CN209963968U - Power supply control circuit for underwater equipment - Google Patents
Power supply control circuit for underwater equipment Download PDFInfo
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- CN209963968U CN209963968U CN201921135620.0U CN201921135620U CN209963968U CN 209963968 U CN209963968 U CN 209963968U CN 201921135620 U CN201921135620 U CN 201921135620U CN 209963968 U CN209963968 U CN 209963968U
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Abstract
The utility model provides a power control circuit for underwater equipment, which comprises a power conversion circuit and a power control circuit; the power conversion circuit at least comprises a synchronous rectification step-down conversion chip, a voltage regulator chip, a plurality of capacitors and resistors; the synchronous rectification step-down conversion chip is configured to receive 24V voltage, and the 24V voltage is converted to output 5V voltage for controlling the closing of the relay; the voltage regulation chip is configured to receive 5V voltage, and the 5V voltage is converted to output 3V voltage for supplying power to the single chip microcomputer; the power supply control circuit at least comprises a relay, an MOS transistor, a singlechip, a plurality of capacitors and a resistor; the MOS transistor is configured to receive a voltage signal output by the singlechip, and a 5V voltage closed circuit is generated through the output voltage signal so as to pull in the relay, generate a 24V voltage closed circuit and output the 24V voltage closed circuit to underwater equipment. The circuit has simple structure, and can realize the control of high voltage by using small voltage only by using a corresponding integrated chip.
Description
Technical Field
The utility model relates to an underwater equipment control field, concretely relates to a power control circuit for underwater equipment.
Background
With the rapid development of science and technology and the research and development of waterproof materials, more and more electronic devices can be placed in the sea or in water for corresponding detection. Electronic devices such as ocean bottom observation devices, underwater LED lighting devices, altimeters, and depth meters have been developed to solve specific problems in life. Such electronic devices are gradually applied to water as technology develops. It is known that electronic devices require a power supply to supply power to ensure their continuous use in water, and that these devices are placed deep under water and require remote control to turn on the power supply.
For example, chinese patent publication No. CN208488270U discloses a deep sea mobile tv grab bucket, which comprises an upper cabin, a lower cabin, a propulsion mechanism, a bucket body, an underwater power supply mechanism, a hydraulic mechanism, an ultra-short baseline positioning mechanism and a system control mechanism, wherein the upper cabin is provided with the propulsion mechanism, the upper cabin is further provided with a front-view high-definition monitoring mechanism and an overhead-view high-definition monitoring mechanism, the bucket body is hinged to the lower cabin, and a height meter, the overhead-view high-definition monitoring mechanism, a halogen lamp and an LED lamp are further arranged below the lower cabin. Obviously, the device works underwater, needs an external power supply device to supply power to the device, is applied to deep sea, and needs remote control if closing of the power supply needs to be controlled in time.
For another example, chinese patent publication No. CN206288214U discloses a cabled remote-controlled underwater camera robot, which includes a structural system, an underwater control system, a task load system, a user control system, an umbilical cable and a power supply; the structure system comprises a carrier frame, a buoyancy block, a propeller and a pressure-resistant cabin with a transparent front cover; the underwater control system and the task load system are arranged in the pressure-resistant cabin; the underwater control system comprises a basic control module, a motor driving module, an attitude sensor, a depth sensor and an altimeter; the task load system comprises a camera and an illuminating lamp, and the user control system comprises a user control terminal. The power supply is provided for each device through an umbilical cable, and meanwhile, signal transmission between the camera and a user control system is achieved through power line carriers. In this patent, the underwater power supply cannot be automatically controlled.
Therefore, in order to solve the problems in the prior art, it is urgently needed to provide a power control circuit technology which has a simple circuit structure, can control high voltage by using a small voltage, and can control the power of underwater equipment to be closed remotely.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to avoid the weak point among the prior art, and provide a circuit structure is simple, can realize little voltage control high voltage, can realize the closed power control circuit of remote control underwater equipment's power simultaneously.
