Author: Jan

New 60V 100A BLDC Controller

I have so many motor controller designs that I need to give them names, so I use MC + <driver type> + <Max Voltage> + <Max Current>. MC2P60V100A means 3-Phase, 60V (8-60V in this case) and 100A currents. The drawing below is an early draft.   I decided to use DRV8301 or DRV8302. These are…

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MC4X15A Revision 1.1

The Half H-Bridge channels are working very well. I initially had some issues with IR2101 as I do not have pull-up’s. but moving to IR2103 this one have logic to prevent short-cut. This is however a weakness, so I need to add a pull-down resistor so I know the state of the MOSFET before the…

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IRF7862 from Arrow

Looking for a proper source for IRF7862 I realized that none of the sources on AliExpress have sold anything before. And checking Arrow I managed to get them cheaper from there at 0.59 USD each. I also notice that Pololu makes a H-Bridge based on these they claim deliver 15A without heat-sink. I tested 7A…

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Burning MOSFET’s

I got a new batch with IRF7862 and added them to the controller. Had 2 channels with working dodgy ones and 2 channels With New MOSFET’s. Increased the Lab PSU to 24V @ 10A as I tested one of the old “good” channels, moved to one of the new ones assuming it would be safe…

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JK42BLS02- BLDC w/Hall Sensors

This one cost 32.- USD and is JK42BLS02 rated at 4000RPM, 24V and 10.6A in peaks. It also have Hall sensors and are perfect for testing my controller MC4X15A. This has similar dimensions to a Nema17, but mounting holes are located different. This was purchased for testing with MC4X15A as I needed a BLDC w/Hall…

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JY01 BLDC Controller

A JY01 based BLDC Controller cost < 10.- USD and can deliver 500W. They support 12-36V and 15A driving the motor using either Hall Sensors or BEMF. I bought one of these for testing and are quite impressed over what they have done. The Driver area for 3 phases is twice as large as my…

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MC3X3ACAN BLDC Controller

This is a 3D model of my new BLDC Controller “MC3X3ACAN”. 3X means 3 separate Half H-Bridge channels, 3A means 3 Ampere- it is actually 2.5A max with 3.5A in peaks. This design does not include current sensors, but I have Hall Sensors since this is my target and better for low speed applications. I…

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60V/3.3V DC/DC

This just show the routing of the TPS54060 based DC/DC. The upper picture show the actual routing, while the lower show the real PCB once I add the ground plane. I still lack a few details to connect ground to the ground-plane in cases where ground is on a blue (top) lane. In this case…

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Ultra small mains to 5V/1A Module

This module took me by surprise. I thought I had ordered a 5V to 5V isolation module, but realized it is a 240V AC to 5V/1A full PSU unit in a box that is 38mm x 22mm and 18mm height costing 3.6 USD or similar. I actually have a project that need something like this,…

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