|
|
| chopper stabilization amplifier question | ||
| Author 398338 Views 10 Posted at 2008/8/27 01:10 [View In Forum] | ||
|
Hi""pevijpklr pevijpklr i designed a chopper amplifierpevijpklr pevijpklr the differential output signal like attached file.pevijpklr pevijpklr why the spike is so large?pevijpklr pevijpklr can anybody now why ,is it normal?pevijpklr pevijpklr pevijpklr pevijpklr i often see the output signal will into a low pass filter.pevijpklr pevijpklr is when go into the low pass filter the spikes will disappear.pevijpklr pevijpklr thanks a lot |
| Reply No. | Replier | Total Replies 2 [View All Replies] [New Reply] | Replied at |
| 1 | nnxd | try using lpf to filter out the freq of 2*fchop and scaledown the size of ur switches | 2008/8/27 01:10 |
| 2 | hgping | hi chungming, an alternative way is to change your chopper freq. It may use no external low pass filter to filter high freq spike. But I am not sure the way works for you circuit. you know, op's gain-freq respons is low-pass. so, what about accelate your chopper freq until the freq much higher than op's UGB. may help |
2008/8/27 01:10 |
Total Replies 2 Thread Per Page 10
|
|||
