I see many circuits in which transistors or MOSFETs are used as "automatic" on and off switching devices. Can somebody explain how a MOSFET manages to pulse its gate within a circuit up to many hertz without outside interference?
An example would be the circuit of a joule thief. How is it possible that you use a couple of resistors and MOSFETs and make a pulsating signal?
I want to add a circuit as an example so somebody could maybe explain how the MOSFETs in this inverter cycle work and how they manage to turn on and off. It transforms 12 V DC into alternating current.