CN213152029U - Toggle switching circuit, power supply circuit and electronic equipment - Google Patents
Toggle switching circuit, power supply circuit and electronic equipment Download PDFInfo
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- CN213152029U CN213152029U CN202021554587.8U CN202021554587U CN213152029U CN 213152029 U CN213152029 U CN 213152029U CN 202021554587 U CN202021554587 U CN 202021554587U CN 213152029 U CN213152029 U CN 213152029U
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Abstract
The utility model is suitable for a power supply circuit technical field especially relates to a toggle switch circuit, power supply circuit and electronic equipment, wherein, toggle switch circuit includes toggle switch, first resistance, the second resistance, first electronic switch pipe, energy storage electric capacity and control circuit, through increasing energy storage electric capacity and the ratio that changes first resistance and second resistance, control circuit is when receiving trigger signal entering standby mode, output high level shutdown signal to first electronic switch pipe, pull high level shutoff on the grid of first electronic switch pipe, the power outage, thereby solved traditional toggle switch circuit and had the problem that standby mode can't cut off the power supply, reduce the energy consumption.
Description
Technical Field
The utility model belongs to the technical field of power supply circuit, especially, relate to a toggle switch circuit, power supply circuit and electronic equipment.
Background
At present, the conventional electronic device using a toggle switch to control a power supply is provided, the toggle switch controls the power supply of the whole product, as shown in fig. 1, when the toggle switch 10 is toggled in one direction, the toggle switch 10 is grounded, the resistor R2 is connected with the toggle switch 10 to pull down the gate level of the MOS transistor Q1, the MOS transistor Q1 is always in a conducting state to supply power to an earphone circuit, when the electronic device does not work in a preset time or the power module has a power amount lower than a preset power amount, the electronic device is automatically turned off to enter a standby mode, but because the second resistor R2 is far smaller than the first resistor R1, the voltage division of the second resistor R2 is small, the toggle switch 10 pulls down the gate of the MOS transistor Q1 to make the transistor be always in a conducting state, the power supply cannot be powered off, and the.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a toggle switch circuit aims at solving traditional toggle switch circuit and has the problem that standby mode can't cut off the power supply.
The embodiment of the utility model provides a first aspect provides a toggle switch machine circuit, and toggle switch machine circuit includes toggle switch, first resistance, second resistance, first electronic switch pipe, energy storage capacitor and control circuit;
the first end of the first resistor and the source electrode of the first electronic switching tube are connected together to form a power input end of the toggle switch circuit and used for being connected with a direct-current power supply, the drain electrode of the first electronic switch tube is the power output end of the toggle switch circuit, the first end of the first resistor, the first end of the second resistor, the first end of the energy storage capacitor, the grid electrode of the first electronic switch tube and the signal end of the control circuit are interconnected, the second end of the second resistor, the second end of the energy storage capacitor and the first end of the toggle switch are connected, the second end of the toggle switch is grounded, the first end and the second end of the toggle switch are communicated when the toggle switch is toggled along a first direction, when the toggle switch is toggled and reset along the direction opposite to the first direction, the first end and the second end of the toggle switch are disconnected;
the energy storage capacitor is used for charging when the first end and the second end of the toggle switch are connected and discharging when the first end and the second end of the toggle switch are disconnected;
the first electronic switch tube is used for being switched on when the first end and the second end of the toggle switch are communicated and being switched off when the first end and the second end of the toggle switch are disconnected;
the control circuit is used for outputting a low-level power-on signal to control the first electronic switching tube to be normally on after the first end and the second end of the toggle switch are connected, and outputting a high-level power-off signal to control the first electronic switching tube to be switched off according to a trigger signal;
wherein a resistance ratio of the first resistance to the second resistance is 1: n, wherein N is greater than or equal to 5 and less than or equal to 15;
and the product of the capacitance value of the energy storage capacitor and the resistance value of the second resistor is equal to a preset time constant.
In one embodiment, the drain of the first electronic switch tube is also connected with a power supply end of the control circuit;
the control circuit is used for electrifying and working when the first electronic switching tube is switched on, outputting a low-level power-on signal to control the first electronic switching tube to be normally switched on, and outputting a high-level power-off signal to control the first electronic switching tube to be switched off according to a trigger signal.
