JPS6412452U - - Google Patents
Info
- Publication number
- JPS6412452U JPS6412452U JP10475787U JP10475787U JPS6412452U JP S6412452 U JPS6412452 U JP S6412452U JP 10475787 U JP10475787 U JP 10475787U JP 10475787 U JP10475787 U JP 10475787U JP S6412452 U JPS6412452 U JP S6412452U
- Authority
- JP
- Japan
- Prior art keywords
- charging
- error amplifier
- voltage
- predetermined value
- current
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 229910005580 NiCd Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Control Of Voltage And Current In General (AREA)
Description
第１図は本考案の一実施例を示す回路図。第２
図は過電流検出エラーアンプのゲインに基づく電
流―電圧特性を示す説明図。第３図ａ，ｂおよび
第４図ａ，ｂは本考案の一実施例における電圧、
電流および電力の時間特性を示す説明図。
符号の説明、１……電源、２……整流回路、３
……鉛電池、４……コンパレータ、５……鋸歯状
波電圧発生回路、６……過電流検出エラーアンプ
、７……電圧制御エラーアンプ。
FIG. 1 is a circuit diagram showing an embodiment of the present invention. Second
The figure is an explanatory diagram showing the current-voltage characteristics based on the gain of the overcurrent detection error amplifier. 3a, b and 4a, b are voltages in an embodiment of the present invention,
An explanatory diagram showing the time characteristics of current and power. Explanation of symbols, 1... Power supply, 2... Rectifier circuit, 3
... Lead battery, 4 ... Comparator, 5 ... Sawtooth wave voltage generation circuit, 6 ... Overcurrent detection error amplifier, 7 ... Voltage control error amplifier.
Claims (1)
充電器の電流制御装置において、 充電電流信号を所定の値に調整されたゲインに
基づいて増幅して出力する過電流検出エラーアン
プと、 充電電圧信号と基準電圧信号を比較し増幅して
その差信号を出力する電圧制御エラーアンプと、 充電初期は前記過電流検出エラーアンプの出力
に応じて充電電流を制御し、充電電圧が上昇して
所定の値に達したとき前記電圧制御エラーアンプ
の出力に基づいて前記充電電圧を前記所定の値に
維持するように電源のオン比率を制御するチヨツ
ピング定電圧回路を有することを特徴とする充電
器の電流制御装置。[Claim for Utility Model Registration] In a current control device for a charger that charges secondary batteries such as lead batteries and NiCd batteries, an overvoltage device that amplifies and outputs a charging current signal based on a gain adjusted to a predetermined value. a current detection error amplifier; a voltage control error amplifier that compares and amplifies a charging voltage signal and a reference voltage signal and outputs a difference signal; and, at the beginning of charging, controls the charging current according to the output of the overcurrent detection error amplifier. , a stepping constant voltage circuit that controls a power supply ON ratio to maintain the charging voltage at the predetermined value based on the output of the voltage control error amplifier when the charging voltage increases and reaches the predetermined value. A charger current control device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10475787U JPS6412452U (en) | 1987-07-08 | 1987-07-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10475787U JPS6412452U (en) | 1987-07-08 | 1987-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6412452U true JPS6412452U (en) | 1989-01-23 |
Family
ID=31336757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10475787U Pending JPS6412452U (en) | 1987-07-08 | 1987-07-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6412452U (en) |
-
1987
- 1987-07-08 JP JP10475787U patent/JPS6412452U/ja active Pending
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