CN202759228U - An integral current output circuit equipped with a multi-series electrical core and capable of providing power locally - Google Patents
An integral current output circuit equipped with a multi-series electrical core and capable of providing power locally Download PDFInfo
- Publication number
- CN202759228U CN202759228U CN 201220476769 CN201220476769U CN202759228U CN 202759228 U CN202759228 U CN 202759228U CN 201220476769 CN201220476769 CN 201220476769 CN 201220476769 U CN201220476769 U CN 201220476769U CN 202759228 U CN202759228 U CN 202759228U
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- China
- Prior art keywords
- current output
- output circuit
- operational amplifier
- number battery
- battery core
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- Expired - Fee Related
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Abstract
Provided is an integral current output circuit equipped with a multi-series electrical core and capable of providing power locally. The integral current output circuit comprises a multi-series electrical core formed by multiple single electrical cores connected in series, an operational amplifier U1 performing voltage following, and a switching element controlling the integral current output. The integral current output circuit enables the multi-series electrical core to provide power locally and integral current output under an assigned voltage, resolves a problem that uneven loss of each single electrical core arises from a fact that part single electrical cores are selected to supply power when the multi-series electrical core provides power for a device with low withstand voltage value, maintains good consistency of the single electrical cores of the multi-series electrical core, guarantees the service life of the entire multi-series electrical core, and reduces probability of unable operation of a supporting facility.
Description
Technical field
The utility model relates to a kind of improvement technology of many string number battery core output circuits.
Background technology
The technology that adopts at present many string number battery cores to power is used more and more wider, because the withstand voltage of certain device is lower than the magnitude of voltage of overall battery core under some operating mode, so need to adopt local battery core Voltage-output to power or be with according to actual conditions carries, when only for input, power, power consumption can be ignored, can larger loss not arranged to battery core self yet, but after output current reaches some strength and long-time the use, because the difference of battery core usage degree, cause the unbalanced of battery core voltage, descend to useful life, had a strong impact on the normal use of battery core and auxiliary facility thereof.
The utility model content
In view of this, the technical problems to be solved in the utility model provides the overall current output circuit of the local voltage supply of a kind of many string number battery cores, is implemented in the many strings number battery core overall current output under the voltage of certain appointment.
Thus, the technical scheme that proposes of the utility model is as follows:
The overall current output circuit of the local voltage supply of a kind of many string number battery cores, described overall current output circuit comprises the many strings number battery core that is in series by a plurality of monomer battery cores, carry out the operational amplifier U1 of voltage follow and the switch element of control overall current output, be connected with resistance R 3 between the positive input of described operational amplifier U1 and the many string number battery cores, resistance R 3 one ends link to each other with the positive input of operational amplifier U1, resistance R 3 other ends are optionally with in many strings number battery core respectively to save the movable end that the positive pole of monomer battery core is connected, the reverse input end of operational amplifier U1 directly links to each other with the power input for the treatment of power supply device, the anodal B+ of the global voltage output of many string number battery cores links to each other with the output of operational amplifier U1 by resistance R 1, and the anodal B+ that the global voltage of number battery core of going here and there is exported more links to each other with the power input for the treatment of power supply device by switch element.
Wherein, described switch element is triode Q1, the base stage of triode Q1 links to each other with the output of operational amplifier U1 by resistance R 2, the collector electrode of triode Q1 directly links to each other with the positive pole that the global voltage of many strings number battery core is exported, and the emitter of triode Q1 directly links to each other with the power input for the treatment of power supply device.Or described switch element is relay.
The utlity model has following beneficial effect:
The overall current output circuit of the local voltage supply of a kind of many string number battery cores that the utility model provides, not only can give low withstand voltage device normal power supply, realize simultaneously how string number battery cores are carried out overall current output, other battery cores of loss ratio of avoiding occurring a few economize on electricity cores are large, namely guarantee the consistency of battery core loss, and then prolong the useful life of whole many string number battery cores.
Description of drawings
Fig. 1 is the control circuit figure of the utility model embodiment.
Embodiment
For ease of those skilled in the art's understanding, below in conjunction with specific embodiment and accompanying drawing the utility model is described in further detail.
As shown in Figure 1, the overall current output circuit of the local voltage supply of a kind of many string number battery cores of the utility model design, described overall current output circuit comprise the triode Q1 of the many strings number battery core that is in series by a plurality of monomer battery cores, the operational amplifier U1 that carries out voltage follow, the output of control overall current and resistance R 1, resistance R 2, resistance R 3.
