CN215186679U - Control circuit of electronic equipment - Google Patents
Control circuit of electronic equipment Download PDFInfo
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- CN215186679U CN215186679U CN202120231092.XU CN202120231092U CN215186679U CN 215186679 U CN215186679 U CN 215186679U CN 202120231092 U CN202120231092 U CN 202120231092U CN 215186679 U CN215186679 U CN 215186679U
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- 230000005059 dormancy Effects 0.000 claims abstract description 14
- 230000007958 sleep Effects 0.000 description 14
- NNJVILVZKWQKPM-UHFFFAOYSA-N Lidocaine Chemical group CCN(CC)CC(=O)NC1=C(C)C=CC=C1C NNJVILVZKWQKPM-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The utility model discloses an electronic equipment's control circuit, include: the power supply device comprises a power supply end, a dormancy end and a first electronic switch; the power supply end is connected with the input end of the first electronic switch, the power supply end is connected with the output end of the first electronic switch, and the dormancy end is connected with the control end of the first electronic switch; when the electronic equipment is in a dormant state, the dormant end controls the first electronic switch to be disconnected so that the power supply end is disconnected with the power supply end. The utility model discloses technical scheme can be at electronic equipment power off when not using, saves electronic equipment's consumption, increases electronic equipment's continuation of the journey.
Description
Technical Field
The utility model relates to a computer field, in particular to electronic equipment's control circuit.
Background
Notebook computers are electronic products commonly used in daily work and life of people. When the existing notebook computer is used, a 3.3V power supply needs to be switched on, and when the notebook computer is in a dormant state or a sleeping state, the 3.3V power supply is not switched off, so that components powered by the 3.3V power supply on a mainboard are in a working state, and the notebook computer also has certain power loss and is not energy-saving enough when not used (in the dormant state and the sleeping mode).
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electronic equipment's control circuit, aim at electronic equipment power off when not using, save electronic equipment's consumption, increase electronic equipment's continuation of the journey.
In order to achieve the above object, the present invention provides a control circuit for an electronic device, including: the power supply device comprises a power supply end, a dormancy end and a first electronic switch; the power supply end is connected with the input end of the first electronic switch, the power supply end is connected with the output end of the first electronic switch, and the dormancy end is connected with the control end of the first electronic switch; when the electronic equipment is in a dormant state, the dormant end controls the first electronic switch to be disconnected so that the power supply end is disconnected with the power supply end.
Optionally, the control circuit of the electronic device further comprises: and the dormancy end of the second electronic switch is connected with the control end of the second electronic switch, the input end of the second electronic switch is grounded, and the output end of the second electronic switch is connected with the control end of the first electronic switch.
Optionally, the control circuit of the electronic device further comprises: and the dormancy end of the third electronic switch is connected with the control end of the third electronic switch, the input end of the third electronic switch is grounded, the output end of the third electronic switch is connected with the control end of the second electronic switch, and the output end of the third electronic switch is also connected with the output end of the first electronic switch.
Optionally, the control circuit of the electronic device further comprises: and the Hall sensor is connected with the control end of the second electronic switch.
Optionally, the control circuit of the electronic device further comprises: and the Hall sensor is connected with the control end of the second electronic switch through the first diode.
Optionally, the control circuit of the electronic device further comprises: and the USB interface is connected with the control end of the first electronic switch.
Optionally, the control circuit of the electronic device further comprises: and the USB interface is connected with the control end of the first electronic switch through the second diode.
Optionally, the control circuit of the electronic device further comprises: and the power key is connected with the control end of the first electronic switch.
Optionally, the control circuit of the electronic device further comprises: and the power key is connected with the control end of the first electronic switch through the third diode.
Optionally, the first electronic switch is a P-type MOS transistor, the second electronic switch and the third electronic switch are both N-type MOS transistors, a gate of the MOS transistor is a control end, a source of the MOS transistor is an input end, and a drain of the MOS transistor is an output end.
In the technical scheme of the utility model, set up the power end and be connected with first electronic switch's input, the feeder ear is connected with first electronic switch's output, the dormancy end is connected with first electronic switch's control end, when being in the dormant state through electronic equipment, the disconnection of dormancy end control first electronic switch, so that power end and feeder ear disconnection, realize electronic equipment and close the function of power when not using (entering dormancy or sleep state), can greatly save the consumption of electronic equipment, thereby increase the continuation of the journey of electronic equipment; moreover, the utility model discloses a circuit structure realizes through simple components and parts design, and control is simple, and the cost is lower.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a control circuit of an electronic device according to the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides an electronic equipment's control circuit.
