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...

2005-07-19

2005-07-19

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

06920024

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

REFERENCES:
patent: 5317244 (1994-05-01), Ishikura
patent: 5363024 (1994-11-01), Hiratsuka et al.
patent: 5682088 (1997-10-01), Sonnek
patent: 5845045 (1998-12-01), Jeske et al.
patent: 6060848 (2000-05-01), Alvaro et al.

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