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Author Topic: mppt solar battery charger with 300v input?  (Read 1307 times)
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max
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« on: July 03, 2022, 06:53:38 06:53 »

Hi,

Can some one share a mppt solar charger with 300v input from
solar panel, battery voltage is 48v.

Regards
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sohel
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« Reply #1 on: July 06, 2022, 07:51:16 07:51 »

Basic type, Use SMPS power supply input 230v ac, output 48v dc. you didn't mention current. 
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max
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« Reply #2 on: July 06, 2022, 11:11:57 11:11 »

There are 4 batteries with 180ah rating, the required current is 15~20A
the solar panels output power is 1500w max.

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OrciBorg
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« Reply #3 on: July 06, 2022, 01:13:30 13:13 »

Basic type, Use SMPS power supply input 230v ac, output 48v dc. you didn't mention current. 

Sohel good idea. If you use an SMPS as you said, does it basically work the same as an MPPT ?
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zac
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« Reply #4 on: September 12, 2022, 12:11:16 00:11 »

Sohel good idea. If you use an SMPS as you said, does it basically work the same as an MPPT ?

No, a conventional SMPS does not provide MPPT function though it may be possible to modify it to do that. 

BTW, some years ago, I needed to power some sensors from a high voltage supply (a solar array with max open circuit voltage around 300V) and used an off the shelf SMPS power supply to the provide the desired 12V to run the sensors/transmitter.  I was able to run the power supply directly from the solar array as the 240VAC rated power supply could accept at least 340VDC (Vpp of 240VAC). 
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