To downsize/upsize a power supply smoothing capacitor to which a specific high voltage Vpp such as a load dump voltage may be applied.SOLUTION: The power supply smoothing capacitor is formed of a small-capacitive first capacitor 111A having high breakdown voltage equal to or higher than specific high voltage Vpp, and a large-capacitive second capacitor 140A having low breakdown voltage. When voltage applied to the first capacitor 111A has exceeded a normal maximum voltage Vmax(

    【課題】ロードダンプ電圧などの特定高電圧Vppが印加されることがある電源平滑用コンデンサの小型化・大容量化を図る。【解決手段】電源平滑コンデンサは,小容量で特定高電圧Vpp以上の高耐圧の第1コンデンサ111Aと,大容量で低耐圧の第2コンデンサ140Aによって構成され,第1コンデンサ111Aに対する印可電圧が通常の最大電圧Vmax(<Vpp)を超過すると充放電開閉素子130Aが開路して第2コンデンサ130Aを保護するともに,第1コンデンサ111Aに対する印可電圧が最大電圧Vmax以下になると,充放電開閉素子130Aが可逆導通して,第1コンデンサ111Aと第2コンデンサ140Aとの並列回路が構成され,全体として小型で大容量の電源平滑コンデンサを得ることができる。【選択図】図1


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    Title :

    POWER SUPPLY SMOOTHING CAPACITOR


    Additional title:

    電源平滑用のコンデンサ回路


    Contributors:

    Publication date :

    2019-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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