Kon Zaw
Newbie level 5
switching mode pw supply
now i am learning about switching mode power supplys. i have learned that switching pw supply can theoritically give regulated 15v dc from 15v dc source by using PWM method.
1. how little can power comsumption even there are transformer and transistors?(it is like a perpetual motion mechine!!)
2. how can out put transformer operate for dc?
3. how can pwm base current in switching transistor help in load regulation?
please give me big picture or details. i am confusing.
thanks
now i am learning about switching mode power supplys. i have learned that switching pw supply can theoritically give regulated 15v dc from 15v dc source by using PWM method.
1. how little can power comsumption even there are transformer and transistors?(it is like a perpetual motion mechine!!)
2. how can out put transformer operate for dc?
3. how can pwm base current in switching transistor help in load regulation?
please give me big picture or details. i am confusing.
thanks