Loopback comparator circuit

Due to the influence of environmental interference, the transmitted switch confidence will generate glitches. Switch setting signals with burrs will
have some impact on the working reliability of the computer-controlled lanthanum system . To eliminate glitches, Schmitt triggers (such as 74LS14, etc.) or integrated comparators are usually used. 'Figure 27-24 is a shaping circuit
using a comparator . This circuit has similar characteristics to a Schmitt trigger
. The sleep current is controlled by RP1 and the loop width is adjusted by RF.