CN204758773U - Simulation battery circuit and charging circuit detection circuitry - Google Patents
Simulation battery circuit and charging circuit detection circuitry Download PDFInfo
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- CN204758773U CN204758773U CN201520511939.4U CN201520511939U CN204758773U CN 204758773 U CN204758773 U CN 204758773U CN 201520511939 U CN201520511939 U CN 201520511939U CN 204758773 U CN204758773 U CN 204758773U
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- internal resistance
- charging circuit
- direct supply
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Abstract
The utility model discloses a simulation battery circuit and charging circuit detection circuitry, shown simulation battery circuit include internal resistance of cell equivalent circuit and DC power supply, DC power supply's output with internal resistance of cell equivalent circuit connects charging circuit after being parallelly connected, DC power supply's positive terminal is still established ties to have and is used for preventing that the foreign current from flowing into extremely DC power supply prevents anti - circuit. The simulation battery circuit of this embodiment is used for equivalent internal resistance of cell through adopting internal resistance of cell equivalent circuit, adopts DC power supply output DC voltage equivalence battery output voltage for simulation battery circuit, will simulate most likely that battery circuit for example is applied to that charging circuit detects or other electric tests to the electronic product in, need not to use the entity battery, a series of problems that can avoid adopting the battery to bring, circuit structure is simple simultaneously, test cost is low.
Description
Technical field
The utility model relates to a kind of simulated battery circuit and charging circuit testing circuit.
Background technology
Be used widely in each electronic product of current rechargeable battery, to having in the production testing process of electronic product of charge function, wherein one is detect the charging circuit performance of electronic product, current detection mode intactly detects battery from the characteristic being vented to charging circuit the whole process that is full of, needs take a long time, cause detection efficiency low, and this kind of detection mode needs reality to carry out repeated charge to battery, easily cause shorter battery life, internal resistance increases, thus affects test result.
Except adopting except real battery tests, also have the specialized simulation battery meter that laboratory is conventional, though do not have the above drawback of real battery, cost is high usually, and production test finished product can be caused to rise.
Summary of the invention
Existing charging circuit testing circuit employing actual battery detection efficiency is low, accuracy of detection is low in order to solve for the utility model, and adopts the technical matters that specialized simulation battery meter cost is high, proposes a kind of simulated battery circuit, can solve the problem simultaneously.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of simulated battery circuit, comprise internal resistance of cell equivalent electrical circuit and direct supply, the output terminal of described direct supply is connected charging circuit with after the parallel connection of described internal resistance of cell equivalent electrical circuit, and the positive terminal of described direct supply is also in series with the anti-circnit NOT for preventing foreign current from flowing into described direct supply.
Further, described internal resistance of cell equivalent electrical circuit is a high-power resistance.
Another step, described anti-circnit NOT is a counnter attack diode, and the positive pole of described counnter attack diode is connected with the positive terminal of described direct supply.
Further, the negative pole end ground connection of described direct supply.
Based on above-mentioned simulated battery circuit, the utility model proposes a kind of charging circuit testing circuit simultaneously, comprise the simulated battery circuit above described in any one, between described simulated battery circuit and charging circuit, be connected with the current sampling circuit for transmission current of sampling.
Compared with prior art, advantage of the present utility model and good effect are: simulated battery circuit of the present utility model, battery eliminator internal resistance is used for by adopting internal resistance of cell equivalent electrical circuit, direct supply is adopted to export DC voltage battery eliminator output voltage, for simulated battery circuit, this simulated battery circuit application to be detected or other are in the electric test of electronic product in such as charging circuit, without the need to using entity battery, the series of problems adopting battery to bring can be avoided, circuit structure is simple simultaneously, and testing cost is low.
