Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic 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

what do u mean by biasing in transistor??

Status
Not open for further replies.

diaryrashid

Newbie level 6
Joined
Nov 25, 2012
Messages
11
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,347
hello everyone
i have some question

1- what do u mean by biasing in transistor??

2-list the different types of biasing?

3- what is the operating point or Q point of transistor?

4-why it necessary to have a CAPACITOR between the input and the base of the transistor?

thanx
 

Tahmid

Advanced Member level 5
Joined
Jun 17, 2008
Messages
4,758
Helped
1,791
Reputation
3,574
Reaction score
1,650
Trophy points
1,393
Location
Silicon Valley, California, USA (from Dhaka, Bangl
Activity points
30,545

Junus2012

Advanced Member level 4
Joined
Jan 9, 2012
Messages
1,297
Helped
45
Reputation
94
Reaction score
43
Trophy points
1,328
Location
Italy
Activity points
12,552
Hello

biasing the transistor meaning setting it in the right position of the amplifier operation region. in bipolar transistor amplifier the bipolar transistor has to be in the active region and is done from the DC setting which nothing but the biasing. the exact point of the setting is the Q point, in order to have maximum amplification we need to set it in the middle of the A.C load line . when we apply a signal it will swing around this point

we put the capacitor so Isolate the AC from DC because the capacitor will be open for the DC, this allow us to design the DC biasing without the effect of the AC circuits (signal source and load)

hello everyone
i have some question

1- what do u mean by biasing in transistor??

2-list the different types of biasing?

3- what is the operating point or Q point of transistor?

4-why it necessary to have a CAPACITOR between the input and the base of the transistor?

thanx
- - - Updated - - -

I recommend you highly to read the book of Electronic fundamental by Thomas Floyd, you love it
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top