Simple-window-detector


Posted on Jul 4, 2012

This simple window detector uses only half of a 7400 quad NAND gate plus four resistors, chosen so that the voltage at point A exc.,eds the voltage at point B for any input voltage. With no input applied or when VIN is at ground, the output of gate Gl is one; hence G2`s output is also one. As the input voltage increases, VA rises faster than JOB.


Simple-window-detector
Click here to download the full size of the above Circuit.

When Va reaches an acceptable one level, the circuit"s output drops to zero. As the input continues to increase, JOB rises to an acceptable level, changing the output of G2 to one.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Audio Analogue Level Meter
Electronic Candle Blow Out
IR remote control transmitter-receiver
Light-modulator
Powering Your Antique Battery Radio
op amp monostable multivibrator
fire stick schematic diagram
Active FM Antenna Booster circuit
Wireless Doorbell
Long Delay TimerCircuit
2N5003 Transistor
Homebuilt Hellschreibers
35W resistive and capacitive half-wave phase-shift trigger doer control circuit
Meter load economizer circuit diagram
Integrated operational amplifier tone control circuit of a simplified equivalent circuit a



Top