The amplifier exposer circuit

Published:2011/8/15 21:47:00 Author: | Keyword: amplifier, exposer | From:SeekIC

The amplifier exposer circuit The circuit is a basic LDR bridge circuit, VR1 is the loading resistor of LDR. When testing, the high input impedance computing buffers IC1A and IC1B can make sure that the connection of LDR and VR1 has no effect. IC1C is the voltage comparator, which can control the brightness of the red and yellow LED. When it is at the zero point, the LED will change into red from yellow, or change from yellow into red, so it can provide with continuous illumination for VR1 and VR2. When the voltage of the cell drops to 6V, the yellow LED will indicate that the power is low.



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