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Pulse-width modulation

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adrianbyrne
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adrianbyrne
Asked: December 12, 2023In:
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Hello,We’re presently running our TLE9180D31 3-phase bridge at 20kHz PWM frequency and would want to increase it but there’s no specification in the device datasheet for this parameter, is there any specification or application information anywhere differently about this parameter ...Read more

Hello,

We’re presently running our TLE9180D31 3-phase bridge at 20kHz PWM frequency and would want to increase it but there’s no specification in the device datasheet for this parameter, is there any specification or application information anywhere differently about this parameter or is this an Infineon apps engineer question?

Thanks,

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InfineonpowerpwmTLE9180D31TLE9180D31QKXUMA1
  1. Julian White

    Hi @Adrianbyrne, The maximum frequency depends on your external MOSFET, so this isn't a restriction for our device. The TLE9180D is typically designed for a maximum total gate charge of 300nC per output stage (20kHz). If PWM frequency, However, total gate charge or number of driver MOSFETs increasesRead more

    Hi adrianbyrne,
    The maximum frequency depends on your external MOSFET, so this isn’t a restriction for our device.
    The TLE9180D is typically designed for a maximum total gate charge of 300nC per output stage (20kHz).
    If PWM frequency, However, total gate charge or number of driver MOSFETs increases, it’s recommended to use a booster IC, for example: AUIRS08152S.
    Best Regards,
    Julian White

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nidhi singh
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nidhi singh
Asked: September 15, 2023In:
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Hello, Not sure that the product I am looking for exists. It should behave like an LED driver but after looking through different LEDs I did not find a product that meets my needs.Can drive 1…. 15 LEDs connected in series Have ...Read more

Hello,

Not sure that the product I am looking for exists. It should behave like an LED driver but after looking through different LEDs I did not find a product that meets my needs.

  • Can drive 1…. 15 LEDs connected in series
  • Have a possibility to change current through LEDs (not by PWM!)
  • Have the possibility to switch ON/ OFF LEDs rapidly. to ensure bitrate 200kb/ sec

Does such a product exist?

Thanks.

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driverledpwmseries
  1. [Deleted User]

    Hello, Right, existing LED drivers all have PWM engines. It depends on the LED, some have Vf = 1.8, and some have 3.5V. So, 15x3.5 = 52.5 V in direct mode. Also current, 20 mA or more? For low current low voltage OPA may be an option, or OPA buffered by transistor for high CV. Thank You

    Hello,

    Right, existing LED drivers all have PWM engines.

    It depends on the LED, some have Vf = 1.8, and some have 3.5V. So, 15×3.5 = 52.5 V in direct mode. Also current, 20 mA or more?

    For low current low voltage OPA may be an option, or OPA buffered by transistor for high CV.

    Thank You

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Linto
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Linto
Asked: July 27, 2022In:
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I am working with PWM complementary on Renesas RA2L1 , please help to share example code for this.

I am working with PWM complementary on Renesas RA2L1 , please help to share example code for this.

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pwmPWM Complementary coderenesas ra2l1
  1. Shivali Singh

    Hi, Please find the below step of working PWM Complementary code.   void hal_entry(void) { /* TODO: add your own code here */ R_GPT_Open(&g_timer0_ctrl, &g_timer0_cfg); R_GPT_DutyCycleSet(&g_timer0_ctrl, 120 , GPT_IO_PIN_GTIOCB); R_GPT_DutyCycleSet(&g_timer0_ctrl, (240-120), GPTRead more

    Hi, Please find the below step of working PWM Complementary code.

     

    void hal_entry(void)
    {
    /* TODO: add your own code here */
    R_GPT_Open(&g_timer0_ctrl, &g_timer0_cfg);
    R_GPT_DutyCycleSet(&g_timer0_ctrl, 120 , GPT_IO_PIN_GTIOCB);
    R_GPT_DutyCycleSet(&g_timer0_ctrl, (240-120), GPT_IO_PIN_GTIOCA);

    //R_GPT_PwmOutputDelayInitialize();
    R_GPT_Enable(&g_timer0_ctrl);
    R_GPT_Start(&g_timer0_ctrl);
    while(1)
    {

    }

     

     

    Thanks

    Shivali

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Rutuja
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Rutuja
Asked: June 22, 2022In:
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I am using EK-RA2E1 board and I want to drive a DC Motor with L293N Motor Driver with PWM. Is there any source that can help with this problem?

I am using EK-RA2E1 board and I want to drive a DC Motor with L293N Motor Driver with PWM. Is there any source that can help with this problem?

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dc motor drivedc-motorEK-RA2E1MOTOR DRIVEpwm
  1. pallavi sharma

    As the DC motor is the simple one, it doesn't require any tricks to control. You just configure two PWM channels (or a single channel but with switchable outputs).

    As the DC motor is the simple one, it doesn’t require any tricks to control. You just configure two PWM channels (or a single channel but with switchable outputs).

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pallavi sharma
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pallavi sharma
Asked: June 16, 2022In:
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While using RA2L1AB3CFL processor. I want to produce PWM and Counter at the same time on this processor. I need to both keep time and create PWM. In the FSP configuration section, the PWM and counter settings are different. So ...Read more

While using RA2L1AB3CFL processor. I want to produce PWM and Counter at the same time on this processor. I need to both keep time and create PWM. In the FSP configuration section, the PWM and counter settings are different. So I open two of the r_gpt stacks. Although I open it, I cannot set it in different properties. Can anyone help me how can I do this? PWM and counter need to run continuously. Unfortunately, it is not open and closed.

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counterpwmRA2L1AB3CFL processorRenesas Microcontroller
Anonymous
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Anonymous
Asked: May 16, 2022In:
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Any reference circuit for a cost effective digital converter to analog converter ? input 0-3 V DC PWM input, output 0-10 V DC.

Any reference circuit for a cost effective digital converter to analog converter ? input 0-3 V DC PWM input, output 0-10 V DC.

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analog convertercircuitDigital converterpwm
  1. [Deleted User]

    Hi , Have you checked Renesas RA MCU for DAC , this MCU having inbulit DAC with 16 bit SAR ADC     RA2A1 - 32-bit Microcontrollers with 48MHz Arm® Cortex®-M23 and Integration of 24-bit Sigma-Delta ADC | Renesas

    Hi , Have you checked Renesas RA MCU for DAC , this MCU having inbulit DAC with 16 bit SAR ADC

     

     

    RA2A1 – 32-bit Microcontrollers with 48MHz Arm® Cortex®-M23 and Integration of 24-bit Sigma-Delta ADC | Renesas

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