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JPS5619209A - Wave detecting circuit - Google Patents

Wave detecting circuit

Info

Publication number
JPS5619209A
JPS5619209A JP9627979A JP9627979A JPS5619209A JP S5619209 A JPS5619209 A JP S5619209A JP 9627979 A JP9627979 A JP 9627979A JP 9627979 A JP9627979 A JP 9627979A JP S5619209 A JPS5619209 A JP S5619209A
Authority
JP
Japan
Prior art keywords
diode
voltage
resistance
temperature
wave detecting
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
Application number
JP9627979A
Other languages
Japanese (ja)
Inventor
Yoshinori Uchida
Naoyuki Minami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9627979A priority Critical patent/JPS5619209A/en
Publication of JPS5619209A publication Critical patent/JPS5619209A/en
Pending legal-status Critical Current

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  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE: To ensure an accurate detection of the signal component, by varying the bias voltage to be applied to the serial circuit of the wave detecting diode and the load resistance in accordance with the temperature and thus obtain the constant bias voltage of the diode.
CONSTITUTION: The same property is secured between temperature detecting diode 2, wave detecting diode 1 as well as between feedback resistance 24 and load resistance 14. Then the voltage generated at terminal 22 is applied to the serial circuit of the diode and resistance 14. As a result, the current of a fixed value can be flowed regardless of the temperature of diode 1 as long as the temperature of diode 2 is identical to that of diode 1. Accordingly, the wave detection gain can be kept constant since the constant bias current flows to diode 1 regardless of the temperature. In this case, voltage Vi caused at resistance 14 equals the sum of component VS produced by the signal and voltage VB produced by the bias current flowing to resistance 14. And voltage VB' at the joint between diode 2 and resistance 24 is nearly identical to voltage VB. Accordingly, signal component VS can be obtained by giving an operation to Vi-VB' through the analog arithmetic circuit consisting of operation amplifiers 32∼25.
COPYRIGHT: (C)1981,JPO&Japio
JP9627979A 1979-07-25 1979-07-25 Wave detecting circuit Pending JPS5619209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9627979A JPS5619209A (en) 1979-07-25 1979-07-25 Wave detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9627979A JPS5619209A (en) 1979-07-25 1979-07-25 Wave detecting circuit

Publications (1)

Publication Number Publication Date
JPS5619209A true JPS5619209A (en) 1981-02-23

Family

ID=14160677

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9627979A Pending JPS5619209A (en) 1979-07-25 1979-07-25 Wave detecting circuit

Country Status (1)

Country Link
JP (1) JPS5619209A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502015A (en) * 1982-03-31 1985-02-26 General Electric Company Diode detector with linearity compensating circuit
EP0297848A2 (en) * 1987-07-02 1989-01-04 Nec Corporation Temperature stabilized RF detector
JPH04239803A (en) * 1991-01-23 1992-08-27 Rohm Co Ltd Detection circuit
US5283973A (en) * 1991-07-05 1994-02-08 Daiwa Seiko, Inc. Fishing line guide
US5419075A (en) * 1991-07-05 1995-05-30 Daiwa Seiko, Inc. Fishing line guide

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4502015A (en) * 1982-03-31 1985-02-26 General Electric Company Diode detector with linearity compensating circuit
EP0297848A2 (en) * 1987-07-02 1989-01-04 Nec Corporation Temperature stabilized RF detector
JPS6410704A (en) * 1987-07-02 1989-01-13 Nec Corp High frequency detecting circuit
JPH04239803A (en) * 1991-01-23 1992-08-27 Rohm Co Ltd Detection circuit
US5283973A (en) * 1991-07-05 1994-02-08 Daiwa Seiko, Inc. Fishing line guide
US5419075A (en) * 1991-07-05 1995-05-30 Daiwa Seiko, Inc. Fishing line guide

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