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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 - June 18, 2007 at 12:43 pm

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

Inverting Amplifier by IC LM741

Inverting Amplifier by IC LM741
Friends at study about the integrated circuit op-amp may nobody that strange Inverting Amplifier by IC LM741. Today we come to see this circuit again. Reserve will valuable in applying work other circuit. Get in the future by we fix R1 and R2. As a result will seek the value Vout get from a formula. Vout = -Vin(R2/R1) As a result request friends jubilantly with using integrated circuit LM741 please sir.

Be the first to comment - What do you think? Posted by admin - at 10:41 am

Categories: Circuit diagram, Op-amp circuit, Power Amplifier Tags: basic op-amp circuits, inverting amplifier, LM741

Basic Integrator by LM741

This is the basic integrator circuit used IC op-amp 741 is important part. The follow by range of input into the R1 is Element Input and the C1 is feed back element. This circuit has a different form differentiator circuit. The relationship of the incoming signal frequency, has the effect of changes in voltage output as well, so increased in parallel with R2 to control C1 (Low Frequency Resistor) when the frequency changes.When the frequency changes, and increased leg R3 Non-Inverting. To reduce the voltage Voi.