In one embodiment, the toggle switch machine circuit further comprises a voltage detection circuit, and the voltage detection circuit is respectively connected with the power input end of the toggle switch machine circuit and the control circuit;
the voltage detection circuit is used for detecting the terminal voltage of the power supply input end of the toggle switch circuit and feeding back a voltage detection signal to the control circuit;
the control circuit is further used for outputting a high-level shutdown signal to control the first electronic switching tube to be turned off when the voltage of the voltage detection signal is smaller than a preset voltage.
In one embodiment, the control circuit comprises a controller, a third resistor, a fourth resistor, a fifth resistor, a first capacitor and a second electronic switch tube;
the signal end of the controller is connected with the first end of the third resistor, the second end of the third resistor, the first end of the fourth resistor, the first end of the first capacitor and the base of the second electronic switching tube are interconnected, the second end of the fourth resistor, the second end of the first capacitor and the emitting electrode of the second electronic switching tube are all grounded, the collector of the second electronic switching tube is connected with the first end of the fifth resistor, the second end of the fifth resistor is connected with the grid of the first electronic switching tube, and the controller is respectively electrically connected with the drain of the first electronic switching tube and the voltage detection circuit.
In one embodiment, the toggle on-off circuit further comprises a power conversion circuit, an input end of the power conversion circuit is connected with a drain electrode of the first electronic switching tube, and an output end of the power conversion circuit and a power end of the controller are connected in common to form a power output end of the toggle on-off circuit;
the power supply conversion circuit is used for converting an input direct-current power supply into a voltage signal with a preset size.
In one embodiment, the power conversion circuit includes a voltage regulator, and the input and the output of the voltage regulator are the input and the output of the power conversion circuit, respectively.
The utility model provides a second aspect provides a power supply circuit, power supply circuit include power module and as above the formula of stirring switching on and shutting down circuit.
In one embodiment, the power module is a battery.
A third aspect of the embodiments of the present invention provides an electronic device including the toggle switch circuit as described above or including the power supply circuit as described above.
In one embodiment, the electronic device is a headset.
Compared with the prior art, the embodiment of the utility model beneficial effect who exists is: the toggle switch circuit is characterized in that the energy storage capacitor is added, the ratio of the first resistor to the second resistor is changed, the control circuit outputs a high-level shutdown signal to the first electronic switching tube when receiving the trigger signal and entering the standby mode, the grid of the first electronic switching tube is pulled up to the high level shutdown, and the power supply is powered off, so that the problem that the conventional toggle switch circuit cannot be powered off in the standby mode is solved, and the energy consumption is reduced.
Drawings
FIG. 1 is a schematic diagram of a conventional toggle switch circuit;
fig. 2 is a schematic view of a first structure of a toggle switch circuit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a second structure of a toggle switch circuit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a third toggle switch circuit according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a fourth structure of a toggle switch circuit according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a power supply circuit according to an embodiment of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
A first aspect of the embodiments of the present invention provides a toggle on/off circuit 100.
