Power supply circuit for a variable electrical source

Details Power supply circuit for a variable electrical source Power supply circuit for a variable electrical source

1982-01-05

1984-02-21

Shoop, William M .

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

363 86, H02M 114

Patent

active

044333684

ABSTRACT:
A novel converter circuit converts AC input voltage within the range of 85-260 VAC to a constant voltage, current limited DC output voltage wth substantially no input voltage, all without the use of a transformer or input voltage-select switch. The AC input voltage is inputted directly to a rectifier and then to the input of a phase-controlling element (SCR) for controlling the phase of the unfiltered rectified signal. A trigger signal-generating circuit generates a trigger signal for regulating the operation of the phase-controlling element. A ripple-removing filter circuit receives the output from the phase-controlling element and removes the ripple component. A voltage-regulating circuit, a current-limiting circuit, and a rapid start-up circuit to facilitate rapid generation of DC output signal soon after energization of the overall circuit by an AC power source are also disclosed.

REFERENCES:
patent: 3486104 (1969-12-01), Epstein
patent: 3600663 (1971-08-01), Wagner
patent: 3769573 (1973-10-01), Scantlin

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