Thev Equivielent Circuit

I need to design a simple resistor divider circuit with the following specs:

input voltage 15v output from divider 10v and should meet these specs with a load from 0 to 0.1mA

I have to determine the value resistors. so far I have R1 150k and R2 300k.

But that is with 2 resistors, if I add a load on there now, it obviously reduces the output voltage and if I add in a current source I get an output voltage of nearly zero.

Reply to
Peter
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What are the variances? You can't design it with out knowing what they are. Is 15v equivalent to 15.000000000000 Volts? or is it 15+- 0.5 volts?

You have one equation that has to meet two answers. Can't do it.

Say 10v =10 +- 0.5 then you can do something, you have two equations two unknowns.

Reply to
Mr. Cheese

The exact question is:

Design a voltage divider with the following specs:

A. use an input voltage source of 15v b. deisgn voltage divider to output 10volts with a tolerance of +/- 2% c. it should meet this spec with al oad from 0-0.1mA d. determine the value and tolerance of the resistors

I actually changed my values on the resistors to 2k and 4k and I think I got what I needed.

Reply to
Peter

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