CN205212413U - Voltage detecting control circuit - Google Patents
Voltage detecting control circuit Download PDFInfo
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- CN205212413U CN205212413U CN201520972063.3U CN201520972063U CN205212413U CN 205212413 U CN205212413 U CN 205212413U CN 201520972063 U CN201520972063 U CN 201520972063U CN 205212413 U CN205212413 U CN 205212413U
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Abstract
The utility model discloses a voltage detecting control circuit, including three terminal regulator U1, diode D1, time base chip U2, resistance R1, electric capacity C1, one -way silicon controlled rectifier VS summation potential ware RP1, it is anodal that VCC and diode D2 are connected respectively to diode D1 positive pole, diode D1 negative pole is connecting resistance R1 and resistance R2 respectively, the emitting diode D4 negative pole is connected respectively to the resistance R1 other end, one -way silicon controlled rectifier VS's the A utmost point and resistance R4, the anodal connecting resistance R2 other end of emitting diode D4, one -way silicon controlled rectifier VS's the G utmost point is connected respectively to the resistance R4 other end, resistance R5 and time base chip U2 pin 3, potentiometre RP1 one end is connected respectively to one -way silicon controlled rectifier VS's the K utmost point, potentiometre RP2 one end and battery E are anodal. The utility model discloses voltage detecting control circuit adopts the one -way silicon controlled rectifier of NE555 cooperation as the controller, and circuit structure is simple, and is very accurate, small, with low costs to voltage detecting.
Description
Technical field
The utility model relates to a kind of testing circuit, specifically a kind of voltage detecting and controling circuit.
Background technology
Storage battery is energy storage electronic equipment common in daily life, as everyone knows, storage battery needs to charge after being finished electricity, most charger is all that constant current flings type in the market, the voltage constant of its charging, can not change along with the process of charge in batteries, more cannot realize automatically stopping charging, therefore be easy to the overshoot causing storage battery.How intelligence, safe charging modes, be the emphasis that people study.
Accomplish to make charge in batteries automatic stop, must detect the storage battery both end voltage of charged state, now commercially there is the design of a variety of charger, but a lot of design is in cost consideration, that designs is all very simple and crude, much all there is no voltage detecting and controling circuit, cause during charging and battery life is impacted, and there is potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of voltage detecting and controling circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of voltage detecting and controling circuit, comprises three terminal regulator U1, diode D1, time base chip U2, resistance R1, electric capacity C1, one-way SCR VS and potentiometer RP1, described diode D1 positive pole connects power supply VCC and diode D2 positive pole respectively, and diode D1 negative pole is contact resistance R1 and resistance R2, resistance R1 other end connecting luminous diode D4 negative pole respectively respectively, the A pole of one-way SCR VS and resistance R4, the light-emitting diode D4 positive pole contact resistance R2 other end, the resistance R4 other end connects the G pole of one-way SCR VS respectively, the K pole of resistance R5 and Shi Ji chip U2 pin 3, one-way SCR VS connects potentiometer RP1 one end respectively, potentiometer RP2 one end and storage battery E positive pole, storage battery E negative pole connects the potentiometer RP1 other end respectively, the potentiometer RP2 other end, the resistance R5 other end, time base chip U2 pin 1, diode D3 positive pole, electric capacity C2, three terminal regulator U1 earth terminal and electric capacity C1, the electric capacity C1 other end connects diode D2 negative pole and three terminal regulator U1 input respectively, and three terminal regulator U1 output connects the electric capacity C2 other end respectively, resistance R3, time base chip U2 pin 4 and Shi Ji chip U2 pin 8, the resistance R3 other end connect diode D3 negative pole and Shi Ji chip U2 pin 5 respectively, time base chip U2 pin 2 connect potentiometer RP2 slide plate, time base chip U2 pin 6 connect potentiometer RP1 slide plate.
As further program of the utility model: time described, base chip U2 adopts NE555.
As the utility model further scheme: described three terminal regulator U1 adopts 7805.
