Kodin
1 kW
I got bored and took the case off my Sabvoton 48V controller. I was curious what sort of components were inside. Guess what? 24 Infineon 4110's, and 100V-rated caps!
Photo dump below:
The two black things around two of the phase outputs look to be inductive pickups for sensing back-EMF. Interesting design.
Dat heatsink...
100V rated caps!
The springs cover it up, but it's 4110 Infineon's. (I lifted one of the springs to double-check, I just couldn't balance the camera, controller, light, and prying tool all at the same time).
Everything seems to be very well silicone-potted so that vibration won't damage components. Also note the rubber isolator between the metal post and the PCB. The PCB itself isn't actually screwed down at all, even though there's provisions for it. I wonder why?
Also noted, though there's a point for grounding to the heatsink, they seem to have opted not to install it. Not necessarily a bad thing, just means the heatsink is electrically isolated from any of the internal circuitry.
Again, no mounting screws used to anchor the board.
Here's a funny one! They scraped the labelling off of all the IC's other than the FET's:
The whole thing is VERY impressively sealed, rugged, and generally well-built. Hope you enjoyed the pictures!
Photo dump below:
The two black things around two of the phase outputs look to be inductive pickups for sensing back-EMF. Interesting design.
Dat heatsink...
100V rated caps!
The springs cover it up, but it's 4110 Infineon's. (I lifted one of the springs to double-check, I just couldn't balance the camera, controller, light, and prying tool all at the same time).
Everything seems to be very well silicone-potted so that vibration won't damage components. Also note the rubber isolator between the metal post and the PCB. The PCB itself isn't actually screwed down at all, even though there's provisions for it. I wonder why?
Also noted, though there's a point for grounding to the heatsink, they seem to have opted not to install it. Not necessarily a bad thing, just means the heatsink is electrically isolated from any of the internal circuitry.
Again, no mounting screws used to anchor the board.
Here's a funny one! They scraped the labelling off of all the IC's other than the FET's:
The whole thing is VERY impressively sealed, rugged, and generally well-built. Hope you enjoyed the pictures!