How can the input current of a boost regulator be more then the output current of the same regulator when the load has a set current draw.
For example going from 5V to 12V with a load of 2A. The power would be 24W and the input would be [email protected] and the output would be 12V@2A.
If the input and output are in series through the inductor, how can they have different currents?
On the right the switch is off, and the inductor is providing 2A to the load per load requirement. This means the input power supply is providing Vin = 5V * 2A = 10W and the load is taking Vout = 12V * 2A = 24W. Obviously this isn't true. The answer is that the current changes, but how can the current change if the input is in series with the output through the inductor?
Can someone explain?