CN103823358A - Power supply control circuit - Google Patents
Power supply control circuit Download PDFInfo
- Publication number
- CN103823358A CN103823358A CN201410101999.9A CN201410101999A CN103823358A CN 103823358 A CN103823358 A CN 103823358A CN 201410101999 A CN201410101999 A CN 201410101999A CN 103823358 A CN103823358 A CN 103823358A
- Authority
- CN
- China
- Prior art keywords
- npn triode
- resistance
- pin
- flip flop
- type flip
- 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.)
- Granted
Links
Images
Landscapes
- Protection Of Static Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a power supply control circuit which comprises a trigger and a triode Q2, wherein a pin of the trigger is connected to a metal oxide semiconductor (MOS) transistor Q5; a pin R of the trigger is connected with a level control circuit; a pin CLK of the trigger is connected with a collector of the triode Q2; an emitter of the triode Q2 is grounded; a grounding end of the emitter of the triode Q2 is connected in series with a switch K1 through a resistor R5; a base of the triode Q2 is connected with the switch K1 through a resistor R4; a switch on-off detection circuit is connected between the resistor R4 and the switch K1; a capacitor E2 is connected between the base of the triode Q2 and the resistor R5; a resistor R6 and a resistor R7 which are connected in series with each other are connected between the base of the triode Q2 and the pin CLK of the trigger; an external power supply PWR-CON is connected between the resistor R6 and the resistor R7; the external power supply PWR-CON is also connected with a pin D of the trigger. According to the power supply control circuit, an effect of well protecting a battery can be achieved, and startup and shutdown can be delayed.
Description
Technical field
The present invention relates to a kind of control circuit, relate in particular a kind of power control circuit of time check instrument.
Background technology
Time check instrument, for the precision of checking time, is used for some and counts field accurately, as rocket launching, satellite navigation, astronomical clock etc. need the field that time precision is high.Time check instrument is inlayed battery in all understanding, to prevent unexpected power-off, equipment is caused to damage; In order to protect battery and internal electrical device; in time check instrument, need to design a power supply control protection electric circuit, for the protection of battery, avoided putting and reduced battery life; also to reach the object of delay switch machine, bring electrical part loss for the unexpected switching on and shutting down that reduce electrical part simultaneously.
Summary of the invention
The invention provides a kind of power control circuit, for the protection of battery with reach delay switch machine, battery and internal electrical device is fragile, the life-span is short problem in settling time tester.
For solving above-mentioned technical matters, the present invention by the following technical solutions: power control circuit, comprises d type flip flop and NPN triode Q2, the pin of d type flip flop
be connected with P channel MOS tube Q5, the pin R of described d type flip flop is connected with level control circuit, the pin CLK of described d type flip flop connects the collector of NPN triode Q2, the grounded emitter of described NPN triode Q2, the earth terminal of the emitter of described NPN triode Q2 is serially connected with K switch 1 by resistance R 5, the base stage of described NPN triode Q2 is connected with K switch 1 by resistance R 4, between described resistance R 4 and K switch 1, be also connected with switch on and off testing circuit, between the base stage of described NPN triode Q2 and resistance R 5, be also connected with electric capacity E2, between the base stage of described NPN triode Q2 and the pin CLK of d type flip flop, be also connected with two resistance R 6 and resistance R 7 that are mutually connected in series, between described resistance R 6 and resistance R 7, connect external power source PWR-CON, external power source PWR-CON is connected with the pin D of d type flip flop simultaneously.
Described level control circuit comprises NPN triode Q3, the collector of NPN triode Q3 is connected with the pin R of d type flip flop, between the collector of described NPN triode Q3 and the pin R of d type flip flop, be connected with external power source PWR-CON by resistance R 15, the grounded emitter of described NPN triode Q3, the base stage of described NPN triode Q3 connects soft switch P WR-OFF by resistance R 17, the base terminal of described NPN triode Q3 is also connected with the electric capacity E3 of ground connection, the other end that described resistance R 17 is connected with the base stage of NPN triode Q3 is also parallel with stake resistance R9 and connects the resistance R 10 of external power source PWR-CON.
Described switch on and off testing circuit comprises NPN triode Q1, the base stage of NPN triode Q1 is connected to the common port of resistance R 4 and K switch 1 by resistance R 3, the collector of described NPN triode Q1 is connected with two resistance R 1 in parallel and resistance R 2, described resistance R 1 connects external detection signal input circuit, described resistance R 2 connects external power source PWR-CON, the grounded emitter of described NPN triode Q1, the collector and emitter of described NPN triode Q1 is also connected with electric capacity E1 in parallel and voltage stabilizing diode D6.
