Here is a peak detection comparator schematic and simulation,i have three question about them.
1.Why is there a high signal in C point,but not in A and B point?
2.There is VSS in this peak detection comparator schematic,is there a peak detection comparator schematic without VSS in it? I connect it with gnd,but the wave is wrong.
(1) peak detection comparator schematic
(2) peak detection comparator simulation
The purple line is the \$V_{PZT}\$,and the blue line is the \$V_D\$,the red one is the output of comparator,that is ,\$V_{CP_PK}\$
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