| ??? 10/31/04 14:30 Read: times |
#80100 - RE: WEOT: Precision rectifier for 50Hz. Responding to: ???'s previous message |
Prahlad said:
2. I have found this circuit on one of the web pages and I am not much satisfied with the performance. The problem is this circuit's rectified output is not symmetrical one half cycle looks bigger than the other on scope. Yes, if you look at point 'x' you will notice drastically differing values for both half waves, but at output Vout identical values should be observed. Nevertheless, this circuit has the disadvantage, that the manufacturing tolerances of up to 5 resistors influence precision of whole circuit! So, maybe this is the reason, why you even at Vout observe annoying imbalance? Keep in mind, that all 5 resistors must be identical! Kai |