The pin of described d type flip flop
and between P channel MOS tube Q5, be also connected with resistance and be the R12 of 100 kilo-ohms.
Described d type flip flop model is CD4013.
Described NPN triode Q1, NPN triode Q2 and NPN triode Q3 all adopt 9013 type triodes.
Compared with prior art, the invention has the beneficial effects as follows: this power control circuit of the present invention's design, can play a very good protection to battery, realize delay switch machine simultaneously, protect normally cut-offfing of internal electrical device.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Embodiment
Power control circuit as shown in Figure 1, comprises d type flip flop and NPN triode Q2, the pin of d type flip flop
be connected with P channel MOS tube Q5, the pin R of described d type flip flop is connected with level control circuit, the pin CLK of described d type flip flop connects the collector of NPN triode Q2, the grounded emitter of described NPN triode Q2, the earth terminal of the emitter of described NPN triode Q2 is serially connected with K switch 1 by resistance R 5, the base stage of described NPN triode Q2 is connected with K switch 1 by resistance R 4, between described resistance R 4 and K switch 1, be also connected with switch on and off testing circuit, between the base stage of described NPN triode Q2 and resistance R 5, be also connected with electric capacity E2, between the base stage of described NPN triode Q2 and the pin CLK of d type flip flop, be also connected with two resistance R 6 and resistance R 7 that are mutually connected in series, between described resistance R 6 and resistance R 7, connect external power source PWR-CON, external power source PWR-CON is connected with the pin D of d type flip flop simultaneously.Described level control circuit comprises NPN triode Q3, the collector of NPN triode Q3 is connected with the pin R of d type flip flop, between the collector of described NPN triode Q3 and the pin R of d type flip flop, be connected with external power source PWR-CON by resistance R 15, the grounded emitter of described NPN triode Q3, the base stage of described NPN triode Q3 connects soft switch P WR-OFF by resistance R 17, the base terminal of described NPN triode Q3 is also connected with the electric capacity E3 of ground connection, the other end that described resistance R 17 is connected with the base stage of NPN triode Q3 is also parallel with stake resistance R9 and connects the resistance R 10 of external power source PWR-CON.Described switch on and off testing circuit comprises NPN triode Q1, the base stage of NPN triode Q1 is connected to the common port of resistance R 4 and K switch 1 by resistance R 3, the collector of described NPN triode Q1 is connected with two resistance R 1 in parallel and resistance R 2, described resistance R 1 connects external detection signal input circuit, described resistance R 2 connects external power source PWR-CON, the grounded emitter of described NPN triode Q1, the collector and emitter of described NPN triode Q1 is also connected with electric capacity E1 in parallel and voltage stabilizing diode D6.The pin of described d type flip flop
and between P channel MOS tube Q5, be also connected with resistance and be the R12 of 100 kilo-ohms.Described d type flip flop model is CD4013.Described NPN triode Q1, NPN triode Q2 and NPN triode Q3 all adopt 9013 type triodes.
In the present embodiment, because tester is built-in with battery, circuit is powered all the time, and in the time that K switch 1 is closed, the CLK pin level saltus step from low to high of d type flip flop, causes pin
output low level, P channel MOS tube Q5 conducting, power supply starts power supply to the device; In the time that K switch 1 disconnects, external detection signal input circuit detects that on off state disconnects, and soft switch P WR-OFF connects and output low level, makes NPN triode Q3 conducting, at the RST of d type flip flop pin input high level, it is resetted, and at pin
output high level, makes P channel MOS tube Q5 cut-off turn-off apparatus power supply.
Thereby the present embodiment can be controlled pin by adding level control circuit
the height of output pad, thereby can control conducting and the cut-off of P channel MOS tube Q5, add switch on and off testing circuit simultaneously switch K1 is carried out to break-make detection, thereby can cross while putting battery is disconnected to the effect of playing protection battery at internal cell, simultaneously, in the time that K switch 1 is closed, the delay that the connecting circuit of holding by CLK can realize power supply is communicated with, make the saltus step from low to high of CLK pin level, guarantee that the slow start of tester is until enter duty, simultaneously in the time that K switch 1 disconnects, can make its reset by level control circuit control d type flip flop, thereby can realize closing of tester, in the time of switching on and shutting down by delayed mode, to reduce the loss of unexpected switching on and shutting down to tester internal electrical device, fabulous protection internal electrical device, security and practicality greatly improve.
