FREE RUNNING FREQUENCY CONTROL CIRCUIT OF A MONITOR

摘要

The circuit for getting high quality image by changing free running frequency during input period of non -horizontal synchronous signal at mode switching time includes a generator(10) providing free running frequency with input vertical synchronous circuit, a voltage controller(20) providing saw wave type vertical deflection signal, and a circuit(30) amplifying the vertical deflection signal. The vertical deflection signal is converted from the pulse type vertical synchronous signal.