As shown in fig. 2, fig. 2 is a first schematic structural diagram of the toggle on/off circuit 100 according to the embodiment of the present invention, the toggle on/off circuit 100 includes a toggle switch 10, a first resistor R1, a second resistor R2, a first electronic switch Q1, an energy storage capacitor C1, and a control circuit 20;
the first end of the first resistor R1 and the source of the first electronic switch tube Q1 are connected in common to form a power input end VCC of the toggle on-off circuit 100 and used for being connected with a direct-current power supply, the drain of the first electronic switch tube Q1 is a power output end VOUT of the toggle on-off circuit 100, the first end of the first resistor R1, the first end of the second resistor R2, the first end of the energy storage capacitor C1, the grid of the first electronic switch tube Q1 and the signal end of the control circuit 20 are interconnected, the second end of the second resistor R2, the second end of the energy storage capacitor C1 and the first end of the toggle switch 10 are connected, the second end of the toggle switch 10 is grounded, the first end and the second end of the toggle switch 10 are connected when the toggle switch 10 is toggled along a first direction, and the first end and the second end of the toggle switch 10 are disconnected when the toggle reset is toggled along a direction opposite to the first direction;
the energy storage capacitor C1 is used for charging when the first end and the second end of the toggle switch 10 are connected and discharging when the first end and the second end of the toggle switch 10 are disconnected;
a first electronic switch tube Q1, for turning on when the first end and the second end of the toggle switch 10 are connected, and turning off when the first end and the second end of the toggle switch 10 are disconnected;
the control circuit 20 is configured to output a low-level power-on signal to control the first electronic switching tube Q1 to be normally on after the first end and the second end of the toggle switch 10 are connected, and output a high-level power-off signal to control the first electronic switching tube Q1 to be turned off according to the trigger signal;
the resistance ratio of the first resistor R1 to the second resistor R2 is 1: n, wherein N is greater than or equal to 5 and less than or equal to 15;
the product of the capacitance value of the energy storage capacitor C1 and the resistance value of the second resistor R2 is equal to the preset time constant.
In this embodiment, the toggle switch circuit 100 is suitable for an electronic device with a toggle switch 10, such as a game headset, a mobile phone, and the like, in one embodiment, the electronic device is an earphone, an input end of the toggle switch circuit 100 is used for connecting the power module 200 and inputting a dc power, an output end of the toggle switch circuit 100 directly outputs the dc power required by the functional modules in the electronic device or by switching, for example, outputs the dc power to the functional modules such as a player, a controller, and the like, and the power module 200 may be a combined circuit of a battery and a corresponding switching circuit, or a single battery, and the specific structure is not limited.
When the electronic device is turned on, the toggle switch 10 is toggled along a first direction, a mechanical structure inside the toggle switch 10 connects the first end and the second end of the toggle switch 10 to ground, the first resistor R1 discharges to ground through the energy storage capacitor C1, so that the gate level of the first electronic switch tube Q1 is reduced, the first electronic switch tube Q1 is instantly turned on, the power supply outputs through the first electronic switch tube Q1 and charges the energy storage capacitor C1, the voltage of the connection node of the first resistor R1 and the second resistor R2 gradually rises, the control circuit 20 outputs a low-level turn-on signal to the first electronic switch tube Q1 after detecting that the first electronic switch tube Q1 is turned on, and pulls the level of the connection node of the first resistor R1 and the second resistor R2 to a low level, the first electronic switch tube Q1 keeps normally on after receiving the low level, so that the first electronic switch tube Q1 also keeps on state when the energy storage capacitor C1 is fully charged, thereby continuously supplying power to the subsequent stage circuit.
When the electronic device is turned off, the toggle switch 10 is toggled in the opposite direction to reset, the first end and the second end of the toggle switch 10 are disconnected, the energy storage capacitor C1 discharges electricity through the second resistor R2, the grid of the first electronic switch tube Q1 is at a high level, and the first electronic switch tube Q1 is disconnected, so that the first resistor R1 charges the energy storage capacitor C1 after the electronic device is turned on again to realize the next turn-on.
When entering the standby mode, the control circuit 20 outputs a high-level shutdown signal to the gate of the first electronic switch Q1, the gate of the first electronic switch Q1 is pulled up to a high level and is turned off, and the power supply is powered off, thereby reducing power consumption.
The first resistor R1 and the second resistor R2 form a resistor voltage dividing circuit, and the resistance values of the first resistor R1 and the second resistor R2 are adjusted, namely, the resistance value ratio of the first resistor R1 to the second resistor R2 is limited to 1: 5 to 1: within 15 ranges, the conducting state of the first electronic switching tube Q1 changes correspondingly along with the level state output by the control circuit 20, the problem that the grid of the first electronic switching tube Q1 is not clamped to a low level to cause normal on is avoided, and the energy storage capacitor C1 is arranged to realize charging and discharging on/off, so that stable switching of multiple on/off operations is ensured, and the product of the capacitance value of the energy storage capacitor C1 and the resistance value of the second resistor R2 is equal to a preset time constant, that is, τ is equal to RC, and τ is a time constant.
