A well-known window comparator circuit uses a single op amp and has ... the voltage divider from the comparator output and use two diodes to set the hysteresis window width (Fig.

Manufacturers employ digital semiconductor techniques to make the output circuits in a comparator; thus ... The oldest comparators, such as the µA710, contain an internal zener diode, and you must ...

The above comparator circuit operates around zero volts ... The main issues cited are: Some op amps have clamping diodes on the inputs which limit the maximum voltage between the two inputs. This can ...

The transition from diodes to synchronous-rectification ... delays due to parasitic capacitances at the comparator inputs prevent this circuit from responding to the current-polarity change ...