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https://www.ti.com/solution/portable-power-station?variantid=237091&subsystemid=241007

Ray Vincent Aranzaso
Mastermind 18180 points

Other Parts Discussed in Thread: TPS65988, TPS25750

Hi,

Good Day. The customer found what he is looking for. Please help to check the link below.

https://www.ti.com/solution/portable-power-station?variantid=237091&subsystemid=241007

He had to design a similar thing but for a 600W power station.
He should ask at the start about the portable power station.
Now he needs the answer to the following questions.
1: What is the difference between a standalone charger and a bidirectional AC/DC
2: Can he design a 600W portable power station by following the same scheme?
3: Also, he doesn't want to use FAN to control the temperature because it is a low-power station. Is it possible?

Best Regards,

Ray Vincent

  • 0
    TI__Expert 3356 points

    Hi Ray, 

    please check below some comments from my side

    1. standalone charger Portable Power Station normally has external charger/adapter to charge the product battery pack slowly and the portable power station with bidirectional AC/DC can be charged with the integrated bidirectional ACDC which is normally faster. 

    2. you can choose the variant you want to follow, normally we recommend standalone charger portable power station for low power, low cost products.

    3. i think so, if you can control your inverter thermal very well without FAN, that would be very good. 

    Thanks. 

    Best Regards,

    Ryan Tan

  • 0 in reply to Ryan Tan
    TI__Mastermind 18180 points

    Hi Ryan,

    Good Day.

    In standalone, It only charges with a USB C port or Solar panel and outputs AC and DC through USB ports.
    While in Bidirectional, It can charge with USB C, Solar panel, and AC input as well.
    It also outputs DC and AC.
    I will definitely need Bidirectional because I want to charge the battery through AC, USB C type, and solar panel.
    Correct me if I am wrong.
    Also,
    Can you confirm the reference design for this Bidirectional station wattage?
    What is the wattage of this system that reference design is provided?

    Best Regards,

    Ray Vincent

  • 0 in reply to Ryan Tan
    TI__Mastermind 18180 points

    Hi Ryan,

    Good Day. I would like to follow up on the latest customer's query. Thank you very much.

    Best Regards,

    Ray Vincent

  • 0 in reply to Ray Vincent Aranzaso
    TI__Expert 3356 points

    Hi Ray,

    You are correct. 

    Sorry for the delay replying because of holiday. As for the bi-directional ACDC reference design power rating, we targeted on 3kW power level and are working on the GAN based solution for higher efficiency and power density. The design is still on-going and we target to finish the design by 2Q 2023. Let's see how it works by then. 

    Thanks for the patience. 

    Best Regards,

    Ryan Tan

  • 0 in reply to Ryan Tan
    TI__Mastermind 18180 points

    Hi Ryan,

    Good Day. Please see the latest response from the customer. Thank you very much.

    Can I follow the same reference design for a 600W power station?
    Is it safe to follow it prior to its completion on your end?
    I also noticed that some modules don't have associated reference designs that might add in Q2 but I need to complete a prototype within two months for a 600W station.
    I already worked on TPS65988 and tps25750 PD controllers but it will be a new design for me to build a power station.

    Best Regards,

    Ray Vincent

  • 0 in reply to Ryan Tan
    TI__Mastermind 18180 points

    Hi Ryan,

    Good Day. What will be the best reference choice considering a 500 to 600W system? I also want to extend the power of the station later like 1KW or 2KW.
    It would be better if I can keep consistency but the cost is also a major parameter. I don't want to make a 500W system very expensive.

    Best Regards,

    Ray Vincent

  • 0 in reply to Ryan Tan
    TI__Mastermind 18180 points

    Hi Ryan,

    Good Day. Any updates? Thank you very much.

    Best Regards,

    Ray Vincent

  • 0 in reply to Ray Vincent Aranzaso
    TI__Expert 3356 points

    Hi Ray,

    I am not sure if a bi-directional ACDC is a suitable solution for a 500W-600W portable power station if looking at the cost. From technical stand point of view, it is ok to follow the same topology and control strategy but better to choose different transformer and power switches to reduce cost. If you want to reach out to the designer before RTM of the design, please let me know and I can bridge you to him. 

    Best Regards,

    Ryan Tan