CN110635541A - Battery charging device - Google Patents
Battery charging device Download PDFInfo
- Publication number
- CN110635541A CN110635541A CN201911092799.0A CN201911092799A CN110635541A CN 110635541 A CN110635541 A CN 110635541A CN 201911092799 A CN201911092799 A CN 201911092799A CN 110635541 A CN110635541 A CN 110635541A
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- CN
- China
- Prior art keywords
- tube
- resistor
- electrode
- pnp
- npn
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a battery charging device. The battery charging device comprises a first resistor, a first voltage regulator tube, a second resistor, a first NPN tube, a first PNP tube, a second PNP tube, a third resistor and a battery. The battery charging device provided by the invention effectively charges the constant current of the battery by utilizing the characteristic of stabilizing the voltage of the voltage stabilizing tube.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a battery charging device.
Background
In order to charge the battery, a device for realizing battery charging by using a voltage regulator tube is designed by using the characteristic that the voltage regulator tube can stabilize the voltage.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a battery charging device.
The battery charging device comprises a first resistor, a first voltage regulator tube, a second resistor, a first NPN tube, a first PNP tube, a second PNP tube, a third resistor and a battery:
one end of the first resistor is connected with a power supply voltage VCC, and the other end of the first resistor is connected with the N pole of the first voltage regulator tube and the base electrode of the first NPN tube; the P pole of the first voltage-regulator tube is grounded, and the N pole of the first voltage-regulator tube is connected with one end of the first resistor and the base electrode of the first NPN tube; one end of the second resistor is connected with the emitter of the first NPN tube, and the other end of the second resistor is grounded; the base electrode of the first NPN tube is connected with one end of the first resistor and the N electrode of the first voltage regulator tube, the collector electrode is connected with the base electrode and the collector electrode of the first PNP tube and the base electrode of the second PNP tube, and the emitter electrode is connected with one end of the second resistor; the base electrode and the collector electrode of the first PNP tube are connected together and then connected with the collector electrode of the first NPN tube and the base electrode of the second PNP tube, and the emitter electrode of the first PNP tube is connected with a power supply voltage VCC; the base electrode of the second PNP tube is connected with the collector electrode of the first NPN tube and the base electrode and the collector electrode of the first PNP tube, the collector electrode is connected with one end of the third resistor, and the emitter electrode is connected with a power supply voltage VCC; one end of the third resistor is connected with the collector of the second PNP tube, and the other end of the third resistor is connected with the anode of the battery; and the anode of the battery is connected with one end of the third resistor, and the cathode of the battery is grounded.
The first resistor and the first voltage regulator tube enable the voltage of the base electrode of the first NPN tube to BE regulated to the regulated value of the first voltage regulator tube, the regulated value minus the BE junction voltage of the first NPN tube is the voltage added to the second resistor, and the generated current is mirrored to the second PNP tube through the first PNP tube to charge the battery; the third resistor plays a role in limiting current.
Drawings
Fig. 1 is a circuit diagram of a battery charging apparatus according to the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the battery charging apparatus includes a first resistor 101, a first voltage regulator tube 102, a second resistor 103, a first NPN tube 104, a first PNP tube 105, a second PNP tube 106, a third resistor 107, and a battery 108:
one end of the first resistor 101 is connected with a power supply voltage VCC, and the other end is connected with the N pole of the first voltage regulator tube 102 and the base electrode of the first NPN tube 103; the P pole of the first voltage regulator tube 102 is grounded, and the N pole is connected with one end of the first resistor 101 and the base of the first NPN tube 103; one end of the second resistor 103 is connected to the emitter of the first NPN transistor 104, and the other end is grounded; the base electrode of the first NPN tube 104 is connected to one end of the first resistor 101 and the N electrode of the first voltage regulator tube 102, the collector electrode is connected to the base electrode and the collector electrode of the first PNP tube 105 and the base electrode of the second PNP tube 106, and the emitter electrode is connected to one end of the second resistor 103; the base electrode and the collector electrode of the first PNP transistor 105 are connected together and then connected to the collector electrode of the first NPN transistor 104 and the base electrode of the second PNP transistor 106, and the emitter electrode is connected to the power supply voltage VCC; the base electrode of the second PNP transistor 106 is connected to the collector electrode of the first NPN transistor 104 and the base electrode and the collector electrode of the first PNP transistor 105, the collector electrode is connected to one end of the third resistor 107, and the emitter electrode is connected to the power supply voltage VCC; one end of the third resistor 107 is connected to the collector of the second PNP transistor 106, and the other end is connected to the positive electrode of the battery 108; the positive electrode of the battery 108 is connected to one end of the third resistor 107, and the negative electrode is grounded.
