JPS641329A - Digital synchronism control circuit - Google Patents
Digital synchronism control circuitInfo
- 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
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
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)
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)
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)
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)
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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