The MC33035 is a high performance second generation monolithic brushless DC motor controller containing all of the active functions required to implement a full featured open loop, three or four phase motor control system. This device consists of a rotor position decoder for proper commutation sequencing, temperature compensated reference capable of supplying sensor power, frequency programmable sawtooth oscillator, three open collector top drivers, and three high current totem pole bottom drivers ideally suited for driving power MOSFETs. Also included are protective features consisting of undervoltage lockout, cycle−by−cycle current limiting with a selectable time delayed latched shutdown mode, internal thermal shutdown, and a unique fault output that can be interfaced into microprocessor controlled systems. Typical motor control functions include open loop speed, forward or reverse direction, run enable, and dynamic braking. The MC33035 is designed to operate with electrical sensor phasings of 60°/300° or 120°/240°, and can also efficiently control brush DC motors
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Alternative motor windings and drive schemes
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The MC33035 is a high performance second generation monolithic brushless DC motor controller containing all of the active functions required to implement a full featured open loop, three or four phase motor control system. This device consists of a rotor position decoder for proper commutation sequencing, temperature compensated reference capable of supplying sensor power, frequency programmable sawtooth oscillator, three open collector top drivers, and three high current totem pole bottom drivers ideally suited for driving power MOSFETs. Also included are protective features consisting of undervoltage lockout, cycle−by−cycle current limiting with a selectable time delayed latched shutdown mode, internal thermal shutdown, and a unique fault output that can be interfaced into microprocessor controlled systems. Typical motor control functions include open loop speed, forward or reverse direction, run enable, and dynamic braking. The MC33035 is designed to operate with electrical sensor phasings of 60°/300° or 120°/240°, and can also efficiently control brush DC motors
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Lets do one first with no Ic's at all. U don't even need to be an engineer. Can you follow instructions or a schematic. You could use this to run a motor on a bench and ruin it not your ESC pushing the limits. There are already free PCB templates etc. So you could etch and sketch with a laser jet mask and a clothes Iron and make it just like I did 30 years ago. I'd like to look at this solid state commutation on the scope. Itz interesting. There is nothing here but 3 N channel mosfets a few resistors a pot and diodes. The Geber files are also available so you import these to a CAM app like copper cam and it will generate the G code for your PCB engraving mill. There are alot of ways to go about manufacture of the pcb or bridge if you want that. U can also solicit a board haus.
Thanks for your time and patience.
Hubert
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You
You need the right software and compilers, which I have, to flash these standalone MCU's with the appropriate FW that can carry out advanced motor control or its just a piece or hardware with no brain, but as you can see you don't necessarily need a brain...🤯 with pre loaded IC's or solid state rectification that can drive the 6 step machines very well. Or you can go out here and make a fool of yourself on a forum with fallacy.
Id like to share here a few things about electric motors and inverters that I have been exposed to over the years. Hope there will be interest here (filedata/fetch?filedataid=91738) Thank you. THE REAL 1BOHO.
That's it. I have things to do.
Have a good day.
Hubert
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Here's the BOM for the solid state commutation. If it all cost more than 15 dollars I'd be surprised. You could use FETs in the same family that sink more current. You can always add bulk capacitance to the B+ and B- rails to eliminate ripple.
Here is a "DUMM" non thinking solid state BLDC drive. It has no brain at all.
QTY.
1 1kohm resistor
3 10Kohm resistors
1 100 kohm potentiometer
6 1N4007 diodes
3 N channel mosfets ( IRFZ44N)
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The one way to integrate to a brain it is to make the speed pot digital and then you can control it with basic mcu that can then interpret things like current shunts or optical encoders and make changes to the current delivery via its programmed and hardware supported AI.
Most fairly modern MCU's and development platforms like Aurduino can interpret and generate servo pulse train. But there are also standalone circuits that will convert servo pulse to pwm and vice versa. That's left up to the creativity of the engineers and the overall effectiveness of the ideas implimented.
Microsoft Word - DS1803.doc
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With a dual channel digital pot you will have more precise control of the bridge with button presses or AI control and could face the bridges at one another 180 degrees out or run 1 bridge to each stator half. I hope class isn't too difficult for your friends. You can pull it all in to precise control with a few low side current shunts and discrete op amps talking to the MCU through an ADC input. Please understand that ignorance really has no place here.