In the embodiment of the present invention, as shown in fig. 1, the control circuit of the electronic device includes: a power supply terminal PP3300_ LDO _ Z, a power supply terminal EN _ PP3300_ G, a sleep terminal EN _ SLP _ Z and a first electronic switch Q18; the power supply terminal PP3300_ LDO _ Z is connected to the input terminal of the first electronic switch Q18, the power supply terminal EN _ PP3300_ G is connected to the output terminal of the first electronic switch Q18, and the sleep terminal EN _ SLP _ Z is connected to the control terminal of the first electronic switch Q18; when the electronic device is in a sleep state, the sleep terminal EN _ SLP _ Z controls the first electronic switch Q18 to be turned off, so that the power terminal PP3300_ LDO _ Z is disconnected from the power supply terminal EN _ PP3300_ G.
It should be noted that the control circuit of the electronic device of the present invention can be applied to electronic devices such as computers, and for convenience of description, the following description will exemplify the control circuit of the electronic device of the present invention as an application object of the computer. The computer is provided with a 3.3V power supply IC, and a power supply end PP3300_ LDO _ Z and a power supply end EN _ PP3300_ G are arranged on the 3.3V power supply IC.
In this embodiment, the first electronic switch Q18 may be a MOS transistor, a triode, or other electronic switch, and the first electronic switch Q18 is a P-type MOS transistor, a control terminal of the first electronic switch Q18 is a gate G of the MOS transistor, an input terminal of the first electronic switch Q18 is a source S of the MOS transistor, and an output terminal of the first electronic switch Q18 is a drain D of the MOS transistor. The characteristics of the P-type MOS tube are as follows: the Vgs value is larger than a certain value and will turn on, suitable for the case when the source is grounded (low side drive), as long as the gate voltage is larger than the Vgs given in the parameter manual, the drain D is connected to the power supply and the source S is grounded. It should be noted that Vgs refers to the voltage difference between the gate G and the source S, so when the NMOS is driven as high side, when the drain D and the source S are turned on, the drain D and the source S are at the same potential, and the gate G must be higher than the source S and the drain D, so that the drain D and the source S can continue to be turned on.
It can be understood that, when the computer is in use, the input terminal and the output terminal of the first electronic switch Q18 are turned on, that is, the first electronic switch Q18 is in a conducting state, at this time, the power supply terminal PP3300_ LDO _ Z can supply power to the power supply terminal EN _ PP3300_ G, the power supply IC of 3.3V is turned on, and the power supply IC can supply power to the connected components; when the computer is not used (enters a sleep state or a sleep state), the sleep terminal EN _ SLP _ Z sends a signal to the control terminal of the first electronic switch Q18, the input terminal and the output terminal of the first electronic switch Q18 are disconnected, that is, the first electronic switch Q18 is not turned on, at this time, the power supply terminal PP3300_ LDO _ Z cannot supply power to the power supply terminal EN _ PP3300_ G, the power supply IC of 3.3V is not turned on, and the components connected with the power supply IC cannot work.
In the technical scheme of the utility model, through increasing dormancy end EN _ SLP _ Z and first electronic switch Q18 in current computer control circuit, realize the function that the computer closed the 3.3V power when not using (entering dormancy or sleep state), can save the consumption of computer greatly to increase the continuation of the journey of computer; moreover, the utility model discloses a circuit structure realizes through simple components and parts design, and control is simple, and the cost is lower.
Further, the control circuit of the electronic device further includes: the sleep terminal EN _ SLP _ Z of the second electronic switch Q17 is connected with the control terminal of the second electronic switch Q17, the input terminal of the second electronic switch Q17 is grounded, and the output terminal of the second electronic switch Q17 is connected with the control terminal of the first electronic switch.
