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

Class-C amplifiers gradually entering class-B

neazoi

neazoi

Advanced Member level 6
Advanced Member level 6
Joined
Jan 5, 2008
Messages
4,134
Helped
13
Reputation
26
Reaction score
15
Trophy points
1,318
Location
Greece
Activity points
37,023
Hi, I have these two complementary amplifiers that operate on class-C.

I want to have a way to gradually convert both them into class-B, using a dual or preferably a single potentiometer (if possible) to do so.

By adjusting the potentiometer, I would gradually pass from class-C into class-B.

I guess some kind of biasing trick must be done.

Can you help me on this please?
 

Attachments

  • Capture.PNG
    Capture.PNG
    6.5 KB · Views: 58
Sort by date Sort by votes
You can introduce a potentiometer in the biasing network of each transistor to adjust the base bias voltage gradually. This will allow you to control the conduction angle from class-C towards class-B. To use a single potentiometer for controlling both transistors simultaneously, you can use a dual-ganged potentiometer.
 
Reply

    neazoi

    neazoi

    Points: 2
    Helpful Answer Positive Rating
Upvote 0 Downvote
aliarifat794 said:
You can introduce a potentiometer in the biasing network of each transistor to adjust the base bias voltage gradually. This will allow you to control the conduction angle from class-C towards class-B. To use a single potentiometer for controlling both transistors simultaneously, you can use a dual-ganged potentiometer.
Click to expand...
Can you give me an example in My circuit, especially the pnp? It might sound trivial but I would like ti see it
 
Upvote 0 Downvote

LaTeX Commands Quick-Menu:

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top