After reading the detailed description of the utility model embodiment by reference to the accompanying drawings, other features of the present utility model and advantage will become clearly.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of embodiment functional-block diagram of the charging circuit testing circuit that the utility model proposes;
Fig. 2 is a kind of embodiment circuit theory diagrams of the charging circuit testing circuit that the utility model proposes.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one, for charging circuit testing circuit in the present embodiment, this charging circuit testing circuit have employed simulated battery circuit, describe formation and the principle of work of simulated battery circuit and charging circuit testing circuit in detail, be illustrated in figure 1 the functional-block diagram of charging circuit testing circuit, comprise charging circuit, described charging circuit is arranged on the mainboard of electronic product, described charging circuit is connected with simulated battery circuit, current sampling circuit is connected with between charging circuit and simulated battery circuit, for to the transmission current between charging circuit and simulated battery circuit, wherein, described simulated battery circuit comprises internal resistance of cell equivalent electrical circuit and direct supply, the output terminal of described direct supply is connected charging circuit with after the parallel connection of described internal resistance of cell equivalent electrical circuit, the positive terminal of described direct supply is also in series with the anti-circnit NOT for preventing foreign current from flowing into described direct supply.The principle of work of this charging circuit testing circuit is: when testing the discharge current of charging circuit, direct supply exports required voltage, be equivalent to the function of battery, wherein small part energy ezpenditure is on internal resistance of cell equivalent electrical circuit, other energy are that device on the mainboard of electronic product is powered by charging circuit, now current sampling circuit is by the electric current between measure analog battery circuit and charging circuit, being discharge current, analyzing the performance of charging circuit under battery is main board power supply state for detecting.When the charging current of charging circuit is tested, direct supply is exported and is adjusted to different magnitude of voltage, be equivalent to the battery under underfill state, its charging current mainly consumes on internal resistance of cell equivalent electrical circuit, by arranging anti-circnit NOT, pour in down a chimney in direct supply for preventing the charging current coming from charging circuit, now, current sampling circuit is by detecting the electric current between simulated battery circuit and charging circuit, be charging current, for detecting, to analyze charging circuit be performance under battery charging state.The simulated battery circuit of the present embodiment, battery eliminator internal resistance is used for by adopting internal resistance of cell equivalent electrical circuit, direct supply is adopted to export DC voltage battery eliminator output voltage, for simulated battery circuit, this simulated battery circuit application being detected or other are in the electric test of electronic product in such as charging circuit, without the need to using entity battery, the series of problems adopting battery to bring can be avoided, circuit structure is simple simultaneously, and testing cost is low.
Preferably in the present embodiment, as shown in Figure 2, in order to simplify circuit structure, described internal resistance of cell equivalent electrical circuit can adopt a high-power resistance R1 to realize, for simulated battery internal resistance.Described anti-circnit NOT can adopt a counnter attack diode D1 to realize, and the positive pole of described counnter attack diode D1 is connected with the positive terminal of described direct supply, and for preventing when charging, the electric current of charging circuit pours in down a chimney in direct supply.In addition, the negative pole end ground connection of described direct supply, forms complete current return.
Certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (5)
1. a simulated battery circuit, it is characterized in that: comprise internal resistance of cell equivalent electrical circuit and direct supply, the output terminal of described direct supply is connected charging circuit with after the parallel connection of described internal resistance of cell equivalent electrical circuit, and the positive terminal of described direct supply is also in series with the anti-circnit NOT for preventing foreign current from flowing into described direct supply.
2. simulated battery circuit according to claim 1, is characterized in that: described internal resistance of cell equivalent electrical circuit is a high-power resistance.
3. simulated battery circuit according to claim 1 and 2, is characterized in that: described anti-circnit NOT is a counnter attack diode, and the positive pole of described counnter attack diode is connected with the positive terminal of described direct supply.
4. simulated battery circuit according to claim 1 and 2, is characterized in that: the negative pole end ground connection of described direct supply.
5. a charging circuit testing circuit, is characterized in that, comprises the simulated battery circuit described in any one of claim 1-4, is connected with the current sampling circuit for transmission current of sampling between described simulated battery circuit and charging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520511939.4U CN204758773U (en) | 2015-07-15 | 2015-07-15 | Simulation battery circuit and charging circuit detection circuitry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520511939.4U CN204758773U (en) | 2015-07-15 | 2015-07-15 | Simulation battery circuit and charging circuit detection circuitry |
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| CN204758773U true CN204758773U (en) | 2015-11-11 |
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| CN201520511939.4U Active CN204758773U (en) | 2015-07-15 | 2015-07-15 | Simulation battery circuit and charging circuit detection circuitry |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403825A (en) * | 2015-12-31 | 2016-03-16 | 福建联迪商用设备有限公司 | Rechargeable battery circuit intelligent test management system and method thereof |
| CN107561344A (en) * | 2017-10-14 | 2018-01-09 | 歌尔股份有限公司 | A kind of detection method of battery charging panel charging current |
| CN108710044A (en) * | 2018-07-02 | 2018-10-26 | 科世达（上海）管理有限公司 | A kind of test system and method for Vehicular charger |
| CN112965456A (en) * | 2021-01-18 | 2021-06-15 | 北京航天自动控制研究所 | Ground center computing system for space-based weapon test |
-
2015
- 2015-07-15 CN CN201520511939.4U patent/CN204758773U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403825A (en) * | 2015-12-31 | 2016-03-16 | 福建联迪商用设备有限公司 | Rechargeable battery circuit intelligent test management system and method thereof |
| CN105403825B (en) * | 2015-12-31 | 2018-04-10 | 福建联迪商用设备有限公司 | A kind of rechargeable battery charging circuit intelligence test management system and its method |
| CN107561344A (en) * | 2017-10-14 | 2018-01-09 | 歌尔股份有限公司 | A kind of detection method of battery charging panel charging current |
| CN108710044A (en) * | 2018-07-02 | 2018-10-26 | 科世达（上海）管理有限公司 | A kind of test system and method for Vehicular charger |
| CN112965456A (en) * | 2021-01-18 | 2021-06-15 | 北京航天自动控制研究所 | Ground center computing system for space-based weapon test |
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