A deflection circuit comprises a deflection correction circuit (Vs) with a controllable active voltage source (Vs) arranged in a loop formed by a deflection coil (Ld), an S-capacitor (Cs), and a flyback capacitor (Cf). The voltage source (Vs) receives a further power supply voltage (Vb2) and a modulating signal (M) to supply a modulating voltage (Vm) varying in response to the modulating signal (M). The active voltage source (Vs) comprises a switching element (S2) which is switched on and off with a frequency which is substantially higher than the deflection frequency to possibilitate waveforms of the modulating voltage (Vm) with a frequency content which is substantially higher than the deflection frequency such that any desired waveform can be generated within the deflection period (Td).
申请公布号
WO9965054(A2)
申请公布日期
1999.12.16
申请号
WO1999IB00989
申请日期
1999.05.31
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;PHILIPS AB
发明人
TEULING, DIRK, J., A.;MISDOM, JOHANNES, A., C.;VANEERDEWEGH, FRANKY, M., M., E.;VERHEES, JOHANNES, L., M.;KENNIS, ROGER, P., H.