Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Basic Power Electronic Question

Status
Not open for further replies.
S

shroff_rushi

Member level 1
Joined
Oct 11, 2010
Messages
35
Helped
0
Reputation
0
Reaction score
1
Trophy points
1,286
Activity points
1,602
we all know--->Power electronics is the applications of solid-state electronics for the control and conversion of electric power.

Power electronic converters - to modify the form of electrical energy (voltage, current or frequency).

Now my question is ---> Do we require external power sources while in process of controlling & converting(processing) electric power like we do in CE BJT to work as Amplifier ?

As law of conversation of energy says "Energy can not be generated or destroyed -it can only be converted from one form into other form"
 

well, yes, you always have some power being used by the control circuit, so eg in an offline SMPS typically its gets started up by a linear regulator, and then when up and running, some power is often derived from a bias winding on the transformer, for the purpose of powering the control circuit, but its not really like a class a audio amp which consumes a lot of bias power and is very inefficient.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top