CN206432735U - A kind of dc source double work state control circuit - Google Patents
A kind of dc source double work state control circuit Download PDFInfo
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- CN206432735U CN206432735U CN201720010833.5U CN201720010833U CN206432735U CN 206432735 U CN206432735 U CN 206432735U CN 201720010833 U CN201720010833 U CN 201720010833U CN 206432735 U CN206432735 U CN 206432735U
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Abstract
The utility model discloses a kind of dc source double work state control circuit, including power sense circuit, control relay circuit and flashing indicator light circuit, the power sense circuit includes resistance R1, resistance R2, three end adjustable reference source T1 and potentiometer RP1, control relay circuit includes triode V1 and relay K, and flashing indicator light circuit includes resistance R3, resistance R4, double base diode V2 and triode V3.The utility model dc source double work state control circuit provides voltage by two voltage input ends that supply voltage acquisition module and reference voltage module are respectively voltage comparator chip, the working condition of circuit is controlled using the fundamental characteristics combination triode and relay of voltage comparator, can either prevent power supply because overdischarge causes voltage relatively low and service life reduction therefore, passage of scintillation light can be sent again make and timely remind.
Description
Technical field
The utility model is related to a kind of power circuit, specifically a kind of dc source double work state control circuit.
Background technology
Battery is most common energy-storage travelling wave tube in daily life, greatly to automobile, electric car, small to mobile phone, in charger baby
Portion is by battery, it is well known that the service life of battery can be fewer and fewer with the lengthening electricity of use time, very big by one
Voltage reduction can cause pole plate to be acidified caused by being partly because battery overdischarge, so that reducing the normal of battery makes
With the life-span, most of battery is not equipped with undervoltage protection device in the market, and reason is existing under-voltage protecting circuit
Mostly complicated, the protection device volume produced is larger, and quiescent dissipation is big during for monitoring voltage, wastes electric energy,
Also affect the output voltage stability of load.
Utility model content
The purpose of this utility model is to provide a kind of dc source double work state control simple in construction, easy to use
Circuit, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of dc source double work state control circuit, including power sense circuit, control relay circuit and flicker
Indicator light circuit, the power sense circuit includes resistance R1, resistance R2, three end adjustable reference source T1 and potentiometer RP1, relay
Device control circuit includes triode V1 and relay K, and flashing indicator light circuit includes resistance R3, resistance R4, double base diode
V2 and triode V3；
One end connection resistance R2 of the resistance R1, relay K, the pin 2 of chip IC 1, relay K contact K-1
Moved end and power supply E positive pole, the resistance R1 other end connect three end adjustable reference source T1 negative electrode and the pin 3 of chip IC 1, electricity
Hinder R2 other end connection potentiometer RP1 and the pin 1 of chip IC 1, the connecting triode V1 of pin 4 of chip IC 1 base stage, three
The pole pipe V1 collector connection relay K other end, potentiometer RP1 other end connection electric capacity C1, resistance R5, triode V1
Emitter stage, triode V3 emitter stage, resistance R8, load A, three end adjustable reference source T1 anode and power supply E negative pole, after
The electrical equipment K contact K-1 connection resistance R3 of not moved end 1, resistance R4 and diode D1 anode, resistance R3 other end connection electricity
Hold the C1 other end and double base diode V2 emitter stage, resistance R4 other end connection double base diode V2 the first base
Pole, resistance R5 other end connection double base diode V2 the second base stage and resistance R6, resistance the R6 other end connect three poles
Pipe V3 base stage, triode V3 colelctor electrode connection resistance R7, resistance the R7 other end connection diode D1 negative electrode, diode
The D2 negative electrode connection resistance R8 other end.
It is used as preferred scheme of the present utility model：The model LM321 of the chip IC 1.
It is used as preferred scheme of the present utility model：The diode D1 is red light-emitting diode, and diode D2 is green glow
Light emitting diode.
Compared with prior art, the beneficial effects of the utility model are：The utility model dc source double work state control
Circuit processed passes through two voltage input ends that supply voltage acquisition module and reference voltage module are respectively voltage comparator chip
Voltage is provided, the working condition of circuit is controlled using the fundamental characteristics combination triode and relay of voltage comparator,
Can either prevent power supply because overdischarge causes voltage relatively low and service life reduction therefore, passage of scintillation light can be sent again and is made in time
Prompting.
Brief description of the drawings
Fig. 1 is the circuit diagram of dc source double work state control circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Referring to Fig. 1, a kind of dc source double work state control circuit, including power sense circuit, Control
Circuit and flashing indicator light circuit, the power sense circuit include resistance R1, resistance R2, three end adjustable reference source T1 and current potential
Device RP1, control relay circuit includes triode V1 and relay K, and flashing indicator light circuit includes resistance R3, resistance R4, double
Base diode V2 and triode V3；
One end connection resistance R2 of the resistance R1, relay K, the pin 2 of chip IC 1, relay K contact K-1
Moved end and power supply E positive pole, the resistance R1 other end connect three end adjustable reference source T1 negative electrode and the pin 3 of chip IC 1, electricity
Hinder R2 other end connection potentiometer RP1 and the pin 1 of chip IC 1, the connecting triode V1 of pin 4 of chip IC 1 base stage, three
The pole pipe V1 collector connection relay K other end, potentiometer RP1 other end connection electric capacity C1, resistance R5, triode V1
Emitter stage, triode V3 emitter stage, resistance R8, load A, three end adjustable reference source T1 anode and power supply E negative pole, after
The electrical equipment K contact K-1 connection resistance R3 of not moved end 1, resistance R4 and diode D1 anode, resistance R3 other end connection electricity
Hold the C1 other end and double base diode V2 emitter stage, resistance R4 other end connection double base diode V2 the first base
Pole, resistance R5 other end connection double base diode V2 the second base stage and resistance R6, resistance the R6 other end connect three poles
Pipe V3 base stage, triode V3 colelctor electrode connection resistance R7, resistance the R7 other end connection diode D1 negative electrode, diode
The D2 negative electrode connection resistance R8 other end.
