JPS641329A - Digital synchronism control circuit - Google Patents

Digital synchronism control circuit

Info

Publication number
JPS641329A
JPS641329A JP62156243A JP15624387A JPS641329A JP S641329 A JPS641329 A JP S641329A JP 62156243 A JP62156243 A JP 62156243A JP 15624387 A JP15624387 A JP 15624387A JP S641329 A JPS641329 A JP S641329A
Authority
JP
Japan
Prior art keywords
pulse string
counter
phase
signal
lag
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
JP62156243A
Other languages
Japanese (ja)
Other versions
JPH011329A (en
Inventor
Arata Sakuma
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP62-156243A priority Critical patent/JPH011329A/en
Priority claimed from JP62-156243A external-priority patent/JPH011329A/en
Publication of JPS641329A publication Critical patent/JPS641329A/en
Publication of JPH011329A publication Critical patent/JPH011329A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE: To easily, quickly, and correctly realize AC power sources synchronous to each other, by up-counting or down-counting clock pulses with an up-down counter corresponding to be lag or lead in a phase discrepancy state.
CONSTITUTION: The signal C of an AND element 4 and phase signal D of a phase detecting circuit 22 are inputted to an up-down counter 51 and, when a 2nd pulse string F2 is lag from a 1st pulse string F1 in phase, a logic H signal is given to the counter 51 and the counter 51 up-counts clock pulses A. Therefore, when the output of the counter 51 is given to a digital frequency converter 52, a pulse string called F2, whose frequency corresponds to input signals, is outputted and the 2nd pulse string F2 which is synchronous to the 1st pulse string F1 can be obtained. When the 2nd pulse string F2 is used as the voltage frequency of another inverter, a synchronized state is realized.
COPYRIGHT: (C)1989,JPO&Japio
JP62-156243A 1987-06-23 Digital synchronous control circuit Pending JPH011329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-156243A JPH011329A (en) 1987-06-23 Digital synchronous control circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62-156243A JPH011329A (en) 1987-06-23 Digital synchronous control circuit

Publications (2)

Publication Number Publication Date
JPS641329A true JPS641329A (en) 1989-01-05
JPH011329A JPH011329A (en) 1989-01-05

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424524A (en) * 2007-08-03 2012-04-25 日本电气硝子株式会社 Tempered glass substrate and method of producing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5381059A (en) * 1976-12-27 1978-07-18 Toshiba Corp Digital phase synchronizing system
JPS56149121A (en) * 1980-04-22 1981-11-18 Nec Corp Phase synchronizing circuit
JPS61131620A (en) * 1984-11-30 1986-06-19 Meidensha Electric Mfg Co Ltd Phase synchroniztion control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5381059A (en) * 1976-12-27 1978-07-18 Toshiba Corp Digital phase synchronizing system
JPS56149121A (en) * 1980-04-22 1981-11-18 Nec Corp Phase synchronizing circuit
JPS61131620A (en) * 1984-11-30 1986-06-19 Meidensha Electric Mfg Co Ltd Phase synchroniztion control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102424524A (en) * 2007-08-03 2012-04-25 日本电气硝子株式会社 Tempered glass substrate and method of producing the same

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