CN202260442U - Formation equipment cell anti-reverse charging protection circuit - Google Patents
Formation equipment cell anti-reverse charging protection circuit Download PDFInfo
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- CN202260442U CN202260442U CN201120314718XU CN201120314718U CN202260442U CN 202260442 U CN202260442 U CN 202260442U CN 201120314718X U CN201120314718X U CN 201120314718XU CN 201120314718 U CN201120314718 U CN 201120314718U CN 202260442 U CN202260442 U CN 202260442U
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Abstract
The utility model relates to a formation equipment cell anti-reverse charging protection circuit, comprising a master control CPU and a cell detection circuit in connection with the master control CPU. The cell detection circuit comprises a charging circuit and a discharging circuit, a connecting part of which is provided with a cell detection terminal in connection with an anode of a cell; the discharging circuit comprises a triode, diodes and a capacitor; the cell detection terminal is in connection with a triode collector electrode which is in connection with a triode base electrode through the capacitor; a triode emitter electrode is in connection with the ground through a diode and the triode emitter electrode is in connection with an anode of the diode; a cathode of the diode is in connection with the ground; the triode base electrode is in connection with the master control CPU. According to the utility model, the discharging circuit of the cell detection circuit is in series connection with two diodes, which can avoid the case of abnormal discharge caused by cell reversal connection, minimize the probability of cell damage caused by reversal connection and raise detection effects of formation equipment.
Description
Technical field
The utility model relates to battery and changes into the detection technique field, relates in particular to the counnter attack of a kind of formation device battery and fills protective circuit.
Background technology
Electronic devices and components comprise various storage batterys in operate as normal often owing to making reason such as latent defect cause components and parts to lose efficacy having influence on the reliability of complete machine; Therefore; Electronic devices and components all will carry out ageing screening, detected electrons failure of elements rate before dispatching from the factory.The battery formation device is the detection to battery secondary current charge and discharge process; It is a kind of method that detects the battery failure rate; The performance of battery has very confidential relation with voltage, the electric current of battery; The unbalanced of cell voltage, electric current is the omen of battery failures, and the evaluation of battery performance is had its important meaning.
When battery changes into detection, generally battery plus-negative plate is connected two test sides of testing circuit, through the test side battery is carried out secondary current and discharge and recharge.Because two test sides of existing formation device testing circuit are not provided with sign; The formation device testing circuit does not have the warning of battery reversal connection yet; In testing process, be not easy to find the phenomenon of battery reversal connection; If operating personnel's operate miss with the battery reversal connection, causes the battery paradoxical discharge easily, cause battery to damage.
Summary of the invention
The utility model technical problem to be solved is the problems referred to above that exist to existing battery formation device, provides a kind of and has had the prompting counnter attack and fill the formation device battery counnter attack of function and fill protective circuit.
For addressing the above problem, the technical scheme of the utility model is:
Protective circuit is filled in the counnter attack of a kind of formation device battery, comprises master cpu and the battery detection circuit that links to each other with master cpu, and battery detection circuit comprises charging circuit and discharge circuit; The junction of charging circuit and discharge circuit is provided with a battery detecting end, and the battery detecting end links to each other with the positive pole of battery, and said discharge circuit comprises triode, diode and electric capacity; Said battery detecting end links to each other with transistor collector; Transistor base links to each other with collector electrode through electric capacity, and transistor emitter links to each other with ground through diode, and transistor emitter links to each other with diode cathode; Diode cathode ground connection, said transistor base links to each other with master cpu.
Preferably, be parallel with second diode of conducting in the same way between said diode cathode and the negative pole.
Preferably, said diode is a Schottky diode.
Preferably, said discharge circuit also comprises resistance, and resistance is connected between transistor base and the master cpu.
Preferably; Said charging circuit comprises second triode, second electric capacity and electrochemical capacitor; Said second transistor collector links to each other with ground through electrochemical capacitor, and collector electrode is provided with the power supply port, is parallel with second electric capacity between said second transistor collector and second transistor base; Second transistor emitter links to each other with the battery detecting end, and said second transistor base links to each other with master cpu.
Protective circuit is filled in the formation device battery counnter attack of the utility model; Two diodes on the discharge circuit of battery detection circuit, have been connected in series; Produce the situation of paradoxical discharge when having avoided the battery reversal connection, reduced the probability that causes battery to damage because of the battery reversal connection, improved the detection effect of formation device.
Description of drawings
Fig. 1 is the circuit connection diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment further explain the utility model, but the protection range of the utility model is not limited to this.
