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.

asking help for solving a simple cmos problem

Status
Not open for further replies.

maryambk

Newbie level 5
Joined
Aug 12, 2007
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,337
hi dear all,
i am really having problem with calculating in solving cmos problems.please help me with attached problem.
best regards
 

jody

Member level 3
Joined
Sep 14, 2006
Messages
57
Helped
7
Reputation
14
Reaction score
1
Trophy points
1,288
Activity points
1,527
first, the current that circulates in M4 and M6 is mirrored for M3 and M5.
 

maryambk

Newbie level 5
Joined
Aug 12, 2007
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,337
dear jody thanks for your answer,
the main problem for me is setting dc voltage=1.65 at vo1.
 

mince

Member level 5
Joined
Feb 19, 2005
Messages
82
Helped
10
Reputation
20
Reaction score
2
Trophy points
1,288
Location
Texas
Activity points
1,894
If I4 = M * I3 and W4 = M * I3, then Vo1 should be approximately equal to the gate voltage of M4.

The VGS of M4 should be easy to calculate with the formula for current.
 

maryambk

Newbie level 5
Joined
Aug 12, 2007
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,337
Dear Mince, thanks for your answer,
what do you mean from w4=M* I3 and what's M?
would explain more?
 

mince

Member level 5
Joined
Feb 19, 2005
Messages
82
Helped
10
Reputation
20
Reaction score
2
Trophy points
1,288
Location
Texas
Activity points
1,894
M is just a number. It should be W4 = M * W3....sorry about that.
 

hardings

Member level 3
Joined
May 23, 2003
Messages
57
Helped
5
Reputation
10
Reaction score
2
Trophy points
1,288
Activity points
501
Gain=10 only, why do you use this structure?
 

maryambk

Newbie level 5
Joined
Aug 12, 2007
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,337
hello,
My main aim was learning the theoritical method for solving this circuit.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top