Amfutar da Summing Amplifier ko da Op Amp Adder

Op amp wani tafiya. Amma op amp zai iya yi aiki na summing. Zan iya kawo shirin op amp don kula da adadin siffar da za suka bazu da samun ci gaba mai yawa daga cikin siffar.

Summing amplifier ita ce shirin op amp wanda zai iya kula da adadin siffar da za suka bazu da samun ci gaba mai yawa daga cikin siffar.

A inverting amplifier an buga da summing Amplifier. A inverting amplifier akwai siffar da kaɗan ya fara a inverting input kamar yadda aka bayyana a nan,

Wannan inverting amplifier na iya kawo daidai zuwa summing amplifier, idan muna kula da adadin siffar da za suka bazu a inverting input kamar yadda aka bayyana a nan.

Haka, n siffar da suka bazu a inverting input. A wannan shirin, non-inverting terminal ta op amp ta ƙasa, saboda haka potential a wannan terminal ita ce zero. Idan op amp ta kasance ideal, potential of the inverting terminal ita ce zero.
Saboda haka, electric potential a node 1, ita ce zero. Daga wannan shirin, ana iya fahimtar cewa current i ita ce jamiyar currents daga siffar da suka bazu.

Saboda haka,

Idan op amp ta kasance ideal, current a inverting da non-inverting terminals ita ce zero. Saboda haka, idan a yi amfani da Kirchhoff Current Law, duk input current ta fi sauka a feedback path of resistance Rf. Yana nufin cewa,

Daga, equation (i) da (ii), muna samu cewa,

Wannan na nufin cewa output voltage v0 ita ce weighted sum of numbers of input voltages.

Misali na summing Amplifier

Ba ni ba a lura output voltage ta 3 inputs summer ko summing amplifier, shirin kamar yadda aka bayyana a nan,

Haka, idan a yi amfani da equation of summing amplifier,

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