In this embodiment, the second electronic switch Q17 is an N-type MOS transistor, the control terminal of the second electronic switch Q17 is the gate G of the MOS transistor, the input terminal of the second electronic switch Q17 is the source S of the MOS transistor, and the output terminal of the second electronic switch Q17 is the drain D of the MOS transistor. The characteristics of the N-type MOS tube are as follows: when Vgs is smaller than a certain value, the transistor will be turned on, and is suitable for use in the case where the source is connected to VCC (high-side driving). It should be noted that Vgs refers to the voltage of the gate G and the source S, i.e. the gate turns on at a certain voltage below the power supply, not the voltage relative to ground.
In this embodiment, the first electronic switch Q18 is connected to the power supply terminal PP3300_ LDO _ Z and the power supply terminal EN _ PP3300_ G of the power IC through the second electronic switch Q17, and the second electronic switch Q17 can be used to arrange other circuits of the computer, such as connecting a hall sensor, so as to ensure that the normal operation and other modes of the computer are not affected.
Further, the control circuit of the electronic device further includes: the sleep terminal EN _ SLP _ Z of the third electronic switch Q19 is connected to the control terminal of the third electronic switch Q19, the input terminal of the third electronic switch Q19 is grounded, the output terminal of the third electronic switch Q19 is connected to the control terminal of the second electronic switch Q17, and the output terminal of the third electronic switch Q19 is further connected to the output terminal of the first electronic switch Q18.
In this embodiment, the third electronic switch Q19 is an N-type MOS transistor, the control terminal of the third electronic switch Q19 is the gate G of the MOS transistor, the input terminal of the third electronic switch Q19 is the source S of the MOS transistor, and the output terminal of the third electronic switch Q19 is the drain D of the MOS transistor. The characteristics of the N-type MOS tube are as follows: when Vgs is smaller than a certain value, the transistor will be turned on, and is suitable for use in the case where the source is connected to VCC (high-side driving). It should be noted that Vgs refers to the voltage of the gate G and the source S, i.e. the gate turns on at a certain voltage below the power supply, not the voltage relative to ground.
When the computer is not in use (enters a sleep mode or a sleep mode), the sleep terminal EN _ SLP _ Z sends a signal, the third electronic switch Q19 is turned on, the second electronic switch Q17 and the first electronic switch Q18 are not turned on at this time, and the power supply terminal PP3300_ LDO _ Z cannot supply power to the power supply terminal EN _ PP3300_ G, that is, the power supply IC of 3.3V is not turned on.
In this embodiment, the first electronic switch Q18 is connected to the power supply terminal PP3300_ LDO _ Z and the power supply terminal EN _ PP3300_ G of the power supply IC through the second electronic switch Q17 and the third electronic switch Q19, and other circuits of the computer, such as a USB interface and a power key, can be arranged by the third electronic switch Q19, so as to ensure that the functions of the computer in normal operation and other modes are not affected.
In an embodiment of the present invention, the control circuit of the electronic device further includes: and the Hall sensor is connected with the control end of the second electronic switch Q17.
In this embodiment, the hall sensor can be located at the hinge of the notebook computer, keyboard and screen are connected respectively to the hinge both sides of the notebook computer, when the notebook computer flip opened, the hall sensor can sense relevant action, LID _ OPEN signal can become the high level, first diode D28 right-hand member can become the high level, second electronic switch Q17 switches on this moment, then grid G of first electronic switch Q18 can be pulled down, first electronic switch Q18 switches on, third electronic switch Q19 does not switch on this moment, the electricity of power end PP3300_ LDO _ Z can give power to power supply end EN _ PP3300_ G, 3.3V's power IC OPENs, the computer normally works.
Specifically, the anode of the first diode D28 is connected to the hall sensor via the capacitor C289, and the cathode of the first diode D28 is connected to the control terminal of the second electronic switch Q17.
In an embodiment of the present invention, the control circuit of the electronic device further includes: and the USB interface is connected with the control end of the first electronic switch Q18.
When a device of Type-C is plugged into the USB interface, the USB _ C0_ CHARGER _ INT _ ODL signal is pulled low, the right end of the second diode D29 becomes low level, at this time, the first electronic switch Q18 is turned on, the third electronic switch Q19 is not turned on, the power supply end PP3300_ LDO _ Z supplies power to the power supply end EN _ PP3300_ G, the power supply IC of 3.3V is turned on, and the computer can work normally.
Specifically, the anode of the second diode D29 is connected to the control terminal of the first electronic switch Q18, and the cathode of the second diode D29 is connected to the USB interface.
