| 摘要 |
The circuit is for adjusting focus by generating parabola voltage which level is constant regardless to the frequency of horizontal scanning frequency. The circuit includes a sawtooth signal generator(10-15) for generating sawtooth signal by processing horizontal synchronous signal, a clamping circuit(16) for clamping output signal of an integrator(15) to generate parabola signal, and a phase inverter(17) for inverting output signal of the clamp circuit(16).
|
