CN201886137U - Detecting and alarming circuit of charging voltage - Google Patents
Detecting and alarming circuit of charging voltage Download PDFInfo
- Publication number
- CN201886137U CN201886137U CN2010206498925U CN201020649892U CN201886137U CN 201886137 U CN201886137 U CN 201886137U CN 2010206498925 U CN2010206498925 U CN 2010206498925U CN 201020649892 U CN201020649892 U CN 201020649892U CN 201886137 U CN201886137 U CN 201886137U
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- resistance
- operational amplifier
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- warning circuit
- mimic channel
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Abstract
The utility model discloses a detecting and alarming circuit of charging voltage, comprising a four-operational amplifier. The input end of the four-operational amplifier is connected with a storage battery analog circuit and a super capacitor analog circuit, the output end of the four-operational amplifier is connected with an alarming circuit, and a direct current stabilized power supply provides power for the storage battery analog circuit and the super capacitor analog circuit. The four-operational amplifier comprises four voltage comparators, wherein the output of the storage battery analog circuit and the output of the super capacitor analog circuit are respectively connected with the inverted input end and the non-inverting input end of the same one of the four voltage comparators. The output end of the four-operational amplifier is connected with the alarming circuit. When a failure occurs during the charging of a battery pack, the detecting and alarming circuit gives an alarm in real time so that failure is avoided, and the security of the circuit operation is improved.
Description
Technical field
The utility model relates to a kind of electronic circuit, relates in particular to a kind of charging voltage and detects and warning circuit.
Background technology
Secondary cell commonly used all has higher energy, but power is lower, and battery and reduces battery serviceable life because the inner heat that the chemical reaction during big pulse current work causes heats up, even causes danger.
Capacity of super capacitor is more much bigger than common capacitor, and externally performance is identical with battery, is also referred to as " capacitor battery ".Have very high power density, can the high impulse high current charge-discharge, be a kind of desirable vehicle start and the accessory power supply when quickening, and can when car brakeing, carry out energy recovery efficiently.For example, the hot spot technology New-energy electric vehicle of present research, still, PHEV is instantaneous power input and output meeting generation contradiction when brake, acceleration and climbing, can cause the deficiency of battery in the instantaneous power input and output.
The driven by power of novel " accumulator---electric capacity " PHEV is made up of accumulator and ultracapacitor two parts.In process to batteries charging, only finish and charge in batteries accident when stopping when ultracapacitor charging, ultracapacitor can form fault to the accumulator reverse charging.
In the application of ultracapacitor, more to characteristic research its ultimate principle and technology, chemistry, and the introduction of its operating circuit is still lacked.How should make good use of ultracapacitor, to improve the performance and the new circuit of research and development of electronic circuit, be a heat subject of electric and electronic technical field.
Summary of the invention
The purpose of this utility model is to provide a kind of charging voltage monitoring and warning circuit, and Realtime Alerts when this circuit breaks down in the batteries charging link avoids fault to take place, and has improved the security of circuit operation.
The technical scheme that realizes above-mentioned purpose is: a kind of charging voltage detects and warning circuit, wherein, comprise a four-operational amplifier, the input end of this four-operational amplifier is connected with an accumulator mimic channel and a ultracapacitor mimic channel, output terminal is connected with a warning circuit, accumulator mimic channel and ultracapacitor mimic channel are powered by D.C. regulated power supply, wherein:
Include four voltage comparators in the described four-operational amplifier, the output of described accumulator mimic channel and described ultracapacitor mimic channel respectively with four voltage comparators in the inverting input of same voltage comparator link to each other with in-phase input end;
The output terminal of described four-operational amplifier links to each other with described warning circuit.
Above-mentioned charging voltage detects and warning circuit, wherein, described accumulator mimic channel comprises that an end links to each other with described D.C. regulated power supply, first resistance R 1 of the other end by one second resistance R, 2 ground connection, and the end that this first resistance R 1 is connected with described second resistance R 2 also links to each other by the inverting input of the voltage comparator in the one first slide resistor Rb1 that connects and one the 3rd resistance R 3 and the described four-operational amplifier.
Above-mentioned charging voltage detects and warning circuit, wherein, described ultracapacitor mimic channel comprises that an end links to each other with described D.C. regulated power supply, the four resistance F4 of the other end by one the 5th resistance R, 5 ground connection, and the in-phase input end of the voltage comparator that the end that the 4th resistance R 4 is connected with described the 5th resistance R 5 also links to each other with described accumulator mimic channel in one second slide resistor Rb2 by series connection and the 6th resistance R 6 and the described four-operational amplifier is continuous.
Above-mentioned charging voltage detects and warning circuit, wherein, described warning circuit comprises a transistor NPN, the base stage of this transistor NPN links to each other with the output terminal of described four-operational amplifier by one the 9th resistance R 9, and by one the 8th resistance R, 8 ground connection, the grounded emitter of transistor NPN, collector links to each other with D.C. regulated power supply by a relay, and this relay links to each other with one first K switch 1.
