OpAmp - Differential Amplifier with common mode noise rejection

251

03:37:59

This is a response to @agaelema 

The op amp circuit at the top shows a differential amplifier working. The inputs are connected to two generators 180 degrees out of phase. Thus the amplifier is able to see this as a wave that it can amplify. 

This is the kind of wave that we see from an AM modulated TX or from humbucking guitar pickups 

The example at the bottom is the same configuration. However, here the signals are NOT 180 degrees out of phase, which is the kind of common mode noise that the op amp in this configuration can reject and it does so well! The output here is shown as the DC green line on the scope trace above.

Cheers

published 1 year ago

maximoleonidas1264

1 year ago

gracias por los 61 visitas hoy es el dia que tengo que recordar a mi gato que murio el: 04/08/24

maximoleonidas1264

1 year ago

miren les aclaro algo nota de aclaracion: (a los expectativos de este circuito es esto) si este cicuito llega a los 140 visitas lo actualizare

maximoleonidas1264

1 year ago

hola a todos, ya se que estuve desaparecido por un monton de tiempo pero he vuelto a planear cual sera la actualizacion que prometi de los 140 visitas

maximoleonidas1264

1 year ago

ahorita actualizare ok?

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