CN104600812A - Battery universal-type charger - Google Patents
Battery universal-type charger Download PDFInfo
- Publication number
- CN104600812A CN104600812A CN201510072620.0A CN201510072620A CN104600812A CN 104600812 A CN104600812 A CN 104600812A CN 201510072620 A CN201510072620 A CN 201510072620A CN 104600812 A CN104600812 A CN 104600812A
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- charging
- circuit
- battery
- linear potentiometer
- switching diode
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- H02J7/0086—
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a battery universal-type charger. The battery universal-type charger is characterized by comprising a 10-12V direct-current power source, a one-way silicon controlled triggering and charging current adjusting circuit, a predetermined charging voltage circuit and a charging output circuit. Technology commonly used by nickel-cadmium or nickel-hydrogen battery chargers include charging modes of constant voltage variable current, variable voltage constant current, pulse type and constant current constant voltage. Most chargers sold on the market are manufactured in a rough way, so that service life of a rechargeable battery is about to be greatly reduced if the rechargeable battery is charged by using a simple charger for a long time. The battery universal-type charger can charge various nickel-cadmium batteries, also can charge alkaline batteries or dry batteries and is adjustable in charging current, and charging stop voltage is preset by a linear potentiometer.
Description
Technical field
The invention belongs to rechargeable battery charging technique field, is about a kind of battery general charger.
Background technology
The technology that NI-G or nickel-metal hydride battery charger are commonly used has the charging modes such as level pressure unsteady flow, variable voltage and variable current, pulsed, constant current level pressure.The charger that market is sold is shoddy in the majority, if the easy charger charging of rechargeable battery Long-Time Service, the life-span of rechargeable battery will have a greatly reduced quality.
Battery general charger of the present invention is except can be the charging of various nickel-cadmium cell, and also can be alkaline battery or dry battery charge, its charging current is adjustable, and end of charge voltage is preset by linear potentiometer.
Below describe in detail battery general charger of the present invention necessity involved in implementation process, guardian technique content.
Summary of the invention
Goal of the invention and beneficial effect: the technology that NI-G or nickel-metal hydride battery charger are commonly used has the charging modes such as level pressure unsteady flow, variable voltage and variable current, pulsed, constant current level pressure.The charger that market is sold is shoddy in the majority, if the easy charger charging of rechargeable battery Long-Time Service, the life-span of rechargeable battery will have a greatly reduced quality.Battery general charger of the present invention is except can be the charging of various nickel-cadmium cell, and also can be alkaline battery or dry battery charge, its charging current is adjustable, and end of charge voltage is preset by linear potentiometer.
Circuit working principle: battery general charger is when starting to charge, rechargeable battery set both end voltage is lower, be not enough to make NPN transistor VT1 conducting, form phase-shift circuit by RC and provide trigger current to unidirectional controllable silicon S CR, phase shifting angle is determined by linear potentiometer RP2, unidirectional controllable silicon S CR cut-off during negative half period.Therefore, unidirectional controllable silicon S CR is in halfwave rectifier mode to batteries charging, and adjustment linear potentiometer RP2 and adjustable charging current, maximum charging current is determined by resistance R2.When battery voltage slowly raises, when close to scheduled voltage, NPN transistor VT1 starts conducting, and the angle of flow of unidirectional controllable silicon S CR reduces, and charging current declines, until charging stops automatically, and makes battery pack remain on scheduled voltage.Linear potentiometer RP1 is used for the voltage of preset rechargeable battery; when voltage drop; NPN transistor VT1 tends to again cut-off; unidirectional controllable silicon S CR restarts; but now because the angle of flow is very little; charging current value is also very little, plays a protective role to rechargeable battery, can effectively prevent rechargeable battery overcharge phenomenon from occurring.
Technical scheme: battery general charger, it comprises 10 ~ 12V DC power supply, one-way SCR triggers and charging current Circuit tuning, predetermined charge voltages circuit and charging output circuit, it is characterized in that:
One-way SCR triggers and charging current Circuit tuning: it is made up of linear potentiometer RP2, resistance R2, electric capacity C1 and switching diode D1, linear potentiometer RP2 one end and movable knee-joint electric capacity C1 one end thereof and the positive pole of switching diode D1 and the collector electrode of NPN transistor VT1, electric capacity C1 other end connection circuit ground GND, the linear potentiometer RP2 other end passes through the control pole of negative pole order to controllable silicon SCR of resistance R2 connection circuit positive pole VCC, switching diode D1;
Predetermined charge voltages circuit: it is made up of NPN transistor VT1, switching diode D2, linear potentiometer RP1 and resistance R1, NPN transistor VT1 base stage connects switching diode D2 negative pole, the emitter connection circuit ground GND of NPN transistor VT1, the lever arm of switching diode D2 positive terminal potentiometer RP1, the upper end of linear potentiometer RP1 meets charging lead-out terminal positive pole VCC1 by resistance R1, the lower termination circuit ground GND of linear potentiometer RP1;
Charging output circuit: it is made up of unidirectional controllable silicon S CR and charging lead-out terminal, unidirectional controllable silicon S CR anode connection circuit positive pole VCC, unidirectional controllable silicon S CR negative electrode meets charging lead-out terminal positive pole VCC1, charging lead-out terminal negative pole connection circuit ground GND;
10 ~ 12V DC power anode connection circuit positive pole VCC, 10 ~ 12V DC power cathode is connected with circuit ground GND.
Accompanying drawing explanation
Accompanying drawing 1 is battery general charger provided by the invention embodiment circuit working schematic diagram.
