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#LM 358 AS TIMER FREE#

I want to connect the output from pin 1 of the LM358 to an NE555 timer which is in astable mode (with a potentiometer) so the LED blinks whenever any object is near the IR sensor.

Power drain suitable for the operation of the battery. The white LED is connected to ground via a 270 ohm resistor and is connected to pin 1 (the output) of the LM358.

Two operational amplifiers of this IC are compensated internally.

Similarly, we can get output from Op-Amp 2. The LM358 contains two independent high gain operational amplifiers, low power, dual-channel op-amp. The output frequency of the square wave is regulated by connecting an RC circuit in parallel to the inverting input of the LM358 IC.

#LM 358 AS TIMER FREE#

If the input voltage 1 is less than the input voltage 2, then the output of the op-amp stays at VCC, which means the output voltage is HIGH (VCC). On powering up the circuit, the LM358 IC, connected in astable multivibrator mode, generates a free running square. Delayed voltage follower using an op amp will result in the output of the same voltage as is at the non inverting (+) input for as long as the (+) input. If the input voltage 1 is greater than the input voltage 2, then the output of the op-amp will be drawn down to the ground, which means the output voltage is Low (GND). First of all, we provide input voltage 1 to the Inverting terminal (Pin2) and input voltage 2 to the Non-Inverting Terminal (Pin3).

As an example, here we used the Op-Amp1 of the LM358 IC to get output.