CN215185914U - Standby zero-power-consumption circuit applied to battery power supply equipment - Google Patents
Standby zero-power-consumption circuit applied to battery power supply equipment Download PDFInfo
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- CN215185914U CN215185914U CN202120596432.9U CN202120596432U CN215185914U CN 215185914 U CN215185914 U CN 215185914U CN 202120596432 U CN202120596432 U CN 202120596432U CN 215185914 U CN215185914 U CN 215185914U
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Abstract
The utility model discloses an use standby zero-power consumption circuit in battery power supply unit, including MCU module and system's working circuit, control switch circuit and signal trigger circuit. The MCU module and the system working circuit are core circuits in the battery-powered equipment, an I/O port of the MCU module is connected with the control switch circuit and the signal trigger circuit, and the MCU module controls all the circuits. The utility model provides an use the standby zero-power consumption circuit in battery powered equipment, the battery in the equipment is in the zero-power consumption state when realizing the standby.
Description
Technical Field
The utility model relates to an use standby zero-power consumption circuit in battery power supply unit.
Background
Currently, in devices that include a battery for power, the power of the battery is consumed even when the device is in a standby state, because the power of the battery is limited. Some batteries can be recharged by an external adapter, but some batteries are disposable batteries which cannot be recharged, and even rechargeable batteries, the service life of the batteries is affected when the number of recharging times is large. Therefore, it is very important to reduce the standby power consumption of the whole device when the device is in standby.
Disclosure of Invention
The utility model aims to solve the technical problem that, overcome prior art not enough, provide an use standby zero-power consumption circuit in battery power supply unit, battery in the equipment is in zero-power consumption state when realizing the standby.
In order to solve the technical problem, the technical scheme of the utility model is that:
a standby zero power circuit for use in a battery powered device, comprising:
the MCU module and the system working circuit;
the control switch circuit is controlled by the MCU module to supply power to the MCU module and the system working circuit, the control switch circuit comprises an MOS tube Q1 and an MOS tube Q2, the G pole of the MOS tube Q1 is connected with the D pole of the MOS tube Q2, and the D pole of the MOS tube Q1 is connected with the power supply port of the MCU module;
and the signal trigger circuit is used for sending a starting or shutdown signal to the MCU module.
And furthermore, the battery terminal is included, the cathode of the battery terminal is connected with the MCU module and the GND of the system working circuit, and the anode of the battery terminal supplies power to the MCU module and the system working circuit through the MOS tube Q1.
And the external power supply trigger circuit is respectively connected with an I/O port of the MCU module and a G electrode of the MOS tube Q2, and when the MCU module and the system working circuit supply power by an external power supply or charge a battery, the MOS tube Q1 can be triggered to work.
Further, the signal trigger circuit comprises a key switch SW1 and a common-negative double diode D1, one end of the key switch SW1 is grounded, the other end of the key switch SW1 is connected with the negative electrode of the common-negative double diode D1, the first positive electrode of the double diode D1 is connected with the G electrode of the MOS tube Q1, and the second positive electrode of the common-negative double diode D1 is connected with the I/O port of the MCU module.
Further, the external power supply trigger circuit comprises a power socket, a diode D2 and a resistor R2, the power socket is electrically connected with the anode of the diode D2, the cathode of the diode D2 is connected with one end of the resistor R2, the other end of the resistor R2 is respectively connected with the I/O port of the MCU module and the G pole of the MOS transistor Q2, the S pole of the MOS transistor Q2 is grounded, a capacitor C2, a voltage regulator D3 and a resistor R3 are connected in parallel between the resistor R2 and the G pole of the MOS transistor, and the other ends of the capacitor C2, the voltage regulator D3 and the resistor R3 are grounded.
According to the technical scheme, the utility model discloses a signal trigger circuit sends the switching on and shutting down signal for the MCU module, is controlled by the MCU module to the on off state of two MOS pipes in the control switch circuit, and the battery does not supply power for equipment when making the standby to when realizing the equipment standby, make the battery realize zero-power consumption, the circuit is simple and practical, low cost.
