R rampadavala New Member Mar 4, 2009 #1 hello fnds can you please to find the resistor values(r1,r2) in the following current booster. input (0-5Vdc) and output(0-30Vdc and 100ma)**broken link removed**
hello fnds can you please to find the resistor values(r1,r2) in the following current booster. input (0-5Vdc) and output(0-30Vdc and 100ma)**broken link removed**
R rampadavala New Member Mar 4, 2009 #2 for circuit please copy and paste the following link **broken link removed**
Grossel Well-Known Member Mar 4, 2009 #3 I guess you're talking about a non-inverting amplifier. You want it to magnify the voltage 6 times. That means the feedback factor should be 1/6. So R1/(R1+R2) = 1/6 From nowhere, I select value for R1=10k. Then, R2 must be 50k to get a feedback factor at 1/6. R1 will be below R2 in this case.
I guess you're talking about a non-inverting amplifier. You want it to magnify the voltage 6 times. That means the feedback factor should be 1/6. So R1/(R1+R2) = 1/6 From nowhere, I select value for R1=10k. Then, R2 must be 50k to get a feedback factor at 1/6. R1 will be below R2 in this case.