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Recent content by Chuotnha

  1. C

    Whats the difference between linear and switch DC supply?

    Linear DC Thank you, IanP.
  2. C

    Whats the difference between linear and switch DC supply?

    Linear DC Hi, Anybody knows what are the differences between linear DC supply and switch DC supply, (voltage and current)? Thanks Chuot
  3. C

    Help me make a bench top power supplies

    control panel circuits Hi Nicleo, I just foud your LM317 circuit at fairchildsemi datasheets. Thanks Chuotnha
  4. C

    Help me make a bench top power supplies

    Re: control panel circuits Hi Nicleo, I am feelling a little stupic, since I do not fully understand how did you come up with the LM317 circuit. Can you please tell me how the circuit work step by step, or you can tell what book, magazine... so I can have some idea about that circuit. I did...
  5. C

    Help me make a bench top power supplies

    control panel circuits Thank you bbarney
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    Help me make a bench top power supplies

    Re: control panel circuits Hello, Anyone knows how to control digital pot without using microcontroler. How would I control 8 different pots (8 channels) by using only 2 push button. Can I do this without using microcontroler. And by the way, which is microcontroler develpment kit that you...
  7. C

    How to control digital pot without using microcontroller?

    Digital pot Hello, Anyone know how to control digital pot (not a push button) without using microcontroler. How would I control 8 different pots (8 channels) by using only 2 push button. Thanks Chuotnha
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    Help me make a bench top power supplies

    control panel circuits Hello you all, Thank you very much for all your support. I have just download the files from "bbarney" since the "mcu" files could not opend. Now, I will read the articles and I still need your support again, and I really appreciate you all. chuotnha
  9. C

    Help me make a bench top power supplies

    Re: control panel circuits Hello to you all, and thanks for everything, I don't have enough point to down load the artical from the magazine, and I think I could try for microcontroler for my circuit, since I want it to be small and look cool to. Can you help me with the microprocessor...
  10. C

    Help me make a bench top power supplies

    Re: control panel circuits Thank you for your very helpful advices. I'm still don't know how to connect the select channel button to the circuit. Do I need the timer, counter, decoder circuits, to control the multiplexers, since I need to have only 2 increase/decrease buttons (or 2 rotaries)...
  11. C

    Help me make a bench top power supplies

    control panel circuits Hi, I am trying to make a bench top power supply for my workgroup. I would like to have 4 different channels (for 4 members in our group). Each channel has adjustable (+) and (-) voltages outputs, range from 5 to 15 V and limit current can be from 200 mA to 500 mA. How...
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