Electronic trip device comprising a power supply device

Details Electronic trip device comprising a power supply device Electronic trip device comprising a power supply device

1997-02-05

1998-09-15

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

361 86, 361102, 307 86, H02H 300

Patent

active

058088474

ABSTRACT:
An electronic trip device for a circuit breaker comprising at least one current sensor supplying a current to a first power supply circuit. A distribution line connected to an output of the first power supply circuit distributes an electrical voltage regulated by a first chopping regulator to electronic circuits of the trip device. The trip device comprises a second power supply circuit connected to an external power source and a second chopping regulator connected between the second power supply circuit and the distribution line. The second chopping regulator operates in synchronized manner with the first chopping regulator.

REFERENCES:
patent: 3689801 (1972-09-01), Engel et al.
patent: 4583004 (1986-04-01), Yearsin

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