TW200713784A - Sensorless motor control circuit without employing any mask process - Google Patents

Sensorless motor control circuit without employing any mask process

Info

Publication number
TW200713784A
TW200713784A TW094133135A TW94133135A TW200713784A TW 200713784 A TW200713784 A TW 200713784A TW 094133135 A TW094133135 A TW 094133135A TW 94133135 A TW94133135 A TW 94133135A TW 200713784 A TW200713784 A TW 200713784A
Authority
TW
Taiwan
Prior art keywords
circuit
motor control
control circuit
signal
employing
Prior art date
Application number
TW094133135A
Other languages
Chinese (zh)
Other versions
TWI298972B (en
Inventor
Chi-Yang Chen
Feng-Rurng Juang
Original Assignee
Aimtron Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aimtron Technology Corp filed Critical Aimtron Technology Corp
Priority to TW94133135A priority Critical patent/TWI298972B/en
Publication of TW200713784A publication Critical patent/TW200713784A/en
Application granted granted Critical
Publication of TWI298972B publication Critical patent/TWI298972B/en

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Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A motor control circuit includes a detector circuit, a comparator circuit, a sifter circuit, and a driver circuit. The detector circuit is coupled to a plurality of coils of a motor for generating a detection signal. The detection signal is in association with a terminal voltage of a selected-to-be-floated coil of the plurality of coils. Based on comparison between the detection signal and a reference voltage, the comparator circuit generates a comparison signal. The sifter circuit receives in sequence a first-time crossing and a second-time crossing from the comparison signal, and generates an indication signal in response to the second-time crossing. The driver circuit controls a commutation of the motor in response to the indication signal.
TW94133135A 2005-09-23 2005-09-23 Motor control circuit,control method,and zero-crossing detection circuit TWI298972B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94133135A TWI298972B (en) 2005-09-23 2005-09-23 Motor control circuit,control method,and zero-crossing detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94133135A TWI298972B (en) 2005-09-23 2005-09-23 Motor control circuit,control method,and zero-crossing detection circuit

Publications (2)

Publication Number Publication Date
TW200713784A true TW200713784A (en) 2007-04-01
TWI298972B TWI298972B (en) 2008-07-11

Family

ID=45069554

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94133135A TWI298972B (en) 2005-09-23 2005-09-23 Motor control circuit,control method,and zero-crossing detection circuit

Country Status (1)

Country Link
TW (1) TWI298972B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI481183B (en) * 2013-10-18 2015-04-11 Ind Tech Res Inst Method and system for measuring motor parameter
TWI482983B (en) * 2012-11-19 2015-05-01 Univ Nat Cheng Kung An apparatus for parameter measurement of motor and the method thereof
TWI804957B (en) * 2021-08-23 2023-06-11 致新科技股份有限公司 Motor controller
US11699964B2 (en) 2021-08-23 2023-07-11 Global Mixed-Mode Technology Inc. Motor controller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI482983B (en) * 2012-11-19 2015-05-01 Univ Nat Cheng Kung An apparatus for parameter measurement of motor and the method thereof
TWI481183B (en) * 2013-10-18 2015-04-11 Ind Tech Res Inst Method and system for measuring motor parameter
TWI804957B (en) * 2021-08-23 2023-06-11 致新科技股份有限公司 Motor controller
US11699964B2 (en) 2021-08-23 2023-07-11 Global Mixed-Mode Technology Inc. Motor controller

Also Published As

Publication number Publication date
TWI298972B (en) 2008-07-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees