Switching regulator power supply

Details Switching regulator power supply Switching regulator power supply

1974-09-03

1977-01-04

Goldberg, Gerald

Electricity: power supply or regulation systems

Remote sensing

323 17, 323DIG1, 323 21, G05F 164, H02P 1324

Patent

active

040016633

ABSTRACT:
A switching regulator power supply operates at a high frequency with a low loss, light weight ferrite core transformer. The transformer primary is selectively connected across a DC source of rectified AC power for a predetermined time to provide energy storage followed by a predetermined time period of disconnect to provide energy transfer by way of transformer flyback. The energy storage and energy transfer cycles are initiated by a novel, self-starting timing circuit. The power parameters in at least one of a plurality of secondary windings are sensed and compared with a reference standard. Any error, in the form of a pulse-width-modulated pulse is coupled back to a primary control for adjustment of the energy storage time period. The coupling is done through a sealed opto-electronic coupler, this providing a DC coupling.

REFERENCES:
patent: 3629686 (1971-12-01), Hendrikus et al.
patent: 3675158 (1972-07-01), Judd et al.
patent: 3701937 (1972-10-01), Combs
patent: 3733540 (1973-05-01), Hawkins
patent: 3737756 (1973-06-01), Hasley et al.
patent: 3764889 (1973-10-01), Nowell
patent: 3771040 (1973-11-01), Fletcher

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