CH609792A5 - - Google Patents
Info
- Publication number
- CH609792A5 CH609792A5 CH125977A CH125977A CH609792A5 CH 609792 A5 CH609792 A5 CH 609792A5 CH 125977 A CH125977 A CH 125977A CH 125977 A CH125977 A CH 125977A CH 609792 A5 CH609792 A5 CH 609792A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/127—Arrangements for measuring electric power or power factor by using pulse modulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
- G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Measurement Of Current Or Voltage (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Analogue/Digital Conversion (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7603766A FR2341164A1 (fr) | 1976-02-11 | 1976-02-11 | Dispositif correcteur d'erreur de multiplication analogique notamment pour wattmetre de precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH609792A5 true CH609792A5 (US06373033-20020416-M00071.png) | 1979-03-15 |
Family
ID=9168997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH125977A CH609792A5 (US06373033-20020416-M00071.png) | 1976-02-11 | 1977-02-02 |
Country Status (6)
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4242634A (en) * | 1978-05-06 | 1980-12-30 | Enertec | Electronic multiplying circuits |
| US4217546A (en) * | 1978-12-11 | 1980-08-12 | General Electric Company | Electronic energy consumption meter and system with automatic error correction |
| US4286214A (en) * | 1979-05-07 | 1981-08-25 | General Electric Company | Current sensor for phase inversion-modulation of AC signals |
| CA1199070A (en) * | 1980-10-06 | 1986-01-07 | Prentice G. Moore | Electronic watt/var transducer |
| US4498138A (en) * | 1980-10-06 | 1985-02-05 | Square D Company | Electronic watt/var transducer |
| US4408283A (en) * | 1981-06-08 | 1983-10-04 | Transdata, Inc. | Time division multiplier transducer with digitally derived phase shift adjustment for reactive power and energy measurement |
| US4933633A (en) * | 1981-06-09 | 1990-06-12 | Adec, Inc. | Computer controlled energy monitoring system |
| US4608533A (en) * | 1983-06-22 | 1986-08-26 | Electric Power Research Institute, Inc. | Automatic compensation circuit for use with analog multiplier |
| US4787054A (en) * | 1983-07-25 | 1988-11-22 | Cain Encoder Co. | Interdial compensation technique for angular position detectors |
| JPS61292067A (ja) * | 1985-06-19 | 1986-12-22 | Mitsubishi Electric Corp | 電力量測定方法 |
| US4713608A (en) * | 1986-03-06 | 1987-12-15 | Computer Power Systems Corporation | Apparatus for providing cost efficient power measurement |
| US4924412A (en) * | 1987-06-25 | 1990-05-08 | Schlumberger Industries, Inc. | Integrated poly-phase power meter |
| US4926131A (en) * | 1987-06-25 | 1990-05-15 | Schlumberger Industries, Inc. | Triangle waveform generator for pulse-width amplitude multiplier |
| US4786877A (en) * | 1987-06-25 | 1988-11-22 | Sangamo-Weston Incorporated | Amplifier for voltage or current to frequency converter |
| US6184810B1 (en) * | 1997-08-29 | 2001-02-06 | Texas Instruments Incorporated | Method and apparatus to generate mixed signal test stimulus |
| EP1715579B1 (en) * | 2005-04-19 | 2010-03-10 | Alcatel Lucent | Analogue multiplier |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3466460A (en) * | 1967-01-20 | 1969-09-09 | Weston Instruments Inc | Time division multiplier |
| GB1269046A (en) * | 1968-05-01 | 1972-03-29 | Emi Ltd | Improvements relating to multiplying circuit arrangements |
| US3536904A (en) * | 1968-09-23 | 1970-10-27 | Gen Electric | Four-quadrant pulse width multiplier |
| US3712977A (en) * | 1971-02-03 | 1973-01-23 | Foxboro Co | Analog electronic multiplier,divider and square rooter using pulse-height and pulse-width modulation |
| US3746851A (en) * | 1971-12-21 | 1973-07-17 | Technical Management Services | Multiplier, divider and wattmeter using a switching circuit and a pulse-width and frequency modulator |
| US3820033A (en) * | 1973-05-16 | 1974-06-25 | Tektronix Inc | Mos-fet sample and hold system for digitizing high frequency signals |
| US3959724A (en) * | 1974-07-22 | 1976-05-25 | Rochester Instrument Systems, Inc. | Electronic wattmeter |
-
1976
- 1976-02-11 FR FR7603766A patent/FR2341164A1/fr active Granted
-
1977
- 1977-02-01 DE DE2704076A patent/DE2704076C3/de not_active Expired
- 1977-02-02 CH CH125977A patent/CH609792A5/xx not_active IP Right Cessation
- 1977-02-07 US US05/766,481 patent/US4118787A/en not_active Expired - Lifetime
- 1977-02-10 JP JP1401777A patent/JPS52103937A/ja active Pending
- 1977-02-10 SE SE7701489A patent/SE7701489L/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2704076B2 (de) | 1980-05-22 |
| DE2704076C3 (de) | 1981-02-12 |
| FR2341164A1 (fr) | 1977-09-09 |
| FR2341164B1 (US06373033-20020416-M00071.png) | 1981-06-26 |
| JPS52103937A (en) | 1977-08-31 |
| SE7701489L (sv) | 1977-08-12 |
| DE2704076A1 (de) | 1977-08-18 |
| US4118787A (en) | 1978-10-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |