GB1416690A - Position regulating systems - Google Patents

Position regulating systems

Info

Publication number
GB1416690A
GB1416690A GB90772A GB90772A GB1416690A GB 1416690 A GB1416690 A GB 1416690A GB 90772 A GB90772 A GB 90772A GB 90772 A GB90772 A GB 90772A GB 1416690 A GB1416690 A GB 1416690A
Authority
GB
United Kingdom
Prior art keywords
signal
capacitor
amplifier
input
input signal
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
GB90772A
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.)
Danks Holding Ltd
Original Assignee
Bailey Meters and Controls 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 Bailey Meters and Controls Ltd filed Critical Bailey Meters and Controls Ltd
Priority to GB90772A priority Critical patent/GB1416690A/en
Publication of GB1416690A publication Critical patent/GB1416690A/en
Expired legal-status Critical Current

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
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/12—Control or stabilisation of current
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/18—Control of position or direction using feedback using an analogue comparing device delivering a series of pulses
    • G05D3/183—Control of position or direction using feedback using an analogue comparing device delivering a series of pulses using stepping motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Gyroscopes (AREA)

Abstract

1416690 Pulse modulation circuits; pulse and sawtooth wave generators BAILEY METERS & CONTROLS Ltd 28 March 1973 [7 Jan 1972] 907/72 Headings H3T and H4L [Also in Divisions G3 and H2] In a retroactive control system, a relaxation oscillator 6 receives from a summator 4 a signal derived from an error signal and supplies signals at a frequency dependent upon the magnitude of the input signal and of opposite polarities to the terminals 61, 62 of drive circuitry 7 (Fig. 5, not shown) for a stepping motor. The oscillator 6 comprises a capacitor 64, which depending upon the polarity of the input signal is charged in one sense or the other through an amplifier 63, and rectifiers 65, 69, which are each connected between a respective terminal 61, 62 and the input of an amplifier 66, the arrangement being such that, whenever the voltage at said amplifier input reaches a predetermined magnitude and polarity, the capacitor 64 is discharged by a field-effect transistor 60 for both senses of charge of the capacitor. In the embodiment described, when the input signal is positive sawtooth waves of negative and positive polarities respectively appear at terminals 61, 62; and vice versa when signal 5 is negative.
GB90772A 1972-01-07 1972-01-07 Position regulating systems Expired GB1416690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB90772A GB1416690A (en) 1972-01-07 1972-01-07 Position regulating systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB90772A GB1416690A (en) 1972-01-07 1972-01-07 Position regulating systems

Publications (1)

Publication Number Publication Date
GB1416690A true GB1416690A (en) 1975-12-03

Family

ID=9712591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB90772A Expired GB1416690A (en) 1972-01-07 1972-01-07 Position regulating systems

Country Status (1)

Country Link
GB (1) GB1416690A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020922A1 (en) * 1990-07-02 1992-01-16 Didier Werke Ag SPARK PLUG

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4020922A1 (en) * 1990-07-02 1992-01-16 Didier Werke Ag SPARK PLUG

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee