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BOOSTXL-3PHGANINV: Controlled Rectifier

Part Number: BOOSTXL-3PHGANINV
Other Parts Discussed in Thread: INA240

Hello,

If we use a generator to create a 40V three phase AC voltage. Can we use BoostXL-3phGaNInv to rectify this to 48VDC? If so what is the expected ripple at the DC side? 

In that case we should be able to the output DC level. Correct? If we reduce the output to 20VDC what is the expected ripple?

Regards 

Sam

  • Hi Sam,

    The board by itself is not going to accomplish what you want; you’d have to come up with the control algorithm and hardware. In this board, the current sensor INA240 has a limited negative common mode range of -4V. This may also limit its suitability for your mission.

    The board was not designed for and operated as a converter; therefore our ability to help is likely limited. However, if you have a rough plan/schematic, maybe we can provide a second opinion.

    Regards, Guang

  • Hi Guang

    Thanks for your answer.

    1. You say we need to come up with the control algorithm and hardware. Somehow we will manage that control algorithm. What is the main hardware that we need (apart from the limits you said is imposed by INA240 and probably capacitor(s) bank redesign)?
    2. If we come up with correct rectification control algorithm we should be able to control both the output DC voltage level and the power factor….correct?
    3. If we come up with correct rectification control algorithm what is the expected DC voltage ripple level for the given hardware

    Regards

    Sam

  • Hi Sam,

    We didn't attempted to design or operate this board as a converter; therefore any answers provided are based on best guess and should be considered as good-will opinion only:

    1 I think you may need a micro controller. Not sure if the one that operates this board will work for you.

    2 I agree, but please consult with an ACDC expert.

    3 We have no relevant information on this topic, sorry.

    Regards, Guang