Thank you
Hubert
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I'm going to face the two solid state drives 180 apart and run a dual channel pot. I've also ordered five 6 step BLDC Logic based IC and five hall decoder C's from Motorola. To top it off I've also ordered the 100Volt GanFets to build the floating zero point space vector controlled FOC drive that is agnostic. Currently there is not one on the market. The gate charge on the GaN device is only 8 NC. You can stack alot of these girls in parallel and they can run to 10 megahertz switching. The also have a large thermal pad and gate smart sense. Its a 100 volt 90 Ampere GaNFet Would a 1000 amperes peak at 100 volts be enough?
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I guess thatz all you and the boys can do is wind conventional wye motors with 69% eta's at the applicative load points Ralph?
You could probably pull off a 1 sided solid state device in SMT fairly easily and be quite compact. These drives should go great with motors that will exceed HK5050 performance. They will sink more current and commutate faster than a YGE320 with its dated Turnigy brain... Its almost as old as solid state commutation....but it isnt faster than it from the 60s or a logic based commutation IC from the 90s. GaN devices in 2025 are also excellent for synchronous rectification and space age chargers. YGE 320 has the worst AFW. The Kosmic is superior.
ITZ FF
Fallacy Free....
Thank you,
Hubert
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Hi Ralph,
I see you and your boys finished that 5o5o and returned to class front row....👀Copper Cam generates the G code that feeds the PCB Mill or 3dp XYZ gantry. I want you and your friend to see this simple circuit every real hobby drive tinkerer has already built before a plethora of buildable programmable MCU controlled BLDC trap or SVC FOC drives. In turn to avoid all fallacy about the subject matter I'm waiting for the speed clan and wunderbread 👻 to simply wind a 12N10 or 14P hybrid and or mount a few hall switches on the back of a 12N10P motor with a 4 pole trigger wheel and attach it to an already manufactured castle drive. The Copper CAM came with the $2,500.00 Redonda PCB MILL. If your friend has a mill ready and know how to set up the workpiece for these operations. I can send you the G code now. Its easy to TALK on a forums when people are not held to a discussion standard where you have to display that you can even wind it and have tested it to talk. I can program set up and operate every bit. I'm formally trained and certified there as well.
Thank you for your time and patience,
Hubert
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You can see here from the uneven tooth width work what the winning motor topology and excitation scheme is analytically before it was ever proven in discrete labs all over the world at over 70 universities and billion dollar corporate research facilities.
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Hi,
and how right winding motors ? https://www.research-collection.ethz...2/ETH23292.pdf .
and what about fluxbarrieres , https://www.unibw.de/elapsed/teilpro...schen_maschine , by Prof. Gerling and how we do.
Happy Amps Christian
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LOL....Originally posted by Chxpress View PostHi,
and how right winding motors ? https://www.research-collection.ethz...2/ETH23292.pdf .
and what about fluxbarrieres , https://www.unibw.de/elapsed/teilpro...schen_maschine , by Prof. Gerling and how we do.
Happy Amps Christian
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As stated no one on the German social media typing there or here has wound a 1210P or 14 P machine and tested it or they wouldn't be typing LOL! The articles have absolutely nothing to do with that and the wind is not from DR Gerling so the article that been posted umpteen times is absolutely irrelevant to which system and winding style generates the most torque and least ripple. I dont need an espace article to know what the machines and drives do because I own several that I have wound and have all the data.
back to building the drives that i cant
Im my own engineer with a REAL degree i don't have to lean all over Dieters papers or listen to social media from people that haven't done anything with a hybrid winding For the understanding of basic waveforms and commutation techniques. I live it in real life everyday. Were building here a well beyond the simple injection of articles into a thread. If conceptualist don't build it and put it in a hobby machine the hobbyist don't give a rats ass about it. That's what all the locks are about. A clear mind could see that.
A real electrical engineers explanation about wave form crest factor is much more relevant to hobbyist that were mislead by post about sinus waveforms over a trap on social media. Too bad they dont seem to understand Dieters papers about it. I have his entire math book and a direct line of communication to Him . These may be some of the reason I know the 12N10P work from him is off the shoulders of other engineers that are not European but Asiatic jus like like "POCBOY"
The difference in professionalism and ability for Rogerian debate is tremendous with Dr Gerling and the Bundeswehr University who manage all of that quite well without racial epithet....
They'd rather see a solid state drive for their benchthat can be built for pennies on the dollar. That's why you here
LOOKIN....👀
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