JPS55163461A - Absolute value detection circuit - Google Patents
Absolute value detection circuitInfo
- Publication number
- JPS55163461A JPS55163461A JP7293779A JP7293779A JPS55163461A JP S55163461 A JPS55163461 A JP S55163461A JP 7293779 A JP7293779 A JP 7293779A JP 7293779 A JP7293779 A JP 7293779A JP S55163461 A JPS55163461 A JP S55163461A
- Authority
- JP
- Japan
- Prior art keywords
- absolute value
- terminal
- output
- detection circuit
- value detection
- 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
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
PURPOSE: To detect an absolute value through a simple circuit configuration by using a diode, an outputting transistor and a constant current load.
CONSTITUTION: An input voltage is impressed on an input terminal 21, which is connected to a noninverted input terminal of an operational amplifier 22. An output terminal of the operational amplifier 22 is connected to an inverted input terminal. Transistors 231, 241, 246 are of a shape, and a level shift diode 242 and a transistor 243 are of a shape in emitter area. An input voltage is subjected to a half-wave rectification; when a condenser is connected between an output terminal 25 and an earthing terminal, an output voltage is integrated to obtain an absolute value output.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7293779A JPS55163461A (en) | 1979-06-07 | 1979-06-07 | Absolute value detection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7293779A JPS55163461A (en) | 1979-06-07 | 1979-06-07 | Absolute value detection circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55163461A true JPS55163461A (en) | 1980-12-19 |
Family
ID=13503772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7293779A Pending JPS55163461A (en) | 1979-06-07 | 1979-06-07 | Absolute value detection circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55163461A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3502212A1 (en) | 1985-01-24 | 1986-07-24 | Telefunken electronic GmbH, 7100 Heilbronn | Circuit for full-wave detection of a load current |
JP2021040420A (en) * | 2019-09-03 | 2021-03-11 | 三菱重工サーマルシステムズ株式会社 | Converter device, control method, and program |
-
1979
- 1979-06-07 JP JP7293779A patent/JPS55163461A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3502212A1 (en) | 1985-01-24 | 1986-07-24 | Telefunken electronic GmbH, 7100 Heilbronn | Circuit for full-wave detection of a load current |
JP2021040420A (en) * | 2019-09-03 | 2021-03-11 | 三菱重工サーマルシステムズ株式会社 | Converter device, control method, and program |
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