Embodiment
According to the battery general charger circuit working schematic diagram shown in accompanying drawing 1 and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in summary of the invention, and components and parts technical parameter described in execution mode requires and circuit production main points are carried out enforcement and can be realized the present invention, is further described correlation technique of the present invention below in conjunction with embodiment.
The technical parameter of components and parts and selection requirement
VT1 is NPN transistor, and the model selected is 2SC9013 or 3DG12, requires β >=100;
SCR is one-way SCR, requires that its technical parameter is 1A/50V;
D1, D2 are switching diode, and the model selected is 1N4148 or selects 2CP series silicon rectifier diode;
RP1 is linear potentiometer, and the resistance of use is 2K Ω; RP2 is linear potentiometer, and the resistance of use is 100K Ω;
The resistance of resistance R1 is 1.8K Ω; The resistance of resistance R2 is 4.7K Ω (actual needs adjustment);
C1 is electric capacity, and use capacity is the electric capacity of the dacron of 0.22 μ F.
Circuit production main points, circuit debugging and using method
Because the circuit structure of battery general charger is fairly simple, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present invention only needs to debug simply and can normally work;
When the regulation of electrical circuit, 500mA DC ammeter is sealed in 10 ~ 12V DC power supply input circuit;
Then linear potentiometer RP2 is threaded to minimum resistance, the resistance of adjusting resistance R2, makes DC ammeter be designated as maximum charging current, such resistance R2 just determines; Rotating linear potentiometer RP2, it is corresponding with the DC ammeter numerical value be serially connected in 10 ~ 12V DC power supply input circuit that its scale demarcates current values;
Finally demarcate linear potentiometer RP1 scale, use the DC power supply that output voltage is adjustable, battery pack both positive and negative polarity connects with charging terminal respectively, rotating linear potentiometer RP1 adjusts scheduled voltage, namely end of charge voltage, and on linear potentiometer RP1 dial respectively mark on 3.0V, 4.5V, 6V;
Rechargeable battery is older or poor-performing, and the charging interval suitably can increase the charging interval according to actual conditions; The present invention, except can be the charging of various nickel-cadmium cell, also can be alkaline battery or dry battery charge.
Circuit components layout of the present invention, circuit structure design, its shape and size etc. of outward appearance are not all key technologies of the present invention; neither application claims protection technology contents; because not affecting specific implementation process of the present invention, therefore do not illustrate one by one in the description.
Claims (1)
1. a battery general charger, it comprises 10 ~ 12V DC power supply, one-way SCR triggers and charging current Circuit tuning, predetermined charge voltages circuit and charging output circuit, it is characterized in that:
Described one-way SCR triggers and charging current Circuit tuning is made up of linear potentiometer RP2, resistance R2, electric capacity C1 and switching diode D1, linear potentiometer RP2 one end and movable knee-joint electric capacity C1 one end thereof and the positive pole of switching diode D1 and the collector electrode of NPN transistor VT1, electric capacity C1 other end connection circuit ground GND, the linear potentiometer RP2 other end passes through the control pole of negative pole order to controllable silicon SCR of resistance R2 connection circuit positive pole VCC, switching diode D1;
Described predetermined charge voltages circuit is made up of NPN transistor VT1, switching diode D2, linear potentiometer RP1 and resistance R1, NPN transistor VT1 base stage connects switching diode D2 negative pole, the emitter connection circuit ground GND of NPN transistor VT1, the lever arm of switching diode D2 positive terminal potentiometer RP1, the upper end of linear potentiometer RP1 meets charging lead-out terminal positive pole VCC1 by resistance R1, the lower termination circuit ground GND of linear potentiometer RP1;
Described charging output circuit is made up of unidirectional controllable silicon S CR and charging lead-out terminal, unidirectional controllable silicon S CR anode connection circuit positive pole VCC, and unidirectional controllable silicon S CR negative electrode meets charging lead-out terminal positive pole VCC1, charging lead-out terminal negative pole connection circuit ground GND;
Described 10 ~ 12V DC power anode connection circuit positive pole VCC, 10 ~ 12V DC power cathode is connected with circuit ground GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072620.0A CN104600812A (en) | 2015-02-11 | 2015-02-11 | Battery universal-type charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072620.0A CN104600812A (en) | 2015-02-11 | 2015-02-11 | Battery universal-type charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104600812A true CN104600812A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510072620.0A Pending CN104600812A (en) | 2015-02-11 | 2015-02-11 | Battery universal-type charger |
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| CN (1) | CN104600812A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040164706A1 (en) * | 2001-03-30 | 2004-08-26 | Osborne Jeffrey Roger | Battery management unit, system and method |
| CN200959527Y (en) * | 2006-08-31 | 2007-10-10 | 朱洪兵 | Constant-current charger |
| CN204361757U (en) * | 2015-02-11 | 2015-05-27 | 周玉林 | Battery general charger |
-
2015
- 2015-02-11 CN CN201510072620.0A patent/CN104600812A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040164706A1 (en) * | 2001-03-30 | 2004-08-26 | Osborne Jeffrey Roger | Battery management unit, system and method |
| CN200959527Y (en) * | 2006-08-31 | 2007-10-10 | 朱洪兵 | Constant-current charger |
| CN204361757U (en) * | 2015-02-11 | 2015-05-27 | 周玉林 | Battery general charger |
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Application publication date: 20150506 |
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| WD01 | Invention patent application deemed withdrawn after publication |