Compared with the prior art, the embodiment of the utility model beneficial effect who exists is: the circuit of the toggle switch circuit 100 is characterized in that the energy storage capacitor C1 is added, the ratio of the first resistor R1 to the second resistor R2 is changed, when the control circuit 20 receives a trigger signal and enters a standby mode, a high-level shutdown signal is output to the first electronic switch tube Q1, the grid of the first electronic switch tube Q1 is pulled up to a high level to be shut down, and a power supply is powered off, so that the problem that the conventional toggle switch circuit 100 cannot be powered off in the standby mode is solved, and energy consumption is reduced.
As shown in fig. 2, in one embodiment, the drain of the first electronic switch Q1 is further connected to a power supply terminal of the control circuit 20;
the control circuit 20 is configured to power on and operate when the first electronic switch Q1 is turned on, output a low-level power-on signal to control the first electronic switch Q1 to be normally on, and output a high-level power-off signal to control the first electronic switch Q1 to be turned off according to the trigger signal.
In this embodiment, the control circuit 20 and the post-stage circuit both obtain a working power supply from the output end of the toggle on/off circuit 100, when the electronic device is turned on, the toggle switch 10 is toggled in a first direction, the internal mechanical structure of the toggle switch 10 connects the first end and the second end of the toggle switch 10 to ground, the first resistor R1 and the energy storage capacitor C1 discharge to ground, so that the gate level of the first electronic switch Q1 is reduced, the first electronic switch Q1 is instantly turned on, the power supply is output through the first electronic switch Q1 and charges the energy storage capacitor C1, the voltage of the connection node between the first resistor R1 and the second resistor R2 gradually rises, the control circuit 20 is powered on and starts up, and outputs a low-level power-on signal to the first electronic switch Q1, and pulls down the level of the connection node between the first resistor R1 and the second resistor R2 to a low level, the first electronic switch Q1 keeps normally on after receiving the low level, so that the first electronic switch Q1 is always kept in a conducting state when the energy storage capacitor C1 is fully charged, thereby continuously supplying power to the subsequent circuit.
When the electronic equipment is turned off, the toggle switch 10 toggles in the opposite direction to reset, the first end and the second end of the toggle switch 10 are disconnected, the energy storage capacitor C1 discharges electricity through the second resistor R2, the grid of the first electronic switch tube Q1 is at a high level, the first electronic switch tube Q1 is disconnected, and the control circuit 20 stops working, so that the energy storage capacitor C1 is charged by the first resistor R1 after the electronic equipment is turned on again to realize next turn-on.
When entering the standby mode, the control circuit 20 outputs a high-level shutdown signal to the gate of the first electronic switch Q1, the gate of the first electronic switch Q1 is pulled up to a high level to be cut off, the power supply is powered off, and thus, the power consumption is reduced, and the control circuit 20 enters the standby mode.
As shown in fig. 3, in an embodiment, the toggle switch circuit 100 further includes a voltage detection circuit 20, and the voltage detection circuit 20 is respectively connected to the power input VCC of the toggle switch circuit 100 and the control circuit 20;
the voltage detection circuit 20 is configured to detect a terminal voltage of a power input VCC of the toggle on/off circuit 100, and feed back a voltage detection signal to the control circuit 20;
the control circuit 20 is further configured to output a high-level shutdown signal to control the first electronic switching tube Q1 to turn off when the voltage of the voltage detection signal is less than the preset voltage.
In this embodiment, the voltage detection circuit 20 is configured to feed back the voltage of the power input VCC of the toggle switching on and off circuit 100, and when the input voltage is smaller than the working voltage of the current electronic device, that is, the voltage of the voltage detection signal is smaller than the preset voltage, the control circuit 20 outputs a high-level shutdown signal, so as to control the first electronic switching tube Q1 to be turned off, thereby cutting off the power output, and avoiding abnormal operation of the rear-end functional module due to the low voltage.
