I tried the hystresis but did not work. 1k feedback resistor was added. I have added the C1 capacitor because the relay starts buzzing near the set point, so just to smooth the voltage and lower down the noise.Needs some hysteresis. (positive feedback)
Replace C1 with a diode, use a better opamp than the ancient, crippled 741.
So you are suggesting the capacitor useless, and there is a resistor on the base of the transistorWhy is there R3 and R4 And R6 none of that is needed but you need a diode as said across the coil of the relay and a resistor on the base to shut the transistor off faster.
Removed the excess resistors but still problem persisting.Why is there R3 and R4 And R6 none of that is needed but you need a diode as said across the coil of the relay and a resistor on the base to shut the transistor off faster.
|Thread starter||Similar threads||Forum||Replies||Date|
|M||Comparator Project.||Analog & Mixed-Signal Design||28|
|W||Comparator module initializing (pic16f877a)||Microcontrollers||46|
|B||Comparator dying on CMOS||Analog & Mixed-Signal Design||30|
|A||Lowering comparator output minimum||Analog & Mixed-Signal Design||5|
|M||How can I make a comparator circuit only produce an output when the input has stopped? (drops to near 0 volts)||Analog & Mixed-Signal Design||27|
by Jake Hertz