• 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.

capacitors. . .!!

Status
Not open for further replies.

millwood

Banned
bypass capacitors are used to filter out (typically high frequency) ripples from the power supply or to the power supply, and to control stray inductance.

decoupling capacitors are used to block dc from ac signals, and sometimes people use decoupling to mean bypass (as in "power supply decoupling").
 

Nigel Goodwin

Super Moderator
Most Helpful Member
decoupling capacitors are used to block dc from ac signals, and sometimes people use decoupling to mean bypass (as in "power supply decoupling").
Because that's what they are - you're thinking of COUPLING capacitors, they block DC and pass AC.

Decoupling and bypass capacitors are mainly to connect two points to the same AC potential, all supply rails should be the same as far as AC is concerned.
 
Status
Not open for further replies.

EE World Online Articles

Loading
Top