where to measure the Ipeak of class A amplifier?

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Jump to Latest
R

rhythmsandy

Member
Joined 2012
where to measure the Ipeak of the class A amplifier?
for one pair of output is it at the source resistor so example if the voltage measured at source resistor is 220mv with source resistance of 0.22 ohm then the output current is 1Aamp so is this the peak current? or 2Amps is the peak?
 
jan.didden

jan.didden

AX tech editor
Joined 2002
linearaudio.net
Paid Member
The peak current is twice the quiescent current.

Suppose the quiescent current is 1A as in your example.
That current can go up, at the limit of class A, to 2A, because at that point the 'other' output side goes to zero current.

Alternatively, if the 'other' output side goes to the 2A, then 'this' output side goes to zero.

Therefor, each output side can go from zero to 2A, so that's the peak output voltage.

Didn't hurt, did it? ;)

jan
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Top Bottom