POWER SUPPLY RIPPLE REJECTION IN TUNER OSCILLATOR STAGE
摘要
A bipolar transistor (Tr) in an oscillator stage of a tuner is provided with a diode (D10) in series with a resistor (R11) coupled between the base of the transistor (Tr) and the reference voltage to which the emitter of the transistor (Tr) is coupled. The diode (D10) allows a decreased resistor (R11) value which causes the supply voltage ripple (Vr1) on the collector originating from the base to decrease so as to better compensate the supply ripple (Vr2) on the collector directly originating from the supply voltage (Vs).
申请公布号
WO02097966(A3)
申请公布日期
2003.02.13
申请号
WO2002IB01870
申请日期
2002.05.27
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;TOH, YEOW, T.;VAN DER WIJST, HENDRICUS, M.;KWONG, KAM, C.
发明人
TOH, YEOW, T.;VAN DER WIJST, HENDRICUS, M.;KWONG, KAM, C.