Field scanning circuit circuit and sawtooth waveforms

Inside:: Oscillator Circuits

Field scanning circuit circuit and sawtooth waveforms Sawtooth signal generating circuit color television field scan is an indispensable circuit shown in Figure 1 is a Toshiba

2150 TV field output waveform signal level and the structure of the circuit, the field vertical scan pulse signal generating circuit is supplied from the LA7837 feet in the IC first into the saw tooth wave signal forming circuit, can be measured in feet sawtooth signal. And then amplified by the amplifier, and finally the power amplifier output stage after the pin output peak scanning signal of about 54V. Sent to the deflection coil, the main power supply {-2V ( feet)