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TL494: Can you recomend full bridge PWM controller for single phase inverter?

Jaemyeong Hwang
Prodigy 70 points
Part Number: TL494

Hello,

I am finding Sine PWM controller or circuit.

Already I made 390V PFC power stage and then need to PWM controller for convert 390VDC to 220VAC.

I would appreciate it if you could recommend a suitable device or reference design.

Thanks.

  • 0
    TI__Expert 3070 points

    Hi Jaemyeong,

    Thank you for your question. You have TL494 already listed in the title of the question. Are you using this PWM controller for the DC/DC conversion or are you looking for another device? I will also need to know if this is isolated or non isolated DC/DC conversion and the output power.

    Webench Power Designer is a great online resource you can use. You can input your Vin, Vout and Iout requirements into the tool. Then, different reference designs with different devices will be shown along with each design's advantages. You can refer to this tool first. For isolated topologies, you can also reference the table below.

    Regards,

    Jonathan W

  • 0 in reply to Jonathan Wong
    Prodigy 70 points

    Hi Jonathan,

    Thank you for your reply.

    Unfotunately, I couldn't find suitable devices in the Webench Power Designer.

    Truly, it was not opened just showed "Service Unavailable".

    Anyway, I am finding DC 390V to AC 220V full bridge inverting controller.

    Power is about 800~1000W and without using Trans and MCU.

    so maybe it is non-isolated solution.

    I would appreciate it if you could recommend a suitable device or reference design.

    "DC to AC inverter, Full bridge  PWM controller, SPWM"

    Regards,

    Jaemyeong H

  • 0 in reply to Jonathan Wong
    Prodigy 70 points

    Hi Jonathan,

    I just tried Webench Power Designer but there is no AC output option.

    I need to PWM controller for single phase full bridge DC to AC inverter.

    "390VDC to 220VAC"

    Check please.

    Regards,

    Jaemyeong

  • +1 in reply to Jaemyeong Hwang
    TI__Expert 5425 points

    Hi Jaemyeong,

    Unfortunately TI does not have an analog simple solution to create an AC output from a PFC.

    You will need to use a micro controller or transformer based solution.

    Thanks,

    Robert 

  • +1 in reply to Robert Taylor1
    Prodigy 70 points

    Hi Robert,

    Thank you for your reply.

    I will check micro controller.

    Regards,