Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
The virtual ground comes from maintaining one of the inputs (the inverting input) very very close to ground potential no matter what the input is. This usually requires feedback, but if you have a circuit you think might have a virtual ground in it no matter how it is connected we can take a look and see what it does.
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