Drawings
Fig. 1 is a schematic circuit diagram of a standby zero power consumption circuit applied in a battery-powered device.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
As shown in fig. 1, a standby zero-power circuit applied to a battery-powered device includes an MCU module, a system operating circuit, a control switch circuit, and a signal trigger circuit.
As shown in fig. 1, the MCU module and the system operating circuit are core circuits in a battery-powered device, an I/O port of the MCU module is connected to the control switch circuit and the signal trigger circuit, and the MCU module controls each circuit.
As shown in fig. 1, the control switch circuit is controlled by the MCU module to switch on and off the power supply to the MCU module and the system working circuit, and includes a MOS transistor Q1 and a MOS transistor Q2, the G pole of the MOS transistor Q1 is connected to the D pole of the MOS transistor Q2, and the D pole of the MOS transistor Q1 is connected to the power port of the MCU module. The MOS tube is used as a switch, the MCU module controls the conduction and the closing of the MOS tube, and the MOS tube controls the power supply on-off of the MCU module and a system working circuit.
As shown in fig. 1, the signal trigger circuit is configured to send a power-on or power-off signal to the MCU module, and the signal trigger circuit includes a key switch SW1 and a common-negative bipolar diode D1. The common-negative electrode double diode D1 is formed by packaging two diodes together, the cathodes of the two diodes are connected together, and the common-negative electrode double diode D1 plays a role in isolating voltage. One end of the key switch SW1 is grounded, the other end of the key switch SW1 is connected with the cathode of the dual diode D1, the first anode of the dual diode D1 is connected with the G pole of the MOS tube Q1, and the second anode of the dual diode D1 is connected with the I/O port of the MCU module.
When the computer is started: when the key switch SW1 is pressed down, the G pole of the MOS transistor Q1 obtains a driving voltage, the MOS transistor Q1 works, the MCU module and the system working circuit are electrified to work, whether the trigger key is pressed down or the external power supply is input at present is judged through the MCU module, after the input is confirmed, the MCU module outputs a control signal POW _ CTRL, the MOS transistor Q2 works, the working state of the MOS transistor Q1 is latched, and the MCU module and the system working circuit enter a normal working state.
When the device is shut down: when the key switch SW1 is pressed again, after the MCU module receives the confirmation signal, the control signal POW _ CTRL of the MOS transistor Q2 is turned off or pulled down, and then the output of the MOS transistor Q1 is turned off, so that the device is turned off, and the device enters a zero power consumption standby state. At this moment, the battery can not supply power to the equipment, and only when the equipment is started next time, the key switch SW1 is pressed again, the MOS tube Q1 is turned on, and the battery can supply power to the equipment again, so that zero-power-consumption standby is realized.
As shown in fig. 1, the battery power supply apparatus of this embodiment includes a battery terminal CN2, one end of the battery terminal CN2 is electrically connected to the battery, the other end of the battery terminal CN2 is electrically connected to the S pole and the G pole of the MOS transistor Q1, respectively, and a current limiting resistor R1 is connected in series between the battery terminal CN2 and the G pole of the MOS transistor Q1. Through battery binding post CN2 and battery connection, conveniently change the battery.
As shown in fig. 1, the battery power supply device of this embodiment further includes an external power supply trigger circuit for supplying external power to the MCU module and the system operating circuit, and the device may not only be supplied with power by a battery, but also be supplied with power by an external power adapter. The external power supply trigger circuit comprises a power socket CN1, a diode D2 and a resistor R2, wherein the power socket CN1 is electrically connected with the anode of the diode D2, the cathode of the diode D2 is connected with one end of a resistor R2, the other end of the resistor R2 is respectively connected with an I/O port of the MCU module and the G pole of the MOS tube Q2, the S pole of the MOS tube Q2 is grounded, a capacitor C2, a voltage regulator tube D3 and a resistor R3 are connected between the resistor R2 and the G pole of the MOS tube in parallel, and the other ends of the capacitor C2, the voltage regulator tube D3 and the resistor R3 are all grounded.
