Difference between Class D Amplifier and Half Bridge

Thread Starter

artmaster547

Joined Jan 6, 2016
409
Hi All
Would anyone mind explaining what the difference between a Class D amplifier and Half bridge is? To me they appear to be the same thing would appreciate any clarification.

Kind Regards
Art
 

BobTPH

Joined Jun 5, 2013
6,078
A half bridge is one way you might implement the output stage of a class D amplifier An H-bridge is another, with the former being used with a bipolar supply and the latter with a single supply.

Both of these bridges are also used for other things, like motor drivers and inverters.

So, no, they are not the same thing as a class D amplifier.

Bob
 

Thread Starter

artmaster547

Joined Jan 6, 2016
409
A half bridge is one way you might implement the output stage of a class D amplifier An H-bridge is another, with the former being used with a bipolar supply and the latter with a single supply.

Both of these bridges are also used for other things, like motor drivers and inverters.

So, no, they are not the same thing as a class D amplifier.

Bob
ok thank I think the clarifies so a class D amplifier can be implemented using a half bridge or full bridge but not every half bridge structure is a class D amplifier
 

crutschow

Joined Mar 14, 2008
31,124
ok thank I think the clarifies so a class D amplifier can be implemented using a half bridge or full bridge but not every half bridge structure is a class D amplifier
Yes.
Class D amplification is a specific application for a bridge circuit.
Class D just means that an AC signal is being generated by a switching amplifier.
 
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