KR920003537B1 - 적산기(multiplier) - Google Patents
적산기(multiplier) Download PDFInfo
- Publication number
- KR920003537B1 KR920003537B1 KR1019880012356A KR880012356A KR920003537B1 KR 920003537 B1 KR920003537 B1 KR 920003537B1 KR 1019880012356 A KR1019880012356 A KR 1019880012356A KR 880012356 A KR880012356 A KR 880012356A KR 920003537 B1 KR920003537 B1 KR 920003537B1
- Authority
- KR
- South Korea
- Prior art keywords
- input
- pulse
- signal
- signals
- converting
- 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.)
- Expired
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manipulation Of Pulses (AREA)
- Amplitude Modulation (AREA)
- Analogue/Digital Conversion (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Measurement Of Current Or Voltage (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
Abstract
Description
Claims (7)
- (A) 두 입력신호를 서로 비동기하며 또한 입력신호 레벨에 대응하는 펄스폭(Ta, Tb)를 갖는 두 펄스신호(a,b)로 변환시키는 변환수단(35, 37)과, (B) 상기 변환수단으로부터 출력된 펄스신호들(a,b)의 어느 주파수보다 더 높은 주파수의 펄스신호(e)를 출력하는 발진 수단(39)과, 그리고 (C)상기 변환수단으로부터의 펄스신호(a,b) 뿐만 아니라 상기 발진수단으로부터의 펄스신호(e)를 처리하여 입력신호 레벨이 적에 비례하는 신호를 제공하기 위한 처리수단(41,43,45,47,49,51,65,67,69)으로 구성되는 것이 특징인 적어도 두 입력신호 레벨들의 적에 비례하는 신호를 제공하기 위한 적산기.
- 제1항에 있어서, 상기 처리수단은 상기 변환수단(35,37)과 발진수단(39)으로부터의 펄스신호들(a,b,e)에 대해 논리연산을 수행하여 상기 변환수단으로부터의 펄스신호들(a,b)의 펄스폭에 따라 상기 발진수단으로부터 소정시간 이내에 출력되는 펄스들의 수를 계산하여 입력신호 레벨의 적에 비례하는 신호를 제공하는 것이 특징인 적산기.
- 제2항에 있어서, 상기 변환수단(35, 37)은 두 입력신호용으로 각각 배열되는 두 펄스폭 변조기로 구성되는 것이 특징인 적산기.
- (A) 입력전압과 입력전류를 서로 비동기하며 또한, 입력전압과 입력전류의 레벨에 대응하는 펄스폭(Ta, Tb)을 각각 갖는 두 펄스신호(a,b)로 변환시키는 변환수단(35,37)과, (B) 상기 변환수단으로부터 출력된 펄스신호들(a,b)의 어느 주파수보다 더 높은 주파수로 펄스신호(e)를 출력하는 발진수단(39)과, (C)상기 변환수단과 상기 발진수단으로부터의 펄스신호들(a,b,e)에 대해 논리 연산을 수행하여 상기 변환수단으로부터의 펄스신호들(a,b)의 펄스폭에 따라 상기 발진수단으로부터의 소정시간이내에 출력된 펄스들의 수를 산출하여 입력전압과 입력전류의 전기에너지 또는 전력을 구하기 위한 처리수단(41,43,45,47,49,51,65,67,69)으로 구성되는 것이 특징인 입력전류와 입력전압을 승산하여 전기에너지를 산출하는 와트-아워 메터.
- 제4항에 있어서, 상기 처리수단으로부터 출력된 펄스의 수를 전기 에너지로서 표시하는 표시수단(71)을 더 포함하는 것이 특징인 와트-아워 메터.
- 제5항에 있어서, 상기 입력전압을 상기 변환수단(35)으로 공급될 회로 저전압으로 변환시키는 전압입력 회로(61)와, 상기 입력전압을 상기 변환수단(37)으로 공급될 회로 저전압으로 변환시키는 전류입력회로(63)를 더 포함하는 것이 특징인 와트-아워 메터.
