Current supply apparatus for an A.C. consumer

Details Current supply apparatus for an A.C. consumer Current supply apparatus for an A.C. consumer

1983-11-25

1986-03-04

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 89, 363 98, H02H 7122

Patent

active

045743410

ABSTRACT:
The invention relates to a current supply apparatus in which galvanic separation between the control portion and the high voltage portion is provided and has the feature of a rapid interruption of an overcurrent upon overload, such as, short-circuiting. Control pulses for the chopper and inverter transistor thereof are fed to a base control circuit by way of an opto-coupler and the gate feedable with an appropriate blocking signal on overcurrent is disposed between the opto-coupler and the base control circuit for the chopper and for the transistor of the inverter that are connected to the current return line of the inverter.

REFERENCES:
patent: 4047081 (1977-09-01), Liska
patent: 4099225 (1978-07-01), Nygaard
patent: 4454573 (1984-06-01), Petsch et al.

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