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DRV103: Proportional Solenoid Valve + Arduino

Judah Shashank
Prodigy 10 points
Part Number: DRV103

Hello,

I have a proportional solenoid (PVQ31) 24V valve for a project. I thought of using Arduino to drive this valve but the issue is - this valve needs a range of current supply (0-165mA for 24V or 0 - 330 mA for 12V) for flow control. How can I have current control using Arduino PWM ? 

Please suggest a solution.

Thanks.

Z

  • 0
    TI__Guru** 114905 points
    Hi Judah,

    Our experts have been notified and should reply soon.
  • 0
    TI__Guru* 93105 points

    Hi Judah,

    Figure 18 in the DRV103 datasheet provides a linear valve driver circuit using a DAC to control the Duty Cycle Adjust pin. The duty cycle would be adjusted to produce a PWM train that has an average current value equal to the level required by the proportional selenoid for a particular opening, or closure. The duty cycle would have to be characterized and correlated to the range of current that the particular selonoid requires.

    The linear valve application circuit doesn't include the Arduino microcontroller use and we haven't developed such circuitry for DRV103 control. That would have to be accomplished by the user.

    Regards, Thomas

    Precision Amplifiers Applications Engineering