ZX-COMPARATOR : Signal comparator module documentation 1
ZX-COMPARATOR Signal comparator module Features : Compares the voltage level between input A and B. Voltage input range is 0 to +5V There are 2 outputs : A>B and B>A. Output is logic “Low” with indicator.
COMPARATOR
S
2
R2 10k
6
S
+
A>B
A
B
D
R6 1k
B>A
B>A GREEN
B>A
A
B
R4 10k
A>B RED
7
4
A>B
S
R3 10k
R5 1k
IC1 LM393
5 IC1/2
B
1
S
3 IC1/1
R1 10k
A
8
+
+
+
D
Active Low output
Outs logic "0" when A > B Outs logic "0" when B > A
Figure 1: ZX-COMPARATOR schematic diagram www.inex.co.th www.inexglobal.com
(c) Innovative Experiment