JPS54111070A - Phase controlling circuit - Google Patents

Phase controlling circuit

Info

Publication number
JPS54111070A
JPS54111070A JP1830178A JP1830178A JPS54111070A JP S54111070 A JPS54111070 A JP S54111070A JP 1830178 A JP1830178 A JP 1830178A JP 1830178 A JP1830178 A JP 1830178A JP S54111070 A JPS54111070 A JP S54111070A
Authority
JP
Japan
Prior art keywords
phase
gain
circuit
signals
error
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.)
Pending
Application number
JP1830178A
Other languages
Japanese (ja)
Inventor
Yoshinori Misaki
Fumio Kishino
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.)
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone Corp
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 Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP1830178A priority Critical patent/JPS54111070A/en
Publication of JPS54111070A publication Critical patent/JPS54111070A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To shorten the phase drawing time and prevent hunting due to excessive gain by varying the phase loop gain according to the magnetitude of phase error.
CONSTITUTION: In an phase comparison circuit 1, each phase of the standard signals A and the detected phase signals B of a controlled apparatus 4 is compared, and after proper compensation is applied in a phase compensation circuit 2, both signals are sent to a gain variable circuit 5. Into the gain variable circuit 5, also the error signals C are sent, and when the error signal is large, gain is increased, and when small, gain is reduced, and hunting is prevented. The output of the gain variable circuit 5 is amplified by a class "A" amplifying circuit 3 and drives controlled apparatuses 4 such as revolution bodies.
COPYRIGHT: (C)1979,JPO&Japio
JP1830178A 1978-02-20 1978-02-20 Phase controlling circuit Pending JPS54111070A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1830178A JPS54111070A (en) 1978-02-20 1978-02-20 Phase controlling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1830178A JPS54111070A (en) 1978-02-20 1978-02-20 Phase controlling circuit

Publications (1)

Publication Number Publication Date
JPS54111070A true JPS54111070A (en) 1979-08-31

Family

ID=11967779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1830178A Pending JPS54111070A (en) 1978-02-20 1978-02-20 Phase controlling circuit

Country Status (1)

Country Link
JP (1) JPS54111070A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826529A (en) * 1981-08-07 1983-02-17 財団法人電力中央研究所 Controller for dc transmission system
JPS5971507A (en) * 1982-10-18 1984-04-23 Yamatake Honeywell Co Ltd Process controller
JPS61234404A (en) * 1985-04-10 1986-10-18 Matsushita Electric Ind Co Ltd Automatic loop gain control circuit
JPH0324457U (en) * 1989-07-13 1991-03-13

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5826529A (en) * 1981-08-07 1983-02-17 財団法人電力中央研究所 Controller for dc transmission system
JPS5971507A (en) * 1982-10-18 1984-04-23 Yamatake Honeywell Co Ltd Process controller
JPS61234404A (en) * 1985-04-10 1986-10-18 Matsushita Electric Ind Co Ltd Automatic loop gain control circuit
JPH0324457U (en) * 1989-07-13 1991-03-13

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