Control circuit of ground fault circuit interrupter (GFCI)

Details Control circuit of ground fault circuit interrupter (GFCI) Control circuit of ground fault circuit interrupter (GFCI)

2007-07-24

2009-12-01

Barnie, Rexford N (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

C361S049000, C361S050000

Reexamination Certificate

active

07626788

ABSTRACT:
A control circuit of Ground Fault Circuit Interrupter (GFCI), includes a load connection circuit used to connect power end and load end while transferring AC thereof, a creepage detection circuit, a trip control circuit and a trip circuit, and further includes a self-diagnosis current generation circuit, a self-diagnosis display circuit and a first switch duct. When the input AC in positive half-cycle, one of the said trip circuit and the self-diagnosis display circuit is electrically connected, while another should be electrically connected while the input AC in negative half-cycle, so without manpower-provided simulated signal, the control circuit of GFCI can be self diagnosed of creepage protection function, for the feedback of the stand or fall circs in time.

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patent: 2008/0002314 (2008-01-01), Batko et al.
patent: 2008/0112099 (2008-05-01), Li et al.

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