JPS6434191A - Device for driving brushless dc motor - Google Patents
Device for driving brushless dc motorInfo
- Publication number
- JPS6434191A JPS6434191A JP62190681A JP19068187A JPS6434191A JP S6434191 A JPS6434191 A JP S6434191A JP 62190681 A JP62190681 A JP 62190681A JP 19068187 A JP19068187 A JP 19068187A JP S6434191 A JPS6434191 A JP S6434191A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- phase
- micro
- circuit
- computer
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE:To miniaturize the title device and stabilize the rotation of a motor, by a method wherein pulses in every 60 deg. are obtained from the terminal voltage of the motor to output a driving waveform, correcting the phase of the motor and increasing or decreasing an output voltage. CONSTITUTION:In the driving circuit of a brushless DC motor 18, a counter electromotive voltage is inputted from input terminals 1a-1c into filters 20a-20c. The outputs 46a-46c of the filters are inputted into a differentiating and AND circuit 21 and a micro-computer 22 through comparators 4a-4c while an inverter circuit 17 is controlled by the output of the micro-computer 22 to drive a motor 18. The differentiating and AND circuit 21 functions as a pulse generating means and the micro-computer 22 functions as a phase correcting means, an output voltage increasing and decreasing means and a control means while a timer and a counter, incorporated into the micro-computer, function as a rotating frequency operating means. According to this constitution, the filter constant of a filter circuit 20 may be designed regardless of the delay of a phase by correcting the phase of a terminal voltage after passing through the filter and the phase of the position of a field rotor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62190681A JPH0746914B2 (en) | 1987-07-30 | 1987-07-30 | Brushless DC motor drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62190681A JPH0746914B2 (en) | 1987-07-30 | 1987-07-30 | Brushless DC motor drive |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6434191A true JPS6434191A (en) | 1989-02-03 |
JPH0746914B2 JPH0746914B2 (en) | 1995-05-17 |
Family
ID=16262110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62190681A Expired - Fee Related JPH0746914B2 (en) | 1987-07-30 | 1987-07-30 | Brushless DC motor drive |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0746914B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03230790A (en) * | 1990-02-02 | 1991-10-14 | Zexel Corp | Controller for brushless motor |
JPH05137385A (en) * | 1991-11-08 | 1993-06-01 | Daikin Ind Ltd | Driving circuit for dc brushless motor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62247789A (en) * | 1986-04-21 | 1987-10-28 | Matsushita Seiko Co Ltd | Commutatorless motor |
-
1987
- 1987-07-30 JP JP62190681A patent/JPH0746914B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62247789A (en) * | 1986-04-21 | 1987-10-28 | Matsushita Seiko Co Ltd | Commutatorless motor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03230790A (en) * | 1990-02-02 | 1991-10-14 | Zexel Corp | Controller for brushless motor |
JPH05137385A (en) * | 1991-11-08 | 1993-06-01 | Daikin Ind Ltd | Driving circuit for dc brushless motor |
Also Published As
Publication number | Publication date |
---|---|
JPH0746914B2 (en) | 1995-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |