Power supplies for electrical and electronic equipment

Details Power supplies for electrical and electronic equipment Power supplies for electrical and electronic equipment

1987-06-18

1988-09-06

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 21, 363 97, 323908, H02H 7122, H02M 3335

Patent

active

047697520

ABSTRACT:
A circuit for protecting an AC/DC, DC/AC or DC/DC convertor power supply which is fed from a supply source which may contain spikes or transients, comprising links of relatively lower and higher resistance connected in parallel in the current supply path from the power supply, and a feed back signal generator producing a feed back signal which varies responsively to variations in the power supply and is utilized to change the effective resistance of the low resistance link and thereby limit the current applied to the convertor transformer.

REFERENCES:
patent: 3112435 (1963-11-01), Barney
patent: 4254443 (1981-03-01), Wilson, Jr.
patent: 4435746 (1984-03-01), Barnett
patent: 4593213 (1986-06-01), Vesce et al.
patent: 4631470 (1986-12-01), Bingley

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