The first resistor 101 and the first voltage regulator tube 102 stabilize the voltage of the base of the first NPN tube 104 to the stabilized value of the first voltage regulator tube 102, the voltage of the second resistor 103 is obtained by subtracting the BE junction voltage of the first NPN tube 104 from the stabilized value, and the generated current is mirrored to the second PNP tube 106 through the first PNP tube 105 to charge the battery 108; the third resistor 107 functions as a current limiting.
The description of the embodiments provided above is merely illustrative of preferred embodiments of the present invention, and it will be apparent to those skilled in the art that the present invention can be implemented or used in light of the above description. It should be noted that, for those skilled in the art, it is possible to make several modifications and variations without departing from the technical principle of the present invention, and any invention that does not depart from the scope of the essential spirit of the present invention should be construed as the scope of the present invention.
Claims (1)
1. A battery charging apparatus, characterized in that: comprises a first resistor, a first voltage regulator tube, a second resistor, a first NPN tube,
The first PNP tube, the second PNP tube, the third resistor and the battery;
one end of the first resistor is connected with a power supply voltage VCC, and the other end of the first resistor is connected with the N pole of the first voltage regulator tube and the base electrode of the first NPN tube; the P pole of the first voltage-regulator tube is grounded, and the N pole of the first voltage-regulator tube is connected with one end of the first resistor and the base electrode of the first NPN tube; one end of the second resistor is connected with the emitter of the first NPN tube, and the other end of the second resistor is grounded; the base electrode of the first NPN tube is connected with one end of the first resistor and the N electrode of the first voltage regulator tube, the collector electrode is connected with the base electrode and the collector electrode of the first PNP tube and the base electrode of the second PNP tube, and the emitter electrode is connected with one end of the second resistor; the base electrode and the collector electrode of the first PNP tube are connected together and then connected with the collector electrode of the first NPN tube and the base electrode of the second PNP tube, and the emitter electrode of the first PNP tube is connected with a power supply voltage VCC; the base electrode of the second PNP tube is connected with the collector electrode of the first NPN tube and the base electrode and the collector electrode of the first PNP tube, the collector electrode is connected with one end of the third resistor, and the emitter electrode is connected with a power supply voltage VCC; one end of the third resistor is connected with the collector of the second PNP tube, and the other end of the third resistor is connected with the anode of the battery; and the anode of the battery is connected with one end of the third resistor, and the cathode of the battery is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092799.0A CN110635541A (en) | 2019-11-11 | 2019-11-11 | Battery charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092799.0A CN110635541A (en) | 2019-11-11 | 2019-11-11 | Battery charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110635541A true CN110635541A (en) | 2019-12-31 |
Family
ID=68979178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911092799.0A Withdrawn CN110635541A (en) | 2019-11-11 | 2019-11-11 | Battery charging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110635541A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113448370A (en) * | 2020-03-27 | 2021-09-28 | 矽统科技股份有限公司 | Constant current charging device |
| US11848583B2 (en) | 2020-03-27 | 2023-12-19 | Silicon Integrated Systems Corp. | Constant current charging device |
-
2019
- 2019-11-11 CN CN201911092799.0A patent/CN110635541A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113448370A (en) * | 2020-03-27 | 2021-09-28 | 矽统科技股份有限公司 | Constant current charging device |
| US11848583B2 (en) | 2020-03-27 | 2023-12-19 | Silicon Integrated Systems Corp. | Constant current charging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191231 |
|
| WW01 | Invention patent application withdrawn after publication |