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.

on the PCB board how to get a current source ?

Status
Not open for further replies.

katrin

Full Member level 1
Full Member level 1
Joined
Dec 3, 2005
Messages
98
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
2,200
I am doing the PCB board design now
The input signal of my chip needs a current source, but usually the function generator only provides the voltage source
therefore I think I need a voltage to current converter on my PCB board
I am wondering how can I implement that, could I just implement a simple current mirror on the PCB board. When the current mirror is built by discrete transistors and resistors elements, will there be any problems with the accuracy or the speed of the current mirror? Or can I just buy some electrical component which has the voltage for current converter function.
 

Hello
The simplest way - use resistor+voltage source.
Another way is current mirror (for ex. bipolar)
 

    katrin

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top