Control device for vehicle charging generator

Abstract

Abstract Translated from Japanese (57)【要約】 【課題】無線機等の高周波ノイズのダイオードの検波に よる検出電圧の上昇を抑制し、充電発電機の発電誤停止 や充電表示灯の誤点灯等の誤動作を防止可能な車両用充 電発電機の制御装置を実現する。 【解決手段】バッテリ電圧検出端子Sは1μs〜10μsの逆 回復時間を有するダイオード301と抵抗302とを介して発 電電圧出力端子Bに接続される。抵抗器303と304との間 の電圧V1と基準電圧307とが比較器306で比較され、その 出力信号で界磁電流制限用トランジスタ308の導通、非 導通が制御される。電圧V1と基準電圧310とは比較器309 で比較され電圧V1が基準電圧310を超えると充電表示灯 駆動用トランジスタ311が導通され充電表示灯4が点灯さ れる。端子Sに無線電波が照射されてもダイオード301の 逆回復時間が非常に遅いので順逆電流がほぼ等しく電圧 V1は殆ど変動せず発電電圧の変動や過電圧検出による表 示灯４の誤点灯を防止できる。 (57) [Summary] [Problem] A vehicle capable of suppressing an increase in detection voltage due to detection of a high-frequency noise diode of a wireless device or the like and preventing malfunction such as a power generation error stop of a charging generator and a false lighting of a charging indicator lamp. To realize a control device for a charging generator. A battery voltage detection terminal is connected to a generation voltage output terminal via a diode having a reverse recovery time of 1 μs to 10 μs and a resistor. The voltage V1 between the resistors 303 and 304 and the reference voltage 307 are compared by the comparator 306, and the output signal controls conduction and non-conduction of the field current limiting transistor 308. The voltage V1 is compared with the reference voltage 310 by a comparator 309. When the voltage V1 exceeds the reference voltage 310, the charge indicator light driving transistor 311 is turned on and the charge indicator light 4 is turned on. Even if the terminal S is irradiated with radio waves, the reverse recovery time of the diode 301 is very slow, so the forward and reverse currents are almost equal V1 hardly fluctuates, so that it is possible to prevent erroneous lighting of the indicator lamp 4 due to fluctuation of the generated voltage or detection of overvoltage.

Inventors

• 👤 Masanori Tsuchiya
• 👤 雅範 土屋
• 👤 Naoyuki Takahashi
• 👤 直行 高橋
• 👤 Keiichi Masuno
• 👤 敬一 増野

Bibliographic Details