TCA280A Datasheet (Philips)

TCA280A, TRIGGER

II TCA280A TRIGGER MODULE The TCA280A is a monolithic integrated circuit designed for thyristor and triac control.

It contains the following circuit sections: - d.c.

power supply (intended for direct a.

supply) - zero-crossing detector (for synchronization of the trigger circuit) - difference amplifier (used as a sensing amplifier) - ramp function generator (operating as the sawtooth oscillator in time,..proportional control) - output amplifier (amplifying the trigger pulses and fee