Electronic – the maximum frequency a bridge rectifier can handle


I was designing a basic power supply with frequency ranging from 50-60Hz and thought about using this bridge rectifier KBPC50005.
I cant seem to understand the range of input frequencies it can take, its application notes have graphs made for 60Hz load, my input supply's frequency is 50Hz, and i think it might work but this lead me to this question that how can I be sure about it? Will it really work?

What if my input signal's frequency ranges to 100Hz or 800Hz? Will this rectifier work? How low or high frequency can it tolerate?
Or to be more general, what are the factors on which the input frequency characteristics of any bridge rectifier depend? Any ideas?

Best Answer

A good question - fortunately also the answer is nicer than some - the rectifier cited can easily handle frequencies from DC to well above 60 Hz.

Rectifiers intended for mains use usually do not have specifications provided relating to frequency capability as they will easily deal with any "normal" non switch mode applications. The highest they are liable to usually be used for are 400 Hz "aircraft" supplies. They are liable to work about as well at 10 kHz. Above that you may want to start checking.

Relevant parameters may include capacitance, reverse recovery time, stored charge ... and probably a few more.

"Fast Recovery" diodes usually have recovery times less than 1 μs. Recovery time is ~= the time for forward current to fall to zero after applied voltage changes from positive to negative.

The diode below relates to an FET internal body diode but is a nicer illustration than some others available. From here

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