CN214255816U - Low-power-consumption power supply circuit through instantaneous trigger - Google Patents

Low-power-consumption power supply circuit through instantaneous trigger Download PDF

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Publication number
CN214255816U
CN214255816U CN202022935788.9U CN202022935788U CN214255816U CN 214255816 U CN214255816 U CN 214255816U CN 202022935788 U CN202022935788 U CN 202022935788U CN 214255816 U CN214255816 U CN 214255816U
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China
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power supply
supply circuit
resistor
triode
control module
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CN202022935788.9U
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曾小林
周朝东
陈流敏
邬江南
张毅
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Dongguan Chenggong Electronic Equipment Co Ltd
Huizhou Jinli Variable Speed Industrial Development Co ltd
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Dongguan Chenggong Electronic Equipment Co ltd
Huizhou Jinli Intelligent Technology Co Ltd
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Priority to CN202022935788.9U priority Critical patent/CN214255816U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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Abstract

The utility model relates to the technical field of power management, in particular to a low-power-consumption power supply circuit through instantaneous triggering, which comprises a main control module, a first power supply circuit, a second power supply circuit and a touch control module; the first power supply circuit comprises a first switch module, a second switch module, a switch tube and a voltage conversion module; the touch control module is used for providing a trigger signal to the first switch module; the main control module is used for controlling the second switch module to work; the second power supply circuit is used for supplying power to the touch control module; the output end of the voltage conversion module respectively provides power for the touch control module and the main control module; and the output end of the voltage conversion module is used for controlling the second power supply circuit. The utility model discloses a set up host system, first supply circuit, second supply circuit and touch control module, when host system is in dormant state, second supply circuit only supplies power to touch control module to realize the low-power consumption.