The purpose of the utility model is realized through the following technical scheme:
a power control circuit for underwater equipment comprises a power conversion circuit and a power control circuit;
the power conversion circuit at least comprises a synchronous rectification step-down conversion chip, a voltage regulator chip, a plurality of capacitors and resistors;
the synchronous rectification buck conversion chip is configured to receive 24V voltage, and the 24V voltage is converted by the synchronous rectification buck conversion chip and then outputs 5V voltage for controlling the closing of the relay;
the voltage regulation chip is configured to receive 5V voltage, and the 5V voltage is converted by the voltage regulation chip and then outputs 3V voltage for supplying power to the single chip microcomputer;
the power supply control circuit at least comprises a relay, an MOS transistor, a singlechip, a plurality of capacitors and a resistor;
the MOS transistor is configured to receive a voltage signal output by the singlechip, and a 5V voltage closed circuit is generated through the output voltage signal so as to pull in the relay, generate a 24V voltage closed circuit and output the 24V voltage closed circuit to underwater equipment.
In some embodiments, the power conversion circuit includes a synchronous rectification buck conversion chip U1, a voltage regulator chip U2, six resistors (R1, R2, R3, R4, R5, R6, respectively), eight capacitors (C1, C2, C3, C4, C5, C6, respectively), three light emitting diodes (D1, D2, D3), and an inductor L;
IN the above, the synchronous rectification buck conversion chip U1 has nine pins, which are the BS, IN, SW, GND, FB, COMP, EN, SS and PAD pins, respectively.
As above, one end of the diode D1 is connected to the positive electrode of the 24V power supply, and the other end is connected to the capacitor C1, the capacitor C2, the diode D2, the resistor R1, and the IN pin of the synchronous rectification buck conversion chip U1; the other ends of the capacitors C1 and C2 and the diode D2 are grounded; the other end of the resistor R1 is connected with a resistor R2 and an EN pin of a synchronous rectification buck conversion chip U1, and the other end of the resistor R2 is grounded;
one end of the capacitor C3 is connected with an SS pin of the synchronous rectification buck conversion chip U1, and the other end of the capacitor C3 is grounded; the GND pin and the PAD pin of the synchronous rectification buck conversion chip U1 are both grounded, one end of the capacitor C4 is connected with the BS pin of the synchronous rectification buck conversion chip U1, and the other end of the capacitor C4 is connected with the SW pin of the synchronous rectification buck conversion chip U1 and the inductor L1; the other end of the inductor L1 is connected with a resistor R5, the other end of the resistor R5 is connected with an FB pin of a synchronous rectification buck conversion chip U1 and a resistor R4, and the other end of the resistor R4 is grounded;
one end of the capacitor C5 is connected with a COMP pin of the synchronous rectification buck conversion chip U1, the other end of the capacitor C5 is connected with a resistor R3, and the other end of the resistor R3 is grounded; one end of the capacitor C6 is connected with the resistor R5 and the inductor L1, and the other end is grounded; the capacitor C7 is connected in parallel to the capacitor C6; the resistor R6 and the diode D3 are connected in parallel to C7.
The voltage regulator chip U2 has four pins, wherein the first pin is grounded, the third pin is connected with a 5V positive voltage, the second pin and the fourth pin are connected with a capacitor C8, and the other end of the capacitor C8 is grounded.
In some embodiments, the power control circuit comprises a 5VDC 2-grade contact relay K1, two fuses, a MOS transistor, a diode D4, a single chip microcomputer, three resistors (R13, R14 and R15, respectively) and a capacitor C15; when the underwater equipment needs to supply power, the singlechip outputs a voltage signal to the MOS transistor, and a 5V voltage closed circuit is generated through the output voltage signal so that the relay is attracted, and a 24V voltage closed circuit is generated and output to the underwater equipment.
Above, the relay K1 has eight pins.
As described above, the fourth pin of the relay K1 is connected to one end of the fuse F1, the other end of the fuse F1 is connected to the first pin of the VO1, the fifth pin of the relay K1 is connected to one end of the fuse F2, and the other end of the fuse F2 is connected to the second pin of the VO 1;
the third pin of the relay K1 is connected to the first pin of the terminal PWR2, the sixth pin of the relay K1 is grounded, and the eighth pin of the relay K1 is connected with a 5V positive voltage input;
one end of the diode D4 is connected with the first pin of the relay K1, the other end of the diode D4 is connected with a 5V positive voltage input, one end of the resistor R15 is connected with the first pin of the relay K1, the other end of the resistor R15 is connected with a positive 5V input, one end of the capacitor C15 is connected with the first pin of the relay K1, and the other end of the capacitor C15 is connected with a 5V positive voltage input;
the third pin of the MOS transistor Q1 is connected with the first pin of the relay K1, the second pin of the MOS transistor Q1 is grounded, the first pin of the MOS transistor Q1 is connected with the resistors R13 and R14, the other end of the resistor R14 is grounded, and the other end of the resistor R14 is connected with the pin of the single chip microcomputer.
