CN113206524B - Ia-level intrinsic safety battery charging voltage feedback circuit - Google Patents
Ia-level intrinsic safety battery charging voltage feedback circuit Download PDFInfo
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- CN113206524B CN113206524B CN202110480821.XA CN202110480821A CN113206524B CN 113206524 B CN113206524 B CN 113206524B CN 202110480821 A CN202110480821 A CN 202110480821A CN 113206524 B CN113206524 B CN 113206524B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides an ia-level intrinsic safety battery charging voltage feedback circuit, which comprises: one end of the sampling resistor is connected with the anode of the charging loop, the other end of the sampling resistor is connected with the anode of the ia-level intrinsic safety battery, the first proportional resistor is connected with the second proportional resistor in series, one end of the first proportional resistor is connected with one end of the sampling resistor, the middle connecting point of the first proportional resistor and the second proportional resistor is connected with the emitter of the first PNP triode, the collector of the first PNP triode is connected with the base of the first NPN triode, the collector of the first NPN triode is connected with one end of the second proportional resistor, the emitter of the first NPN triode is grounded, the base of the first PNP triode is connected with the base of the second PNP triode, and the base and the collector of the second PNP triode are in short circuit and are connected with the base of the first PNP triode and the base bias resistor.
Description
Technical Field
The invention relates to the technical field of electronic circuits, in particular to an ia-level intrinsic safety battery charging voltage feedback circuit.
Background
The ia-level intrinsic safety battery can be used in environments containing explosive mixtures such as petroleum, chemical engineering, textiles and coal and can be used as power supply equipment of communication, monitoring, detection, alarm and control systems. In order to prevent the sparks generated when the output is over-current or short-circuited from igniting flammable and explosive gases, the ia-level intrinsic safety battery needs to adopt a current-limiting resistor to limit the energy of the sparks. The presence of the current limiting resistor affects the charging current and voltage such that the charging time becomes very long. For the purpose of quick charging, it is now conventional to increase the output voltage of the charger, which exceeds the maximum allowable charging voltage of the battery, and if the protection board fails, the battery is overcharged.
Disclosure of Invention
The object of the present invention is to solve at least one of the technical drawbacks mentioned.
Therefore, the invention aims to provide a ia-level intrinsic safety battery charging voltage feedback circuit.
In order to achieve the above object, an embodiment of the present invention provides an ia-level intrinsically safe battery charging voltage feedback circuit, including: the circuit comprises a first proportional resistor, a second proportional resistor, a sampling resistor, a base bias resistor, a first PNP triode, a second PNP triode and a first NPN triode, wherein one end of the sampling resistor is connected with the positive electrode of a charging loop, the other end of the sampling resistor is connected with the positive electrode of an ia-level intrinsic safety battery, the first proportional resistor is connected with the second proportional resistor in series, one end of the first proportional resistor is connected with one end of the sampling resistor, the middle connection point of the first proportional resistor and the second proportional resistor is connected with the emitter of the first PNP triode, the collector of the first PNP triode is connected with the NPN base of the first triode, the collector of the first NPN triode is connected with one end of the second proportional resistor, the emitter of the first NPN triode is grounded, the base of the first PNP triode is connected with the base of the second PNP triode, the base of the second PNP triode is connected with the collector of the second PNP triode in short circuit, and the base bias resistor are connected with the base of the first PNP triode.
Further, the ia-level intrinsically safe battery charging voltage feedback circuit of the invention further comprises: a voltage divider circuit, the voltage divider circuit comprising: the voltage-dividing resistor is connected with a voltage feedback end of a charging circuit, and sampling points of the first voltage-dividing resistor and the second voltage-dividing resistor are connected with a collector of the first NPN triode.