As shown in fig. 5, in one embodiment, the control circuit 20 includes a controller (not shown), a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first capacitor C2, and a second electronic switch Q2;
the signal end of the controller is connected to the first end of the third resistor R3, the second end of the third resistor R3, the first end of the fourth resistor R4, the first end of the first capacitor C2 and the base of the second electronic switch Q2 are interconnected, the second end of the fourth resistor R4, the second end of the first capacitor C2 and the emitter of the second electronic switch Q2 are all grounded, the collector of the second electronic switch Q2 is connected to the first end of the fifth resistor R5, the second end of the fifth resistor R5 is connected to the gate of the first electronic switch Q1, and the controller is further electrically connected to the drain of the first electronic switch Q1 and the voltage detection circuit 20, respectively.
In this embodiment, the third resistor R3, the fourth resistor R4, the fifth resistor R5, the first capacitor C2 and the second electronic switch Q2 form a level conversion circuit, the second electronic switch Q2 is an NPN transistor, the NPN transistor has a switching function and a signal amplification function, the controller outputs a high level to the second electronic switch Q2 after the first electronic switch Q1 is turned on and turned on, the second electronic switch Q2 is turned on, the gate of the first electronic switch Q1 is grounded to a low level, the first electronic switch Q1 is continuously turned on, when the voltage of the power input VCC of the toggle switch circuit 100 is too low or when the electronic device is detected not working in the standby mode or turned off within a preset time, the controller outputs a low level to the second electronic switch Q2, the collector of the second electronic switch Q2 is at a high level, the first electronic switch Q1 is turned off, thereby controlling the electronic equipment to enter a standby state or a power-off state.
As shown in fig. 4, in one embodiment, the toggle switch circuit 100 further includes a power conversion circuit 40, an input terminal of the power conversion circuit 40 is connected to a drain of the first electronic switch Q1, and an output terminal of the power conversion circuit 40 is connected to a power source terminal of the controller to form a power output terminal VOUT of the toggle switch circuit 100;
the power conversion circuit 40 is configured to convert an input dc power into a voltage signal with a preset magnitude.
In this embodiment, since the voltage levels of the functional modules in the electronic device and the input power are different, a power conversion circuit 40 is further disposed between the output end of the first electronic switching tube Q1 and the toggle switching circuit 100 for performing voltage conversion and outputting a voltage signal satisfying a subsequent circuit, the power conversion circuit 40 may be a DC/DC conversion circuit, an LDO voltage regulator circuit, or the like, and in one embodiment, as shown in fig. 5, the power conversion circuit 40 includes a voltage regulator, and an input end and an output end of the voltage regulator are respectively an input end and an output end of the power conversion circuit 40.
As shown in fig. 6, the second aspect of the embodiment of the present invention provides a power circuit, which includes a power module 200 and a toggle on/off circuit 100, wherein the specific structure of the toggle on/off circuit 100 refers to the above embodiments, and since the power circuit adopts all the technical solutions of all the above embodiments, all the beneficial effects brought by the technical solutions of the above embodiments are at least achieved, which is not repeated herein.
In this embodiment, the power module 200 supplies power to the subsequent functional module through the toggle on/off circuit 100, and in one embodiment, the power module 200 is a battery.
The utility model discloses the third aspect of embodiment provides an electronic equipment, and electronic equipment includes as above toggle switch machine circuit 100 or includes as above power supply circuit, and this toggle switch machine circuit 100 or power supply circuit's concrete structure refers to above-mentioned embodiment, because this electronic equipment has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is not repeated one by one here again, and in an embodiment, electronic equipment is the earphone.
