ELECTRICAL POWER SYSTEM AND ELECTRICAL POWER DEVICE

To provide an electrical power system and an electrical power device which can raise an alarm when a butted FET turns to be off.SOLUTION: In an electrical power system with at least two electrical power devices 10 which supply current to a load, the electrical power device 10 comprises: a converter...

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Bibliographische Detailangaben
Hauptverfasser: NAKANISHI IWAO, SHIMIZU YUSUKE, FUKUHARA HIROSHI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide an electrical power system and an electrical power device which can raise an alarm when a butted FET turns to be off.SOLUTION: In an electrical power system with at least two electrical power devices 10 which supply current to a load, the electrical power device 10 comprises: a converter 11 which generates current being supplied to the load; an FET 13 which is connected in series between the converter and the load; a gate voltage monitoring circuit 16 which monitors whether or not a gate voltage of the FET 13 falls below a prescribed first reference voltage; and an alarm generation circuit 17 which generates an alarm according to results of monitoring by the gate voltage monitoring circuit.SELECTED DRAWING: Figure 2 【課題】突き合わせFETがオフ状態になった場合に、アラームを発報することができる電源システム及び電源装置を提供する。【解決手段】負荷に対して電流を供給する少なくとも2台の電源装置10を備える電源システムにおいて、電源装置10は、負荷に供給する電流を生成するコンバータ11と、コンバータと負荷との間に直列に接続されているFET13と、FET13のゲート電圧が予め規定された第1基準電圧を下回ったか否かを監視するゲート電圧監視回路16と、ゲート電圧監視回路の監視結果に応じてアラームを生成するアラーム生成回路17と、を備える。【選択図】図2