Be as mentioned above embodiments of the invention.The present invention is not limited to above-mentioned embodiment, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, within all falling into protection scope of the present invention.
Claims (6)
1. power control circuit, is characterized in that: comprise d type flip flop and NPN triode Q2, the pin of d type flip flop
be connected with P channel MOS tube Q5, the pin R of described d type flip flop is connected with level control circuit, the pin CLK of described d type flip flop connects the collector of NPN triode Q2, the grounded emitter of described NPN triode Q2, the earth terminal of the emitter of described NPN triode Q2 is serially connected with K switch 1 by resistance R 5, the base stage of described NPN triode Q2 is connected with K switch 1 by resistance R 4, between described resistance R 4 and K switch 1, be also connected with switch on and off testing circuit, between the base stage of described NPN triode Q2 and resistance R 5, be also connected with electric capacity E2, between the base stage of described NPN triode Q2 and the pin CLK of d type flip flop, be also connected with two resistance R 6 and resistance R 7 that are mutually connected in series, between described resistance R 6 and resistance R 7, connect external power source PWR-CON, external power source PWR-CON is connected with the pin D of d type flip flop simultaneously.
2. power control circuit according to claim 1, it is characterized in that: described level control circuit comprises NPN triode Q3, the collector of NPN triode Q3 is connected with the pin R of d type flip flop, between the collector of described NPN triode Q3 and the pin R of d type flip flop, be connected with external power source PWR-CON by resistance R 15, the grounded emitter of described NPN triode Q3, the base stage of described NPN triode Q3 connects soft switch P WR-OFF by resistance R 17, the base terminal of described NPN triode Q3 is also connected with the electric capacity E3 of ground connection, the other end that described resistance R 17 is connected with the base stage of NPN triode Q3 is also parallel with stake resistance R9 and connects the resistance R 10 of external power source PWR-CON.
3. power control circuit according to claim 1, it is characterized in that: described switch on and off testing circuit comprises NPN triode Q1, the base stage of NPN triode Q1 is connected to the common port of resistance R 4 and K switch 1 by resistance R 3, the collector of described NPN triode Q1 is connected with two resistance R 1 in parallel and resistance R 2, described resistance R 1 connects external detection signal input circuit, described resistance R 2 connects external power source PWR-CON, the grounded emitter of described NPN triode Q1, the collector and emitter of described NPN triode Q1 is also connected with electric capacity E1 in parallel and voltage stabilizing diode D6.
4. power control circuit according to claim 1, is characterized in that: the pin of described d type flip flop
and between P channel MOS tube Q5, be also connected with resistance and be the R12 of 100 kilo-ohms.
5. power control circuit according to claim 1, is characterized in that: described d type flip flop model is CD4013.
6. power control circuit according to claim 1, is characterized in that: described NPN triode Q1, NPN triode Q2 and NPN triode Q3 all adopt 9013 type triodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410101999.9A CN103823358B (en) | 2014-03-19 | 2014-03-19 | Power control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410101999.9A CN103823358B (en) | 2014-03-19 | 2014-03-19 | Power control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103823358A true CN103823358A (en) | 2014-05-28 |
| CN103823358B CN103823358B (en) | 2016-04-20 |
Family
ID=50758476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410101999.9A Active CN103823358B (en) | 2014-03-19 | 2014-03-19 | Power control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103823358B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471255A (en) * | 2017-07-17 | 2017-12-15 | 合肥智灵机器人有限公司 | Power panel, robot for robot |
| CN108873759A (en) * | 2017-05-10 | 2018-11-23 | 腾讯科技（深圳）有限公司 | A kind of circuit, circuit protection method and electronic equipment |
| CN112671491A (en) * | 2020-12-10 | 2021-04-16 | 成都引众数字设备有限公司 | Direct-current B code transmission delay compensation method and device |
