Thermally suppressing circuit for restarting a locked motor

Details Thermally suppressing circuit for restarting a locked motor Thermally suppressing circuit for restarting a locked motor

2005-08-16

2005-08-16

Sircus, Brian (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

C361S103000

Reexamination Certificate

active

06930867

ABSTRACT:
A thermally suppressing circuit includes a restart-charging drive member, a coil set, a restart-charging capacitor, and a charging switch set. The restart-charging drive member is electrically connected to the coil set and the restart-charging capacitor while the charging switch set is connected between the coil set and the restart-charging capacitor. The charging switch set is used to access signals output from the restart-charging drive member. In abnormal operation, as the restart-charging drive member may turn on an auto-restart function to output a high or low voltage signal, the charging switch set is turned on to accelerate charging the restart-charging capacitor to thereby avoid overcurrent passing the coil set.

REFERENCES:
patent: 4578623 (1986-03-01), Tsukutani et al.
patent: 4856078 (1989-08-01), Konopka
patent: 5317244 (1994-05-01), Ishikura
patent: 5363024 (1994-11-01), Hiratsuka et al.
patent: 5554913 (1996-09-01), Ohsawa
patent: 5682088 (1997-10-01), Sonnek
patent: 6060848 (2000-05-01), Alvaro et al.
patent: 6731086 (2004-05-01), Nonaka
patent: 6788017 (2004-09-01), Lin et al.

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