Television receiver supply circuit

Details Television receiver supply circuit Television receiver supply circuit

1980-04-03

1981-08-25

Richardson, Robert L.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 544

Patent

active

042862922

ABSTRACT:
A television receiver supply circuit includes a transistor driven between saturation and cut off periodically to chop the B+ voltage. The pilot pulses are derived from a pilot pulse source such as flyback pulses on a winding of the line output transformer. To prevent parasitic oscillations a second transistor is provided to ensure that the impedance seen by the winding of the line output transformer remains substantially constant during the flyback pulses.

REFERENCES:
patent: 4028606 (1977-06-01), Beuchee et al.
patent: 4118739 (1978-10-01), Umehara

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