Description

Low-power-consumption power supply circuit through instantaneous trigger
Technical Field
The utility model relates to a power management technical field, concretely relates to low-power consumption power supply circuit through instantaneous trigger.
Background
In a circuit with a single chip Microcomputer (MCU) as a control core, when an electric appliance is in a standby state, the MCU is always operated, and the consumption current of the MCU can generally reach a mA level. When the circuit requires very strict power consumption, that is, the current consumed by the single chip microcomputer reaches the uA level, a single chip microcomputer series with a low power consumption function is generally adopted, and the mode of realizing the low power consumption by the single chip microcomputer is as follows: when in standby, the singlechip oscillator is switched to a low-speed oscillator through program control so as to enter a low-power consumption mode; when the single-chip microcomputer enters the normal mode, the high-speed oscillator is switched to work, a specific control method and a specific I/O port are required to be used for waking up the single-chip microcomputer from the low-power-consumption mode to the normal work, and the use is troublesome. In addition, for many single-chip microcomputers which cannot realize a low-power-consumption mode or similar functions in use, a circuit needs to be redesigned to realize low power consumption, and the original circuit is greatly changed and is difficult to realize.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned not enough among the prior art, provide a low-power consumption supply circuit through instantaneous trigger.
The purpose of the utility model is realized through the following technical scheme: a low-power-consumption power supply circuit triggered instantaneously comprises a main control module, a first power supply circuit, a second power supply circuit and a touch control module;
the first power supply circuit comprises a first switch module, a second switch module, a switch tube and a voltage conversion module; the first switch module and the second switch module are respectively connected with the control end of the switch tube; the switch end of the switch tube is connected with the input end of the voltage conversion module;
the touch control module is used for providing a trigger signal to the first switch module; the main control module is used for controlling the second switch module to work;
the second power supply circuit is used for supplying power to the touch control module; the output end of the voltage conversion module respectively provides power for the touch control module and the main control module; and the output end of the voltage conversion module is used for controlling the on-off of the second power supply circuit.
The utility model is further arranged that the switch tube is a triode Q8; an emitter of the triode Q8 is externally connected with a power supply; the collector of the triode Q8 is connected with the input end of the voltage conversion module;
the power supply circuit with low power consumption triggered by the transient trigger further comprises a resistor R66 and a resistor R60; the first switch module and the second switch module are respectively connected with the base electrode of a triode Q8 through a resistor R66; the emitter of the transistor Q8 is connected with the base of the transistor Q8 through a resistor R60.
The utility model discloses it is further arranged that the first switch module includes triode Q12, resistor R71 and triode Q10;
the base electrode of the triode Q12 is connected with the touch control module; the emitter of the triode Q12 is grounded; the collector of the triode Q12 is respectively connected with the resistor R71 and the base of the triode Q10; the emission of the triode Q10 is grounded; the collector of the triode Q10 is connected with the base of the triode Q8 through a resistor R66.
The utility model discloses it is further arranged that the second switch module includes triode Q9, resistor R77, resistor R73 and triode Q11; the main control module is connected with the base electrode of a triode Q9 through a resistor R77; the emitter of the triode Q9 is connected with a power supply; the collector of the triode Q9 is connected with the base of the triode Q11 through a resistor R73; the emission of the triode Q11 is grounded; the collector of the triode Q11 is connected with the base of the triode Q8 through a resistor R66.
The utility model is further arranged that the voltage conversion module comprises a voltage reduction chip U2 and a voltage reduction chip U3; the input end of the voltage reduction chip U2 is connected with the switch end of the switch tube; the output end of the voltage reduction chip U2 is connected with the input end of the voltage reduction chip U3; the output end of the voltage reduction chip U3 is used for providing power for the touch control module and the main control module; and the output end of the voltage conversion module is used for controlling the on-off of the second power supply circuit.
The utility model is further arranged that the second power supply circuit comprises an input interface, a voltage reduction chip U1 and a USB output interface; the input interface is connected with the USB output interface through a voltage reduction chip U1; a power supply end of the touch control module is provided with a power supply interface; and the USB output interface is connected with the power interface.
The utility model is further arranged that the input end of the voltage reduction chip U1 is connected with the input interface; the second power supply circuit further comprises a resistor R1, an inductor L12, a capacitor C1, a resistor R3, a capacitor E1 and a capacitor C5; the output end of the voltage reduction chip U1 is connected with one end of a resistor R1; the other end of the resistor R1 is connected with a USB output interface; the other end of the resistor R1 is connected with the SW end of the buck chip U1 through an inductor L12; the other end of the resistor R1 is grounded through a capacitor E1 and a capacitor C5 respectively; the SW end of the voltage reduction chip U1 is grounded through a capacitor C1 and a resistor R3 in sequence;
the second power supply circuit further comprises a transient voltage suppression diode TVS 2; the other end of the resistor R1 is connected to ground through a transient voltage suppression diode TVS 2.
