IN152817B - - Google Patents

Info

Publication number
IN152817B
IN152817B IN287/CAL/80A IN287CA1980A IN152817B IN 152817 B IN152817 B IN 152817B IN 287CA1980 A IN287CA1980 A IN 287CA1980A IN 152817 B IN152817 B IN 152817B
Authority
IN
India
Prior art keywords
input
stage
inverter
vector
field
Prior art date
Application number
IN287/CAL/80A
Other languages
English (en)
Inventor
Dr Felix Blaschke
Original Assignee
Siemens Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of IN152817B publication Critical patent/IN152817B/en

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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/06—Rotor flux based control involving the use of rotor position or rotor speed sensors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Control Of Ac Motors In General (AREA)
  • Inverter Devices (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Feedback Control In General (AREA)
  • Details Of Television Scanning (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Steroid Compounds (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Manipulation Of Pulses (AREA)
  • Pulse Circuits (AREA)
IN287/CAL/80A 1979-05-16 1980-03-13 IN152817B (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792919786 DE2919786A1 (de) 1979-05-16 1979-05-16 Pulsbreiten-mehrfachmultiplizierer

Publications (1)

Publication Number Publication Date
IN152817B true IN152817B (fi) 1984-04-14

Family

ID=6070886

Family Applications (1)

Application Number Title Priority Date Filing Date
IN287/CAL/80A IN152817B (fi) 1979-05-16 1980-03-13

Country Status (10)

Country Link
US (1) US4335444A (fi)
EP (1) EP0019139B1 (fi)
JP (1) JPS55153071A (fi)
AT (1) ATE3340T1 (fi)
CA (1) CA1150368A (fi)
DE (2) DE2919786A1 (fi)
DK (1) DK210080A (fi)
FI (1) FI70334C (fi)
IN (1) IN152817B (fi)
NO (1) NO151724C (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3139136A1 (de) * 1981-10-01 1983-04-14 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zum bestimmen der frequenz elektrischer wechselgroessen, insbesondere einer drehfeldmaschine
JPS6423607A (en) * 1987-07-17 1989-01-26 Otis Elevator Japan Multiphase multiplier circuit
JPH0374064U (fi) * 1989-11-20 1991-07-25
US6237017B1 (en) * 1996-04-25 2001-05-22 Texas Instruments India Limited Lossy technique for image and speech processing
CN101632225B (zh) * 2007-01-25 2012-12-19 Rgb系统公司 用于产生具有低音频频段噪声成分的三角波形的方法及设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880935A (en) * 1954-09-27 1959-04-07 Gilfillan Bros Inc Means for electronic multiplication
US2927734A (en) * 1954-12-30 1960-03-08 Rca Corp Computing system for electronic resolver
DE1170685B (de) * 1960-05-21 1964-05-21 Telefunken Patent Elektronische Anordnung zur Analog-Division
US3473011A (en) * 1965-07-12 1969-10-14 Gen Electric Electronic analog resolver
DE1239507B (de) * 1965-10-14 1967-04-27 Siemens Ag Verfahren und Einrichtung zur Bildung eines Signals, dessen Mittelwert dem Quotienten aus einem ersten und einem zweiten analogen Signal multipliziert mit einem dritten analogen Signal proportional ist
US3466460A (en) * 1967-01-20 1969-09-09 Weston Instruments Inc Time division multiplier
US3536904A (en) * 1968-09-23 1970-10-27 Gen Electric Four-quadrant pulse width multiplier
CA930867A (en) * 1968-10-09 1973-07-24 Canadian Marconi Company Pythagoreas adder or solid state resolver
US3569688A (en) * 1968-12-24 1971-03-09 Audn Corp A multiplier in which a capacitor is charged at a rate proportional to the product of two analogue inputs
CH539980A (de) * 1971-09-09 1973-07-31 Siemens Ag Einrichtung zur Erzeugung zweier amplitudenstabilisierter, um 90º elektrisch gegeneinander versetzter, sinusförmiger und frequenzvariabler Wechselspannungen
FR2271616A1 (en) * 1974-05-14 1975-12-12 Decca Ltd Orthogonal resolver with pulse generator - has conditioning, summing and forming circuits and feedback to generator
DE2816614C2 (de) * 1978-04-17 1980-02-21 Siemens Ag, 1000 Berlin Und 8000 Muenchen Koordinatenwandler zur Umwandlung von polaren Vektorgrößen in kartesische Vektorgrößen

Also Published As

Publication number Publication date
ATE3340T1 (de) 1983-05-15
CA1150368A (en) 1983-07-19
EP0019139B1 (de) 1983-05-11
FI801247A (fi) 1980-11-17
DK210080A (da) 1980-11-17
FI70334C (fi) 1986-09-15
EP0019139A1 (de) 1980-11-26
NO151724C (no) 1985-05-22
FI70334B (fi) 1986-02-28
US4335444A (en) 1982-06-15
DE2919786A1 (de) 1980-11-27
NO801454L (no) 1980-11-17
NO151724B (no) 1985-02-11
DE3063056D1 (de) 1983-06-16
JPS55153071A (en) 1980-11-28

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