JPS56101397A - Motor control circuit - Google Patents
Motor control circuitInfo
- Publication number
- JPS56101397A JPS56101397A JP207880A JP207880A JPS56101397A JP S56101397 A JPS56101397 A JP S56101397A JP 207880 A JP207880 A JP 207880A JP 207880 A JP207880 A JP 207880A JP S56101397 A JPS56101397 A JP S56101397A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- double voltage
- triac
- full
- smoothing
- 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.)
- Pending
Links
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To reduce the switching loss of the motor control circuit with a simple configuration by conducting an AC switching element between a full-wave rectifying circuit and a smoothing circuit via an AC switch firing circuit with a double voltage command signal of a rectangular wave signal generator, thereby obtaining the double voltage direct current. CONSTITUTION:An AC/DC converter 1' consists of a full-wave rectifying circuit using diodes 11'-14', a smoothing circuit having a resistor 15' and smoothing capacitors 16', 17' a triac 18 connected to the intermediate point between the one end of the AC input of the full-wave rectifying circuit and the capacitors 16', 17', and an AC switch firing circuit 19 for controlling the triac. When the rectangular wave generator 40 generates a timing signal having higher than a predetermined frequency to transistors 21-26 for driving an inverter motor 30, the transistor 19a of the firing circuit 19 is conducted by the double voltage command signal generated simultaneously, and thereby the triac 18 is conducted so as to obtain the double voltage direct current. Thus, the switching loss and noise can be reduced with a simple configuration.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP207880A JPS56101397A (en) | 1980-01-14 | 1980-01-14 | Motor control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP207880A JPS56101397A (en) | 1980-01-14 | 1980-01-14 | Motor control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56101397A true JPS56101397A (en) | 1981-08-13 |
Family
ID=11519303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP207880A Pending JPS56101397A (en) | 1980-01-14 | 1980-01-14 | Motor control circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56101397A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2516688A1 (en) * | 1981-11-16 | 1983-05-20 | Int Standard Electric Corp | FLEXIBLE DISC DRIVE MECHANISM USING A SYNCHRONOUS MOTOR WITH DIRECT CURRENT POWER SUPPLY |
JPH03178594A (en) * | 1989-12-04 | 1991-08-02 | Nobuyoshi Kumaki | Floor chipping machine |
KR100364544B1 (en) * | 2000-06-26 | 2002-12-16 | 엘지전자 주식회사 | The voltage ripple compensation circuit and method of four-switch three-phase voltage source inverter |
-
1980
- 1980-01-14 JP JP207880A patent/JPS56101397A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2516688A1 (en) * | 1981-11-16 | 1983-05-20 | Int Standard Electric Corp | FLEXIBLE DISC DRIVE MECHANISM USING A SYNCHRONOUS MOTOR WITH DIRECT CURRENT POWER SUPPLY |
JPH03178594A (en) * | 1989-12-04 | 1991-08-02 | Nobuyoshi Kumaki | Floor chipping machine |
KR100364544B1 (en) * | 2000-06-26 | 2002-12-16 | 엘지전자 주식회사 | The voltage ripple compensation circuit and method of four-switch three-phase voltage source inverter |
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