Visual-level-indicator


Posted on Jun 15, 2012

This indicator is basically a switch with hysteresis characteristics. If the input voltage momentarily (or permanently) exceeds the most positive reference level, LEDl is switched on. If, on the other hand, the voltage falls below the negative, or least positive, reference level, LEDl will be switched off and LED2 switched on.


Visual-level-indicator
Click here to download the full size of the above Circuit.

The output voltage, V0 is clamped either to the diode voltage VDI, or V m depending on which LED is conducting. For V0 to be positive, VB has to be positive with respect to the reference voltage VR; for V0 to be negative, VB has to be negative with respect to VR.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

High Voltage Switching for Energy Recovery
Simple Infrared TX / RX circuit
Attendance counter
Current-booster
Buck-boost-converter
Geiger Counter
Simple Light Sensor Circuit Features High Dynamic Range
Analogue Inputs to MIDI Out
Infra Red Remote Control
Armstrong Oscillator using a crystal
rc triggering circuit
16x2 LCD Display Custom Characters Circuit
Recorders automatic shutdown circuit diagram TWH8778
Cordless telephone voice processing circuit diagram



Top