Blocking Oscillators - Solid-state Devices and Analog Circuits - Day 6, Part 11

Vocademy - Free Vocational Education

The blocking oscillator exploits circuit saturation to cause a sudden collapse of the magnetic field in the primary of a feedback transformer. This sudden collapse of the magnetic field causes the transistor base voltage to drop or reverse, blocking the transistor's operation. This desaturates the circuit and starts the cycle over.