Start-up control circuitry for a television apparatus

Details Start-up control circuitry for a television apparatus Start-up control circuitry for a television apparatus

H - Electricity

04

N

350/109

H04N 3/185 (2006.01) H04N 5/63 (2006.01)

Patent

CA 1275493

ABSTRACT A supply voltage is developed in accordance with an on/off control signal of a remote receiver during a start-up interval and during a power-up mode of operation of a television power supply. During a standby mode of operation, the supply voltage is switched off. The supply voltage produces a supply current in an oscillator that produces a signal at a horizontal rate related frequency. The supply voltage also produces a base drive current in a switching transistor of a horizontal driver only during the start up interval. During a power-up mode, a run supply voltage is coupled to the oscillator and to the driver.

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