The ia-level intrinsic safety battery charging voltage feedback circuit is used in the ia-level intrinsic safety battery charging voltage device, can quickly and safely charge the ia-level intrinsic safety battery, effectively avoids overcharging of the battery, realizes safe and quick charging of the ia-level intrinsic safety battery, and reduces overcharging risks to the maximum extent.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a circuit diagram of a ia-level intrinsically safe battery charging voltage feedback circuit according to an embodiment of the invention.
Reference numerals:
the circuit comprises a first proportional resistor R1, a second proportional resistor R6, a sampling resistor R2, a first divider resistor R4, a second divider resistor R5, a base bias resistor R10, a first PNP triode P1, a second PNP triode P2, a first NPN triode N1 and an equivalent resistor R3.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The invention provides a ia-level intrinsic safety battery charging voltage feedback circuit, in particular to a voltage feedback circuit used in a ia-level intrinsic safety battery charger circuit.
As shown in fig. 1, the ia-level intrinsically safe battery charging voltage feedback circuit according to the embodiment of the present invention includes: the circuit comprises a first proportional resistor R1, a second proportional resistor R6, a sampling resistor R2, a base bias resistor R10, a first PNP triode P1, a second PNP triode P2 and a first NPN triode N1.
Specifically, one end of the sampling resistor R2 is connected to the positive electrode of the charging circuit, and the other end is connected to the positive electrode of the ia-level intrinsic safety battery. The current passes through a sampling resistor R2 to the anode of the ia-level intrinsic safety battery.
The first proportional resistor R1 and the second proportional resistor R6 are connected in series, wherein one end of the first proportional resistor R1 is connected with one end of the sampling resistor R2, and a middle connection point of the first proportional resistor R1 and the second proportional resistor R6 is connected with the emitter of the first PNP triode P1.
In the embodiment of the present invention, the ratio of the resistance values of the first proportional resistor R1 and the second proportional resistor R6 is the same as the ratio of the resistance values of the first proportional resistor R1 and the equivalent resistor R3 (the equivalent resistor of the ia-class intrinsic safety battery internal series resistor).
The collector electrode of the first PNP triode P1 is connected with the base electrode of the first NPN triode N1, the collector electrode of the first NPN triode N1 is connected with one end of the second proportional resistor R6, the emitter electrode of the first NPN triode N1 is grounded, the base electrode of the first PNP triode P1 is connected with the base electrode of the second PNP triode P2, and the base electrode and the collector electrode of the second PNP triode P2 are in short circuit and are connected with the base electrode of the first PNP triode P1 and the base electrode bias resistor R10. The emitter of the second PNP triode P2 is connected with the positive electrode C + of the charging output.
In addition, the ia level intrinsic safety battery charging voltage feedback circuit of the invention also comprises: a voltage divider circuit, the voltage divider circuit comprising: the voltage divider circuit comprises a first voltage dividing resistor R4 and a second voltage dividing resistor R5, wherein the voltage dividing circuits of the first voltage dividing resistor R4 and the second voltage dividing resistor R5 are connected with a voltage feedback end FB of the charging circuit, and sampling points of the first voltage dividing resistor R4 and the second voltage dividing resistor R5 are connected with a collector of a first NPN triode N1.
And finally, the voltage at the point A is equal to the voltage at the point B. Point B is a voltage feedback sampling point through which the voltage of the battery can be fed back to the charger. The output current and output voltage of the charger are not affected by the resistor R3, so that the voltage applied to the battery does not exceed the over-charging allowable value, and the charging speed is high. The charger using the circuit can effectively avoid the overcharge even if the protection board of the battery fails or the protection board is not available.