- 제5항에 있어서, 상기 변환수단(35, 37)은 입력전압과 입력전류용으로 각각 배열되는 두 펄스폭 변조기들로 구성되는 것이 특징인 와트-아워 메터.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62237454A JPH0821049B2 (ja) | 1987-09-24 | 1987-09-24 | 乗算器 |
| JP87-237454 | 1987-09-24 | ||
| JP62-237454 | 1987-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR890005528A KR890005528A (ko) | 1989-05-15 |
| KR920003537B1 true KR920003537B1 (ko) | 1992-05-02 |
Family
ID=17015583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019880012356A Expired KR920003537B1 (ko) | 1987-09-24 | 1988-09-23 | 적산기(multiplier) |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4920312A (ko) |
| EP (1) | EP0308924B1 (ko) |
| JP (1) | JPH0821049B2 (ko) |
| KR (1) | KR920003537B1 (ko) |
| DE (1) | DE3883674T2 (ko) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2239097B (en) * | 1989-12-18 | 1993-08-11 | Gen Electric Co Plc | Electrical power measuring devices |
| JPH0632061B2 (ja) * | 1990-08-27 | 1994-04-27 | 喜光 松本 | アナログ乗算・平均回路及び該回路を使用した電力計回路 |
| US5248935A (en) * | 1991-05-20 | 1993-09-28 | Kabushiki Kaisha Toshiba | Electronic type watthour meter including automatic measuring-error correcting function |
| FR2686994B1 (fr) * | 1992-02-04 | 1997-01-17 | Sagem | Compteur electronique de concommation d'energie electrique. |
| ZA931579B (en) * | 1992-03-06 | 1993-10-06 | South African Micro Electronic | A multiplier circuit and method of operation |
| GB2276012B (en) * | 1993-03-13 | 1997-05-21 | Ampy Automation Digilog | Improved power meter |
| JP3234339B2 (ja) * | 1993-03-19 | 2001-12-04 | アジレント・テクノロジー株式会社 | 電力測定装置および方法 |
| JP2539157B2 (ja) * | 1993-05-31 | 1996-10-02 | 株式会社東芝 | 乗算器 |
| WO1995033210A1 (en) * | 1994-05-26 | 1995-12-07 | Min Li | Electrical energy meter |
| GB2306677B (en) * | 1995-11-02 | 2000-10-04 | Siemens Measurements Ltd | Improvements in or relating to electricity meters |
| TW396276B (en) * | 1996-03-01 | 2000-07-01 | Toshiba Corp | Arithmetic unit |
| US5862069A (en) * | 1996-07-12 | 1999-01-19 | Analog Devices, Inc. | Four quadrant multiplying apparatus and method |
| US20080007983A1 (en) * | 2006-06-28 | 2008-01-10 | Honeywell International, Inc. | Frequency-to-voltage converter with analog multiplication |
| US10649732B2 (en) | 2018-07-31 | 2020-05-12 | Cirrus Logic, Inc. | Processing circuitry |
| GB201901223D0 (en) * | 2019-01-29 | 2019-03-20 | Sentec Ltd | DC current sensor and power meter |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH551013A (de) * | 1972-06-07 | 1974-06-28 | Landis & Gyr Ag | Schaltungsanordnung zur produktbildung aus spannung und strom zwecks messung elektrischer energie. |
| DE2348667B2 (de) * | 1973-09-27 | 1975-08-14 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Elektronischer kWh-Zähler |
| US4055804A (en) * | 1974-12-13 | 1977-10-25 | Mayfield Glenn A | Watt/watthour transducer and amplifier-filter therefor |
| JPS5625088Y2 (ko) * | 1975-01-31 | 1981-06-12 | ||
| US4079313A (en) * | 1977-04-18 | 1978-03-14 | Allen-Bradley Company | Digital watts transducer |
| US4224671A (en) * | 1977-07-30 | 1980-09-23 | Tokyo Shibaura Denki Kabushiki Kaisha | Arithmetic operation apparatus for an electronic watt-hour meter |
| US4498138A (en) * | 1980-10-06 | 1985-02-05 | Square D Company | Electronic watt/var transducer |
| JPS57146121U (ko) * | 1981-03-06 | 1982-09-14 | ||
| JPH0646415B2 (ja) * | 1984-10-23 | 1994-06-15 | 株式会社東芝 | 乗算回路 |
-
1987
- 1987-09-24 JP JP62237454A patent/JPH0821049B2/ja not_active Expired - Fee Related
-
1988
- 1988-09-22 US US07/247,617 patent/US4920312A/en not_active Expired - Lifetime
- 1988-09-22 DE DE88115579T patent/DE3883674T2/de not_active Expired - Fee Related
- 1988-09-22 EP EP88115579A patent/EP0308924B1/en not_active Expired - Lifetime
- 1988-09-23 KR KR1019880012356A patent/KR920003537B1/ko not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0308924A1 (en) | 1989-03-29 |
| JPS6481083A (en) | 1989-03-27 |
| DE3883674D1 (de) | 1993-10-07 |
| JPH0821049B2 (ja) | 1996-03-04 |
| KR890005528A (ko) | 1989-05-15 |
| EP0308924B1 (en) | 1993-09-01 |
| US4920312A (en) | 1990-04-24 |
| DE3883674T2 (de) | 1994-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR920003537B1 (ko) | 적산기(multiplier) | |
| US4250449A (en) | Digital electric energy measuring circuit | |
