Electrical transmission or interconnection systems – Plural supply circuits or sources – Substitute or emergency source
Patent
1995-07-11
1999-12-07
Gaffin, Jeffrey
Electrical transmission or interconnection systems
Plural supply circuits or sources
Substitute or emergency source
H02J 700
Patent
active
05998886&
ABSTRACT:
According to the present invention, there are provided an input terminal, an output terminal, an a.c. generating circuit and a voltage-anomaly detecting circuit. Power supplied to the input terminal is outputted from the output terminal based on an output produced from the voltage-anomaly detecting circuit. When the voltage of the supplied power is abnormal, a.c. power produced from the a.c. generating circuit is outputted from the output terminal. Further, a boosting circuit, a rectifying circuit and a capacitor are provided. The a.c. generating circuit is constructed so as to produce a.c. power from a charged voltage of capacitor. Owing to this construction, a power supply apparatus having a function for compensating for changes in voltage can be provided which is small in size and is inexpensive.
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Fujisawa Tsutomu
Hoshino Yasutaka
Nemoto Hideyuki
Yoshizaki Atsuhiro
Gaffin Jeffrey
Hitachi , Ltd.
Rios Roberto
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