switching voltage การใช้

By switching voltage to the load with the appropriate duty cycle, the output will approximate a voltage at the desired level.
Microprocessor-controlled appliances, anything with a clock signal, and switching voltage regulators all make some kind of noise, at the repetition frequency and at harmonics.
The alternative is to use a switching voltage regulator which is usually more efficient but has a larger footprint and requires a larger number of associated components.
Due to the large switching voltages this transistor must handle ( around for a mains supply ), these transistors often short out, in turn immediately blowing the main internal power fuse.
The power transistor ( s ) in a switching voltage regulator, such as a power supply unit, are used like a switch to alternately let power flow and block power from flowing.