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One of the very useful transformerless power supplies using Viper12A IC can be used in many applications. It is sufficient to run micro-controllers, sensors, displays, relays, and so on. With very few numbers of components, we can get a reliable transformerless power supply using Viper12A.
About Viper12A:
This is actually a PWM controller with high voltage power MOSFET inside. Usually used in low power standby power supplies, battery chargers, auxiliary power supply etc.
Datasheet of...
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