Hi All, I am new to this forum and found many interesting projects and ideas to run BLDC motors and implementing the Simple FOC algorithm. I have developed a simple BLDC driver circuit board using N-Channel Mosfet and half-bridge gate driver IC. I am using timing interrupt along with software inte…

[image] Jan_Donker: the driver-chip needing his own power-rail, but according to specs it needs 10 to 20 volts. @Jan_Donker Perhaps. The specs say this: VCC Low side and logic fixed supply voltage -0.3 to 25 Vlo Low side output voltage -0.3 to VCC + 0.3 VIN Logic input voltage (HIN & LIN)…

Many thanks for correcting the PCB. Yes, I will be using a separate power rail for Mosfet and the max Volage which I will apply is going to be 18 V.

IR2103STRPBF is the same price but Vcc is 5 to 20v and has internal dead time .

If I had knew about the Dead time from beginning I would have ordered these. Thanks for telling about them, I will order them as well. Currently, waiting for the new PCB.

As @Jan_Donker pointed out these are not the right drivers to begin with, you will be a lot better off with integrated drivers explicitly designed for BLDC applications, such as the TI DRV8* series. Problem is they are not in stock at JLCPCB.

You can’t beat JLCPCB for making cheap boards, but you can do your own soldering. That enables you to buy components anywhere in the world. I’v never used their board-design software either. I like KiCAD. In KiCAD you can choose or modify your own footprints for hand-soldering. And you do the routi…

Yes, I checked DRV8 series along with Infineon IFX007T but both are out of stock at the moment. Although, I have ordered an eval board from DRV83 from Aliexpress but still haven’t received it. Thanks for telling about the DRV8 series.

I think JLCPCB we have option for redesigning on our own footprint and route by our self. Plus I only order the board rest do the soldering and placing the component by myself. JLCPCB is good.

@MoidKhan depending on other variables (motor, torque, current), an IR2101 might fit your use-case. I’ve done some experiments on a cheap BLDC controller based on IR2101 and manage to run two hoverboard motors with hall sensors on one STM32 Blue Pill (one is driven by hw PWM, and the other by sw PWM…

its less than 1us, he will be fine. he should be more concerned with rise/ fall times, but they are pretty fast. something for him to learn why its important.

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Simple FOC implementation of Half Bridge Gate Driver

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