Ground fault circuit interrupting device with improved integrate

Details Ground fault circuit interrupting device with improved integrate Ground fault circuit interrupting device with improved integrate

1981-05-04

1984-01-24

Salce, Patrick R.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361113, H02H 333

Patent

active

044280190

ABSTRACT:
An integrated circuit ground fault signal processor utilizes a power supply having a first, regulated, half-wave rectified supply voltage section and second DC supply voltage section. Operating current for a fault signal amplifier and charging current for a fault signal integrating capacitor are drawn from the second power supply section on a full-cycle basis. Operating current for a trip threshold detector or comparator and a high frequency oscillator circuit is drawn from the first power supply section for operation on an alternate half-cycle basis.

REFERENCES:
patent: 2953738 (1960-09-01), Bright
patent: 3852642 (1974-12-01), Engel et al.
patent: 3973171 (1976-08-01), Howell
patent: 4180841 (1979-12-01), Engel
patent: 4216516 (1980-08-01), Howell
patent: 4290004 (1981-09-01), Smith

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