Preferably, the model of the voltage regulating chip is LM 1117.
The utility model has the advantages that:
(1) the circuit structure of the technical scheme is simple, and the high voltage can be controlled by using the small voltage only by using the corresponding integrated chip.
(2) According to the technical scheme, the 5v stable voltage can be obtained through the synchronous rectification buck converter, the resistors and the capacitors, so that the relay can work normally.
(3) According to the technical scheme, the relay and the single chip microcomputer are used for controlling the power supply, the power supply of the underwater equipment can be remotely controlled to be closed, and the use of an operator is facilitated.
Drawings
Fig. 1 is a schematic diagram of the power conversion circuit of the present invention;
fig. 2 is a schematic diagram of the power control circuit connection according to the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings.
As shown in fig. 1 to 2, the present embodiment provides a power control circuit for an underwater device, including a power conversion circuit and a power control circuit;
the power conversion circuit at least comprises a synchronous rectification step-down conversion chip, a voltage regulator chip, a plurality of capacitors and resistors;
the synchronous rectification buck conversion chip is configured to receive 24V voltage, and the 24V voltage is converted by the synchronous rectification buck conversion chip and then outputs 5V voltage for controlling the closing of the relay;
the voltage regulation chip is configured to receive 5V voltage, and the 5V voltage is converted by the voltage regulation chip and then outputs 3V voltage for supplying power to the single chip microcomputer;
the power supply control circuit at least comprises a relay, an MOS transistor, a singlechip, a plurality of capacitors and a resistor;
the MOS transistor is configured to receive a voltage signal output by the singlechip, and a 5V voltage closed circuit is generated through the output voltage signal so as to pull in the relay, generate a 24V voltage closed circuit and output the 24V voltage closed circuit to underwater equipment.
In this embodiment, the power conversion circuit includes a synchronous rectification buck conversion chip U1, a voltage regulator chip U2, six resistors (R1, R2, R3, R4, R5, R6, respectively), eight capacitors (C1, C2, C3, C4, C5, C6, respectively), three light emitting diodes (D1, D2, D3), and an inductor L;
the synchronous rectification buck conversion chip U1 has nine pins, which are the BS, IN, SW, GND, FB, COMP, EN, SS and PAD pins, respectively.
One end of the diode D1 is connected with the anode of the 24V power supply, and the other end is connected with the capacitor C1, the capacitor C2, the diode D2, the resistor R1 and an IN pin of the synchronous rectification buck conversion chip U1; the other ends of the capacitors C1 and C2 and the diode D2 are grounded; the other end of the resistor R1 is connected with a resistor R2 and an EN pin of a synchronous rectification buck conversion chip U1, and the other end of the resistor R2 is grounded;
one end of the capacitor C3 is connected with an SS pin of the synchronous rectification buck conversion chip U1, and the other end of the capacitor C3 is grounded; the GND pin and the PAD pin of the synchronous rectification buck conversion chip U1 are both grounded, one end of the capacitor C4 is connected with the BS pin of the synchronous rectification buck conversion chip U1, and the other end of the capacitor C4 is connected with the SW pin of the synchronous rectification buck conversion chip U1 and the inductor L1; the other end of the inductor L1 is connected with a resistor R5, the other end of the resistor R5 is connected with an FB pin of a synchronous rectification buck conversion chip U1 and a resistor R4, and the other end of the resistor R4 is grounded;
one end of the capacitor C5 is connected with a COMP pin of the synchronous rectification buck conversion chip U1, the other end of the capacitor C5 is connected with a resistor R3, and the other end of the resistor R3 is grounded; one end of the capacitor C6 is connected with the resistor R5 and the inductor L1, and the other end is grounded; the capacitor C7 is connected in parallel to the capacitor C6; the resistor R6 and the diode D3 are connected in parallel to C7.
