Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1994-02-22
2000-09-05
Han, Jessica
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 97, H02M 3335
Patent
active
06115265&
ABSTRACT:
A transformer-coupled load driver (10) is adapted to provide a constant level of output current under condititons of variable input voltage and/or variable load resistance. The load driver (10) is provided with a current sensing resistor (30) which is included in an output branch (14) of the transformer (12). A pulse-width modulator (18) is used in conjunction with a voltage divider network (20) to sense current flow through the resisitor (30) and to control the current output of the branch (14) via modulation of a control signal delivered to the gate of a transistor (16).
REFERENCES:
patent: 5297014 (1994-03-01), Saito et al.
Allied-Signal Inc.
Han Jessica
Zak, Jr. Esq. William J.
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