Besides switching at a fixed frequency for Flyback converters, quasi-resonant mode is widely used due to its lower switch-on losses and better EMI performance.
The device is designed for use in lighting applications and low cost switch-mode power supplies.
Not all towns can afford to bring in an internationally-known star, so many switch-on ceremonies are handled by ex-TV talent show contestants.
SCR is used for the switch in the supply that is a switch-type char-ged circuit of continuous current.
A switch-hitter in baseball should be naturally ambidextrous.
