• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 28 subscribers
  • Views 392 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Original question:

DRV2510Q1EVM: Could we generate sin wave in DRV2510-Q1EVM

DRV2510Q1EVM: DRV2510Q1EVM

hui yuan
Prodigy 90 points
Part Number: DRV2510Q1EVM

how to adjust the frequency and amplitude of the sine wave?

and how the pwm frequency impact to output?

  • 0
    TI__Guru* 84915 points

    Hi, Hui,

    Welcome to E2E and thank you for your interest in products!

    Please take a look at my responses below and let me know if you have additional questions or comments.

    How to adjust the frequency and amplitude of the sine wave?
    If you refer to the WaveBuilder generator of the DRV2510EVM, the frequency of the sine wave can be adjusted with the time between steps. This option will separate the points the time you think necessary, modifying the signal frequency.

    Regarding the amplitude, the waveform is adjusted from 0 to 100 (being 0 the minimum value and 100 the maximum value of the sinewave). I suggest to use a tool to generate sine wave points:

    https://www.daycounter.com/Calculators/Sine-Generator-Calculator.phtml

    I suggest to configure this tool with a max amplitud of 100 and in decimal format. Remember that the number of points can also affect the frequency of the device.

    And how the pwm frequency impact to output?

    The PWM frequency doesn't have an impacto to the output. The device actually just take the differential result of the analog inputs to work. The PWM switching frequency doesn't have any impact.

    Best regards,
    Luis Fernando Rodríguez S.

  • 0 in reply to Luis Fernando Rodriguez S.
    Prodigy 90 points

    thank you .

    addtional question , the mininal time step is 1 ,100 point is 100ms, I want high frequncy of sine wave, how can i do it?

    about PWM frequency 。 in 2510 evm datasheet, it say

    In the Standard Drive tab, the PWM input frequency can be changed using either a slider bar or by
    manually entering a frequency value. The minimum frequency is 1 Hz and the maximum frequency can be
    up to 65 kHz. The optimum frequency for solenoid operation is less than 200 Hz.

    if the setting should be less than 200hz.

  • 0 in reply to hui yuan
    TI__Guru* 84915 points

    Hi, Hui,

    In order to achieve a higher frequency, you would need to select a low time between the steps (as you mentioned, it can be down to 1). Also, you can reduce the number of points in the link that I provided.

    Regarding your questions about the solenoid operation, I think this depends of the characteristics of your solenoid, but we recommend to use frequencies below 200Hz as you correctly mentioned.

    Best regards,
    Luis Fernando Rodríguez S.