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Inverter fan question

Waterworks178

Aug 21, 2022
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Aug 21, 2022
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I have a cheap 12 v to 220v inverter that the fan doesn't come on anymore , though the fan works, I can wire the fan to the 12v input with a thermal switch, my question is what temp would i select as the cut in temp that won't damage the PCB ?
 

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Delta Prime

Jul 29, 2020
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It's too small I can't read it..give me a link will ya
If you wish to have an in-depth explanation
Forced air cooling turn on fan temperature would depend on the specific power dissipation characteristics transistor operational temperature of your final power amplifier stage including the heat sinks.
 

ivak245

Jun 11, 2021
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Jun 11, 2021
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Why not just wire it up to the input full time? The electronics will be nice and cool all the time.
 

Waterworks178

Aug 21, 2022
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I did in fact wire the fan to the battery input , however the battery voltage is variable because its on a solar PV , the fan is now overspeed and noisy, will this work on a 40mm pc fan ?



 
Last edited:

Kiwi

Jan 28, 2013
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What is the maximum input voltage to the inverter from the solar PV?

Need to check it against the inverter specifications to ensure it is not above the 15v maximum limit.
 

ivak245

Jun 11, 2021
118
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I did in fact wire the fan to the battery input , however the battery voltage is variable because its on a solar PV , the fan is now overspeed and noisy, will this work on a 40mm pc fan ?



The fan is probably 12 volts, run it through a 7812 or similar.
 
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