JPS5485316A - Commutatorless motor - Google Patents
Commutatorless motorInfo
- Publication number
- JPS5485316A JPS5485316A JP15381677A JP15381677A JPS5485316A JP S5485316 A JPS5485316 A JP S5485316A JP 15381677 A JP15381677 A JP 15381677A JP 15381677 A JP15381677 A JP 15381677A JP S5485316 A JPS5485316 A JP S5485316A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- speed
- motor
- output
- 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
Abstract
PURPOSE: To prevent shocking, hunting, etc. when shifting a position detecting operation to a separately-excited inverter operation, by temporarily performing a constant speed controlled operation at shifting speed and shifting to the invertion operation in accordance with the coincidence of a position detection signal with a commutation control signal.
CONSTITUTION: Normally, a synchronous motor SM is energized from a thyristor Leonard main circuit LEO and a power inverter SRC and controlled by a signal from a calculator 8 which converts the detection signal of an induced voltage detection circuit 6 into a logic signal corresponding to the position of the rotating megnetic field of the motor. To reduce the output voltage of a variable resistor 1 to decrease the speed of the motor, the output voltage of the variable resistor is compared with that of a speed increase/decrease circuit 9 by a comprator circuit 14. When the output voltage of the resistor 1 has reached a predetermined level, the output of the circuit 9 is applied as a speed reference input to an operational amplifier SC. The signal of the speed increase/ decrease circuit 9 is previously adjusted so that the rotational frequency corresponding to the position detection signal at the time of the application of the output of the circuit 9 coincides with the rotational frequency of the separately-excited inverter operation at the time of switching to the output signal of a ring counter 11. Thereby, the inverter operation can be started without changing the rotational frequency of the motor SM.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52153816A JPS5931315B2 (en) | 1977-12-21 | 1977-12-21 | Commutatorless motor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52153816A JPS5931315B2 (en) | 1977-12-21 | 1977-12-21 | Commutatorless motor device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5485316A true JPS5485316A (en) | 1979-07-06 |
JPS5931315B2 JPS5931315B2 (en) | 1984-08-01 |
Family
ID=15570716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52153816A Expired JPS5931315B2 (en) | 1977-12-21 | 1977-12-21 | Commutatorless motor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5931315B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5399103A (en) * | 1993-02-18 | 1995-03-21 | Yazaki Corporation | Connector device for connecting batteries |
-
1977
- 1977-12-21 JP JP52153816A patent/JPS5931315B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5399103A (en) * | 1993-02-18 | 1995-03-21 | Yazaki Corporation | Connector device for connecting batteries |
Also Published As
Publication number | Publication date |
---|---|
JPS5931315B2 (en) | 1984-08-01 |
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