Compared with prior art, the beneficial effects of the utility model are: the utility model voltage detecting and controling circuit adopts NE555 to coordinate one-way SCR as controller, and circuit structure is simple, and very accurate to voltage detecting, volume is little, and cost is low.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of voltage detecting and controling circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of voltage detecting and controling circuit, comprises three terminal regulator U1, diode D1, time base chip U2, resistance R1, electric capacity C1, one-way SCR VS and potentiometer RP1, described diode D1 positive pole connects power supply VCC and diode D2 positive pole respectively, and diode D1 negative pole is contact resistance R1 and resistance R2, resistance R1 other end connecting luminous diode D4 negative pole respectively respectively, the A pole of one-way SCR VS and resistance R4, the light-emitting diode D4 positive pole contact resistance R2 other end, the resistance R4 other end connects the G pole of one-way SCR VS respectively, the K pole of resistance R5 and Shi Ji chip U2 pin 3, one-way SCR VS connects potentiometer RP1 one end respectively, potentiometer RP2 one end and storage battery E positive pole, storage battery E negative pole connects the potentiometer RP1 other end respectively, the potentiometer RP2 other end, the resistance R5 other end, time base chip U2 pin 1, diode D3 positive pole, electric capacity C2, three terminal regulator U1 earth terminal and electric capacity C1, the electric capacity C1 other end connects diode D2 negative pole and three terminal regulator U1 input respectively, and three terminal regulator U1 output connects the electric capacity C2 other end respectively, resistance R3, time base chip U2 pin 4 and Shi Ji chip U2 pin 8, the resistance R3 other end connect diode D3 negative pole and Shi Ji chip U2 pin 5 respectively, time base chip U2 pin 2 connect potentiometer RP2 slide plate, time base chip U2 pin 6 connect potentiometer RP1 slide plate, time described, base chip U2 adopts NE555, described three terminal regulator U1 adopts 7805.
Operation principle of the present utility model is: refer to Fig. 1, in the utility model, time base chip U1 as comparator work, when storage battery E undertension, time base chip U1 2 pin dividing potential drops lower than the half of 5 pin, time base chip U1 3 pin export high level, trigger VS conducting, charge through resistance R1 accumulators E, when cell voltage rises to the higher limit of RP2 setting, time base chip U1 upset, time base chip U1 3 pin output low levels, stop charging; Circuit still continues to detect storage battery E both end voltage, makes storage battery E be in sufficient state all the time.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (3)
1. a voltage detecting and controling circuit, comprises three terminal regulator U1, diode D1, time base chip U2, resistance R1, electric capacity C1, one-way SCR VS and potentiometer RP1, is characterized in that, described diode D1 positive pole connects power supply VCC and diode D2 positive pole respectively, and diode D1 negative pole is contact resistance R1 and resistance R2, resistance R1 other end connecting luminous diode D4 negative pole respectively respectively, the A pole of one-way SCR VS and resistance R4, the light-emitting diode D4 positive pole contact resistance R2 other end, the resistance R4 other end connects the G pole of one-way SCR VS respectively, the K pole of resistance R5 and Shi Ji chip U2 pin 3, one-way SCR VS connects potentiometer RP1 one end respectively, potentiometer RP2 one end and storage battery E positive pole, storage battery E negative pole connects the potentiometer RP1 other end respectively, the potentiometer RP2 other end, the resistance R5 other end, time base chip U2 pin 1, diode D3 positive pole, electric capacity C2, three terminal regulator U1 earth terminal and electric capacity C1, the electric capacity C1 other end connects diode D2 negative pole and three terminal regulator U1 input respectively, and three terminal regulator U1 output connects the electric capacity C2 other end respectively, resistance R3, time base chip U2 pin 4 and Shi Ji chip U2 pin 8, the resistance R3 other end connect diode D3 negative pole and Shi Ji chip U2 pin 5 respectively, time base chip U2 pin 2 connect potentiometer RP2 slide plate, time base chip U2 pin 6 connect potentiometer RP1 slide plate.
2. voltage detecting and controling circuit according to claim 1, is characterized in that, time described, base chip U2 adopts NE555.
3. voltage detecting and controling circuit according to claim 1, is characterized in that, described three terminal regulator U1 adopts 7805.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972063.3U CN205212413U (en) | 2015-12-01 | 2015-12-01 | Voltage detecting control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972063.3U CN205212413U (en) | 2015-12-01 | 2015-12-01 | Voltage detecting control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205212413U true CN205212413U (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520972063.3U Expired - Fee Related CN205212413U (en) | 2015-12-01 | 2015-12-01 | Voltage detecting control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205212413U (en) |
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2015
- 2015-12-01 CN CN201520972063.3U patent/CN205212413U/en not_active Expired - Fee Related
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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: 20160504 Termination date: 20161201 |