PROBLEM TO BE SOLVED: To discharge an electrical double layer capacitor used in a backup power supply circuit in a short time.SOLUTION: The backup power supply circuit includes: an electrical double layer capacitor that performs charging, receiving power supply from an external power supply and supplies electric power to a predetermined load upon abnormal shutdown of the external power supply; a booster circuit that boosts a voltage of electric power stored in the electrical double layer capacitor to a predetermined voltage and supplies the voltage to a load; and a discharge circuit that discharges electric power stored in the electrical double layer capacitor through the booster circuit upon normal shutdown of the external power supply.
【課題】バックアップ電源回路に用いられている電気二重層コンデンサの放電を短時間で実行可能とする。【解決手段】実施形態のバックアップ電源回路は、外部電源から電力供給を受けて充電を行い、前記外部電源の異常遮断時に所定の負荷に電力を供給する電気二重層コンデンサと、電気二重層コンデンサに蓄えられた電力の電圧を所定の電圧まで昇圧して負荷に供給する昇圧回路と、外部電源の正常遮断時に電気二重層コンデンサに蓄えた電力を昇圧回路を介して放電を行う放電回路と、を備える。【選択図】図1
BACKUP POWER SUPPLY CIRCUIT
バックアップ電源回路
2015-12-21
Patent
Elektronische Ressource
Japanisch
IPC: | 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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