JPS5457112A - Slip frequency synthesizer - Google Patents

Slip frequency synthesizer

Info

Publication number
JPS5457112A
JPS5457112A JP12326877A JP12326877A JPS5457112A JP S5457112 A JPS5457112 A JP S5457112A JP 12326877 A JP12326877 A JP 12326877A JP 12326877 A JP12326877 A JP 12326877A JP S5457112 A JPS5457112 A JP S5457112A
Authority
JP
Japan
Prior art keywords
frequency
angular frequency
slip
sine wave
oscillator
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
Application number
JP12326877A
Other languages
Japanese (ja)
Other versions
JPS5826277B2 (en
Inventor
Takeo Shimamura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP52123268A priority Critical patent/JPS5826277B2/en
Publication of JPS5457112A publication Critical patent/JPS5457112A/en
Publication of JPS5826277B2 publication Critical patent/JPS5826277B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To eliminate the unequal duration of detected pulse and the limit of lower frequency of a voltage control two-phase sine wave oscillator by producing the pulse train of frequency proportional to the input voltage.
CONSTITUTION: A slip frequency synthesizer S is composed of a slip frequency arithmetic unit 5 and a voltage control two-phase sine wave oscillator 6. The output signals 601, 602 from the oscillator 6 are fedback to the arithmetic unit 5 to form a closed loop, which operates to coincide the slip angular frequency ωs.π applied to the signal 201 with actual slip angular frequency ωs presented at the signal 528 resulting in presentation of the angular frequency of the sum of the rotary angular frequency ωπ of the induction motor M and desired slip angular frequency ωs.ot, namely cosine wave ωsωot and sine wave sin ωot having the angular frequency ωo=ωπ+ωs.π of the stator winding voltage at the signals 601, 602
COPYRIGHT: (C)1979,JPO&Japio
JP52123268A 1977-10-14 1977-10-14 Slip frequency synthesizer Expired JPS5826277B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52123268A JPS5826277B2 (en) 1977-10-14 1977-10-14 Slip frequency synthesizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52123268A JPS5826277B2 (en) 1977-10-14 1977-10-14 Slip frequency synthesizer

Publications (2)

Publication Number Publication Date
JPS5457112A true JPS5457112A (en) 1979-05-08
JPS5826277B2 JPS5826277B2 (en) 1983-06-01

Family

ID=14856347

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52123268A Expired JPS5826277B2 (en) 1977-10-14 1977-10-14 Slip frequency synthesizer

Country Status (1)

Country Link
JP (1) JPS5826277B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60167487U (en) * 1984-04-10 1985-11-07 エコ−電子株式会社 Wall-mounted terminal board for speaker box

Also Published As

Publication number Publication date
JPS5826277B2 (en) 1983-06-01

Similar Documents

Publication Publication Date Title
SE8100243L (en) FREQUENCY SYNTHESIS OF TYPE FIXED LOOP
JPS5534851A (en) Phase detector
JPS5384449A (en) Variable frequency synthesizer
JPS5457112A (en) Slip frequency synthesizer
GB1296487A (en)
JPS5293258A (en) Phase syncronizing oscillator
JPS5213757A (en) Sine wave signal generator circuit
JPS533765A (en) Phase synchronous oscillating unit
JPS5323256A (en) Phase lock loop
JPS5437672A (en) Polyphase reversible and variable erequency oscillator
JPS5624829A (en) Vfo circuit
JPS5587018A (en) Arithmetic unit for motor torque of induction motor
SU472313A1 (en) Device for controlling short-circuited rotor winding
FR2281001A1 (en) PHASE OR FREQUENCY CONTROL DEVICE
JPS5592042A (en) Phase lock loop circuit
JPS52115982A (en) Rest type pulse oscillator
JPS54134458A (en) House-service electric instrument
JPS56153412A (en) Rotation control device for rotator
JPS5535209A (en) Recording unit for vehicle run state
JPS5523474A (en) Rotary detector
JPS5232222A (en) Sampling pulse producting circuit
JPS529354A (en) Phase lock circuit
JPS53123649A (en) Frequency-modulated transmitter
JPS5394167A (en) Digital phase synchronous loop
JPS51117026A (en) Electronic musical instrument