[sdiy] Coping with diode drop(s) on Iabc input with LM13700/CA3080
modular at go2.pl
Wed Sep 30 19:00:12 CEST 2020
Current mirror will only move the problem of coping with diode drop from gnd to plus rail
---- Użytkownik Aaron B. napisał ----
> This will invert the polarity of the CV, but if that isn't a big deal -
> drive the OTA through a current mirror. The PIC's output will sink
> current through a programming resistor at the mirror's input;
> the mirror's output then sources Iabc to the OTA.
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