| CN113395061A (en) * | 2021-07-07 | 2021-09-14 | 烟台艾睿光电科技有限公司 | One-key switch machine device and power supply system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150650Y (en) * | 1993-06-15 | 1993-12-22 | 梁书文 | Multifunction safety controller for power supply |
| US5705987A (en) * | 1996-01-22 | 1998-01-06 | Agf Manufacturing, Inc. | Circuit for controlling operation of a load after a predetermined time delay |
| CN2522908Y (en) * | 2001-01-05 | 2002-11-27 | 深圳市中兴通讯股份有限公司 | Power source control device to improve transient property |
| CN101593016A (en) * | 2008-05-30 | 2009-12-02 | 鸿富锦精密工业（深圳）有限公司 | Power control circuit |
| CN101924466A (en) * | 2009-06-16 | 2010-12-22 | 鸿富锦精密工业（深圳）有限公司 | Power supply control circuit |
| CN203786480U (en) * | 2014-03-19 | 2014-08-20 | 成都引众数字设备有限公司 | Power supply control circuit |
-
2014
- 2014-03-19 CN CN201410101999.9A patent/CN103823358B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150650Y (en) * | 1993-06-15 | 1993-12-22 | 梁书文 | Multifunction safety controller for power supply |
| US5705987A (en) * | 1996-01-22 | 1998-01-06 | Agf Manufacturing, Inc. | Circuit for controlling operation of a load after a predetermined time delay |
| CN2522908Y (en) * | 2001-01-05 | 2002-11-27 | 深圳市中兴通讯股份有限公司 | Power source control device to improve transient property |
| CN101593016A (en) * | 2008-05-30 | 2009-12-02 | 鸿富锦精密工业（深圳）有限公司 | Power control circuit |
| CN101924466A (en) * | 2009-06-16 | 2010-12-22 | 鸿富锦精密工业（深圳）有限公司 | Power supply control circuit |
| CN203786480U (en) * | 2014-03-19 | 2014-08-20 | 成都引众数字设备有限公司 | Power supply control circuit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873759A (en) * | 2017-05-10 | 2018-11-23 | 腾讯科技（深圳）有限公司 | A kind of circuit, circuit protection method and electronic equipment |
| CN107471255A (en) * | 2017-07-17 | 2017-12-15 | 合肥智灵机器人有限公司 | Power panel, robot for robot |
| CN112671491A (en) * | 2020-12-10 | 2021-04-16 | 成都引众数字设备有限公司 | Direct-current B code transmission delay compensation method and device |
| CN113395061A (en) * | 2021-07-07 | 2021-09-14 | 烟台艾睿光电科技有限公司 | One-key switch machine device and power supply system |
| CN113395061B (en) * | 2021-07-07 | 2022-09-06 | 烟台艾睿光电科技有限公司 | One-key switch machine device and power supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103823358B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102202117B (en) | Electronic device with USB (universal serial bus) interface and USB communication starting method thereof | |
| CN103823358B (en) | Power control circuit | |
| CN101309007A (en) | Charging protection circuit for battery | |
| CN203786480U (en) | Power supply control circuit | |
| CN103166208A (en) | Power supplying circuit capable of hindering surge currents | |
| CN106602532B (en) | Current-limiting circuit and its driving method, PMIC protection system and display apparatus protecting system | |
| CN101442046A (en) | Dynamic detection electrostatic protection circuit structure | |
| CN105048422A (en) | Switch transistor voltage drop holding circuit and application of switch transistor voltage drop holding circuit in lithium battery protection circuit | |
| CN205792219U (en) | A kind of dummy load circuit of power circuit | |
| CN203012568U (en) | Constant current source circuit for global position system (GPS) device | |
| US9148014B2 (en) | Battery protection circuit | |
| CN106253455B (en) | A kind of power supply circuit | |
| CN105182833B (en) | A kind of dual power supply and power-off time sequence control device and method | |
| CN203415955U (en) | Novel short-circuit protection circuit for switching power supply | |
| CN203232871U (en) | Electrostatic protection circuit for IO port of USB flash disk | |
| CN102623950B (en) | Protection circuit for high-voltage integrated circuit | |
| CN110442350B (en) | SPI flash burns record ware | |
| CN203434587U (en) | Relay output short-circuit self-protection device | |
| Cao et al. | A low-leakage power clamp ESD protection circuit with prolonged ESD discharge time and compact detection network | |
| CN204559110U (en) | Based on the power supply current foldback circuit of integrated circuit | |
| CN203233161U (en) | Mobile phone with surge protection and electrostatic protection | |
| US20160352324A1 (en) | Switch circuit and jbod within the switch circuit | |
| CN204990273U (en) | Support serial ports of hot plug to transfer test panel | |
| CN104731680A (en) | Startup and shutdown testing circuit | |
| CN103248036A (en) | Turn-on anti-surge protector for radio interface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |