CN205540054U - Power -off control ware is driven in low -power consumption - Google Patents
Power -off control ware is driven in low -power consumption Download PDFInfo
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- CN205540054U CN205540054U CN201620266887.3U CN201620266887U CN205540054U CN 205540054 U CN205540054 U CN 205540054U CN 201620266887 U CN201620266887 U CN 201620266887U CN 205540054 U CN205540054 U CN 205540054U
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- resistance
- electric capacity
- audion
- triode
- key switch
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Abstract
The utility model discloses a power -off control ware is driven in low -power consumption, including resistance R1, electric capacity C1, key switch SB, triode Q1, diode D1 and triode Q2, resistance R1 one end connect respectively VCC and triode Q1 projecting pole, the resistance R1 other end is connecting resistance R2 and triode Q1 base respectively, diode D1 negative pole is connected respectively to the resistance R2 other end, resistance R3 and triode Q2 collecting electrode, key switch SB and electric capacity C1 are connected respectively to the resistance R3 other end, the key switch SB other end is connecting resistance R5 respectively, electric capacity C2, resistance R4 and triode Q2 base, triode Q1 collecting electrode and output vo are connected respectively to the resistance R5 other end. The utility model discloses power -off control ware is driven in low -power consumption adopts the control of triode cooperation key switch SB, does not have the current flow during standby basically, and the consumption is very low, and application scope is wide.
Description
Technical field
This utility model relates to a kind of controller, specifically a kind of low power consumption switch machine controller.
Background technology
Switching Power Supply is to utilize modern power electronics technology, control the time ratio that switching tube turns on and off, maintain a kind of power supply of regulated output voltage, Switching Power Supply is typically made up of pulse width modulation control single chip computer and MOSFET, development and innovation along with Power Electronic Technique so that switch power technology is also innovated constantly.At present, Switching Power Supply is widely used almost all of electronic equipment with small-sized, light weight and high efficiency feature, it is that current electronics and information industry develops rapidly indispensable a kind of power mode, and single-chip microcomputer is as the miniature control of modern society requisite control element, its power switch controls the emphasis of the interior research of always industry, in existing a lot of Single Chip Microcomputer (SCM) system on-off circuit, it is impossible to accomplishing to complete switch off power supply, stand-by power consumption is higher.
Utility model content
The purpose of this utility model is to provide a kind of low power consumption switch machine controller, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
nullA kind of low power consumption switch machine controller，Including resistance R1、Electric capacity C1、Key switch SB、Audion Q1、Diode D1 and audion Q2，Described resistance R1 one end connects power supply VCC and audion Q1 emitter stage respectively，The resistance R1 other end connects resistance R2 and audion Q1 base stage respectively，The resistance R2 other end connects diode D1 negative pole respectively、Resistance R3 and audion Q2 colelctor electrode，The resistance R3 other end connects key switch SB and electric capacity C1 respectively，The key switch SB other end connects resistance R5 respectively、Electric capacity C2、Resistance R4 and audion Q2 base stage，The resistance R5 other end connecting triode Q1 colelctor electrode and output end vo respectively，Audion Q2 emitter stage connects electric capacity C4 and resistance R6 respectively，The resistance R6 other end connects the electric capacity C3 other end respectively、The resistance R4 other end、The electric capacity C2 other end、The electric capacity C1 other end and diode D1 positive pole.
As this utility model further scheme: described power supply VCC voltage is 5V.
Compared with prior art, the beneficial effects of the utility model are: this utility model low power consumption switch machine controller, use audion to coordinate key switch SB to control, and basic no current flows time standby, power consumption is the lowest, applied widely.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of low power consumption switch machine controller.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to figure，In this utility model embodiment，A kind of low power consumption switch machine controller，Including resistance R1、Electric capacity C1、Key switch SB、Audion Q1、Diode D1 and audion Q2，Described resistance R1 one end connects power supply VCC and audion Q1 emitter stage respectively，The resistance R1 other end connects resistance R2 and audion Q1 base stage respectively，The resistance R2 other end connects diode D1 negative pole respectively、Resistance R3 and audion Q2 colelctor electrode，The resistance R3 other end connects key switch SB and electric capacity C1 respectively，The key switch SB other end connects resistance R5 respectively、Electric capacity C2、Resistance R4 and audion Q2 base stage，The resistance R5 other end connecting triode Q1 colelctor electrode and output end vo respectively，Audion Q2 emitter stage connects electric capacity C4 and resistance R6 respectively，The resistance R6 other end connects the electric capacity C3 other end respectively、The resistance R4 other end、The electric capacity C2 other end、The electric capacity C1 other end and diode D1 positive pole；Described power supply VCC voltage is 5V.
