UC3842/UC3843 Isolation Single-end Flyback Switching Power Circuit

Published:2011/6/6 22:33:00 Author:Michel | Keyword: Isolation, Single-end, Flyback, Switching Power Circuit | From:SeekIC

Switching power supply has been widely used becauase of its advantages such as high efficiency, small volume. The traditional switch power supply uses voltage type pulse width modulation (PWM) technology, and recent years current-mode PWM technology has develpoed rapidly.Compared with voltage type PWM,current type PWM has better voltage and load adjustment rate.And the stability of system and dynamic characteristics also got significant improvement,especially its current-limiting and parallel current sharing ability make the control circuit simple and reliable.Current-mode PWM integrated controller has been industrialized,which pushes forward the small power switch power supply's development and application.Voltage-mode PWM controlling small power source has subsitituted current-mode PWM controlling small power power supply.



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