With reference to Fig. 1; Protective circuit is filled in the formation device battery counnter attack of the utility model; Comprise master cpu and the battery detection circuit that links to each other with master cpu, battery detection circuit comprises charging circuit and discharge circuit, and the junction of charging circuit and discharge circuit is provided with a battery detecting end a; Battery detecting end a is used for linking to each other with the positive pole of battery, and the negative pole of battery links to each other with ground.
Said discharge circuit comprises triode Q1, diode D1, the second diode D2, resistance R and capacitor C 1.The base stage of said triode Q1 links to each other with master cpu, and resistance R is connected between the base stage and master cpu of triode Q1.The collector electrode of triode Q1 links to each other with battery detecting end a, and the base stage of triode Q1 links to each other with collector electrode through capacitor C 1; The emitter of triode Q1 links to each other with ground through diode D1; The emitter of triode Q1 links to each other with the positive pole 1 of diode D1; Negative pole 2 ground connection of diode D1 are parallel with the second diode D2 of conducting in the same way between the positive pole 1 of diode D1 and the negative pole 2, the positive pole 1 of the second diode D2 links to each other with the positive pole 1 of diode D1; The negative pole 2 of the second diode D2 links to each other with the negative pole 2 of diode D1, and said diode D1, the second diode D2 are Schottky diode.
Said charging circuit comprises the second triode Q2, second capacitor C 2 and electrochemical capacitor C3.The collector electrode of the said second triode Q2 links to each other with ground through electrochemical capacitor C3; Collector electrode is provided with power supply port b; Be parallel with second capacitor C 2 between the base stage of the collector electrode of the second triode Q2 and the second triode Q2; The emitter of the second triode Q2 links to each other with battery detecting end a, and the base stage of the second triode Q2 links to each other with master cpu.
Battery is connected in parallel between battery detecting end a and the ground, carries out secondary current and discharges and recharges.The junction of the second triode Q2 base stage and master cpu is labeled as the c control end in the accompanying drawings, and the junction of resistance R and master cpu is labeled as the d control end in the accompanying drawings, and c, d are two control ends of master cpu.When the setting battery was in charged state, master cpu control c control end made the second triode Q2 conducting, and battery gets into charged state; When the setting battery was in discharge condition, master cpu control d control end made triode Q1 conducting, and battery gets into discharge condition; When the battery reversal connection, oppositely to end by diode D1, the second diode D2, the loop is obstructed.
Claims (5)
1. protective circuit is filled in formation device battery counnter attack, comprises master cpu and the battery detection circuit that links to each other with master cpu, and battery detection circuit comprises charging circuit and discharge circuit; The junction of charging circuit and discharge circuit is provided with a battery detecting end, and the battery detecting end links to each other with the positive pole of battery, it is characterized in that; Said discharge circuit comprises triode, diode and electric capacity, and said battery detecting end links to each other with transistor collector, and transistor base links to each other with collector electrode through electric capacity; Transistor emitter links to each other with ground through diode; Transistor emitter links to each other with diode cathode, diode cathode ground connection, and said transistor base links to each other with master cpu.
2. protective circuit is filled in formation device battery according to claim 1 counnter attack, it is characterized in that, is parallel with second diode of conducting in the same way between said diode cathode and the negative pole.
3. protective circuit is filled in formation device battery according to claim 1 and 2 counnter attack, it is characterized in that, said diode is a Schottky diode.
4. protective circuit is filled in formation device battery according to claim 1 counnter attack, it is characterized in that, said discharge circuit also comprises resistance, and resistance is connected between transistor base and the master cpu.
5. protective circuit is filled in formation device battery according to claim 1 counnter attack; It is characterized in that said charging circuit comprises second triode, second electric capacity and electrochemical capacitor, said second transistor collector links to each other with ground through electrochemical capacitor; Collector electrode is provided with the power supply port; Be parallel with second electric capacity between said second transistor collector and second transistor base, second transistor emitter links to each other with the battery detecting end, and said second transistor base links to each other with master cpu.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120314718XU CN202260442U (en) | 2011-08-24 | 2011-08-24 | Formation equipment cell anti-reverse charging protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120314718XU CN202260442U (en) | 2011-08-24 | 2011-08-24 | Formation equipment cell anti-reverse charging protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260442U true CN202260442U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120314718XU Expired - Fee Related CN202260442U (en) | 2011-08-24 | 2011-08-24 | Formation equipment cell anti-reverse charging protection circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN202260442U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104038244A (en) * | 2014-06-12 | 2014-09-10 | 四川联友电讯技术有限公司 | Mobile base station transceiver |
-
2011
- 2011-08-24 CN CN201120314718XU patent/CN202260442U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104038244A (en) * | 2014-06-12 | 2014-09-10 | 四川联友电讯技术有限公司 | Mobile base station transceiver |
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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: 20120530 Termination date: 20140824 |
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| EXPY | Termination of patent right or utility model |