TW200713784A - Sensorless motor control circuit without employing any mask process - Google Patents
Sensorless motor control circuit without employing any mask processInfo
- 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
Links
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.
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)
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 |
-
2005
- 2005-09-23 TW TW94133135A patent/TWI298972B/en not_active IP Right Cessation
Cited By (4)
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 |