The model LM321 of chip IC 1.Diode D1 is red light-emitting diode, and diode D2 is the pole of green luminescence two
Pipe.
Operation principle of the present utility model is：Chip IC 1, resistance R1, resistance R2, three end adjustable reference source T1 in circuit
Deng composition voltage detection module, wherein reference voltage is made up of resistance R1 and three end adjustable reference source T1, by three end adjustable references
The fundamental characteristics in source understands the voltage of its negative electrode for stationary value, therefore 3 pin voltages of chip IC 1 are fixed, resistance R2 and current potential
Device RP1 is as the sampling module of supply voltage, and the voltage of its dividing point changes with the change of voltage, when E voltage is normal
When, 1 pin voltage of chip IC 1 is higher than 3 pin voltages, and the now output of chip IC 1 low level, triode V1 is not turned on, and relay K is not
Be powered, its contact K-1 connects not moved end 2, now load A and be powered, at the same light emitting diode D2 light it is luminous, it is normal as power supply
Indicator lamp, with E electric discharge, its voltage is constantly reduced, therefore the voltage after resistance R2 and potentiometer RP1 partial pressures is also reduced,
That is the 1 pin voltage reduction of chip IC 1, when 1 pin voltage of chip IC 1 falls below 3 pin reference voltage, 4 pin of chip IC 1
High level is exported, triode V1 conductings, relay K is powered, and its contact K-1 connects not moved end 1, and now cell voltage passes through R3 pairs
C1 charges (charging interval is determined by R3, C1), makes V2, user is pointed out in V3 Discontinuous Conductions, light emitting diode D1 flickers, now electric
Pond is under-voltage, should charge the battery, it is to avoid battery is damaged because of overdischarge.
Claims (3)
1. a kind of dc source double work state control circuit, including power sense circuit, control relay circuit and flicker refer to
Indication lamp circuit, it is characterised in that the power sense circuit includes resistance R1, resistance R2, three end adjustable reference source T1 and current potential
Device RP1, control relay circuit includes triode V1 and relay K, and flashing indicator light circuit includes resistance R3, resistance R4, double
Base diode V2 and triode V3；
One end connection resistance R2 of the resistance R1, relay K, the pin 2 of chip IC 1, relay K contact K-1 moved end
With power supply E positive pole, the resistance R1 other end connects three end adjustable reference source T1 negative electrode and the pin 3 of chip IC 1, resistance R2
The other end connection potentiometer RP1 and chip IC 1 pin 1, the connecting triode V1 of pin 4 of chip IC 1 base stage, triode
The V1 collector connection relay K other end, potentiometer RP1 other end connection electric capacity C1, resistance R5, triode V1 hair
Emitter-base bandgap grading, triode V3 emitter stage, resistance R8, the negative pole for loading A, three end adjustable reference source T1 anode and power supply E, relay
The K contact K-1 connection resistance R3 of not moved end 1, resistance R4 and diode D1 anode, resistance R3 other end connection electric capacity C1
The other end and double base diode V2 emitter stage, resistance R4 other end connection double base diode V2 the first base stage,
Resistance R5 other end connection double base diode V2 the second base stage and resistance R6, resistance R6 other end connecting triode V3
Base stage, triode V3 colelctor electrode connection resistance R7, resistance the R7 other end connection diode D1 negative electrode, diode D2's
The negative electrode connection resistance R8 other end.
2. a kind of dc source double work state control circuit according to claim 1, it is characterised in that the chip
IC1 model LM321.
3. a kind of dc source double work state control circuit according to claim 1, it is characterised in that the diode
D1 is red light-emitting diode, and diode D2 is green light LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010833.5U CN206432735U (en) | 2017-01-05 | 2017-01-05 | A kind of dc source double work state control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010833.5U CN206432735U (en) | 2017-01-05 | 2017-01-05 | A kind of dc source double work state control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206432735U true CN206432735U (en) | 2017-08-22 |
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ID=59584561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720010833.5U Active CN206432735U (en) | 2017-01-05 | 2017-01-05 | A kind of dc source double work state control circuit |
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| Country | Link |
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| CN (1) | CN206432735U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609688A (en) * | 2018-02-28 | 2018-10-02 | 深圳市海司恩科技有限公司 | A kind of water sterilizing unit |
| CN108986417A (en) * | 2018-05-31 | 2018-12-11 | 新乡市华西卫材有限公司 | The warning device of material curtain coating compounding machine is defended in medical treatment |
-
2017
- 2017-01-05 CN CN201720010833.5U patent/CN206432735U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108609688A (en) * | 2018-02-28 | 2018-10-02 | 深圳市海司恩科技有限公司 | A kind of water sterilizing unit |
| CN108986417A (en) * | 2018-05-31 | 2018-12-11 | 新乡市华西卫材有限公司 | The warning device of material curtain coating compounding machine is defended in medical treatment |
| CN108986417B (en) * | 2018-05-31 | 2020-09-29 | 新乡市华西卫材有限公司 | Alarm device of medical sanitary material casting compound machine |
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