The utility model is further provided with an enabling end arranged on the voltage reduction chip U1; the second power supply circuit further comprises a resistor R6 and a diode D2; the output end of the buck chip U3 is connected with the enable end of the buck chip U1 after passing through the resistor R6 and the diode D2 in sequence.
The utility model is further arranged that a diode D10 is arranged between the power supply interface and the power supply end of the touch control module; and a diode D8 is arranged between the output end of the voltage reduction chip U3 and the power supply end of the touch control module.
The utility model has the advantages that: the utility model discloses a set up host system, first supply circuit, second supply circuit and touch control module, when host system is in dormant state, second supply circuit only supplies power to touch control module to realize the low-power consumption.
Drawings
The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.
Fig. 1 is a circuit diagram of a first power supply circuit of the present invention;
fig. 2 is a circuit diagram of a second power supply circuit of the present invention;
fig. 3 is a circuit diagram of the touch control module of the present invention;
fig. 4 is a circuit diagram of the main control module of the present invention;
wherein: 1. an input interface; 2. a USB output interface; 3. and a power interface.
Detailed Description
The invention will be further described with reference to the following examples.
As can be seen from fig. 1 to 4, the power supply circuit with low power consumption triggered instantaneously according to the present embodiment includes a main control module, a first power supply circuit, a second power supply circuit, and a touch control module; the model of the main control module is MS51TC0AE, and the model of the touch control module is SC 09A.
The first power supply circuit comprises a first switch module, a second switch module, a switch tube and a voltage conversion module; the first switch module and the second switch module are respectively connected with the control end of the switch tube; the switch end of the switch tube is connected with the input end of the voltage conversion module;
the touch control module is used for providing a trigger signal to the first switch module; the main control module is used for controlling the second switch module to work;
the second power supply circuit is used for supplying power to the touch control module; the output end of the voltage conversion module respectively provides power for the touch control module and the main control module; and the output end of the voltage conversion module is used for controlling the on-off of the second power supply circuit.
Specifically, in the low-power-consumption power supply circuit triggered instantaneously in this embodiment, in a sleep state, the first switch module and the second switch module are simultaneously turned off, so that the switch tube is also turned off, and thus the input end of the voltage conversion module is disconnected from an external power supply, and at this time, the first power supply circuit does not provide a power supply for the main control module and the touch control module; at the moment, the second power supply circuit is externally connected with a low-voltage power supply, so that the power supply is provided for the touch control module, and the whole low-power-consumption power supply circuit which is triggered instantaneously is in a low-power-consumption state due to the fact that the power consumption of the touch control module is low and the main control module cannot obtain the voltage to enter the dormancy state, so that the electric quantity is saved;
when the main control module needs to be awakened, the touch control module provides a trigger signal to the first switch module by touching the touch control module, namely, an instantaneous high level or low level is provided to the first switch module, so that the first switch module is conducted, the switch tube is conducted, the input end of the voltage conversion module is connected with an external power supply, the voltage conversion module outputs the power supply to the touch control module and the main control module, meanwhile, the voltage conversion module outputs the power supply to the second power supply circuit, the second power supply circuit stops working, the main control module is awakened to provide the high level or the low level so that the second switch module is always conducted, the switch tube is kept conducted, and at the moment, the whole circuit can normally work;
when the low-power-consumption state needs to be entered again, the voltage conversion module can stop outputting the power supply only by controlling the first switch module to be disconnected through the main control module, the main control module is in a power-off state and enters a dormant state, the second power supply circuit can output the power supply to the touch control module again at the moment, the touch control module enters the low-power-consumption state, and the touch control module is waited for awakening again through the trigger signal of the touch control module next time.
In the low-power-consumption power supply circuit triggered instantaneously according to this embodiment, the switching tube is a transistor Q8; an emitter of the triode Q8 is externally connected with a power supply; the collector of the triode Q8 is connected with the input end of the voltage conversion module;
the power supply circuit with low power consumption triggered by the transient trigger further comprises a resistor R66 and a resistor R60; the first switch module and the second switch module are respectively connected with the base electrode of a triode Q8 through a resistor R66; the emitter of the transistor Q8 is connected with the base of the transistor Q8 through a resistor R60. The transistor Q8 is a PNP transistor.
Specifically, when the first switch module and the second switch module are both turned off, the emitter and the collector of the transistor Q8 are disconnected, so that the input end of the voltage conversion module is disconnected from the external power supply; when the first switch module or the second switch module is conducted, the emitter and the collector of the triode Q8 are conducted, so that an external power supply can enter the voltage conversion module for conversion after passing through the emitter and the collector of the triode Q8, and then the power supply is provided for the touch control module and the main control module.
