发明名称 Power supply regulator for television
摘要 A first run supply voltage is generated, during a power-up mode of a television receiver power supply, by rectifying a retrace voltage in a flyback transformer of a horizontal output stage of the television receiver. The rectified voltage is coupled through a resistor and a diode to a power supply voltage receiving terminal of an integrated circuit that generates a horizontal rate drive signal. The drive signal provides switching timings to the output stage. A standby supply voltage is coupled, during a standby mode, to the terminal. A shunt regulator regulates the voltage at the terminal during both the power-up and standby modes. A transistor having a collector electrode that is coupled to the run supply voltage and a base electrode, that is coupled to the anode of the diode, generates a second run supply voltage that is temperature compensated at an emitter electrode of the transistor.
申请公布号 US4761723(A) 申请公布日期 1988.08.02
申请号 US19870019855 申请日期 1987.02.27
申请人 RCA LICENSING CORPORATION 发明人 LENDARO, JEFFERY B.
分类号 H04N3/185;H04N5/63;(IPC1-7):H02M3/335;H01J29/70;H04N3/18 主分类号 H04N3/185
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