Reports 1-1 of 1 Clear search Modify search
AEL (General)
yutaro.enomoto - 18:21 Thursday 16 August 2018 (5815) Print this report
Modification of a Common Mode Servo 3

Based on JGW-G1808540, I modified some circuit componets of S1605811 to change pole/zero frequencies, to be used for CARM servo. 

Here is the list of changes:
C118: 100n --> 1000n
C119: 100n --> 1000n
R72: 1.5K --> 15K
R74: 1.5K --> 15K
R77: 82 --> 165
R78: 82 --> 165

Thanks to this modification, currently the 1st, 2nd, and 3rd boosts are 10Hz/1kHz pole/zero, 10Hz/1kHz pole/zero, and 300Hz/4.5kHz pole/zero, respectively.
I confirmed they are working properly, by plugging the slow output into IN1 to close the loop in order to avoid the saturation since 1st boost would otherwise saturate the circuit.

Search Help
×

Warning

×