My structure is like this:
0-220 Vac——>full wave rectifier——>linear regulator——>microcontroller and led
Microcontroller and led are taking 20ma.My linear regulator is LD1086.Regulator can accept input voltage up to 30V.I dont want step down transformer.I need to pre regulator.And I need to 5V output without ripple in regulator.Can you help me?
0-220 Vac——>full wave rectifier——>linear regulator——>microcontroller and led
Microcontroller and led are taking 20ma.My linear regulator is LD1086.Regulator can accept input voltage up to 30V.I dont want step down transformer.I need to pre regulator.And I need to 5V output without ripple in regulator.Can you help me?