The voltage regulator chip U2 has four pins, wherein the first pin is grounded, the third pin is connected with a 5V positive voltage, the second pin and the fourth pin are connected with a capacitor C8, and the other end of the capacitor C8 is grounded.
In this embodiment, the power control circuit includes a 5VDC 2-class contact relay K1, two fuses, a MOS transistor, a diode D4, a single chip, three resistors (R13, R14 and R15, respectively), and a capacitor C15; when the underwater equipment needs to supply power, the singlechip outputs a voltage signal to the MOS transistor, and a 5V voltage closed circuit is generated through the output voltage signal so that the relay is attracted, and a 24V voltage closed circuit is generated and output to the underwater equipment.
The relay K1 has eight pins. The fourth pin of the relay K1 is connected with one end of a fuse F1, the other end of the fuse F1 is connected with the first pin of a VO1, the fifth pin of the relay K1 is connected with one end of a fuse F2, and the other end of the fuse F2 is connected with the second pin of a VO 1;
the third pin of the relay K1 is connected to the first pin of the terminal PWR2, the sixth pin of the relay K1 is grounded, and the eighth pin of the relay K1 is connected with a 5V positive voltage input;
one end of the diode D4 is connected with the first pin of the relay K1, the other end of the diode D4 is connected with a 5V positive voltage input, one end of the resistor R15 is connected with the first pin of the relay K1, the other end of the resistor R15 is connected with a positive 5V input, one end of the capacitor C15 is connected with the first pin of the relay K1, and the other end of the capacitor C15 is connected with a 5V positive voltage input;
the third pin of the MOS transistor Q1 is connected with the first pin of the relay K1, the second pin of the MOS transistor Q1 is grounded, the first pin of the MOS transistor Q1 is connected with the resistors R13 and R14, the other end of the resistor R14 is grounded, and the other end of the resistor R14 is connected with the pin of the single chip microcomputer.
In this embodiment, the model of the voltage regulation chip is LM 1117.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. A power supply control circuit for underwater equipment is characterized by comprising a power supply conversion circuit and a power supply control circuit;
the power conversion circuit at least comprises a synchronous rectification step-down conversion chip, a voltage regulator chip, a plurality of capacitors and resistors;
the synchronous rectification buck conversion chip is configured to receive 24V voltage, and the 24V voltage is converted by the synchronous rectification buck conversion chip and then outputs 5V voltage for controlling the closing of the relay;
the voltage regulation chip is configured to receive 5V voltage, and the 5V voltage is converted by the voltage regulation chip and then outputs 3V voltage for supplying power to the single chip microcomputer;
the power supply control circuit at least comprises a relay, an MOS transistor, a singlechip, a plurality of capacitors and a resistor;
the MOS transistor is configured to receive a voltage signal output by the singlechip, and a 5V voltage closed circuit is generated through the output voltage signal so as to pull in the relay, generate a 24V voltage closed circuit and output the 24V voltage closed circuit to underwater equipment.
2. The power control circuit of claim 1, wherein the power conversion circuit comprises a synchronous rectification buck conversion chip U1, a voltage regulator chip U2, six resistors, eight capacitors, three light emitting diodes, and an inductor L.
3. The power control circuit as claimed IN claim 2, wherein the synchronous rectification buck conversion chip U1 has nine pins, which are the BS, IN, SW, GND, FB, COMP, EN, SS and PAD pins, respectively.
4. The power control circuit as claimed IN claim 3, wherein one end of the diode D1 is connected to the positive electrode of the 24V power supply, and the other end is connected to the capacitor C1, the capacitor C2, the diode D2, the resistor R1 and the IN pin of the synchronous rectification buck conversion chip U1; the other ends of the capacitors C1 and C2 and the diode D2 are grounded; the other end of the resistor R1 is connected with a resistor R2 and an EN pin of a synchronous rectification buck conversion chip U1, and the other end of the resistor R2 is grounded;
one end of the capacitor C3 is connected with an SS pin of the synchronous rectification buck conversion chip U1, and the other end of the capacitor C3 is grounded; the GND pin and the PAD pin of the synchronous rectification buck conversion chip U1 are both grounded, one end of the capacitor C4 is connected with the BS pin of the synchronous rectification buck conversion chip U1, and the other end of the capacitor C4 is connected with the SW pin of the synchronous rectification buck conversion chip U1 and the inductor L1; the other end of the inductor L1 is connected with a resistor R5, the other end of the resistor R5 is connected with an FB pin of a synchronous rectification buck conversion chip U1 and a resistor R4, and the other end of the resistor R4 is grounded;
one end of the capacitor C5 is connected with a COMP pin of the synchronous rectification buck conversion chip U1, the other end of the capacitor C5 is connected with a resistor R3, and the other end of the resistor R3 is grounded; one end of the capacitor C6 is connected with the resistor R5 and the inductor L1, and the other end is grounded; the capacitor C7 is connected in parallel to the capacitor C6; the resistor R6 and the diode D3 are connected in parallel to C7.
