Lm741 Op Amp Circuit | Electronic Project Circuits

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Single Polarity Supply by IC LM741

This is a simple Single polarity (negative to positive polarity) power supply circuit,For education, the work of a series op amplifiers.Since we use the input pin is a pin non inverting, it is an important condition.
the input power must be negative only As a result, the output voltage. However, if the input is positive, it will not delete the output. Because we used the power supply terminal positive and negative only.Or 4 pin connection with the ground.This circuit may be adapted to the negative circuit. Or to converter a negative voltage to positive voltage.

Be the first to comment - What do you think? Posted by admin - June 18, 2007 at 12:46 pm

Categories: Basic electronics, Circuit diagram, Power Amplifier Tags: lm741 op amp circuit, negative to positive polarity, positive voltage modify

Summing Amplifier by LM741

Summing Amplifier by LM741
The summing amplifier is a handy circuit. It are a type of operational amplifier circuit and an inverting amplifier mode. You can add several voltages input together. More than two inputs can be used.
In circuit:
Vout = -R4 ((Vin1/R1) + (Vin2/R2))
When R1 = R2 .
Vout = – R4/R1 (Vin1+Vin2)
When R1=R2=R4 .
Vout = – Vin1 + Vin2

We seen the information in http://en.wikipedia.org/wiki/Summing_amplifier#Summing_amplifier .

An audio mixer circuit is another good example of the summing sounds from different channels together, before send the combined signal to next an amplifier circuit.

Be the first to comment - What do you think? Posted by admin - at 12:43 pm

Categories: Basic electronics, Circuit diagram Tags: basic op-amp circuits, lm741 op amp circuit, Summing Amplifier

Non – Inverting Amplifier by IC LM741

This is Non – Inverting Amplifier Circuit by IC LM741.
For amplifier signal Frequency low power.

Today we try out Non – Inverting Amplifier circuit by IC LM741. Many you have who to ever study about the integrated circuit op-amp may appear familiar good with this circuit. It basically the base of amplifier circuit. Can induce apply the work has very plentiful from our circuit has can to calculate seek equipment value. By appraise R1 and R2 control the expansion ratio has of the circuit as follows, Vout = Vin(1+ R2/R1) Request friends have fun Non – Inverting Amplifier Circuit by IC LM741, please sir.