Choosing the right Inductor for aftermarket inverter motherboard

Fabian
Fabian Registered Users Posts: 136 ✭✭
edited November 12 in Off Grid Solar & Battery Systems #1
I am rebuilding my 48v 10,000 power jack split phase inverter that uses a EI type transformer by installing a aftermarket pure sinewave inverter motherboard.
The problem i am facing is that i am not sure which size amp and UH inductor to use because this is a requirement for installing the new board. 
The inductor will decrease the standby current of the  motherboard but u have to choose it correctly for it to work good.
Please take a look on the motherboard and also the size inductors in the links below and tell me which size inductor i should use.
https://www.aliexpress.us/item/3256810005635519.html

(note: I have shorted the above two links... The longer links sometimes contain "login" information and such from the original poster... -Bill B moderator)
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  • BB.
    BB. Super Moderators, Administrators Posts: 33,718 admin
    #2
    One possible idea--If you have longer periods of low/standby power usage (LED Lighting, Security System, etc.)--Install a second smaller AC inverter to power just those loads --was save running the larger inverter for those "large/optional" AC loads.

    In the 'olden days', there were not many "low power" 48 VDC inverters out there... Today there are quite a few options.

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
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  • Fabian
    Fabian Registered Users Posts: 136 ✭✭
    #3
    BB. said:
    One possible idea--If you have longer periods of low/standby power usage (LED Lighting, Security System, etc.)--Install a second smaller AC inverter to power just those loads --was save running the larger inverter for those "large/optional" AC loads.

    In the 'olden days', there were not many "low power" 48 VDC inverters out there... Today there are quite a few options.

    -Bill
    I already know about that. I just want to rebuild the inverter asap but want to purchase the inductor but confused as to what size to pick. Please help me guys. I 
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  • Jackielei
    Jackielei Registered Users Posts: 5 ✭✭
    #4
    Without the specific technical specifications (datasheet) for your new inverter motherboard, anyone who suggests a specific inductor value (µH) and current rating (A) is making a blind guess. Using the wrong inductor can lead to immediate failure (burning out the MOSFETs on the board) or poor performance (low efficiency, overheating).
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