The ia-level intrinsic safety battery charging voltage feedback circuit provided by the embodiment of the invention is used in an ia-level intrinsic safety battery charging voltage device, can quickly and safely charge the ia-level intrinsic safety battery, effectively avoids overcharging of the battery, realizes safe and quick charging of the ia-level intrinsic safety battery, and furthest reduces the overcharge risk.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A class ia intrinsically safe battery charging voltage feedback circuit, comprising: a first proportional resistor, a second proportional resistor, a sampling resistor, a base bias resistor, a first PNP triode, a second PNP triode and a first NPN triode,
one end of the sampling resistor is connected with the anode of the charging loop, the other end of the sampling resistor is connected with the anode of an ia-level intrinsic safety battery, the first proportional resistor is connected with the second proportional resistor in series, one end of the first proportional resistor is connected with one end of the sampling resistor, the middle connecting point of the first proportional resistor and the second proportional resistor is connected with the emitter of the first PNP triode, the collector of the first PNP triode is connected with the base of the first NPN triode, the collector of the first NPN triode is connected with one end of the second proportional resistor, the emitter of the first NPN triode is grounded, the base of the first PNP triode is connected with the base of the second PNP triode, and the base and the collector of the second PNP triode are in short circuit and are connected with the base of the first PNP triode and the base bias resistor.
2. The ia-level intrinsically safe battery charging voltage feedback circuit of claim 1, further comprising: a voltage divider circuit, the voltage divider circuit comprising: the voltage-dividing resistor is connected with a voltage feedback end of a charging circuit, and sampling points of the first voltage-dividing resistor and the second voltage-dividing resistor are connected with a collector of the first NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110480821.XA CN113206524B (en) | 2021-04-30 | 2021-04-30 | Ia-level intrinsic safety battery charging voltage feedback circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110480821.XA CN113206524B (en) | 2021-04-30 | 2021-04-30 | Ia-level intrinsic safety battery charging voltage feedback circuit |
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| CN113206524A CN113206524A (en) | 2021-08-03 |
| CN113206524B true CN113206524B (en) | 2022-11-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6297615B1 (en) * | 1999-06-09 | 2001-10-02 | Snap-On Technologies, Inc. | Battery pack and over-voltage alarm therefor |
| CN102332735A (en) * | 2011-06-22 | 2012-01-25 | 杭州炬华科技股份有限公司 | Program controlled charging circuit for nickel-hydrogen battery |
| CN104410137A (en) * | 2014-12-26 | 2015-03-11 | 青岛歌尔声学科技有限公司 | Charging protection circuit and electronic product |
| CN211859626U (en) * | 2019-12-27 | 2020-11-03 | 深圳和而泰小家电智能科技有限公司 | Charging state indicating circuit and electronic equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178588B (en) * | 2013-04-18 | 2015-01-07 | 中煤科工集团重庆研究院有限公司 | Mining gas pipeline uninterruptible direct current power supply |
| CN207426671U (en) * | 2017-09-26 | 2018-05-29 | 深圳科宏健半导体照明有限公司 | A kind of intrinsically safe circuit current foldback circuit |
| CN208955692U (en) * | 2018-10-16 | 2019-06-07 | 四川正鸿泰精密电子科技有限公司 | It is a kind of with the USB interface for overcharging protection |
| CN112104234A (en) * | 2020-09-29 | 2020-12-18 | 北京瑞赛长城航空测控技术有限公司 | Ia protection level intrinsic safety type power supply circuit with constant voltage output for coal mine |
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2021
- 2021-04-30 CN CN202110480821.XA patent/CN113206524B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6297615B1 (en) * | 1999-06-09 | 2001-10-02 | Snap-On Technologies, Inc. | Battery pack and over-voltage alarm therefor |
| CN102332735A (en) * | 2011-06-22 | 2012-01-25 | 杭州炬华科技股份有限公司 | Program controlled charging circuit for nickel-hydrogen battery |
| CN104410137A (en) * | 2014-12-26 | 2015-03-11 | 青岛歌尔声学科技有限公司 | Charging protection circuit and electronic product |
| CN211859626U (en) * | 2019-12-27 | 2020-11-03 | 深圳和而泰小家电智能科技有限公司 | Charging state indicating circuit and electronic equipment |
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| CN113206524A (en) | 2021-08-03 |
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