Question

A charge controller maximum input is 12 V and 5 A. Its maximum output is 6 V and 9 A. What is the efficiency of the charge controller?

Answer 1

Given that,

Input voltage and current are 12 V and 5 A respectively.

Its maximum output is 6 V and 9 A.

To find,

The efficiency of the charge controller.

Solution,

The ratio of output power to the input power is called efficiency.

Power is given by :

P = V×I

V is voltage and I is current

Efficiency,

$\eta=\dfrac{6\times 9}{12\times 5}\times 100\\\\\eta=90\%$

So, the efficiency of the charge controller is 90%.