the second end of the first inductor and the control circuit;

and the third capacitor comprises a first end and a second end, the first end of the third capacitor is connected with the second end of the first resistor, and the second end of the third capacitor is connected with the second end of the first diode, the control circuit, the output circuit, the voltage sampling circuit and the auxiliary circuit.

6. The power conversion system of claim 5, wherein the output circuit comprises:

the first end of the fourth capacitor is connected with the second end of the first diode, the second end of the third capacitor, the auxiliary circuit, the control circuit and the voltage sampling circuit;

the first end of the second inductor is connected with the first end of the fourth capacitor, the second end of the first diode, the second end of the third capacitor, the auxiliary circuit, the control circuit and the voltage sampling circuit;

and the fifth capacitor comprises a first end and a second end, the first end of the fifth capacitor is connected with the second end of the second inductor and the second port, and the second end of the fifth capacitor is connected with the second port and the ground.

7. The power conversion system of claim 6, wherein the control circuit comprises a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, and a controller;

the controller comprises a plurality of connecting ends, the first connecting end and the second connecting end of the controller are connected with the first end of the second resistor, the second end of the first inductor, the first end of the first diode and the first end of the first resistor, the first end of the sixth capacitor is connected with the second end of the second resistor, and the second end of the sixth capacitor is grounded;

the third connecting end of the controller is connected with the first end of the seventh capacitor, and the second end of the seventh capacitor is grounded;

the fourth connecting end of the controller is connected with the first end of the third resistor, and the second end of the third resistor is connected with the first port;

the fifth connecting end of the controller is connected with the voltage sampling circuit;

a sixth connection end of the controller is connected with the first end of the fourth resistor and the first end of the eighth capacitor, the first end of the ninth capacitor is connected with the second end of the fourth resistor, and the second end of the ninth capacitor is connected with the second end of the eighth capacitor and the ground;

the seventh connection end of the controller is connected to the first end of the fifth resistor, the first end of the tenth capacitor is connected to the second end of the fifth resistor, the second end of the tenth capacitor is connected to the first end of the sixth resistor and the eighth connection end of the controller, and the second end of the sixth resistor is connected to the first end of the second inductor, the first end of the fourth capacitor, the second end of the first diode, the second end of the third capacitor, the auxiliary circuit and the voltage sampling circuit.

8. The power conversion system of claim 7, wherein the voltage sampling circuit comprises:

a seventh resistor, including a first end and a second end, wherein the first end of the seventh resistor is connected to the first end of the fourth capacitor, the second end of the first diode, the second end of the third capacitor, the auxiliary circuit, the second end of the sixth resistor, and the first end of the second inductor;

the eighth resistor comprises a first end and a second end, the first end of the eighth resistor is connected with the second end of the seventh resistor and the fifth connecting end of the controller, and the second end of the eighth resistor is grounded; and

the auxiliary circuit comprises a second diode, the second diode comprises a first end and a second end, the first end of the second diode is connected with the first port, and the second end of the second diode is connected with the first end of the fourth capacitor, the second end of the first diode, the second end of the third capacitor, the second end of the sixth resistor, the first end of the seventh resistor and the first end of the second inductor.

9. The power conversion system of claim 3, further comprising a housing and a rigid circuit board; the first port, the input circuit, the rectifying circuit, the output circuit, the second port, the control circuit, the voltage sampling circuit and the auxiliary circuit are arranged on the hard circuit board, the outer cover covers the hard circuit board, and the first port and the second port expose the outer cover.

10. The power conversion system of claim 3, further comprising a cover and a flexible printed circuit board, wherein the cover covers the flexible printed circuit board, and the input circuit, the rectifying circuit, the output circuit, the control circuit, the voltage sampling circuit and the auxiliary circuit are disposed on the flexible printed circuit board; the first port is arranged on one side of the outer cover and is electrically connected with the input circuit, the control circuit and the auxiliary circuit on the flexible circuit board; the second port is arranged on the opposite side of the outer cover and is electrically connected with the output circuit.