Three Phase Inverter - Revision history

Marcin: /* Sensorless Brushless Motor Control */

2020-06-14T23:03:50Z

Sensorless Brushless Motor Control

← Older revision		Revision as of 23:03, 14 June 2020
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	Or you can make a small one to do the same - with limited current, though. - [https://www.instructables.com/id/Make-Your-Own-ESC/]		Or you can make a small one to do the same - with limited current, though. - [https://www.instructables.com/id/Make-Your-Own-ESC/]

	The full open source version is available in the VESC ~~project~~.		The full open source version is available in the [[VESC Project]].

	==Induction==		==Induction==

Marcin: /* Sensorless Brushless Motor Control */

2020-06-14T23:02:07Z

Sensorless Brushless Motor Control

← Older revision		Revision as of 23:02, 14 June 2020
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	Great Scott shows DIY make of VESC (just buy it) - [https://www.youtube.com/watch?v=SPoMvuRxwFw]		Great Scott shows DIY make of VESC (just buy it) - [https://www.youtube.com/watch?v=SPoMvuRxwFw]

	~~, and made his own~~ - ~~but the control feedback via back EMF is not particularly easy. It does work~~, though. ~~Part 1~~ - [https://www.~~youtube~~.com/~~watch?v=W9IHEqlGG1s~~]. ~~And part 2 -~~		Or you can make a small one to do the same - with limited current, though. - [https://www.instructables.com/id/Make-Your-Own-ESC/]

			The full open source version is available in the VESC project.

	==Induction==		==Induction==

Marcin: /* Sensorless Brushless Motor Control */

2020-06-14T22:59:49Z

Sensorless Brushless Motor Control

← Older revision		Revision as of 22:59, 14 June 2020
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	==Sensorless Brushless Motor Control==		==Sensorless Brushless Motor Control==
	Most so-called ESCs (electronic speed controllers) measure the back-EMF and control the motor based on this EMF. [https://learn.adafruit.com/adafruit-motor-selection-guide/brushless-dc-motor-control]		Most so-called ESCs (electronic speed controllers) measure the back-EMF and control the motor based on this EMF. [https://learn.adafruit.com/adafruit-motor-selection-guide/brushless-dc-motor-control]

			Great Scott shows DIY make of VESC (just buy it) - [https://www.youtube.com/watch?v=SPoMvuRxwFw]

			, and made his own - but the control feedback via back EMF is not particularly easy. It does work, though. Part 1 - [https://www.youtube.com/watch?v=W9IHEqlGG1s]. And part 2 -

	==Induction==		==Induction==

Marcin: /* Brushless DC */

2020-06-14T22:38:47Z

Brushless DC

← Older revision		Revision as of 22:38, 14 June 2020
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	*''To reduce cost and improve reliability such position sensors may be eliminated. To this end, many sensorless schemes have been reported for position (and speed) control of BLDC motors'' - same as above		*''To reduce cost and improve reliability such position sensors may be eliminated. To this end, many sensorless schemes have been reported for position (and speed) control of BLDC motors'' - same as above
	*''A PM brushless drive that does not require position sensors but only electrical measurements is called a sensorless drive [4].'' - ibid.		*''A PM brushless drive that does not require position sensors but only electrical measurements is called a sensorless drive [4].'' - ibid.

			==Sensorless Brushless Motor Control==
			Most so-called ESCs (electronic speed controllers) measure the back-EMF and control the motor based on this EMF. [https://learn.adafruit.com/adafruit-motor-selection-guide/brushless-dc-motor-control]

	==Induction==		==Induction==

Marcin: /* Brushless DC */

2020-06-14T22:16:03Z

Brushless DC

← Older revision		Revision as of 22:16, 14 June 2020
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	==Brushless DC==		==Brushless DC==
	*Sensorless control is possible - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]. Good overview of characteristics.		*Sensorless control is possible - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]. Good overview of characteristics. {{sme}}
	*''These limitations of using position sensors combined with the availability of powerful and economical microprocessors have spurred the development of sensorless control technology. Solving this problem effectively will open the way for full penetration of this motor drive into all low cost, high reliability, and large volume applications.'' - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]		*''These limitations of using position sensors combined with the availability of powerful and economical microprocessors have spurred the development of sensorless control technology. Solving this problem effectively will open the way for full penetration of this motor drive into all low cost, high reliability, and large volume applications.'' - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]
	*''To reduce cost and improve reliability such position sensors may be eliminated. To this end, many sensorless schemes have been reported for position (and speed) control of BLDC motors'' - same as above		*''To reduce cost and improve reliability such position sensors may be eliminated. To this end, many sensorless schemes have been reported for position (and speed) control of BLDC motors'' - same as above

