Sawtooth generator circuit, in particular for cathode ray line deflection.

摘要

The circuit comprises an integrator circuit (1) controlled by a switch (I1), delivering a sawtooth signal (V1) and powered by a generator circuit (2). An offset signal (V3) furnished by a second generator circuit (3) is added to the signal (V1) by way of an adder (5) in order to clamp the mean value of the signal (V1) to a specified value. The two generators (2) and (3) include an adjustable stabilised (DC) power supply (P2, P3) and a servocontrol loop which consists of a circuit breaker (I2, I3) followed by a differential integrator (6, 7). The adjusting of the amplitude and the clamping of the mean value of the sawtooth signals are independently servocontrolled and adjusted. The pulse generator (4) controls the circuit breaker (I1) of the integrator in opposition with the circuit breakers (I2, I3) of the loops. Application to the deflection circuits of a television camera. <IMAGE>