(original thread here)
- Lower build and BOM cost
- TO-220 FETs allow for big heat sink attachment for better thermal performance
- SMD components no smaller than 0805 make hand assembly practical
- Added ON/OFF capability to turn off control circuitry when controller is not in use. A simple mechanical switch will achieve this when connected to the “ON/OFF” 2-pin header.
- Can fit in typical “350W” ebike enclosures
- Can fit in Hammond 1590b enclosures
- Runs cooler than other VESCs
Disadvantages (that I know of)
- Larger than original VESC. Cheap VESC is 45mm x 92mm
- Higher profile with TO-220 package FETs
- Additional assembly steps to beef up high-current traces. 2 layers of 1oz copper can’t handle the current flowing through during operation. Assembler will have to apply wire/solder wick/bus bar to the exposed Power, Ground, and Phase traces that you can see in the “bottom” image.
All this wouldn’t be possible without Benjamin Vedder’s hard work to build on. Please consider supporting him for his efforts through the link below.
Building off of Benjamin’s shoulders isn’t free either. It takes time, money, and lot’s of analysis in the lab to do it right. Anything you can toss my way helps me a ton in ordering materials for R&D.
GitHub repository for the gerbers, schematics, and BOM