The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. A toggle switch circuit is characterized by comprising a toggle switch, a first resistor, a second resistor, a first electronic switch tube, an energy storage capacitor and a control circuit;
the first end of the first resistor and the source electrode of the first electronic switching tube are connected together to form a power input end of the toggle switch circuit and used for being connected with a direct-current power supply, the drain electrode of the first electronic switch tube is the power output end of the toggle switch circuit, the first end of the first resistor, the first end of the second resistor, the first end of the energy storage capacitor, the grid electrode of the first electronic switch tube and the signal end of the control circuit are interconnected, the second end of the second resistor, the second end of the energy storage capacitor and the first end of the toggle switch are connected, the second end of the toggle switch is grounded, the first end and the second end of the toggle switch are communicated when the toggle switch is toggled along a first direction, when the toggle switch is toggled and reset along the direction opposite to the first direction, the first end and the second end of the toggle switch are disconnected;
the energy storage capacitor is used for charging when the first end and the second end of the toggle switch are connected and discharging when the first end and the second end of the toggle switch are disconnected;
the first electronic switch tube is used for being switched on when the first end and the second end of the toggle switch are communicated and being switched off when the first end and the second end of the toggle switch are disconnected;
the control circuit is used for outputting a low-level power-on signal to control the first electronic switching tube to be normally on after the first end and the second end of the toggle switch are connected, and outputting a high-level power-off signal to control the first electronic switching tube to be switched off according to a trigger signal;
wherein a resistance ratio of the first resistance to the second resistance is 1: n, wherein N is greater than or equal to 5 and less than or equal to 15;
and the product of the capacitance value of the energy storage capacitor and the resistance value of the second resistor is equal to a preset time constant.
2. The toggle switch circuit of claim 1, wherein the drain of the first electronic switch is further connected to a power supply terminal of the control circuit;
the control circuit is used for electrifying and working when the first electronic switching tube is switched on, outputting a low-level power-on signal to control the first electronic switching tube to be normally switched on, and outputting a high-level power-off signal to control the first electronic switching tube to be switched off according to a trigger signal.
3. The toggle switch circuit of claim 2, further comprising a voltage detection circuit, the voltage detection circuit being connected to a power input of the toggle switch circuit and the control circuit, respectively;
the voltage detection circuit is used for detecting the terminal voltage of the power supply input end of the toggle switch circuit and feeding back a voltage detection signal to the control circuit;
the control circuit is further used for outputting a high-level shutdown signal to control the first electronic switching tube to be turned off when the voltage of the voltage detection signal is smaller than a preset voltage.
4. The toggle switch circuit of claim 3, wherein the control circuit comprises a controller, a third resistor, a fourth resistor, a fifth resistor, a first capacitor, and a second electronic switch tube;
the signal end of the controller is connected with the first end of the third resistor, the second end of the third resistor, the first end of the fourth resistor, the first end of the first capacitor and the base of the second electronic switching tube are interconnected, the second end of the fourth resistor, the second end of the first capacitor and the emitting electrode of the second electronic switching tube are all grounded, the collector of the second electronic switching tube is connected with the first end of the fifth resistor, the second end of the fifth resistor is connected with the grid of the first electronic switching tube, and the controller is respectively electrically connected with the drain of the first electronic switching tube and the voltage detection circuit.
5. The toggle switch circuit of claim 4, further comprising a power conversion circuit, wherein an input terminal of the power conversion circuit is connected to the drain of the first electronic switch, and an output terminal of the power conversion circuit is connected to a power terminal of the controller to form a power output terminal of the toggle switch circuit;
the power supply conversion circuit is used for converting an input direct-current power supply into a voltage signal with a preset size.
6. The toggle switch circuit of claim 5, wherein the power conversion circuit includes a voltage regulator, and wherein the input and output of the voltage regulator are the input and output of the power conversion circuit, respectively.
7. A power circuit comprising a power module and a toggle switch circuit according to any one of claims 1 to 6.
8. The power supply circuit of claim 7, wherein the power supply module is a battery.
9. An electronic device comprising the toggle switch circuit according to any one of claims 1 to 6 or the power supply circuit according to any one of claims 7 or 8.
10. The electronic device of claim 9, wherein the electronic device is a headset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021554587.8U CN213152029U (en) | 2020-07-28 | 2020-07-28 | Toggle switching circuit, power supply circuit and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021554587.8U CN213152029U (en) | 2020-07-28 | 2020-07-28 | Toggle switching circuit, power supply circuit and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN213152029U true CN213152029U (en) | 2021-05-07 |
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| CN202021554587.8U Active CN213152029U (en) | 2020-07-28 | 2020-07-28 | Toggle switching circuit, power supply circuit and electronic equipment |
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| CN (1) | CN213152029U (en) |
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