In the low power consumption power supply circuit with instant trigger according to this embodiment, the first switching module includes a transistor Q12, a resistor R71, and a transistor Q10;
the base electrode of the triode Q12 is connected with the touch control module; the emitter of the triode Q12 is grounded; the collector of the triode Q12 is respectively connected with the resistor R71 and the base of the triode Q10; the emission of the triode Q10 is grounded; the collector of the triode Q10 is connected with the base of the triode Q8 through a resistor R66.
Specifically, triode Q10 and triode Q12 are NPN triodes, and when the main control module needs to be awakened, the wake _ UP end of the touch control module outputs an instantaneous high level, so that triode Q12 is conducted, so that triode Q10 is conducted, that is, the voltage on resistor R66 is reduced, so that the base current of triode Q8 is reduced, and the emitter and the collector of triode Q8 are conducted.
In the low power consumption power supply circuit with instant trigger according to this embodiment, the second switching module includes a transistor Q9, a resistor R77, a resistor R73, and a transistor Q11; the main control module is connected with the base electrode of a triode Q9 through a resistor R77; the emitter of the triode Q9 is connected with a power supply; the collector of the triode Q9 is connected with the base of the triode Q11 through a resistor R73; the emission of the triode Q11 is grounded; the collector of the triode Q11 is connected with the base of the triode Q8 through a resistor R66.
Specifically, triode Q11 and triode Q9 are NPN triode, and when the instantaneous high level of emitter and the collecting electrode of triode Q8 because the touch control module switched on, the master control module obtained the voltage and exported the high level always at USB _ EN end to make triode Q9 switch on, thereby make triode Q11 switch on, even make the voltage on the resistance R66 reduce, thereby make triode Q8's base current reduce, so that triode Q8's emitter keeps conducting with the collecting electrode.
In the low power consumption power supply circuit with instant trigger of this embodiment, the voltage conversion module includes a buck chip U2 and a buck chip U3; the input end of the voltage reduction chip U2 is connected with the switch end of the switch tube; the output end of the voltage reduction chip U2 is connected with the input end of the voltage reduction chip U3; the output end of the voltage reduction chip U3 is used for providing power for the touch control module and the main control module; and the output end of the voltage conversion module is used for controlling the on-off of the second power supply circuit.
The buck chip U2 is used for reducing the external power supply to 12V, and the buck chip U3 is used for reducing the voltage of 12V to 5V. The model of the antihypertensive chip U2 is XL1509-ADJ, TD1509PR or AP1509-ADJM/TR, and the model of the antihypertensive chip U3 is LD1117S33TR, LD1117-3.3, KIA1117-3.3, AMS1117-3.3, REG1117-3.3, SC11173.3V or SSP 1117-3.3V.
In the low-power-consumption power supply circuit triggered instantaneously according to this embodiment, the second power supply circuit includes an input interface 1, a voltage-reducing chip U1, and a USB output interface 2; the input interface 1 is connected with the USB output interface 2 through a voltage reduction chip U1; a power supply end of the touch control module is provided with a power supply interface 3; the USB output interface 2 is connected with the power interface 3. The model of the voltage reduction chip U1 is SP6816, IP6505/T, IP6525 or IP 6510.
In the low-power-consumption power supply circuit triggered instantaneously according to this embodiment, the input end of the voltage-reducing chip U1 is connected to the input interface 1; the second power supply circuit further comprises a resistor R1, an inductor L12, a capacitor C1, a resistor R3, a capacitor E1 and a capacitor C5; the output end of the voltage reduction chip U1 is connected with one end of a resistor R1; the other end of the resistor R1 is connected with the USB output interface 2; the other end of the resistor R1 is connected with the SW end of the buck chip U1 through an inductor L12; the other end of the resistor R1 is grounded through a capacitor E1 and a capacitor C5 respectively; the SW end of the voltage reduction chip U1 is grounded through a capacitor C1 and a resistor R3 in sequence; firstly, a 12V power supply is connected with an input end of a voltage reduction chip U1, the voltage reduction chip U1 reduces the voltage of the 12V power supply to a 5V power supply, then the USB output interface 2 supplies power, and a resistor R1, an inductor L12, a capacitor C1, a resistor R3, a capacitor E1 and a capacitor C5 play roles in filtering and rectifying.
The second power supply circuit further comprises a transient voltage suppression diode TVS 2; the other end of the resistor R1 is connected to ground through a transient voltage suppression diode TVS 2. Transient voltages can be suppressed by the above arrangement.
In the low-power-consumption power supply circuit triggered instantaneously according to this embodiment, the voltage-reducing chip U1 is provided with an enable terminal; the second power supply circuit further comprises a resistor R6 and a diode D2; the output end of the buck chip U3 is connected with the enable end of the buck chip U1 after passing through the resistor R6 and the diode D2 in sequence.
Through the arrangement, when the first power supply circuit supplies power, the voltage conversion module outputs voltage to the enabling end of the voltage reduction chip U1, so that the voltage reduction chip U1 stops working, and the second power supply circuit stops supplying power to the touch control module.
In the low-power-consumption power supply circuit triggered instantaneously according to this embodiment, a diode D10 is disposed between the power interface 3 and a power end of the touch control module; and a diode D8 is arranged between the output end of the voltage reduction chip U3 and the power supply end of the touch control module. The diode D10 prevents the power supply of the first power supply circuit from entering the second power supply circuit, and the diode D8 prevents the power supply of the second power supply circuit from entering the first power supply circuit.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (9)

