JPS54160156A - Detection circuit - Google Patents

Detection circuit

Info

Publication number
JPS54160156A
JPS54160156A JP6952678A JP6952678A JPS54160156A JP S54160156 A JPS54160156 A JP S54160156A JP 6952678 A JP6952678 A JP 6952678A JP 6952678 A JP6952678 A JP 6952678A JP S54160156 A JPS54160156 A JP S54160156A
Authority
JP
Japan
Prior art keywords
transistor
circuit
time constant
low frequency
amplification factor
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
JP6952678A
Other languages
Japanese (ja)
Inventor
Hiroto Yasumura
Hiroshi Gomi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6952678A priority Critical patent/JPS54160156A/en
Publication of JPS54160156A publication Critical patent/JPS54160156A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To facilitate an easy formation of an intergated circuit as well as to enhance the detection efficiency at the low frequency band by providing the time constant discharge means comprising the transistor circuit featuring a large time constant.
CONSTITUTION: The input given from amplitude modulation signal source 20 is amplified 21 and then supplied to transistor 26 incorporating time constant circuit 27. Circuit 27 comprises the composite transistor circuit of capacitor 28, transistor 29 and 32, diode-connected transistor 30 plus resistance 33 and 31. In this case, the time constant depends on the DC amplification factor of transistor 29 and the current amplification factor of the composite transistor circuit, and the latter is decided by the value of resistance 31 and 33. Accordingly, the time constant can be decided under good conditions even with the low frequency and the dispersion of the elements, thus ensuring a highly efficient detection with easy formation into an integrated circuit.
COPYRIGHT: (C)1979,JPO&Japio
JP6952678A 1978-06-09 1978-06-09 Detection circuit Pending JPS54160156A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6952678A JPS54160156A (en) 1978-06-09 1978-06-09 Detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6952678A JPS54160156A (en) 1978-06-09 1978-06-09 Detection circuit

Publications (1)

Publication Number Publication Date
JPS54160156A true JPS54160156A (en) 1979-12-18

Family

ID=13405248

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6952678A Pending JPS54160156A (en) 1978-06-09 1978-06-09 Detection circuit

Country Status (1)

Country Link
JP (1) JPS54160156A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132212U (en) * 1983-02-22 1984-09-05 三洋電機株式会社 AM detection circuit
JPS6257418U (en) * 1985-09-30 1987-04-09

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136581A (en) * 1974-09-17 1976-03-27 Seconic Kk TAIMUSUITSUCHI
JPS5345950A (en) * 1976-10-08 1978-04-25 Hitachi Ltd Circuit obtaining high resistivity

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5136581A (en) * 1974-09-17 1976-03-27 Seconic Kk TAIMUSUITSUCHI
JPS5345950A (en) * 1976-10-08 1978-04-25 Hitachi Ltd Circuit obtaining high resistivity

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132212U (en) * 1983-02-22 1984-09-05 三洋電機株式会社 AM detection circuit
JPH0346574Y2 (en) * 1983-02-22 1991-10-02
JPS6257418U (en) * 1985-09-30 1987-04-09
JPH057765Y2 (en) * 1985-09-30 1993-02-26

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