| US3942110A (en) | Analog to pulse rate converter | |
| US4056774A (en) | Electronic watthour meter circuit | |
| JPS6025745B2 (ja) | 電力測定方法 | |
| US3818340A (en) | Electronic watt-hour meter with digital output representing time-integrated input | |
| US3704414A (en) | Frequency meter | |
| EP0081569A1 (en) | Time division multiplier transducer with digitally derived phase shift adjustment for reactive power and energy measurement | |
| GB1050145A (ko) | ||
| US3648182A (en) | Device for converting two magnitudes into a number of pulses proportional to the integral of their product | |
| US3947763A (en) | C-MOS electronic kWh meter and method for metering electrical energy | |
| US4015140A (en) | Multiplier for producing phase shift error-free signal representing product of out-of-phase inputs | |
| JP3349102B2 (ja) | 電子式電力量計のテスト方法及び電子式電力量計 | |
| US3488588A (en) | Digital voltmeter | |
| US3619663A (en) | Linearity error compensation circuit | |
| JPH06207955A (ja) | π/2移相回路並びにこれを用いた無効電力量計および複合計器 | |
| US3605028A (en) | Circuit arrangement for the multiplication of two variables | |
| US3521038A (en) | Computer apparatus for multiplying two or more analog quantities and providing a digital output | |
| US4910456A (en) | Electronic watt-hour meter with combined multiplier/integrator circuit | |
| US4862074A (en) | Polyphase volt-hour indicating circuit | |
| SU661378A1 (ru) | Цифровой измеритель мощности | |
| RU9969U1 (ru) | Устройство для измерения электрической энергии | |
| RU2039357C1 (ru) | Счетчик электроэнергии | |
| SU920548A1 (ru) | Устройство дл измерени напр жени переменного тока | |
| JPH0215374Y2 (ko) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| PA0109 | Patent application |
St.27 status event code: A-0-1-A10-A12-nap-PA0109 |
|
| PA0201 | Request for examination |
St.27 status event code: A-1-2-D10-D11-exm-PA0201 |
|
| R17-X000 | Change to representative recorded |
St.27 status event code: A-3-3-R10-R17-oth-X000 |
|
| PG1501 | Laying open of application |
St.27 status event code: A-1-1-Q10-Q12-nap-PG1501 |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
St.27 status event code: A-1-2-D10-D21-exm-PE0902 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| T11-X000 | Administrative time limit extension requested |
St.27 status event code: U-3-3-T10-T11-oth-X000 |
|
| P11-X000 | Amendment of application requested |
St.27 status event code: A-2-2-P10-P11-nap-X000 |
|
| P13-X000 | Application amended |
St.27 status event code: A-2-2-P10-P13-nap-X000 |
|
| G160 | Decision to publish patent application | ||
| PG1605 | Publication of application before grant of patent |
St.27 status event code: A-2-2-Q10-Q13-nap-PG1605 |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
St.27 status event code: A-1-2-D10-D22-exm-PE0701 |
|
| GRNT | Written decision to grant | ||
| PR0701 | Registration of establishment |
St.27 status event code: A-2-4-F10-F11-exm-PR0701 |
|
| PR1002 | Payment of registration fee |
St.27 status event code: A-2-2-U10-U11-oth-PR1002 Fee payment year number: 1 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 4 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 5 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 6 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 7 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R13-asn-PN2301 St.27 status event code: A-5-5-R10-R11-asn-PN2301 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 8 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 9 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 10 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 11 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 12 |
|
| FPAY | Annual fee payment |
Payment date: 20040331 Year of fee payment: 13 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 13 |
|
| LAPS | Lapse due to unpaid annual fee | ||
| PC1903 | Unpaid annual fee |
St.27 status event code: A-4-4-U10-U13-oth-PC1903 Not in force date: 20050503 Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE |
|
| PC1903 | Unpaid annual fee |
St.27 status event code: N-4-6-H10-H13-oth-PC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 20050503 |
|
| P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |



