Schematics > Test and measurement > Voltage Monitor
Voltage Monitor
Parts List
D1 LED
R1 1.2k Resistor
R2 10k Var. Resistor
U1 UA741 OP AMP
Description
When the input voltage is 0 the LED glows. The LED stops glowing when the
voltage rises to the level determined by R2. Reverse + and - pins to reverse
operating mode. To set voltage at which LED goes off, (1) Set 0V at input. (2)
Set input voltage at desired level. (3) Adjust R2 to point right after LED goes
out.
Title: Voltage Monitor
Source: www.electronics-lab.com
Published on: 2005-02-10
Reads: 497
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