I have two questions about the sample circuit I found, pictured below. What are the requirements for R1\R2? Is the value of 0.1 Ohm somewhat arbitrary? How should the "correct" value be determined? The same question goes for R3, how did they pick 2K?
I am building a circuit with a required VO of 8.5 V, any reason why R4 = 470 Ohms and R5 = 2.7K Ohms wouldn't work fine? If R5 is increased does R3 need to match it or was it just a coincidence they picked the same value for the sample?
I am building a circuit with a required VO of 8.5 V, any reason why R4 = 470 Ohms and R5 = 2.7K Ohms wouldn't work fine? If R5 is increased does R3 need to match it or was it just a coincidence they picked the same value for the sample?