Marcin: /* Brushless DC */

2020-06-14T21:59:20Z

Brushless DC

← Older revision		Revision as of 21:59, 14 June 2020
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	*''These limitations of using position sensors combined with the availability of powerful and economical microprocessors have spurred the development of sensorless control technology. Solving this problem effectively will open the way for full penetration of this motor drive into all low cost, high reliability, and large volume applications.'' - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]		*''These limitations of using position sensors combined with the availability of powerful and economical microprocessors have spurred the development of sensorless control technology. Solving this problem effectively will open the way for full penetration of this motor drive into all low cost, high reliability, and large volume applications.'' - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]
	*''To reduce cost and improve reliability such position sensors may be eliminated. To this end, many sensorless schemes have been reported for position (and speed) control of BLDC motors'' - same as above		*''To reduce cost and improve reliability such position sensors may be eliminated. To this end, many sensorless schemes have been reported for position (and speed) control of BLDC motors'' - same as above
			*''A PM brushless drive that does not require position sensors but only electrical measurements is called a sensorless drive [4].'' - ibid.

	==Induction==		==Induction==

Marcin: /* Brushless DC */

2020-06-14T21:57:47Z

Brushless DC

← Older revision		Revision as of 21:57, 14 June 2020
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	*Sensorless control is possible - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]. Good overview of characteristics.		*Sensorless control is possible - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]. Good overview of characteristics.
	*''These limitations of using position sensors combined with the availability of powerful and economical microprocessors have spurred the development of sensorless control technology. Solving this problem effectively will open the way for full penetration of this motor drive into all low cost, high reliability, and large volume applications.'' - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]		*''These limitations of using position sensors combined with the availability of powerful and economical microprocessors have spurred the development of sensorless control technology. Solving this problem effectively will open the way for full penetration of this motor drive into all low cost, high reliability, and large volume applications.'' - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]
			*''To reduce cost and improve reliability such position sensors may be eliminated. To this end, many sensorless schemes have been reported for position (and speed) control of BLDC motors'' - same as above

	==Induction==		==Induction==

Marcin: /* Brushless DC */

2020-06-14T21:39:00Z

Brushless DC

← Older revision		Revision as of 21:39, 14 June 2020
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	==Brushless DC==		==Brushless DC==
	*Sensorless control is possible - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]. Good overview of characteristics.		*Sensorless control is possible - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]. Good overview of characteristics.
			*''These limitations of using position sensors combined with the availability of powerful and economical microprocessors have spurred the development of sensorless control technology. Solving this problem effectively will open the way for full penetration of this motor drive into all low cost, high reliability, and large volume applications.'' - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]

	==Induction==		==Induction==

Marcin: /* Introduction */

2020-06-14T21:34:04Z

Introduction

← Older revision		Revision as of 21:34, 14 June 2020
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	=~~Introduction~~=		=Background=

			Three phase brushless control is optimal for DC brushless, non-stepper motors. Stepper motors are not considered here, as that is a different construction.

	Brushless, brushed, AC, induction, and DC - all these are different		Brushless, brushed, AC, induction, and DC - all these are different

Marcin: /* Introduction */

2020-06-14T21:32:25Z

Introduction

← Older revision		Revision as of 21:32, 14 June 2020
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	Brushless, brushed, AC, induction, and DC - all these are different		Brushless, brushed, AC, induction, and DC - all these are different

			==Brushless DC==
			*Sensorless control is possible - [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231115/]. Good overview of characteristics.

	==Induction==		==Induction==
	#Field is rotor is induced via AC. These are not permanent magnet.		#Field is rotor is induced via AC. These are not permanent magnet.