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Topic: Stepping down 12V Power Supply to 9V at high amperage (20+ Amps) (Read 76 times) previous topic - next topic

jeggv

Hello, in my project I am using a power supply rated at 12V, 0-60A. I will only be drawing around 20A.
My components work at 9V. Is there an easy/cheap way to do this?
I've been looking at voltage regulators but I can't seem to find one that works with that many amps.

herbschwarz

Hello Jeggv,
Am I understanding you correctly? You have
a power supply that can deliver 12V @ 60A
but you want 9V @ about 20A for your
project. Can you show us a schematic
diagram of the power supply you have?
My thought is that its internal reference
or feedback loop can be revised to change
the output voltage to 9 volts. Then that
would be the easiest/cheapest way to do
that.
Herb


jeggv

Hello Jeggv,
Am I understanding you correctly? You have
a power supply that can deliver 12V @ 60A
but you want 9V @ about 20A for your
project. Can you show us a schematic
diagram of the power supply you have?
My thought is that its internal reference
or feedback loop can be revised to change
the output voltage to 9 volts. Then that
would be the easiest/cheapest way to do
that.
Herb


This is the power supply I am using:
https://www.amazon.com/dp/B01LZ4QXLH/ref=sspa_dk_detail_2?psc=1&pd_rd_i=B01LZ4QXLH
It only has 5% adjustable voltage.
And yep you're understanding correctly.

Thank you Herb

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