Happy Friday Particle People.
Thought I would share my nonprofessional test on two of the TRACO POWER DC/DC converters.
I first one I bought was the model TSR 1-2450 This unit will bring a DC voltage down from 24V to 5… well almost 5. When powering the Photon via the power shield, not using the terminal block because I am an idiot and bought the 5-volt unit not noticing the power shield accepts 7v to 20v, that is another story. Anyway, powering via the (Other 5 Volt Power Source Input, Next to the USB in) that accepts 5v I would maintain around 4.82 volts. When connecting the battery the voltage would drop to around 4.62 until charged then peak back up to around 4.75. This is all while running an 4-20ma sensor I2C shield and publishing every 60 sec. I added a temperature sensor to the board and the TSR 1-2450 peaked up to around 105 deg when under load.
Then I got a little smarter and ordered the TSR 2-24120 which will accept 15 to 36 VDC and output 12 VDC at 2.0 A max. I am hoping to use this on the Electron that is on order but am testing it with the above scenario. Since the voltage drop is much lower this unit is very efficient. ( I am guessing here) Anyway, this unit is maintaining 12.02 volts to the power shield. I removed the temperature sensor as the unit is not getting above room temperature under load. Even with the battery attached the unit is maintaining 12 volts and has not dropped below.
So in a nutshell that’s what I got. Hope it helps anyone looking to drop some DC voltage.
I bought these on Mouser
The TSR 2-24120 was $12.46 : https://www.mouser.com/ProductDetail/TRACO-Power/TSR-2-24120?qs=NtE2QagKf6T34HiGRDOLrw%3D%3D
If you have any questions please let me know.