CN203691363U - Three-end switch-based low-power-consumption wake-up circuit - Google Patents

Three-end switch-based low-power-consumption wake-up circuit Download PDF

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Publication number
CN203691363U
CN203691363U CN201420009573.6U CN201420009573U CN203691363U CN 203691363 U CN203691363 U CN 203691363U CN 201420009573 U CN201420009573 U CN 201420009573U CN 203691363 U CN203691363 U CN 203691363U
Authority
CN
China
Prior art keywords
switch
pin
terminal switch
power supply
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420009573.6U
Other languages
Chinese (zh)
Inventor
张峰
白龙
律鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIAONING WONTEL TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
LIAONING WONTEL TECHNOLOGY DEVELOPMENT Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LIAONING WONTEL TECHNOLOGY DEVELOPMENT Co Ltd filed Critical LIAONING WONTEL TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201420009573.6U priority Critical patent/CN203691363U/en
Application granted granted Critical
Publication of CN203691363U publication Critical patent/CN203691363U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a three-end switch-based low-power-consumption wake-up circuit, comprising a three-end switch, a capacitor, and a resistor. One end of the capacitor is connected with a negative end while the other end of the capacitor is connected with a first pin of the three-end switch. One end of the resistor is connected with the negative end while the other end of the resistor is connected with a third pin of the three-end switch and a controlled circuit switch enablement end. A second pin of the three-end switch is connected with a positive end of a power supply. According to the utility model, the wake-up circuit can be realized simply by one three-end switch, one capacitor, and one resistor, thereby being lower in cost and simpler in enforcement and providing a power supply wake-up function with less power consumption.

Description

A kind of low-power consumption wake-up circuit based on three-terminal switch
Technical field
The utility model relates to a kind of wake-up circuit, specifically a kind of low-power consumption wake-up circuit based on three-terminal switch.
Background technology
In existing battery power supply system, wake-up circuit comprises that switch wakes up, button wakes up with transducer and wakes up, while using transducer to wake up as power supply, the electric current consuming during due to working sensor can reduce overall stand-by time, and the stand-by power consumption of switch and button wake-up mode is minimum, if but button after being pressed, do not upspring or start after conducting not disconnection and can cause system cannot enter holding state.In order reasonably to control conducting and the cut-off of power supply, design this circuit.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of wake-up circuit of more low-power consumption.
The technical scheme that the utility model adopted is for achieving the above object:
Utilize the charge and discharge state of three-terminal switch switch capacitor, the electric weight during by capacitor discharge drives the switch enable end of controlled circuit, thereby controls the on off state of controlled circuit.
Based on above technical scheme, the beneficial effects of the utility model and advantage:
1. the utility model enforcement is simpler, only can realize by a three-terminal switch, a capacitor and a resistor.
2. the utility model cost is lower.
3. the utility model can provide the power supply arousal function of more low-power consumption.
Brief description of the drawings
Fig. 1 is embodiment 1 circuit connection diagram of the present utility model;
Fig. 2 is embodiment 2 circuit connection diagrams of the present utility model.
Wherein, 1 is three-terminal switch, and 2 is controller, and 3 is capacitor, and 4 is power supply, and 5 is field effect transistor, and 6 is resistor, and 7 is power supply chip.
Embodiment
Below in conjunction with drawings and Examples, this patent is described further.
Low-power consumption wake-up circuit is made up of capacitor 3, three-terminal switch 1 and resistor 6, capacitor 3 one end connect the negative pole end of power supply, capacitor 3 other ends are connected with the first pin of three-terminal switch 1, the second pin of three-terminal switch 1 is connected with the positive terminal of power supply, resistor 6 one end connect the negative pole end of power supply, the other end connects the 3rd pin of three-terminal switch 1, connects controlled circuit Enable Pin simultaneously.
In the time of the first pin of three-terminal switch 1 and the second pin conducting, power supply is capacitor charging via three-terminal switch 1, after capacitor 3 is full of, no longer includes current drain.In the time of the first pin of three-terminal switch 1 and the 3rd pin conducting, electric energy in capacitor 3 is the power supply of controlled circuit Enable Pin by three-terminal switch 1, discharge for capacitor 3 by resistor 6 simultaneously, by selecting the capacitance of capacitor 3 and the resistance value of resistor 6, near and provide the power supply of fixed time for controlled circuit.
Described three-terminal switch 1 is gravity control switch or soft-touch control.
Provide the power supply of certain hour by switching ground three pins that the switch direction of three-terminal switch 1 makes three-terminal switch for controlled circuit.
Embodiment 1 as shown in Figure 1, controlled circuit uses N channel field-effect pipe 5 as power control switch, wherein grid G connects 3 pin of three-terminal switch, source S contact resistance device 6, drain D connects controller 2, the I/O interface of controller connects 3 pin of three-terminal switch, and the other end of controller 2 connects the positive terminal of power supply 4.When capacitor 3 is given the G utmost point (grid) power supply of field effect transistor by three-terminal switch 1, the field effect transistor D utmost point (drain electrode) and the S utmost point (source electrode) conducting, for controller 2 is powered, after controller 2 work, can the field effect transistor G utmost point (grid) be drawn high and keep power supply always in conducting state by I/O interface, in the time that needs disconnect power supply, the I/O interface cancellation of controller 2 is drawn high, in the time of the first pin of three-terminal switch 1 and the second pin conducting, field effect transistor 5 is cut-off at once, in the time of the first pin of three-terminal switch 1 and the 3rd pin conducting, field effect transistor 5 meetings power cutoff in the time that electric capacity electrical equipment drops to its cut-ff voltage by resistance step-down.
As shown in Figure 2, controlled circuit uses the power supply chip 7 with all-round pin, V in figure to embodiment 2 dDfor power input, GND is for publicly, V oUTfor the power output end of power supply chip, the enable pin V of power supply chip 7 eNpin connects the 3rd pin of three-terminal switch 1, and the output of power supply chip 7 connects controller 2, and the I/O interface of controller 2 connects the 3rd pin of three-terminal switch 1.Capacitor 3 is given power supply chip 7 enable pin V by three-terminal switch 1 eNpin power supply, power supply chip 7 conductings are that controller 2 is powered, can be by I/O interface by power supply chip V after controller 2 work eNpin is drawn high, keep power supply always in conducting state, in the time that needs disconnect power supply, the I/O interface cancellation of controller 2 is drawn high, power supply chip 7 cut-off at once in the time of the first pin of three-terminal switch and the second pin conducting, in the time of three-terminal switch the first pin and the 3rd pin conducting, power supply chip 7 meetings power cutoff in the time that electric capacity electrical equipment drops to its cut-ff voltage by resistance step-down.