Above-mentioned charging voltage detects and warning circuit, and wherein, described first K switch 1 links to each other with light emitting diode.
Above-mentioned charging voltage detects and warning circuit, wherein, the voltage comparator that is connected with warning circuit in the output terminal of the voltage comparator that links to each other with described accumulator mimic channel and ultracapacitor mimic channel and the described four-operational amplifier is continuous and constitute an in-phase voltage follower.
Above-mentioned charging voltage detects and warning circuit, and wherein, described D.C. regulated power supply is returned described four-operational amplifier power supply.
The beneficial effects of the utility model are: the utility model comes imitated storage battery and super capacitor respectively by accumulator mimic channel and ultracapacitor mimic channel, this utility model can be used as the power supply of electrical source of power, and can report to the police automatically, it is effective ingredient of hybrid power system, in addition, by the in-phase voltage follower that constitutes, can improve the carrying load ability of detection alarm circuit, stablized output voltage.
Description of drawings
Fig. 1 is the circuit diagram of charging voltage detection of the present utility model and warning circuit;
Fig. 2 is the circuit pinouts of four-operational amplifier of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1, there is shown a kind of charging voltage of the present utility model detects and warning circuit, wherein, comprise a four-operational amplifier 1, the input end of this four-operational amplifier 1 is connected with an accumulator mimic channel and a ultracapacitor mimic channel, output terminal is connected with a warning circuit 3, and accumulator mimic channel and ultracapacitor mimic channel are by D.C. regulated power supply VIN24 power supply, wherein:
Include four voltage comparators in the four-operational amplifier 1, see also Fig. 2, be respectively first voltage comparator 11, second voltage comparator 12, tertiary voltage comparer 13 and the 4th voltage comparator 14, the model of four-operational amplifier 1 is LM324, its pin 1 to pin 3 is respectively output terminal, inverting input and the in-phase input end of first voltage comparator 11, pin 8 to pin 10 is respectively output terminal, inverting input and the in-phase input end of second voltage comparator 12, pin 4 meets D.C. regulated power supply VIN24, pin 11 ground connection.
The output of accumulator mimic channel and ultracapacitor mimic channel respectively with four voltage comparators in the inverting input of first voltage comparator 11 link to each other with in-phase input end; The output terminal of four-operational amplifier 1 links to each other with warning circuit 3.
The accumulator mimic channel comprises that an end links to each other with D.C. regulated power supply VIN24, the other end passes through first resistance R 1 of one second resistance R, 2 ground connection, and the end that this first resistance R 1 is connected with second resistance R 2 also links to each other with the inverting input of first voltage comparator 11 with one the 3rd resistance R 3 by one first slide resistor Rb1 of series connection.
The ultracapacitor mimic channel comprises that an end links to each other with D.C. regulated power supply VIN24, the other end passes through the 4th resistance F4 of one the 5th resistance R, 5 ground connection, and the end that the 4th resistance R 4 is connected with the 5th resistance R 5 also links to each other with the in-phase input end of first voltage comparator 11 with the 6th resistance R 6 by one second slide resistor Rb2 of series connection.
In the present embodiment, the output terminal and the inverting input of second voltage comparator 12 in warning circuit 3 and the four-operational amplifier 1 link to each other, promptly link to each other with pin 9 with pin 8, warning circuit 3 comprises a transistor NPN, the base stage of this transistor NPN links to each other with the output terminal of four-operational amplifier 1 by one the 9th resistance R 9, and by one the 8th resistance R, 8 ground connection, the grounded emitter of transistor NPN, collector links to each other with D.C. regulated power supply VIN24 by a relay 2, this relay 2 links to each other with one first K switch 1, first K switch 1 can link to each other with the light emitting diode (not shown), also can with other panalarms for example alarm etc. link to each other, when relay 2 electric after, even first K switch, 1 closure, then connect light emitting diode and/or other alarms that it connected.
The output terminal of first voltage comparator 11 is a pin 1 with in-phase input end in second voltage comparator 12 is that pin 10 links to each other and constitutes an in-phase voltage follower.
It is because they have the following advantages that the utility model adopts the circuit of imitated storage battery and simulation ultracapacitor:
1, ultracapacitor is a kind of energy accumulator between accumulator and capacitor, has very high power density, can the high impulse high current charge-discharge, be a kind of desirable vehicle start and the accessory power supply when quickening, and can when car brakeing, carry out energy recovery efficiently.
2, the normal working voltage of accumulator is direct current 24V, can not drive when being lower than 18V, and the energy resource supply in electric motor car starting back smooth-ride stage is provided, and therefore D.C. regulated power supply of the present utility model is 24V.
3, ultracapacitor can be used as the electric power system of electrical source of power with after battery pack is in parallel.
