ZA813595B - Digital phase sequence detector - Google Patents
Digital phase sequence detectorInfo
- Publication number
- ZA813595B ZA813595B ZA00813595A ZA813595A ZA813595B ZA 813595 B ZA813595 B ZA 813595B ZA 00813595 A ZA00813595 A ZA 00813595A ZA 813595 A ZA813595 A ZA 813595A ZA 813595 B ZA813595 B ZA 813595B
- Authority
- ZA
- South Africa
- Prior art keywords
- digital phase
- phase sequence
- sequence detector
- detector
- digital
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/38—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current
- H02H3/382—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to both voltage and current; responsive to phase angle between voltage and current involving phase comparison between current and voltage or between values derived from current and voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
- G01R25/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
- H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Manipulation Of Pulses (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Measurement Of Current Or Voltage (AREA)
- Electric Clocks (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/158,105 US4337435A (en) | 1980-06-10 | 1980-06-10 | Digital phase sequence detector |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA813595B true ZA813595B (en) | 1982-09-29 |
Family
ID=22566704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00813595A ZA813595B (en) | 1980-06-10 | 1981-05-27 | Digital phase sequence detector |
Country Status (9)
Country | Link |
---|---|
US (1) | US4337435A (xx) |
EP (1) | EP0041809B1 (xx) |
JP (1) | JPS5726766A (xx) |
KR (1) | KR830006984A (xx) |
BR (1) | BR8103596A (xx) |
DE (1) | DE3168747D1 (xx) |
ES (1) | ES502873A0 (xx) |
MX (1) | MX150200A (xx) |
ZA (1) | ZA813595B (xx) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4446389A (en) * | 1982-03-15 | 1984-05-01 | Ampex Corporation | Quadrature tach decoder circuit |
US4520449A (en) * | 1982-07-19 | 1985-05-28 | Allied Corporation | Phase angle detector |
JPS5949561A (ja) * | 1982-09-14 | 1984-03-22 | Mita Ind Co Ltd | 複写紙の搬送方法 |
JPS63225173A (ja) * | 1987-03-16 | 1988-09-20 | Hioki Denki Kk | 検相器 |
JPH04262618A (ja) * | 1991-02-18 | 1992-09-18 | Advantest Corp | 位相検波器 |
US5576618A (en) * | 1994-10-20 | 1996-11-19 | Abb Power T&D Company, Inc. | Process and apparatus for comparing in real time phase differences between phasors |
US6998883B2 (en) * | 2004-02-25 | 2006-02-14 | Analog Devices, Inc. | Synchronization of signals |
US7098833B2 (en) * | 2004-06-04 | 2006-08-29 | Texas Instruments Incorporated | Tri-value decoder circuit and method |
US7936167B2 (en) * | 2008-06-17 | 2011-05-03 | Bwi Company Limited S.A. | Rotary velocity sensor and rotary position and velocity sensor |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3430148A (en) * | 1966-03-14 | 1969-02-25 | Xerox Corp | Phase comparator circuit for providing varying width signal which is a function of phase difference and angle of two input signals |
US3517322A (en) * | 1968-01-22 | 1970-06-23 | Atomic Energy Commission | Phase detector |
US3588710A (en) * | 1968-08-05 | 1971-06-28 | Westinghouse Electric Corp | Digital phase detection circuitry |
BE792458A (fr) * | 1971-12-10 | 1973-03-30 | Telettra Lab Telefon | Systeme et dispositif d'un detecteur phase-frequence entre signaux electriques |
US3755747A (en) * | 1972-09-25 | 1973-08-28 | Gen Motors Corp | Circuit for producing an output signal pulse of a width equal to the period between separated input signal pulse pairs |
SE385638B (sv) * | 1974-09-19 | 1976-07-12 | Asea Ab | Anordning for att bestemma fasleget mellan minst tva signaler |
GB1547360A (en) * | 1975-12-01 | 1979-06-13 | Gen Electric Co Ltd | Apparatus for indicating the sequence of alternating current signals |
DE2842279C2 (de) * | 1978-09-28 | 1983-01-20 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur Bestimmung des Vorzeichens der gegenseitigen Phasenlage zweier zueinander in Beziehung zu setzender Flanken zweier Signale oder Impulse |
-
1980
- 1980-06-10 US US06/158,105 patent/US4337435A/en not_active Expired - Lifetime
-
1981
- 1981-05-27 ZA ZA00813595A patent/ZA813595B/xx unknown
- 1981-06-01 DE DE8181302402T patent/DE3168747D1/de not_active Expired
- 1981-06-01 EP EP81302402A patent/EP0041809B1/en not_active Expired
- 1981-06-08 BR BR8103596A patent/BR8103596A/pt unknown
- 1981-06-09 ES ES502873A patent/ES502873A0/es active Granted
- 1981-06-09 MX MX187722A patent/MX150200A/es unknown
- 1981-06-10 JP JP8834281A patent/JPS5726766A/ja active Pending
- 1981-06-10 KR KR1019810002071A patent/KR830006984A/ko unknown
Also Published As
Publication number | Publication date |
---|---|
ES8300204A1 (es) | 1982-10-01 |
EP0041809A2 (en) | 1981-12-16 |
MX150200A (es) | 1984-03-29 |
JPS5726766A (en) | 1982-02-12 |
KR830006984A (ko) | 1983-10-12 |
US4337435A (en) | 1982-06-29 |
EP0041809B1 (en) | 1985-02-06 |
ES502873A0 (es) | 1982-10-01 |
BR8103596A (pt) | 1982-03-02 |
DE3168747D1 (en) | 1985-03-21 |
EP0041809A3 (en) | 1982-05-12 |
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