# Efficiency of a centre tap full wave rectifier(qualitative analysis)

In a centre tap full wave rectifier the output voltage is half of the input(secondary coils voltage) voltage, so the power is half of power of secondary. Also in half wave rectifier the only half of the cycle is rectified but the voltage amplitude is full so the power is half of power of secondary coil. Thus I conclude that the efficiency of both half wave and full wave rectifiers are same since both of them deliver almost same power per cycle. Is my reasoning and conclusion correct?

• You can very quickly resolve this for yourself by integrating P = IV for both input and output over a single period, and observing the difference. Commented Apr 5, 2016 at 3:21
• @uint128_t What would be the qualitative way? I want yo answer it qualitatively not quantitatively. Thanks for your response
– JM97
Commented Apr 5, 2016 at 3:31
• Duplicate of Full-wave rectifier vs full-wave bridge rectifier. The full-wave bridge rectifier has two diodes in circuit all the time. The double half-wave rectifier has only one so diode losses are halved. Commented Apr 5, 2016 at 8:01
• @Transistor Iam not asking about difference between half wave and full wave bridge rectifier , I am asking about simple half wave rectifier(which uses only one diode) and full wave rectifier.
– JM97
Commented Sep 6, 2016 at 10:29
• Schematics are better than words. Commented Sep 6, 2016 at 10:44