JPS5543987A - Phase comparator - Google Patents
Phase comparatorInfo
- Publication number
- JPS5543987A JPS5543987A JP11732278A JP11732278A JPS5543987A JP S5543987 A JPS5543987 A JP S5543987A JP 11732278 A JP11732278 A JP 11732278A JP 11732278 A JP11732278 A JP 11732278A JP S5543987 A JPS5543987 A JP S5543987A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- flip
- phase
- signal
- flop circuit
- 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
Abstract
PURPOSE: To obtain a comparator the phase synchronizing area of which is not overwide, by which the phase synchronizing point can freely be set, and which is effective for the phase control motor, by combining a flip-flop circuit, exclusive OR circut and AND circuit.
CONSTITUTION: The differential circuit 9 gives a signal to the flip-flop circuit 10 for setting it in a rise time of the signal fs the phase of which is to be comparated, the other differential circuit 8 does a signal to the flip-flop circuit for resetting it in a fall time of the reference frequency signal fr. The reference frequency signal fr and output Q of the flip-flop circuit are fed to one of the AND circuits 13, 14 through the exclusive OR circuit 11, the reference frequency signal fr and the one through the inverter 12 are fed to the other of AND circuits 13, 14, signals depending on a lag and lead of phase between the signals fr and fs are provided.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11732278A JPS5543987A (en) | 1978-09-21 | 1978-09-21 | Phase comparator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11732278A JPS5543987A (en) | 1978-09-21 | 1978-09-21 | Phase comparator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5543987A true JPS5543987A (en) | 1980-03-28 |
Family
ID=14708867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11732278A Pending JPS5543987A (en) | 1978-09-21 | 1978-09-21 | Phase comparator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5543987A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04500891A (en) * | 1988-09-26 | 1992-02-13 | モトローラ・インコーポレイテッド | Sample-hold phase detector and its control method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5323256A (en) * | 1976-08-16 | 1978-03-03 | Hitachi Ltd | Phase lock loop |
-
1978
- 1978-09-21 JP JP11732278A patent/JPS5543987A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5323256A (en) * | 1976-08-16 | 1978-03-03 | Hitachi Ltd | Phase lock loop |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04500891A (en) * | 1988-09-26 | 1992-02-13 | モトローラ・インコーポレイテッド | Sample-hold phase detector and its control method |
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