JPS54157074A - Digital set phase control system - Google Patents

Digital set phase control system

Info

Publication number
JPS54157074A
JPS54157074A JP6598778A JP6598778A JPS54157074A JP S54157074 A JPS54157074 A JP S54157074A JP 6598778 A JP6598778 A JP 6598778A JP 6598778 A JP6598778 A JP 6598778A JP S54157074 A JPS54157074 A JP S54157074A
Authority
JP
Japan
Prior art keywords
time
power source
cpu
trigger
frequency
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
JP6598778A
Other languages
Japanese (ja)
Other versions
JPS6245792B2 (en
Inventor
Toshio Abiko
Yoshiharu Suzuki
Kensaburo Uemura
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP6598778A priority Critical patent/JPS54157074A/en
Publication of JPS54157074A publication Critical patent/JPS54157074A/en
Publication of JPS6245792B2 publication Critical patent/JPS6245792B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Voltage And Current In General (AREA)
  • Power Conversion In General (AREA)

Abstract

PURPOSE: To obtain the same phase control state in arbitrary regions by selecting a commercial power source frequency and selecting a trigger phase set time determined on a basis of the selected frequency above or a time, which is obrained by multiplying or dividing this trigger phase set time by factor 5/6, on a basis of selection set signals of the power source frequency.
CONSTITUTION: Commercial power source 3, frequency selection swtich 8 and a CPU are operated under 60 Hz. In the CPU, zero-crossing signal 4 is received to detect a zero-crossing time. Time t by which the half cycle of power source 3 is segmented into the proper number of equal intervals is set to the CPU previously, and the number of a segment of the power source phase after which an input digital signal instructs the turning-on of switch element 1 is discriminated, and a trigger signal is given to driving circuit 7 at a designated trigger time. The CPU stores adjusteing time t/5 obtained by subtracting set time t from time 6t/5; and when switch 8 selects 50 Hz and 60 Hz is rejected, this is discriminated just after the measurement completion of time t, and the time of measurement completion of time t/5 is defined as a triggerrable time for 50 Hz. Thus, a unit which can be used for 50 and 60 Hz regions commonly can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP6598778A 1978-05-31 1978-05-31 Digital set phase control system Granted JPS54157074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6598778A JPS54157074A (en) 1978-05-31 1978-05-31 Digital set phase control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6598778A JPS54157074A (en) 1978-05-31 1978-05-31 Digital set phase control system

Publications (2)

Publication Number Publication Date
JPS54157074A true JPS54157074A (en) 1979-12-11
JPS6245792B2 JPS6245792B2 (en) 1987-09-29

Family

ID=13302864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6598778A Granted JPS54157074A (en) 1978-05-31 1978-05-31 Digital set phase control system

Country Status (1)

Country Link
JP (1) JPS54157074A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005098971A (en) * 2003-08-26 2005-04-14 Citizen Watch Co Ltd Clock movement
US8740452B2 (en) 2011-08-17 2014-06-03 Eta Sa Manufacture Horlogère Suisse Pre-adjustment of timepiece wheel set shake

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005098971A (en) * 2003-08-26 2005-04-14 Citizen Watch Co Ltd Clock movement
JP4554970B2 (en) * 2003-08-26 2010-09-29 シチズンホールディングス株式会社 Watch movement
US8740452B2 (en) 2011-08-17 2014-06-03 Eta Sa Manufacture Horlogère Suisse Pre-adjustment of timepiece wheel set shake

Also Published As

Publication number Publication date
JPS6245792B2 (en) 1987-09-29

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