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nano CP X Blade nano CP X Helicopters Information and Help |
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08-22-2015, 09:57 PM | #1 (permalink) |
Registered Users
Join Date: Jul 2015
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Noob Mistake With Nano
I just ordered a brushless motor but with one problem. I only ordered the motor and not the ESC xD How important is it for the brushless motor and if I NEED to get it, where and how much?
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08-22-2015, 09:58 PM | #2 (permalink) |
Registered Users
Join Date: Feb 2013
Location: Fargo ND (Home of the NDSU Thundering Herd)
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It is needed to make the brushless motor work...it will not work without it
http://www.ebay.com/itm/BLADE-Replac...item233b0dae76 |
08-26-2015, 10:10 AM | #3 (permalink) |
Registered Users
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Why do brushless motors need a speed controller when brushed motors do not?
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Blade 500x, 450x, 300x, 200srx, MCPX BL, DX7 Courtesy Clerk at Safeway, Lonetree! |
08-26-2015, 10:59 AM | #4 (permalink) |
Registered Users
Join Date: Nov 2012
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The ESC for the brushed motor is built into the 3 in 1 board.
A brushless motor needs a different kind of ESC. |
08-26-2015, 04:11 PM | #5 (permalink) | |
Registered Users
Join Date: Apr 2015
Location: Ohio
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Quote:
A brushless is a very small 3 phase motor, hence 3 wires. The BL ESC basically converts DC into a pulsed and shaped sine wave.
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08-26-2015, 05:12 PM | #6 (permalink) | |
HF Support
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Quote:
A brushed motor just needs a DC current and uses mechanics (brushes) to shift current between the poles connected to the main shaft as it turns. A brushless motor, the magnets are connected to the main shaft and the current must switch electrically around the static part or the motor that is fixed to a frame. The 3 wires are to provide an offset AC current to each pole. The speed part comes by pulsing the current on and off very quickly (like a dimmer switch). On a brushed motor, it pulses exactly like dimmer (on,off). On a brushless motor, tricks with timing the current to the poles is also employed (as it is already switching between 3, so it can go on shorter and off longer).
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08-27-2015, 02:49 AM | #7 (permalink) |
Registered Users
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ArchmageAU nailed it
The brushed mechanics used in the brushed motors is called the commutator. Electromagnet pole switching is done mechanically. So just applying DC power is sufficient to get the motor spinning. In brushless motor there is no mechanical commutator so electromagnet pole switching needs to be done electronically by supplying Pulsed power to the 3 phases with proper timing to get the motor spinning. Try disconnecting one of the wires and the brushless motor won't rotate.
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