In an embodiment of the present invention, the control circuit of the electronic device further includes: and the power key is connected with the control end of the first electronic switch Q18.
When the power key is pressed, the PWR _ BTN _ ODL signal is pulled low, the right end of the third diode D141 changes to a low level, the P-MOS first electronic switch Q18 is turned on, the third electronic switch Q19 is turned off, the power supply terminal PP3300_ LDO _ Z supplies power to the power supply terminal EN _ PP3300_ G, the 3.3V power supply IC is turned on, and the computer can operate normally.
Specifically, the third diode D141 is connected to the control terminal of the first electronic switch Q18, and the cathode of the third diode D141 is connected to the power supply terminal.
In an embodiment, the power supply terminal PP3300_ LDO _ Z is further connected to the power supply terminal EN _ PP3300_ G through the resistor R301, and is used as a reserved line, which facilitates debugging when a circuit has a problem. In addition, still be equipped with a plurality of branches that pass through resistance ground in above-mentioned electronic equipment's the control circuit, can realize the effect of pulling up and down, still be equipped with a plurality of branches that pass through capacitance ground in above-mentioned electronic equipment's the control circuit, the cleanliness factor of some clutter of accessible capacitance filtering promotes the signal, this belongs to the conventional technical means in this field, no longer gives details.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A control circuit for an electronic device, comprising: the power supply device comprises a power supply end, a dormancy end and a first electronic switch;
the power supply end is connected with the input end of the first electronic switch, the power supply end is connected with the output end of the first electronic switch, and the dormancy end is connected with the control end of the first electronic switch;
when the electronic equipment is in a dormant state, the dormant end controls the first electronic switch to be disconnected so that the power supply end is disconnected with the power supply end.
2. The control circuit of an electronic device according to claim 1, further comprising:
and the dormancy end of the second electronic switch is connected with the control end of the second electronic switch, the input end of the second electronic switch is grounded, and the output end of the second electronic switch is connected with the control end of the first electronic switch.
3. The control circuit of an electronic device according to claim 2, further comprising:
and the dormant end of the third electronic switch is connected with the control end of the third electronic switch, the input end of the third electronic switch is grounded, the output end of the third electronic switch is connected with the control end of the second electronic switch, and the output end of the third electronic switch is also connected with the output end of the first electronic switch.
4. The control circuit of an electronic device according to claim 2, further comprising:
and the Hall sensor is connected with the control end of the second electronic switch.
5. The control circuit of an electronic device according to claim 4, wherein the control circuit of the electronic device further comprises:
and the Hall sensor is connected with the control end of the second electronic switch through the first diode.
6. The control circuit of an electronic device according to any one of claims 1 to 5, further comprising:
and the USB interface is connected with the control end of the first electronic switch.
7. The control circuit of an electronic device according to claim 6, further comprising:
and the USB interface is connected with the control end of the first electronic switch through the second diode.
8. The control circuit of an electronic device according to any one of claims 1 to 5, further comprising:
and the power key is connected with the control end of the first electronic switch.
9. The control circuit of an electronic device according to claim 8, further comprising:
and the power key is connected with the control end of the first electronic switch through the third diode.
10. The control circuit of claim 3, wherein the first electronic switch is a P-type MOS transistor, the second electronic switch and the third electronic switch are both N-type MOS transistors, a gate of the MOS transistor is a control terminal, a source of the MOS transistor is an input terminal, and a drain of the MOS transistor is an output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120231092.XU CN215186679U (en) | 2021-01-26 | 2021-01-26 | Control circuit of electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120231092.XU CN215186679U (en) | 2021-01-26 | 2021-01-26 | Control circuit of electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215186679U true CN215186679U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120231092.XU Active CN215186679U (en) | 2021-01-26 | 2021-01-26 | Control circuit of electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215186679U (en) |
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2021
- 2021-01-26 CN CN202120231092.XU patent/CN215186679U/en active Active
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Effective date of registration: 20231114 Address after: 518000, 4th Floor, No. 31, Xiacun Community, Gongming Street, Guangming District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Baoxinchuang Information Technology Co.,Ltd. Address before: 518000 501-2, building a, wisdom Plaza, 4068 Qiaoxiang Road, Gaofa community, Shahe street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen baoxinchuang Technology Co.,Ltd. |