Programmable power supply

Details Programmable power supply Programmable power supply

1986-06-04

1987-07-07

Salce, Patrick R.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 89, 363 98, 323266, H02M 3335

Patent

active

046791302

ABSTRACT:
A programmable power supply is disclosed which combines a linear power supply with a switching power supply. The switching power supply includes a pulse width modulator, a main power transformer, and a DC to AC inverter which is responsive to the pulse width modulator for varying the input to the main power transformer. The linear power supply includes a FET that is coupled to the output of the switching power supply. The FET is controlled in response to a feedback signal representing the output of the FET and also a voltage programming signal representing the voltage to be programmed. The pulse width modulator is controlled in response to the feedback signal representing the output of the FET and also a feedback signal responsive to the voltage drop across the FET. The output from the switching power supply, which is fed to the FET, is controlled in response to the output from the pulse width modulator.

REFERENCES:
patent: 3517301 (1970-06-01), Huber
patent: 3879652 (1975-04-01), Billings
patent: 4300191 (1981-11-01), Baranowski et al.
patent: 4322817 (1982-03-01), Kuster
patent: 4390940 (1983-06-01), Corbefin et al.
patent: 4442339 (1984-04-01), Mizuno et al.
patent: 4586119 (1986-04-01), Sutton

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