GB646364A - Improvements in or relating to phase shifting arrangements - Google Patents

Improvements in or relating to phase shifting arrangements

Info

Publication number
GB646364A
GB646364A GB2424/46A GB242446A GB646364A GB 646364 A GB646364 A GB 646364A GB 2424/46 A GB2424/46 A GB 2424/46A GB 242446 A GB242446 A GB 242446A GB 646364 A GB646364 A GB 646364A
Authority
GB
United Kingdom
Prior art keywords
rotor
stator
windings
phase
supplied
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.)
Expired
Application number
GB2424/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB646364A publication Critical patent/GB646364A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/18—Networks for phase shifting
    • H03H7/21—Networks for phase shifting providing two or more phase shifted output signals, e.g. n-phase output
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/18—Networks for phase shifting
    • H03H7/20—Two-port phase shifters providing an adjustable phase shift

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Linear Motors (AREA)

Abstract

646,364. Phase changers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 24, 1946, No. 2424. Convention date, July 29, 1944. [Class 38 (ii)] A combination of several phase shifters, each having its primary winding supplied with quadrature phase currents at a frequency different from that supplied to the others, has means for simultaneously adjusting the relative angular position of the rotor and stator windings of each phase shifter by an amount having a predetermined relation to its frequency. These amounts may be proportional to the frequency. The arrangements described provide for adjustment at angular rates in proportion to the frequencies. In Fig. 5 the hand wheel 15 drives the phase shifters 25, 27 and 37 through successive stages of gear reduction, the first rotor turning at an angular rate which is ten times that of the second and a hundred times that of the third. These rates are proportional to the frequencies (e.g. 93, 9.3 and 0.93 kc. per second) respectively applied to devices 25, 27 and 37. The movements are indicated by counter 51. The rotor of device 37 can be independently turned by knob 43 which is first pulled forward to disengage detent 45 from hole 49 in driving gear 41. Each stator has two windings S1 and S2, at right angles as shown in Fig. 1, and supplied with currents in quadrature ; they are mounted in slots on a cylindrical insulated support carried by a hollow shaft which can be clamped in any angular position in a split bearing. The rotor windings, made up of coils R1, R2, R3, R4 of large and short span, as shown, connected in series-aiding, are in grooves in a cylindrical insulating support enveloping the stator and carried by driving shaft 9 ; the connections are through brushes 11 and slip-rings 5 and 7 on shaft 9. For the higher frequencies there is an electrostatic shield between stator and rotor. Fig. 4 shows a bridge connection of two phase shifters having stator windings S1-S2 and S3-S4 respectively and rotor windings R and RR.
GB2424/46A 1944-07-29 1946-01-24 Improvements in or relating to phase shifting arrangements Expired GB646364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US547255A US2496920A (en) 1944-07-29 1944-07-29 Phase shifter

Publications (1)

Publication Number Publication Date
GB646364A true GB646364A (en) 1950-11-22

Family

ID=24183949

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2424/46A Expired GB646364A (en) 1944-07-29 1946-01-24 Improvements in or relating to phase shifting arrangements

Country Status (2)

Country Link
US (1) US2496920A (en)
GB (1) GB646364A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2852733A (en) * 1954-06-10 1958-09-16 Reeves Instrument Corp Apparatus for shifting the phase of an electrical current
NL163075C (en) * 1976-07-12 1980-07-15 Gils Adrianus Van LAMINATED WINDING FOR ELECTRIC MACHINES.
DE19938862C1 (en) 1999-08-17 2001-03-15 Kathrein Werke Kg High frequency phase shifter assembly
DE10104564C1 (en) * 2001-02-01 2002-09-19 Kathrein Werke Kg Control device for setting a different drop angle, in particular of mobile radio antennas belonging to a base station, and an associated antenna and method for changing a drop angle
US6965183B2 (en) * 2003-05-27 2005-11-15 Pratt & Whitney Canada Corp. Architecture for electric machine
US7583063B2 (en) * 2003-05-27 2009-09-01 Pratt & Whitney Canada Corp. Architecture for electric machine
DE102009032095B4 (en) * 2009-07-07 2014-10-30 Conti Temic Microelectronic Gmbh Arrangement and method for determining an angular position

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2234654A (en) * 1934-02-15 1941-03-11 Telefunken Gmbh Direction finder
FR849117A (en) * 1938-01-22 1939-11-14 Marconi Wireless Telegraph Co Improvements to electrical phase change assemblies
US2297414A (en) * 1939-01-18 1942-09-29 Janovsky Franz Direction finding system
BE473136A (en) * 1939-10-10
US2268844A (en) * 1940-02-17 1942-01-06 Bell Telephone Labor Inc Steerable antenna system

Also Published As

Publication number Publication date
US2496920A (en) 1950-02-07

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