modified 11 years ago

Inverting amplifier

00:31:13

Can anyone tell me how it is -3 volts at the output ! 
How it is calculated i mean ? 

published 11 years ago

rich11292000

11 years ago

3 micro volts x -100 k volt amplifer = -3 volts

Sine_eyed

11 years ago

Voltage Out = -Voltage in / (feedback resistance / input resistance)

Sine_eyed

11 years ago

Gain = feedback resistance / input resistance

agaelema

11 years ago

Yes, The gain is calculated with the formula above. But this is a complex feedback network. You need use the Thévenin theorem to solve.

agaelema

11 years ago

See the book "Opamp for everyone", chapter 3.6. You will understand how to solve

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.