The first slide resistor Rb1 and the second slide resistor Rb2 are the slide resistors that can change these two groups of voltage swings.Only finish and accumulator mimic channel when not charging as yet when ultracapacitor mimic channel charging, when promptly pin 3 was greater than pin 2, the output terminal of first voltage comparator 11 was pin 1 an output high level 1.
During first voltage comparator, 11 output high level 1, transistor NPN conducting, relay 2 gets electric, and light emitting diode is lighted, and alarm pipes.During output low level 0, transistor NPN ends, and light emitting diode does not work, and alarm is not worked.
Realtime Alerts when the utility model breaks down in the charging link avoids fault to take place.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation form, all drop on the protection domain of the utility model requirement.
Claims (7)
1. a charging voltage detects and warning circuit, it is characterized in that, comprise a four-operational amplifier, the input end of this four-operational amplifier is connected with an accumulator mimic channel and a ultracapacitor mimic channel, output terminal is connected with a warning circuit, accumulator mimic channel and ultracapacitor mimic channel are powered by D.C. regulated power supply, wherein:
Include four voltage comparators in the described four-operational amplifier, the output of described accumulator mimic channel and described ultracapacitor mimic channel respectively with four voltage comparators in the inverting input of same voltage comparator link to each other with in-phase input end;
The output terminal of described four-operational amplifier links to each other with described warning circuit.
2. charging voltage according to claim 1 detects and warning circuit, it is characterized in that, described accumulator mimic channel comprises that an end links to each other with described D.C. regulated power supply, first resistance R 1 of the other end by one second resistance R, 2 ground connection, and the end that this first resistance R 1 is connected with described second resistance R 2 also links to each other by the inverting input of the voltage comparator in the one first slide resistor Rb1 that connects and one the 3rd resistance R 3 and the described four-operational amplifier.
3. charging voltage according to claim 1 and 2 detects and warning circuit, it is characterized in that, described ultracapacitor mimic channel comprises that an end links to each other with described D.C. regulated power supply, the four resistance F4 of the other end by one the 5th resistance R, 5 ground connection, and the in-phase input end of the voltage comparator that the end that the 4th resistance R 4 is connected with described the 5th resistance R 5 also links to each other with described accumulator mimic channel in one second slide resistor Rb2 by series connection and the 6th resistance R 6 and the described four-operational amplifier is continuous.
4. charging voltage according to claim 1 detects and warning circuit, it is characterized in that, described warning circuit comprises a transistor NPN, the base stage of this transistor NPN links to each other with the output terminal of described four-operational amplifier by one the 9th resistance R 9, and by one the 8th resistance R, 8 ground connection, the grounded emitter of transistor NPN, collector links to each other with D.C. regulated power supply by a relay, and this relay links to each other with one first K switch 1.
5. charging voltage according to claim 4 detects and warning circuit, it is characterized in that described first K switch 1 links to each other with light emitting diode.
6. charging voltage according to claim 1 detects and warning circuit, it is characterized in that the voltage comparator that is connected with warning circuit in the output terminal of the voltage comparator that links to each other with described accumulator mimic channel and ultracapacitor mimic channel and the described four-operational amplifier is continuous and constitute an in-phase voltage follower.
7. charging voltage according to claim 1 detects and warning circuit, it is characterized in that, described D.C. regulated power supply is returned described four-operational amplifier power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206498925U CN201886137U (en) | 2010-12-09 | 2010-12-09 | Detecting and alarming circuit of charging voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206498925U CN201886137U (en) | 2010-12-09 | 2010-12-09 | Detecting and alarming circuit of charging voltage |
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| Publication Number | Publication Date |
|---|---|
| CN201886137U true CN201886137U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206498925U Expired - Fee Related CN201886137U (en) | 2010-12-09 | 2010-12-09 | Detecting and alarming circuit of charging voltage |
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| CN (1) | CN201886137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065429A (en) * | 2012-12-13 | 2013-04-24 | 广东电网公司电力调度控制中心 | Charging alarming method and alarming device of automatic throw-in equipment of emergency power supply |
| CN104459274A (en) * | 2014-11-19 | 2015-03-25 | 中国计量科学研究院 | Measuring method for voltage coefficient of high voltage standard capacitor |
-
2010
- 2010-12-09 CN CN2010206498925U patent/CN201886137U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065429A (en) * | 2012-12-13 | 2013-04-24 | 广东电网公司电力调度控制中心 | Charging alarming method and alarming device of automatic throw-in equipment of emergency power supply |
| CN103065429B (en) * | 2012-12-13 | 2015-05-13 | 广东电网公司电力调度控制中心 | Charging alarming method and alarming device of automatic throw-in equipment of emergency power supply |
| CN104459274A (en) * | 2014-11-19 | 2015-03-25 | 中国计量科学研究院 | Measuring method for voltage coefficient of high voltage standard capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20111209 |