brushless power to the micros - Page 2 - RC Groups
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Mar 24, 2005, 05:14 AM
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lanre's Avatar
cold you post a diagram of the hall sensor?
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Mar 26, 2005, 10:21 AM
Registered User
That reminds me, I had seen that there was a mistake in the hall sensor wiring in the datasheet. The connection from Hall2 and 3 to the resistor from Vcc is missing in the datasheet. Hall1 is hooked up correctly. Guess this was what your question was about.

Mar 26, 2005, 01:37 PM
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lanre's Avatar
what i ment was how do i identifiy the position of the pin on the hall sensor
And thanks for the correction

Mar 29, 2005, 02:45 PM
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lanre's Avatar
view the data sheet of the ic
Last edited by lanre; Apr 16, 2005 at 01:00 PM.
May 04, 2005, 12:36 PM
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lanre's Avatar
plz can you tell e which of the folloiung is going to the signal point on the reseiver? And on the datersheet you suppliy the motor power seperat how do i do it?
May 05, 2005, 02:45 AM
Registered User
The terminal marked JMP is the one going to rx. It goes to the mosfet where you would normally connect the motor.

The battery is directly connected to Vm. Vcc needs to be around 5V, so you need a regulator. The current needed is very low, so you can use any light weight regulator or even a zener.

-- Rajesh
May 05, 2005, 12:25 PM
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lanre's Avatar
i dont undersatnd it cos i have a 2 channel rx but i dont know how to conect it

May 06, 2005, 03:36 AM
Registered User

It would be better if you describe what kind of receiver you have and what its outputs are.

The circuit I gave works for receivers with built in ESC with PWM rate in kHz range. If you have something else, you might need to redesign the low pass filter. Basically what you need is a differential signal proportional to the throttle applied between EC and ECR pins. If you need more help, you need to give details about your rx.

-- Rajesh
May 14, 2005, 12:42 PM
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lanre's Avatar
well my receiver dose not have a built in ESC
Dec 11, 2005, 06:16 PM
Professional Crasher
Originally Posted by Zlatko
Thanks Rajesh,
Fair enough about the PIC based brushless ESC. I guess I can dream
The controller chip from my HD is a Texas Instruments TLS2251 , I googled and searched TIs site but no joy. Does anyone know more about this chip?

Me, I'm looking for a new power-FET for a UPS and a decent ESC I can build into a rebuilt computer fan. I would like to build a decent fan for, maybe, an F-18 EDF jet. ...that and have me a high-powered (1400VA) UPS. 4 IRFZ-46's are used in the inverter for this thing, and they've all blown!
Mar 21, 2007, 12:55 PM
Registered User

rewound CD-ROM motors

Hi, I am new around here. I was wondering if this controller would work with rewound CD-ROM motors like the ones you can find at

If not, does anybody know how to simply modify the controller in order to make it able to do so?


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