PROBLEM TO BE SOLVED: To provide a current limiting circuit that can be reduced in size.SOLUTION: A current limiting circuit according to the present embodiment comprises: a high-potential side main relay and low-potential side main relay interposed between a high-voltage battery and a high voltage load; a current limiting resistance connected in parallel with the low-potential side main relay or high-potential side man relay; a current varying unit connected in series with the current limiting resistance and variable in amperage on the basis of a current control signal; and a control unit that outputs a current control signal such that current flowing in the current limiting resistance is constant.SELECTED DRAWING: Figure 1
【課題】小型化が可能な電流制限回路を提供する。【解決手段】実施形態の電流制限回路は、高電圧バッテリ及び高電圧負荷の間に介挿された高電位側メインリレー及び低電位側メインリレーと、低電位側メインリレー又は高電位側メインリレーと並列に接続された電流制限抵抗と、電流制限抵抗に直列に接続され、電流制御信号に基づいて電流量が可変な電流可変部と、電流制限抵抗に流れる電流が一定となるように電流制御信号を出力する制御部と、を備える。【選択図】図1
CURRENT LIMITING CIRCUIT
電流制限回路
2016-05-23
Patent
Elektronische Ressource
Japanisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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