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3.7 v dc to 220v ac

Jian Xu2
Prodigy 40 points

Hi There;

Wonder if TI has any product to invert 3.7V DC to 220V AC. The input current will be 10A, 20A, 30A and etc...

Would appreciate recommendation of the solution.

Best Regards,

Jian Xu

jianxu@xtronica.no

  • 0
    TI__Expert 3356 points

    Hi Jian,

    We will need some time to think about your request and find the suitable solution for you, could you tell us your application, what is the product use for?

    Thanks.

    Best Regards,

    Ryan Tan

  • 0 in reply to Ryan Tan
    Prodigy 40 points

    Hi  Ryan;

    Thank you for your reply. We need this to use 3.7V 18650 Li-Ni batterys to drive small 220V ac motor ie 40W, 90W, 200W and up to 400W as backup power to drive the electric actuator in case the main supply power is down. it only needs to work in very short period time to close up the valve (90 degree turn within 30 seconds time).

    therefore we need the 3.7V dc to 220V ac invert and input current will be quite big from 10A up to 100A.

    if it could not be managed by one ic chip, wonder if TI has some products to combine ie from dc 3.7V to dc 12V dc and then from 12V dc to 220Vac  via inverter and etc...

    would appreciate any input/suggestiion.

    By the way, may i have your email/phone contact detail to correspond with.

    Best Regards,

    Jian Xu

  • 0 in reply to Jian Xu2
    TI__Intellectual 2020 points

    Hi,

    basically, it should have a boost up stage and an DC/AC stage. for proper AC output voltage regulation, it is better to use digital control such as TI C2000 family to build a DC/AC stage.

    for boost up stage, push pull can be used here, i have done some search on the TI reference design to if there is some good fit for boost up stage, below is 250W design that you can refer to.

    https://www.ti.com/tool/PMP11186

  • 0 in reply to Max Wang1
    Prodigy 40 points

    Hi Max;

    Thank you for your input and your suggest might resolve my issue. Will give a try.

    Regards,

    Jian Xu