5. The power control circuit of claim 2, wherein the voltage regulator chip U2 has four pins, a first pin is connected to ground, a third pin is connected to a 5V positive voltage, a second pin and a fourth pin are connected to a capacitor C8, and the other end of the capacitor C8 is connected to ground.
6. The power control circuit as claimed in claim 1, wherein the power control circuit comprises a 5VDC 2-class contact relay K1, two fuses, a MOS transistor, a diode D4, a single chip, three resistors and a capacitor C15.
7. The power control circuit of claim 6, wherein the relay K1 has eight pins.
8. The power supply control circuit according to claim 7, wherein the fourth pin of the relay K1 is connected with one end of a fuse F1, the other end of the fuse F1 is connected with the first pin of a VO1, the fifth pin of the relay K1 is connected with one end of a fuse F2, and the other end of the fuse F2 is connected with the second pin of a VO 1;
the third pin of the relay K1 is connected to the first pin of the terminal PWR2, the sixth pin of the relay K1 is grounded, and the eighth pin of the relay K1 is connected with a 5V positive voltage input;
one end of the diode D4 is connected with the first pin of the relay K1, the other end of the diode D4 is connected with a 5V positive voltage input, one end of the resistor R15 is connected with the first pin of the relay K1, the other end of the resistor R15 is connected with a positive 5V input, one end of the capacitor C15 is connected with the first pin of the relay K1, and the other end of the capacitor C15 is connected with a 5V positive voltage input;
the third pin of the MOS transistor Q1 is connected with the first pin of the relay K1, the second pin of the MOS transistor Q1 is grounded, the first pin of the MOS transistor Q1 is connected with the resistors R13 and R14, the other end of the resistor R14 is grounded, and the other end of the resistor R14 is connected with the pin of the single chip microcomputer.
9. The power control circuit of claim 5, wherein the voltage regulator chip is of type LM 1117.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921135620.0U CN209963968U (en) | 2019-07-18 | 2019-07-18 | Power supply control circuit for underwater equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921135620.0U CN209963968U (en) | 2019-07-18 | 2019-07-18 | Power supply control circuit for underwater equipment |
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| CN209963968U true CN209963968U (en) | 2020-01-17 |
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| CN201921135620.0U Active CN209963968U (en) | 2019-07-18 | 2019-07-18 | Power supply control circuit for underwater equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490533A (en) * | 2020-04-26 | 2020-08-04 | 中国科学院声学研究所 | Underwater power supply suitable for constant-current power supply type seabed observation network |
| CN112227841A (en) * | 2020-09-02 | 2021-01-15 | 国网浙江永嘉县供电有限公司 | Control device for multi-cabinet-room key cabinet |
| CN114786300A (en) * | 2022-04-28 | 2022-07-22 | 中国第一汽车股份有限公司 | Welcome lamp circuit, device, welcome lamp and automobile provided with same |
-
2019
- 2019-07-18 CN CN201921135620.0U patent/CN209963968U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111490533A (en) * | 2020-04-26 | 2020-08-04 | 中国科学院声学研究所 | Underwater power supply suitable for constant-current power supply type seabed observation network |
| CN111490533B (en) * | 2020-04-26 | 2020-12-29 | 中国科学院声学研究所 | Underwater power supply suitable for constant-current power supply type seabed observation network |
| CN112227841A (en) * | 2020-09-02 | 2021-01-15 | 国网浙江永嘉县供电有限公司 | Control device for multi-cabinet-room key cabinet |
| CN114786300A (en) * | 2022-04-28 | 2022-07-22 | 中国第一汽车股份有限公司 | Welcome lamp circuit, device, welcome lamp and automobile provided with same |
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