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LM317 help
Ok, so it's clear to me how to use the resistors to set the output voltage, but I'm not sure how to also limit the current. I realize now I was assuming that picking resistor values for the LM317 is partly about setting the voltage, but also about lmiting the current. If I'm using two...- vcaha
- Post #6
- Forum: General Electronics Discussion
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V
LM317 help
Because, if I understand the LM317 correctly, the ratio between the 2 resistors determines the output voltage. If the ratio is 1:1, the output voltage is 2.5v. From there, the only variable is the values of the 2 resistors, and lower resistance = higher current. So 2 10ohm resistors should...- vcaha
- Post #4
- Forum: General Electronics Discussion
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V
LM317 help
I'm trying to make a super-simple voltage regulator with an lm317. With a 5V input, I want 2.5V out and 150-200ma. According to everything I've read, 2 10ohm resistors in the following circuit should do it. But when I put my meter across v-out and ground, I get right around 5V. I've...- vcaha
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- Replies: 7
- Forum: General Electronics Discussion
