SE356859B - - Google Patents
Info
- Publication number
- SE356859B SE356859B SE1157868A SE1157868A SE356859B SE 356859 B SE356859 B SE 356859B SE 1157868 A SE1157868 A SE 1157868A SE 1157868 A SE1157868 A SE 1157868A SE 356859 B SE356859 B SE 356859B
- Authority
- SE
- Sweden
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K7/00—Modulating pulses with a continuously-variable modulating signal
- H03K7/08—Duration or width modulation ; Duty cycle modulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Direct Current Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED0053958 | 1967-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE356859B true SE356859B (xx) | 1973-06-04 |
Family
ID=7055375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1157868A SE356859B (xx) | 1967-08-29 | 1968-08-28 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3604995A (xx) |
| JP (1) | JPS4928041B1 (xx) |
| CH (1) | CH493168A (xx) |
| DE (1) | DE1588136B2 (xx) |
| DK (1) | DK130269B (xx) |
| FR (1) | FR1578530A (xx) |
| GB (1) | GB1202466A (xx) |
| SE (1) | SE356859B (xx) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4180842A (en) * | 1978-05-12 | 1979-12-25 | General Electric Company | Timer circuit for use in protective relaying applications |
| JPS5917635B2 (ja) * | 1979-07-13 | 1984-04-23 | 東洋電機製造株式会社 | Ｐｗｍインバ−タ装置 |
| JPS58179176A (ja) * | 1982-04-13 | 1983-10-20 | Mitsubishi Electric Corp | インバ−タ |
| JPS59168701U (ja) * | 1983-04-28 | 1984-11-12 | 遠藤 清松 | テレビジヨン受像機の画面の拡大に用いるフレネルレンズの組合せの方法 |
| JPS61114401U (xx) * | 1984-12-27 | 1986-07-19 | ||
| JPS61116304U (xx) * | 1984-12-29 | 1986-07-23 | ||
| JPH021701U (xx) * | 1987-11-11 | 1990-01-08 | ||
| US5838294A (en) * | 1996-12-15 | 1998-11-17 | Honeywell Inc. | Very low duty cycle pulse width modulator |
| DE10301501B4 (de) | 2003-01-16 | 2007-05-03 | Siemens Ag | Schaltungsanordnung und Verfahren zur Erzeugung eines Pulsweiten-modulierten Signals |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3402353A (en) * | 1965-07-14 | 1968-09-17 | E H Res Lab Inc | Trapezoidal pulse generator with diode bridge for switching independent current sources |
| US3440566A (en) * | 1966-02-10 | 1969-04-22 | Gates Radio Co | Pulse duration modulator having trigger circuit utilizing a modified triangular waveform |
-
1967
- 1967-08-29 DE DE19671588136 patent/DE1588136B2/de not_active Withdrawn
-
1968
- 1968-07-23 CH CH1122468A patent/CH493168A/de not_active IP Right Cessation
- 1968-08-20 GB GB3971668A patent/GB1202466A/en not_active Expired
- 1968-08-23 FR FR1578530D patent/FR1578530A/fr not_active Expired
- 1968-08-27 US US3604995D patent/US3604995A/en not_active Expired - Lifetime
- 1968-08-27 JP JP6139868A patent/JPS4928041B1/ja active Pending
- 1968-08-28 DK DK412968A patent/DK130269B/da unknown
- 1968-08-28 SE SE1157868A patent/SE356859B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1588136B2 (de) | 1970-11-12 |
| US3604995A (en) | 1971-09-14 |
| DE1588136A1 (de) | 1970-03-05 |
| DK130269B (da) | 1975-01-27 |
| JPS4928041B1 (xx) | 1974-07-23 |
| GB1202466A (en) | 1970-08-19 |
| DK130269C (xx) | 1975-06-23 |
| CH493168A (de) | 1970-06-30 |
| FR1578530A (xx) | 1969-08-14 |