CN200959527Y - Constant-current charger - Google Patents
Constant-current charger Download PDFInfo
- Publication number
- CN200959527Y CN200959527Y CNU2006200453623U CN200620045362U CN200959527Y CN 200959527 Y CN200959527 Y CN 200959527Y CN U2006200453623 U CNU2006200453623 U CN U2006200453623U CN 200620045362 U CN200620045362 U CN 200620045362U CN 200959527 Y CN200959527 Y CN 200959527Y
- Authority
- CN
- China
- Prior art keywords
- resistance
- indicator light
- diode
- connects
- power supply
- 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.)
- Expired - Fee Related
Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 230000009993 protective function Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a constant current charger, consisting of an indicator light, a transistor, a thyristor, and a charging battery. The device has alternating current power input ends A and B, the power end A connects with an indicator light D, resistances R1, RP2 and capacitance C are in series and connect with the indicator light D and the power end B. Thyristor VS, resistance R2 and PR1 are also in series and connect with the indicator light D and the power end B. The cathode of the diode VD1 connects between the resistance RP2 and the capacitance C; the other end connects with the control pole of the thyristor VS. Transistor Q1 connects with the cathode of the diode VD1. The emitter connects with the power end B, the base pole connects with the anode of diode VD2, the cathode of the diode VD2 connects between the resistance R2 and the resistance RP1. The circuit has battery protective function and the circuit is simple.
Description
Technical field
The utility model relates to a kind of battery charger.
Background technology
We know the development along with society, the more and more human feelingsization of used household electrical appliance, for easy to use, function is done more powerful and more powerful, generally all uses rechargeable battery as energy source and power now, the special charging circuit of while adapted, make the user be the frequent battery worry of changing again, now the most frequently used charging modes generally all adopts special charging management chip, builds many auxiliary circuits around master chip then, circuit is very complicated, will change a lot of components and parts according to the difference of battery.
Summary of the invention
The utility model is that a kind of constant current charger will be provided, and its more available components and parts commonly used is formed simple charging circuit, reaches constant current charge, and the effect of protection battery is arranged.
In order to achieve the above object, the technical scheme that the utility model adopted is: circuit is made up of power supply, indicator light, transistor circuit, ghyristor circuit and rechargeable battery.Ac power input end A and B, power supply A termination indicator light D, resistance R 1, RP2 and capacitor C series connection are attempted by on indicator light D and the power supply B end, controllable silicon VS, resistance R 2 and RP1 series connection also are attempted by on indicator light D and the power supply B end, diode VD1 positive pole is connected in the middle of resistance R P2 and the capacitor C, another termination controllable silicon VS controls the utmost point, transistor Q1 collector electrode connects diode VD1 positive pole, emitter connects power supply B end, base stage connects the negative pole of diode VD2, in the middle of the anodal connecting resistance R2 and resistance R P1 of diode VD2.A resistance (R3) in parallel is used to regulate the brightness of lamp at the indicator light two ends.
Battery pack is connected to the resistance R 2 and the resistance R P1 two ends of series connection.When beginning to charge, the battery pack both end voltage is lower, and deficiency is so that transistor Q1 conducting.The phase-shift circuit of being made up of RP2 and C provides trigger current to controllable silicon.The phase shift angle is determined by RP2.Controllable silicon ends during negative half period.Therefore controllable silicon in controlled halfwave rectifier mode through batteries charging.Adjust RP2 and can adjust charging current, maximum charging current is set by R1.The indicator light string in circuit with the size of indication charge condition and charging current.R3 is in order to regulate the brightness of indicator light.When battery voltage slowly raises, when predetermined value, triode begins conducting, and the silicon controlled angle of flow reduces, and charging current descends, and until ending fully, charging stops automatically like this, and battery pack is remained on the predetermined voltage.Because when voltage descends, transistor tends to again end, and controllable silicon restarts, but this moment, the angle of flow was very little, and electric current goes out very little, and rechargeable battery is had protective effect, prevents to overcharge.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described
As shown in Figure 1, AC power 10-12V input A and B, A termination indicator light D, a lamp two ends resistance R 3 in parallel, resistance R 1, RP2 and capacitor C series connection are attempted by on indicator light D and the power supply B, controllable silicon VS, resistance R 2 and RP1 series connection also are attempted by on indicator light D and the power supply B, diode VD1 positive pole is connected in the middle of resistance R P2 and the capacitor C, another termination controllable silicon VS controls the utmost point, transistor Q1 collector electrode connects diode VD1 positive pole, and emitter connects power supply B end, and base stage connects the negative pole of diode VD2, in the middle of the anodal connecting resistance R2 and resistance R P1 of diode VD2, battery pack is connected to the resistance R 2 and the resistance R P1 two ends of series connection.
Claims (2)
1. constant current charger, by power supply, indicator light, transistor circuit, ghyristor circuit is formed, it is characterized in that, ac power input end (A) and (B), power supply (A) termination indicator light (D), resistance (R1), (RP2) and electric capacity (C) series connection be attempted by on indicator light (D) and power supply (B) end, controllable silicon (VS), resistance (R2) and (RP1) series connection also be attempted by on indicator light (D) and power supply (B) end, diode (VD1) positive pole is connected in the middle of resistance (RP2) and the electric capacity (C), another termination controllable silicon (VS) control utmost point, transistor (Q1) collector electrode connects diode (VD1) positive pole, emitter connects power supply (B) end, base stage connects the negative pole of diode (VD2), in the middle of the anodal connecting resistance (R2) of diode (VD2) and the resistance (RP1).
According to the described constant current charger of claim 1, it is characterized in that 2, a resistance (R3) in parallel is used to regulate the brightness of lamp at the indicator light two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200453623U CN200959527Y (en) | 2006-08-31 | 2006-08-31 | Constant-current charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200453623U CN200959527Y (en) | 2006-08-31 | 2006-08-31 | Constant-current charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200959527Y true CN200959527Y (en) | 2007-10-10 |
Family
ID=38786407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200453623U Expired - Fee Related CN200959527Y (en) | 2006-08-31 | 2006-08-31 | Constant-current charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200959527Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185364A (en) * | 2011-05-17 | 2011-09-14 | 李秉哲 | Electric vehicle storage battery charger with multiple protection functions |
| CN104600812A (en) * | 2015-02-11 | 2015-05-06 | 周玉林 | Battery universal-type charger |
-
2006
- 2006-08-31 CN CNU2006200453623U patent/CN200959527Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185364A (en) * | 2011-05-17 | 2011-09-14 | 李秉哲 | Electric vehicle storage battery charger with multiple protection functions |
| CN104600812A (en) * | 2015-02-11 | 2015-05-06 | 周玉林 | Battery universal-type charger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |