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make 0-10v(dc) from 0-5v(dc)? please help

Discussion in 'Commercial Simulators and Peripherie' started by unreal939, Sep 3, 2015.

  1. unreal939

    unreal939 New Member

    Joined:
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    My Motion Simulator:
    Arduino
    I am working on a project and i have some parts left from an old race sim they build at my school.
    They used mucle cilinders and festo vavles to acuate them but if i want to use this software i can only use 5v pwm output from my arduino.

    please help a noobie.

    greetings Rainier.
    unreal939, Sep 3, 2015
    #1
  2. h106frp

    h106frp New Member

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    You have a few options;
    Use a transistor switch to get the PWM to 10 volts then low pass filter for 10 volts DC (easiest) or low pass filter and the use an op amp to amplify or use a I2C DAC and use an op amp to get to 10 volts DC.

    The DAC is very graceful and you can get up to 4 channels quite easily if you check the addressing of the chips used.
    http://www.technobotsonline.com/adafruit-12-bit-dac-breakout-board.html
    http://www.technobotsonline.com/i2c-dac-breakout-board-using-mcp4725.html

    If you use the PWM you need to configure for good resolution of the duty cycle, the period is not so important, then 0 to 100% duty will be 0-max DC volts. Lots of web calculators for calculating a simple RC filter. This method is well documented on the web
    Similar discussion here, you just need to alter the voltages to suit;
    http://forums.parallax.com/discussion/133509/having-trouble-getting-pwm-transistor-voltage-up-to-5-v
    The easy way to get a 10 volt supply is to use a small cheap DC to DC converter from the micros 5 volt supply.
    • Informative Informative x 5
    • Like Like x 1
    Last edited: Sep 3, 2015
    h106frp, Sep 3, 2015
    #2
  3. speedy

    speedy Well-Known Member

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    My Motion Simulator:
    3DOF, AC motor, Arduino, Motion platform
    • Informative Informative x 5
    speedy, Sep 3, 2015
    #3
  4. unreal939

    unreal939 New Member

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    thank you very much
    unreal939, Sep 23, 2015
    #4
  5. speedy

    speedy Well-Known Member

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    My Motion Simulator:
    3DOF, AC motor, Arduino, Motion platform
    Keep us posted with the good news :) .
    Last edited: Sep 27, 2015
    speedy, Sep 27, 2015
    #5