Looking for compact high voltage DC-DC

Joined
Feb 15, 2018
Messages
120
I'm looking for a 144V nominal (180V max) DC-DC converter for a 40s motorbike/scooter.

Not necessarily super powerful (+300W) but small enough for fitting in a bike.

Everything I can find doesn't go high voltage enough or is huge. Any tips?


Thanks
Tilman
 
TilmanBaumann said:
I'm looking for a 144V nominal (180V max) DC-DC converter for a 40s motorbike/scooter.
What output voltage? And what current needed?

Many Meanwell supplies will accept inputs down to 127V DC and go up to 370V or so DC. Look at their spec sheet.
 
Output 12V ~30A

The MeanWell RSD series stops at 160V, and it would be quite a pain to weatherproof that.
The SD Series also doesn't seem to go to 144V only. May I ask which model you meant?

Before I decided to got to 40S I used https://eveurope.eu/en/product-category/dc-dc_inverter-en/450-watt-dc-dc-omvormers-en-2/

PS: Totally different approach. https://www.mouser.de/ProductDetail/Vicor/DCM4623TC8G16F0T00?qs=sGAEpiMZZMvGsmoEFRKS8Koqt8Pjkl39qhqSjSZTdh3di%2f89i8j4Qg%3d%3d or better http://www.vicorpower.com/products?productType=cfg&productKey=V150A12C400BL
 
TilmanBaumann said:
Output 12V ~30A

The MeanWell RSD series stops at 160V, and it would be quite a pain to weatherproof that.
The SD Series also doesn't seem to go to 144V only. May I ask which model you meant?
ERPF-400-12. 127 to 370VDC in.
 
TilmanBaumann said:
Output 12V ~30A
If this is for lighting/etc., I recommend using 13.5-14v, as that's about what they are actually designed to work with, for all the DOT / automotive / MC stuff. It can make a significant difference in brightness vs only 12v.
 
Good point about the voltage. I should probably do that. (I solved the lead acid battery charging problem with a boost capable LED drive with which I can set max coltage and charge current for my battery)

Also, I somehow forgot to look at the obvious place. Kelly has something.
http://kellycontroller.com/hwz-series-dcdc-converter-144v-to-12v-300w-p-185.html?osCsid=l3snpve5gkc4simjih8ue8lrs4
Perfect fit.
 
Back
Top