The above-mentioned embodiments further explain in detail the technical problems, technical solutions and advantages solved by the present invention, and it should be understood that the above only is a specific embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A standby zero power circuit for use in a battery-powered device, comprising:
the MCU module and the system working circuit;
the control switch circuit is controlled by the MCU module to supply power to the MCU module and the system working circuit, the control switch circuit comprises an MOS tube Q1 and an MOS tube Q2, the G pole of the MOS tube Q1 is connected with the D pole of the MOS tube Q2, and the D pole of the MOS tube Q1 is connected with the power supply port of the MCU module;
and the signal trigger circuit is used for sending a starting or shutdown signal to the MCU module.
2. The standby zero-power circuit applied to the battery-powered device according to claim 1, wherein: the battery terminal comprises a battery terminal, wherein the cathode of the battery terminal is connected with the MCU module and the GND of the system working circuit, and the anode of the battery terminal supplies power to the MCU module and the system working circuit through an MOS tube Q1.
3. The standby zero-power circuit applied to the battery-powered device according to claim 1, wherein: the intelligent power supply system further comprises an external power supply trigger circuit, the external power supply trigger circuit is respectively connected with an I/O port of the MCU module and a G pole of the MOS tube Q2, and when the MCU module and the system working circuit supply power to an external power supply or charge a battery, the MCU module and the system working circuit can trigger the MOS tube Q1 to work.
4. The standby zero-power circuit applied to the battery-powered device according to claim 1, wherein: the signal trigger circuit comprises a key switch SW1 and a common-negative double diode D1, one end of the key switch SW1 is grounded, the other end of the key switch SW1 is connected with the negative electrode of the common-negative double diode D1, the first positive electrode of the common-negative double diode D1 is connected with the G electrode of an MOS tube Q1, and the second positive electrode of the common-negative double diode D1 is connected with an I/O port of the MCU module.
5. A standby zero power consumption circuit for use in a battery powered device according to claim 3, wherein: the external power supply trigger circuit comprises a power socket, a diode D2 and a resistor R2, wherein the power socket is electrically connected with the anode of a diode D2, the cathode of the diode D2 is connected with one end of a resistor R2, the other end of the resistor R2 is respectively connected with an I/O port of an MCU module and the G pole of an MOS tube Q2, the S pole of the MOS tube Q2 is grounded, a capacitor C2, a voltage stabilizing tube D3 and a resistor R3 are connected between the resistor R2 and the G pole of the MOS tube in parallel, and the other ends of the capacitor C2, the voltage stabilizing tube D3 and the resistor R3 are all grounded.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120596432.9U CN215185914U (en) | 2021-03-24 | 2021-03-24 | Standby zero-power-consumption circuit applied to battery power supply equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120596432.9U CN215185914U (en) | 2021-03-24 | 2021-03-24 | Standby zero-power-consumption circuit applied to battery power supply equipment |
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| CN215185914U true CN215185914U (en) | 2021-12-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759910A (en) * | 2022-04-06 | 2022-07-15 | 中山市科卓尔电器有限公司 | Electronic switch circuit for standby low-power-consumption control of variable-frequency blower |
| CN119727027A (en) * | 2024-12-20 | 2025-03-28 | 佛山市顺德区凯祥电器有限公司 | A standby control circuit and control method for an electrical appliance with a battery charging function |
-
2021
- 2021-03-24 CN CN202120596432.9U patent/CN215185914U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114759910A (en) * | 2022-04-06 | 2022-07-15 | 中山市科卓尔电器有限公司 | Electronic switch circuit for standby low-power-consumption control of variable-frequency blower |
| CN119727027A (en) * | 2024-12-20 | 2025-03-28 | 佛山市顺德区凯祥电器有限公司 | A standby control circuit and control method for an electrical appliance with a battery charging function |
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