The concrete connection of this overall current output circuit is as follows:
Be connected with resistance R 3 between the positive input of operational amplifier U1 and the many string number battery cores.Resistance R 3 one ends link to each other with the positive input of operational amplifier U1, and resistance R 3 other ends are to carry out the movable end that selectivity is connected with the positive pole of each monomer battery core in many strings number battery core.The reverse input end of operational amplifier U1 directly links to each other with the power input for the treatment of power supply device.The anodal B+ of the global voltage output of many string number battery cores links to each other with the output of operational amplifier U1 by resistance R 1.The positive pole of the global voltage output of many string number battery cores links to each other with the power input for the treatment of power supply device by triode Q1.The base stage of triode Q1 links to each other with the output of operational amplifier U1 by resistance R 2, the collector electrode of triode Q1 directly links to each other with the anodal B+ that the global voltage of many strings number battery core is exported, and the emitter of triode Q1 directly links to each other with the power input for the treatment of power supply device.
The function introduction of this overall current output circuit is as follows:
As shown in Figure 1, B in circuit (n) end optionally links to each other with the positive pole of monomer battery core of a joint in many strings number battery core, and BH holds and links to each other with the power input for the treatment of power supply device.
By the voltage follow effect of operational amplifier U1, so that the voltage of the voltage of BH end and B (n) end is consistent, be equivalent to the voltage of B (n) end is supplied with the power input for the treatment of power supply device, this has just realized the local voltage supply of many strings number battery core.
After operational amplifier U1 unlatching work, the anodal B+ of the global voltage output of many string number battery cores carries out electric current output by the power input that the triode Q1 with switching function treats power supply device in the circuit, the electric current I 2 of the BH that flows through like this end is the anodal B+ output from the global voltage output of many strings number battery core, and the electric current I 1 of the B that flows through (n) end can be ignored, and this has just realized the output of many strings number battery core overall current.
Wherein, triode Q1 is replaceable for other semiconductor device, switch element, relay with switching function etc. are connected in the circuit, finishes the function of level conversion.
The utility model has designed the overall current output circuit of the local voltage supply of a kind of many string number battery cores, cooperation by operational amplifier and switch element, realized that many strings number battery core under given voltage carries out local voltage supply and overall current output, solved when many string number battery cores are powered to the low device of withstand voltage because the problem of the core loss inequality of respectively economizing on electricity that the power supply of selected part battery core causes, can keep good consistency so that go here and there the core that respectively economizes on electricity of number battery core more, guarantee the useful life of whole many string number battery cores, also reduced the probability that auxiliary facility can't be worked.
It more than is some specific implementation of the present utility model; it describes comparatively concrete and detailed; but can not therefore be interpreted as the restriction to the utility model claim; should be noted that; for the person of ordinary skill of the art; without departing from the concept of the premise utility, these apparent replacement forms all belong to protection range of the present utility model.
Claims (3)
1. the overall current output circuit of the local voltage supply of the number battery core of string more than a kind, it is characterized in that, described overall current output circuit comprises the many strings number battery core that is in series by a plurality of monomer battery cores, carry out the operational amplifier U1 of voltage follow and the switch element of control overall current output, be connected with resistance R 3 between the positive input of described operational amplifier U1 and the many string number battery cores, resistance R 3 one ends link to each other with the positive input of operational amplifier U1, resistance R 3 other ends are optionally with in many strings number battery core respectively to save the movable end that the positive pole of monomer battery core is connected, the reverse input end of operational amplifier U1 directly links to each other with the power input for the treatment of power supply device, the anodal B+ of the global voltage output of many string number battery cores links to each other with the output of operational amplifier U1 by resistance R 1, and the anodal B+ that the global voltage of number battery core of going here and there is exported more links to each other with the power input for the treatment of power supply device by switch element.
2. the overall current output circuit of the local voltage supply of many string number battery cores according to claim 1, it is characterized in that, described switch element is triode Q1, the base stage of triode Q1 links to each other with the output of operational amplifier U1 by resistance R 2, the collector electrode of triode Q1 directly links to each other with the positive pole that the global voltage of many strings number battery core is exported, and the emitter of triode Q1 directly links to each other with the power input for the treatment of power supply device.
3. the overall current output circuit of the local voltage supply of many string number battery cores according to claim 1 is characterized in that described switch element is relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476769 CN202759228U (en) | 2012-09-19 | 2012-09-19 | An integral current output circuit equipped with a multi-series electrical core and capable of providing power locally |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220476769 CN202759228U (en) | 2012-09-19 | 2012-09-19 | An integral current output circuit equipped with a multi-series electrical core and capable of providing power locally |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202759228U true CN202759228U (en) | 2013-02-27 |
Family
ID=47738389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220476769 Expired - Fee Related CN202759228U (en) | 2012-09-19 | 2012-09-19 | An integral current output circuit equipped with a multi-series electrical core and capable of providing power locally |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202759228U (en) |
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2012
- 2012-09-19 CN CN 201220476769 patent/CN202759228U/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 |
Granted publication date: 20130227 Termination date: 20210919 |
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| CF01 | Termination of patent right due to non-payment of annual fee |