JPS5587052A - Measuring circuit for instantaneous power - Google Patents
Measuring circuit for instantaneous powerInfo
- Publication number
- JPS5587052A JPS5587052A JP15917678A JP15917678A JPS5587052A JP S5587052 A JPS5587052 A JP S5587052A JP 15917678 A JP15917678 A JP 15917678A JP 15917678 A JP15917678 A JP 15917678A JP S5587052 A JPS5587052 A JP S5587052A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- current
- fed
- positive
- load
- 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.)
- Granted
Links
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE:To increase the linearity and temperature stability and to obtain high accuracy, by picking up the current and voltage of load with differential amplifier respectively, and taking the product of the outputs via the FET type photo coupler at the operational amplifier performing the operation at positive and negative half cycles. CONSTITUTION:The voltage between the load L and the terminal of the shunt R1 in series with it is in differential amplification A1, the output Vi is fed to the light emitting diodes D, D' of FET type photo couplers F, F' via the voltage current converter C, C', and the currents i+, i- proportional to the current of measured circuit flow. On the other hand, the voltage e is divided at the differential amplifier A2, and the output Ve is fed to the operational amplifiers A3, A4 via the resistors Rx, Rx' of the photo electric conversion element. The outputs V3 and V4 of the operational amplifiers A3, A4 appeared at positive and negative half cycles of current are fed to the input of the differential amplifier A6, and the product between Vi and Ve over the both periods of positive and negative polarity can be obtained from the output V5. Thus, the product between the voltage e and current i of the load L of measured circuit, i.e., electric power can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15917678A JPS5928866B2 (en) | 1978-12-26 | 1978-12-26 | Instantaneous power measurement circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15917678A JPS5928866B2 (en) | 1978-12-26 | 1978-12-26 | Instantaneous power measurement circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5587052A true JPS5587052A (en) | 1980-07-01 |
| JPS5928866B2 JPS5928866B2 (en) | 1984-07-16 |
Family
ID=15687950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15917678A Expired JPS5928866B2 (en) | 1978-12-26 | 1978-12-26 | Instantaneous power measurement circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5928866B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019221144A1 (en) | 2018-05-17 | 2019-11-21 | 日本碍子株式会社 | Lithium secondary battery |
| WO2019221146A1 (en) | 2018-05-17 | 2019-11-21 | 日本碍子株式会社 | Lithium secondary battery |
| WO2019221140A1 (en) | 2018-05-17 | 2019-11-21 | 日本碍子株式会社 | Lithium secondary battery |
| WO2019221143A1 (en) | 2018-05-17 | 2019-11-21 | 日本碍子株式会社 | Lithium secondary battery |
| WO2020217579A1 (en) | 2019-04-26 | 2020-10-29 | 日本碍子株式会社 | Lithium secondary battery |
| WO2021100283A1 (en) | 2019-11-20 | 2021-05-27 | 日本碍子株式会社 | Lithium secondary battery and method for measuring state of charge of same |
| CN116027103A (en) * | 2023-03-29 | 2023-04-28 | 荣耀终端有限公司 | Power consumption detection circuit, power consumption detection chip and terminal equipment |
-
1978
- 1978-12-26 JP JP15917678A patent/JPS5928866B2/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019221144A1 (en) | 2018-05-17 | 2019-11-21 | 日本碍子株式会社 | Lithium secondary battery |
| WO2019221146A1 (en) | 2018-05-17 | 2019-11-21 | 日本碍子株式会社 | Lithium secondary battery |
| WO2019221140A1 (en) | 2018-05-17 | 2019-11-21 | 日本碍子株式会社 | Lithium secondary battery |
| WO2019221143A1 (en) | 2018-05-17 | 2019-11-21 | 日本碍子株式会社 | Lithium secondary battery |
| WO2020217579A1 (en) | 2019-04-26 | 2020-10-29 | 日本碍子株式会社 | Lithium secondary battery |
| WO2021100283A1 (en) | 2019-11-20 | 2021-05-27 | 日本碍子株式会社 | Lithium secondary battery and method for measuring state of charge of same |
| CN116027103A (en) * | 2023-03-29 | 2023-04-28 | 荣耀终端有限公司 | Power consumption detection circuit, power consumption detection chip and terminal equipment |
| CN116027103B (en) * | 2023-03-29 | 2023-09-15 | 荣耀终端有限公司 | Power consumption detection circuit, power consumption detection chip and terminal equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5928866B2 (en) | 1984-07-16 |
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