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  1. mac72

    LM317 circuit doesn't supply enough current (only 20mA)???

    audioguru: I used the 5k pot because that's what was listed on the circuit design I borrowed. That's what I get for not doing my own math, right? Anyway, my measurements are taken as follows: [V+] === |------------------------| === [ammeter] === | (+) | |regulator circuit board |...
  2. mac72

    LM317 circuit doesn't supply enough current (only 20mA)???

    audioguru: I removed the current-limiting resistor, but I'm still getting the same current readings out of the voltage regulator. It's putting out 9v, but it doesn't seem to be supplying very much current. I've checked all my paths and connections, and it seems right. The potentiometer works...
  3. mac72

    LM317 circuit doesn't supply enough current (only 20mA)???

    Suraj: Thanks, but I may need a more in-depth explanation of what you said. I'm unclear as to where I'd be connecting and what I'd be measuring. Thanks, Mike
  4. mac72

    LM317 circuit doesn't supply enough current (only 20mA)???

    Dazza: For testing, I'm using a variable voltage wall wart that puts out a couple of amps. I've got a resistor on it to hold the current at 250mA for this project. Ultimately, I'd like to use a 12V camcorder battery. audioguru: I can't get more than 20mA from it. I've hooked up various...
  5. mac72

    LM317 circuit doesn't supply enough current (only 20mA)???

    Greetings! My first post... Sorry I'm such a newb, there may be a really simple answer to this: I made a voltage regulator using an LM317 and the circuit design at the top of this page: http://www.uoguelph.ca/~antoon/circ/ps-lm317.html. It works perfectly, except that it only passes about...
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