CN203812024U - Microamp-level standby-current electronic switch for battery power supply - Google Patents
Microamp-level standby-current electronic switch for battery power supply Download PDFInfo
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- CN203812024U CN203812024U CN201320755398.0U CN201320755398U CN203812024U CN 203812024 U CN203812024 U CN 203812024U CN 201320755398 U CN201320755398 U CN 201320755398U CN 203812024 U CN203812024 U CN 203812024U
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- electronic switch
- chip microcomputer
- switch
- diode
- battery
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Abstract
The utility model proposes a microamp-level standby-current electronic switch for battery power supply, and the electronic switch can effectively prolongs the standby time of equipment. The electronic switch comprises a single-chip microcomputer U1 which is provided with a power end, a detection end, and a control output end. The electronic switch K2 is provided with a control end, an input end, and an output end. A touch switch K1 and a diode D1 are sequentially connected in series between the power end of the single-chip microcomputer U1 and a battery. The anode of the diode D1 is connected with the touch switch K1. The cathode of the diode D1 is connected with the power end of the single-chip microcomputer U1. The detection end of the single-chip microcomputer U1 is connected with the anode of the diode D1. The input end of the electronic switch K2 is connected with the battery. The output end of the electronic switch K2 is connected with a subsequent load circuit. The control end of the electronic switch K2 is connected with the control output end of the single-chip microcomputer U1. The on/off of the electronic switch K2 is controlled by the single-chip microcomputer U1. The output end of the electronic switch K2 is connected with the power end of the single-chip microcomputer U1.
Description
Technical field
The utility model relates to electronic applications, is specifically related to a kind of for battery powered electronic switch.
Background technology
Battery powered electronic equipment is under holding state, and its main control unit (single-chip microcomputer) is generally to can wake up at any time in standby low-power consumption mode.Due to not quitting work truly of main control unit and its peripheral circuit, therefore or can battery electric quantity be produced and be consumed.Moreover, some components and parts that are connected with battery, such as electronic switches etc., also can produce electric leakage in various degree.After testing, the standby leakage electric current in existing electronic equipment is mostly milliampere level, and this produces larger consumption to battery electric quantity undoubtedly, and the most directly to embody be exactly that battery is not durable.
Utility model content
For the problems referred to above, the utility model proposes one for battery powered electronic switch, its standby leakage electric current is only microampere order, the effectively stand-by time of extension device.
One, for battery powered microampere order standby current electronic switch, comprises single-chip microcomputer U1, and it is provided with power end, test side and control output end; Electronic switch K2, it is provided with control end, input end and output terminal; And touch-switch K1, diode D1;
Between the power end of described single-chip microcomputer U1 and battery, be connected in series with successively touch-switch K1 and diode D1, the anode of described diode D1 is connected with touch-switch K1, and the negative electrode of diode D1 is connected with the power end of single-chip microcomputer U1; The anodic bonding of the test side of described single-chip microcomputer U1 and diode D1; The input end of described electronic switch K2 connects battery, and the output terminal of electronic switch K2 connects follow-up load circuit, and the control end of electronic switch K2 is connected with the control output end of single-chip microcomputer U1; Electronic switch K2 is controlled and is realized conducting or cut-off by single-chip microcomputer U1; The output terminal of described electronic switch K2 is connected with the power end of single-chip microcomputer U1.
In the time that touch-switch K1 is closed, single-chip microcomputer U1 activations of switch on, the control end of high level to electronic switch K2 exported in its control output end, and electronic switch K2 conducting is that single-chip microcomputer U1 and subsequent conditioning circuit are powered.In the time that touch-switch K1 disconnects, because single-chip microcomputer U1 also has electronic switch K2 path power supply, so still normal operation maintains the high level output of its control output end.
In the time again pressing touch-switch K1, the test side of single-chip microcomputer U1 detects the change in voltage of rising edge or negative edge, the control output end output cut-off of single-chip microcomputer U1, and electronic switch K2 also ends, and the power supply of subsequent conditioning circuit disconnects.
