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

Voltage average circuit without to use resistors

Status
Not open for further replies.
B

barbaromaykel

Newbie
Joined
Dec 19, 2015
Messages
3
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
27
From two known voltages, I need to calculate the average between them. I cannot use resistors in the proposed circuit. Does anyone know a circuit to calculate the average?
 

Hi,

Mathematically: V_avg = ( V1 + V2) / 2

Circuit: Use two ADCs and calculate it on the digital side.

Two resistors is the preferred solution. I've never heard about a requirement "not using resistors". Does it make sense?

Klaus
 

Hi,

barbaromaykel said:
From two known voltages
Click to expand...

do you mean the voltage levels? It sounds you are already measuring this voltages e.g. by an ADC. If so the approach suggested by klaus is your solution. I assume you have to measure/digitize the average voltage anyway.

Where does the no resistor requirement come from?

BR
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top