Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Plural periodic switches or multiple contact periodic switch
Reexamination Certificate
2007-04-24
2007-04-24
Philogene, Haissa (Department: 2821)
Electric lamp and discharge devices: systems
Periodic switch in the supply circuit
Plural periodic switches or multiple contact periodic switch
C315S224000, C315S291000, C315S2090SC, C315S160000, C363S056030, C363S021060, C363S015000, C361S018000, C361S063000
Reexamination Certificate
active
11293212
ABSTRACT:
In the current detection circuit that detects the output currents of a switching power supply circuit, an improved current detection circuit makes it possible to detect the output current directions of power supplies solves the malfunction of the power supplies vibrating or diverging during changes in load state and during parallel operation, and thus implements stable operation. The direction of an output current I2can be detected by using the current detection circuit8that has multiple switching elements S1to S4each operating synchronously with an inverter circuit.
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Maru Naoki
Nisisu Koji
Oomae Shigeo
Yamamura Hideho
Antonelli, Terry Stout & Kraus, LLP.
Hitachi , Ltd.
Philogene Haissa
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