Hey there,
I have an oscilloscope that has a fan in it that buzzes on startup and drones like a swarm of bees, and I'd like to fix that. I can't seem to find a 24v fan in that size package outside of used pulls, so I had the brilliant idea that I could take a modern low noise 12v fan which had a similar footprint and same CFM and make some kind of adapt it to work for my application. The thing is I'm not really sure where I am suppose to start.
First thing is, I'm not very sure how this is normally done. Taking a power source of 24v and stepping it down to 12v. I'm also not even sure what kind of shielding requirements might exist given that this is a piece of test equipment and adding any kind of additional circuitry might throw something out of spec.
So if you guys have some input for me, or some reading material to direct me to, that would be most helpful. Thanks!
Existing Unit:
VOLTAGE IN VOLTS AND CURRENT TYPE: 24.0 DC
VOLTAGE RANGE: 12 TO 28 VOLTS DC
PRIME MOVER POWER RATING: 5.0 WATTS
Replacement Unit:
Voltage: 12v
Current: 0.16 A (0.28 max)
Power Consumption: 3.36w