Claims (3)

1. the low-power consumption wake-up circuit based on three-terminal switch, is characterized in that, comprises three-terminal switch (1), capacitor (3) and resistor (6), and described capacitor (3) one end connects negative pole end, and the other end is connected with the first pin of three-terminal switch (1); Described resistor (6) one end connects negative pole end, and the other end connects the 3rd pin of three-terminal switch (1), connects controlled circuit switch enable end simultaneously; The second pin of described three-terminal switch (1) connects power supply positive electricity end.
2. the low-power consumption wake-up circuit based on three-terminal switch according to claim 1, is characterized in that: described three-terminal switch (1) is gravity control switch or soft-touch control.
3. the low-power consumption wake-up circuit based on three-terminal switch according to claim 1, is characterized in that: described controlled circuit switch enable end is made up of field effect transistor (5) and controller (2) or is made up of power supply chip (7) and controller (2).
CN201420009573.6U 2014-01-06 2014-01-06 Three-end switch-based low-power-consumption wake-up circuit Expired - Fee Related CN203691363U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420009573.6U CN203691363U (en) 2014-01-06 2014-01-06 Three-end switch-based low-power-consumption wake-up circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420009573.6U CN203691363U (en) 2014-01-06 2014-01-06 Three-end switch-based low-power-consumption wake-up circuit

Publications (1)

Publication Number Publication Date
CN203691363U true CN203691363U (en) 2014-07-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420009573.6U Expired - Fee Related CN203691363U (en) 2014-01-06 2014-01-06 Three-end switch-based low-power-consumption wake-up circuit

Country Status (1)

Country Link
CN (1) CN203691363U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108832919A (en) * 2018-06-21 2018-11-16 东莞新科技术研究开发有限公司深圳分公司 Low-power consumption time switch method, apparatus and electronic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108832919A (en) * 2018-06-21 2018-11-16 东莞新科技术研究开发有限公司深圳分公司 Low-power consumption time switch method, apparatus and electronic equipment

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: SHENYANG WANTAI TECHNOLOGY DEVELOPMENT CO., LTD.

Free format text: FORMER NAME: LIAONING WANTAI TECHNOLOGY DEVELOPMENT CO., LTD.

CP03 Change of name, title or address

Address after: 110014, 863-11, deep groove village, Dongling District, Liaoning, Shenyang

Patentee after: Shenyang Wantai Technology Development Co. Ltd.

Address before: Shenzhou road Shenhe District of Shenyang City, Liaoning Province, No. 99 building, 110014 Tai A404

Patentee before: LIAONING WONTEL TECHNOLOGY DEVELOPMENT CO., LTD.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140702

Termination date: 20150106

EXPY Termination of patent right or utility model