1. A low power consumption power supply circuit by instant triggering, characterized by: the touch control circuit comprises a main control module, a first power supply circuit, a second power supply circuit and a touch control module;
the first power supply circuit comprises a first switch module, a second switch module, a switch tube and a voltage conversion module; the first switch module and the second switch module are respectively connected with the control end of the switch tube; the switch end of the switch tube is connected with the input end of the voltage conversion module;
the touch control module is used for providing a trigger signal to the first switch module; the main control module is used for controlling the second switch module to work;
the second power supply circuit is used for supplying power to the touch control module; the output end of the voltage conversion module respectively provides power for the touch control module and the main control module; and the output end of the voltage conversion module is used for controlling the on-off of the second power supply circuit.
2. A power supply circuit with low power consumption through instantaneous triggering according to claim 1, characterized in that: the switching tube is a triode Q8; an emitter of the triode Q8 is externally connected with a power supply; the collector of the triode Q8 is connected with the input end of the voltage conversion module;
the power supply circuit with low power consumption triggered by the transient trigger further comprises a resistor R66 and a resistor R60; the first switch module and the second switch module are respectively connected with the base electrode of a triode Q8 through a resistor R66; the emitter of the transistor Q8 is connected with the base of the transistor Q8 through a resistor R60.
3. A power supply circuit with low power consumption through instantaneous triggering according to claim 2, characterized in that: the first switch module comprises a transistor Q12, a resistor R71 and a transistor Q10;
the base electrode of the triode Q12 is connected with the touch control module; the emitter of the triode Q12 is grounded; the collector of the triode Q12 is respectively connected with the resistor R71 and the base of the triode Q10; the emission of the triode Q10 is grounded; the collector of the triode Q10 is connected with the base of the triode Q8 through a resistor R66.
4. A power supply circuit with low power consumption through instantaneous triggering according to claim 2, characterized in that: the second switch module comprises a transistor Q9, a resistor R77, a resistor R73 and a transistor Q11; the main control module is connected with the base electrode of a triode Q9 through a resistor R77; the emitter of the triode Q9 is connected with a power supply; the collector of the triode Q9 is connected with the base of the triode Q11 through a resistor R73; the emission of the triode Q11 is grounded; the collector of the triode Q11 is connected with the base of the triode Q8 through a resistor R66.
5. A power supply circuit with low power consumption through instantaneous triggering according to claim 1, characterized in that: the voltage conversion module comprises a buck chip U2 and a buck chip U3; the input end of the voltage reduction chip U2 is connected with the switch end of the switch tube; the output end of the voltage reduction chip U2 is connected with the input end of the voltage reduction chip U3; the output end of the voltage reduction chip U3 is used for providing power for the touch control module and the main control module; and the output end of the voltage conversion module is used for controlling the on-off of the second power supply circuit.
6. A power supply circuit with low power consumption through instantaneous triggering according to claim 5, characterized in that: the second power supply circuit comprises an input interface (1), a voltage reduction chip U1 and a USB output interface (2); the input interface (1) is connected with the USB output interface (2) through a voltage reduction chip U1; a power supply end of the touch control module is provided with a power supply interface (3); and the USB output interface (2) is connected with the power interface (3).
7. A power supply circuit with low power consumption through instantaneous triggering according to claim 6, characterized in that: the input end of the voltage reduction chip U1 is connected with an input interface (1); the second power supply circuit further comprises a resistor R1, an inductor L12, a capacitor C1, a resistor R3, a capacitor E1 and a capacitor C5; the output end of the voltage reduction chip U1 is connected with one end of a resistor R1; the other end of the resistor R1 is connected with a USB output interface (2); the other end of the resistor R1 is connected with the SW end of the buck chip U1 through an inductor L12; the other end of the resistor R1 is grounded through a capacitor E1 and a capacitor C5 respectively; the SW end of the voltage reduction chip U1 is grounded through a capacitor C1 and a resistor R3 in sequence;
the second power supply circuit further comprises a transient voltage suppression diode TVS 2; the other end of the resistor R1 is connected to ground through a transient voltage suppression diode TVS 2.
8. A power supply circuit with low power consumption through instantaneous triggering according to claim 6, characterized in that: the voltage reduction chip U1 is provided with an enabling end; the second power supply circuit further comprises a resistor R6 and a diode D2; the output end of the buck chip U3 is connected with the enable end of the buck chip U1 after passing through the resistor R6 and the diode D2 in sequence.
9. A power supply circuit with low power consumption through instantaneous triggering according to claim 6, characterized in that: a diode D10 is arranged between the power interface (3) and a power end of the touch control module; and a diode D8 is arranged between the output end of the voltage reduction chip U3 and the power supply end of the touch control module.
CN202022935788.9U 2020-12-10 2020-12-10 Low-power-consumption power supply circuit through instantaneous trigger Active CN214255816U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022935788.9U CN214255816U (en) 2020-12-10 2020-12-10 Low-power-consumption power supply circuit through instantaneous trigger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022935788.9U CN214255816U (en) 2020-12-10 2020-12-10 Low-power-consumption power supply circuit through instantaneous trigger

Publications (1)

Publication Number Publication Date
CN214255816U true CN214255816U (en) 2021-09-21

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Address after: 516000 Huidong industrial transfer park, Daling Town, Huidong County, Huizhou City, Guangdong Province

Patentee after: Huizhou Jinli variable speed Industrial Development Co.,Ltd.

Patentee after: Dongguan Chenggong Electronic Equipment Co., Ltd

Address before: 516300 Huidong industrial transfer park, Daling Town, Huidong County, Huizhou City, Guangdong Province

Patentee before: Huizhou Jinli Intelligent Technology Co.,Ltd.

Patentee before: Dongguan Chenggong Electronic Equipment Co., Ltd

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