This is for the bare PCB only, no components are included. This evaluation board consists of 3 high power half-bridges that can output up to 5A peak, or 4A continuous (depending on heatsink). It h...Read More…
This is for the bare PCB only, no components are included.
This evaluation board consists of 3 high power half-bridges that can output up to 5A peak, or 4A continuous (depending on heatsink). It has been designed with a large copper ground plane on the bottom that functions as a heatsink. If the driver IC heatsinking requirements can not be met by the copper layer alone, the bottom of the board could be fastened to an external heatsink. There is circuitry on board to amplify the winding current, and for sensing the back EMF voltage to assist in commutation.
Note that this driver will not work standalone, and requires a microcontroller to output 3 PWM signals in the proper sequence, in order to make the motor run.
Hand assembly of an unpopulated PCB will be impossible without access to a reflow oven, or hot air tool, due to the large power pad on the bottom of the driver IC. Don't purchase this product if you only have access to a soldering iron.
Fully assembled boards can be purchased here: Brushless DC (BLDC) Motor Driver.
I designed this board because I couldn't find an evaluation board for this driver IC, and I wanted to experiment with a BLDC motor. At the time, I was working on a POV LED display, and thought a BLDC motor might be a good solution for spinning the prop. Alas, the POV display project was never completed, but this is a useful board regardless.
A good example of how to drive a board like this using an Arduino can be found at: BerryJam.
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I am a self employed consultant, specializing in hardware, firmware, and software development. I have been experimenting with electronics since I was a young child, and have been developing industrial instrumentation products professionally since 1986.