The technical solution of the utility model further comprises:
Preferably, described electronic switch K2 is metal-oxide-semiconductor switch or triode switch.
The beneficial effects of the utility model are: than prior art, such scheme the single-chip microcomputer stand-by power consumption in circuit and leakage current value of electronic switch in the time of standby greatly reduce, the effectively time on the opportunity for the treatment of of extension device.
Brief description of the drawings
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
As follows by reference to the accompanying drawings, the technical solution of the utility model is described:
As shown in Figure 1, one, for battery powered microampere order standby current electronic switch, comprises single-chip microcomputer U1, and it is provided with power end VCC, test side D and control output end C; Electronic switch K2, it is provided with control end III, input end I and output terminal II; And touch-switch K1, diode D1; Between the power end VCC of described single-chip microcomputer U1 and battery, be connected in series with successively touch-switch K1 and diode D1, the anode of described diode D1 is connected with touch-switch K1, and the negative electrode of diode D1 is connected with the power end VCC of single-chip microcomputer U1; The anodic bonding of the test side of described single-chip microcomputer U1 and diode D1; The input end I of described electronic switch K2 connects battery, and the output terminal II of electronic switch K2 connects follow-up load circuit, and the control end III of electronic switch K2 is connected with the control output end C of single-chip microcomputer U1; Electronic switch K2 is controlled and is realized conducting or cut-off by single-chip microcomputer U1; The output terminal II of described electronic switch K2 is connected with the power end VCC of single-chip microcomputer U1.
Particularly, described electronic switch K2 is metal-oxide-semiconductor switch or triode switch.
Above-mentioned is preferred implementation of the present utility model, and concrete enforcement of the present utility model is not limited to this.Circuit structure all and of the present utility model duplicates mutually, deduction, improvement, equivalence approximate or that done are based on this replaced etc., is all considered as protection domain of the present utility model.
Claims (2)
1. for a battery powered microampere order standby current electronic switch, it is characterized in that: comprise single-chip microcomputer U1, it is provided with power end, test side and control output end; Electronic switch K2, it is provided with control end, input end and output terminal; And touch-switch K1, diode D1;
Between the power end of described single-chip microcomputer U1 and battery, be connected in series with successively touch-switch K1 and diode D1, the anode of described diode D1 is connected with touch-switch K1, and the negative electrode of diode D1 is connected with the power end of single-chip microcomputer U1; The anodic bonding of the test side of described single-chip microcomputer U1 and diode D1; The input end of described electronic switch K2 connects battery, and the output terminal of electronic switch K2 connects follow-up load circuit, and the control end of electronic switch K2 is connected with the control output end of single-chip microcomputer U1; Electronic switch K2 is controlled and is realized conducting or cut-off by single-chip microcomputer U1; The output terminal of described electronic switch K2 is connected with the power end of single-chip microcomputer U1.
2. one according to claim 1, for battery powered microampere order standby current electronic switch, is characterized in that: described electronic switch K2 is metal-oxide-semiconductor switch or triode switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755398.0U CN203812024U (en) | 2013-11-25 | 2013-11-25 | Microamp-level standby-current electronic switch for battery power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755398.0U CN203812024U (en) | 2013-11-25 | 2013-11-25 | Microamp-level standby-current electronic switch for battery power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812024U true CN203812024U (en) | 2014-09-03 |
Family
ID=51450753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755398.0U Expired - Fee Related CN203812024U (en) | 2013-11-25 | 2013-11-25 | Microamp-level standby-current electronic switch for battery power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812024U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589343A (en) * | 2014-11-14 | 2016-05-18 | 西安电子科技大学 | Single-power accurately controllable time switch based on programmable device |
-
2013
- 2013-11-25 CN CN201320755398.0U patent/CN203812024U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589343A (en) * | 2014-11-14 | 2016-05-18 | 西安电子科技大学 | Single-power accurately controllable time switch based on programmable device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20161125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |