Question

139

01:15:54

Why does this work with no voltage source and no ground?

published 10 years ago

rich11292000

10 years ago

It is internally sourced and sinked. No power or ground needed, only logic voltage to change its state. The reason for this is because of limited space. Opamps and logic gates are the same and are also internally powered and grounded. The 555 model is said to be internally grounded.

lenzrulz

10 years ago

Nice response rich1129200...😎

castillo92

10 years ago

Thanks!

jpoulin0901

10 years ago

I wish you could float the ground on the 555 so it could function easily with a bipolar supply

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.