Refer to Fig. 1,1, start: during start, C1 is charged by VCC by R1, R2, R3, moment maximum pressure drop on R1 is VCC* [R1/ (R1+R2+R3)], the voltage got on R1 in the case of VCC is 3～12V obviously cannot allow Q1 turn on, certainly Q2 the most just cannot obtain the necessary base current of conducting, is also maintained at by state.After a period of time, the both end voltage of C1 reaches this time of VCC(and is determined by capacitance and R1, R2, R3), circuit enters holding state.
2, pressing SB: press SB moment, C1 is that C2 charges by SB, the most also provides conducting electric current for Q2 base stage, and owing to C1 capacity is much larger than C2 capacity, C2 will quickly be full of, it should be noted that the capacity arrangement of C1, C2, if C2 is much larger than C1, circuit cannot work.The electric capacity C1 CE knot slowly electric discharge by Q2 after Q2 conducting, after a period of time, the voltage on C1, C2 will be equal to Q2 base stage pressure drop.Q2 the most also provides base current to make Q1 enter conducting state for Q1, and Q1 provides base current by R5 for Q2 again, and circuit enters steady-working state.
3, release SB: after release SB, C1 continues through the CE knot electric discharge of R3 and Q2, till being directly put into the CE pressure drop that both end voltage is Q2
4, again press SB:C2 to discharge to C1 to by SB, owing to two capacitances have a long way to go, C2 both end voltage i.e. Q2 base voltage by C1 be pulled down to cannot be Q2 conducting value, Q2 by, Q1 the most therewith by, C1, C2 are charged by power supply VCC by R1, R2, R3, the highest are charged to VCC* [R4/ (R1+R2+R3+R4)], and this most also cannot allow Q2 turn on.
5, release SB: after release SB, VCC continues through R1, R2, R3 C1 charging being known, C1 both end voltage is VCC, C2 by R4 electric discharge until two ends pressure drop is 0, circuit entrance holding state.
Zener diode D1 is used for preventing booting moment voltage excessive, the harm that may cause electric capacity C1 and key switch SB.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in this utility model.Should not be considered as limiting involved claim by any reference in claim.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (2)
- null1. a low power consumption switch machine controller，Including resistance R1、Electric capacity C1、Key switch SB、Audion Q1、Diode D1 and audion Q2，It is characterized in that，Described resistance R1 one end connects power supply VCC and audion Q1 emitter stage respectively，The resistance R1 other end connects resistance R2 and audion Q1 base stage respectively，The resistance R2 other end connects diode D1 negative pole respectively、Resistance R3 and audion Q2 colelctor electrode，The resistance R3 other end connects key switch SB and electric capacity C1 respectively，The key switch SB other end connects resistance R5 respectively、Electric capacity C2、Resistance R4 and audion Q2 base stage，The resistance R5 other end connecting triode Q1 colelctor electrode and output end vo respectively，Audion Q2 emitter stage connects electric capacity C4 and resistance R6 respectively，The resistance R6 other end connects the electric capacity C3 other end respectively、The resistance R4 other end、The electric capacity C2 other end、The electric capacity C1 other end and diode D1 positive pole.
- Low power consumption switch machine controller the most according to claim 1, it is characterised in that described power supply VCC voltage is 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620266887.3U CN205540054U (en) | 2016-04-01 | 2016-04-01 | Power -off control ware is driven in low -power consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620266887.3U CN205540054U (en) | 2016-04-01 | 2016-04-01 | Power -off control ware is driven in low -power consumption |
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| Publication Number | Publication Date |
|---|---|
| CN205540054U true CN205540054U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620266887.3U Expired - Fee Related CN205540054U (en) | 2016-04-01 | 2016-04-01 | Power -off control ware is driven in low -power consumption |
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| CN (1) | CN205540054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112596448A (en) * | 2020-12-24 | 2021-04-02 | 上海移远通信技术股份有限公司 | Control circuit and electronic device |
-
2016
- 2016-04-01 CN CN201620266887.3U patent/CN205540054U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112596448A (en) * | 2020-12-24 | 2021-04-02 | 上海移远通信技术股份有限公司 | Control circuit and electronic device |
| CN112596448B (en) * | 2020-12-24 | 2021-10-12 | 上海移远通信技术股份有限公司 | Control circuit and electronic 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170401 |