JPS6478521A - Gate coupling input system signal input circuit - Google Patents

Gate coupling input system signal input circuit

Info

Publication number
JPS6478521A
JPS6478521A JP62235628A JP23562887A JPS6478521A JP S6478521 A JPS6478521 A JP S6478521A JP 62235628 A JP62235628 A JP 62235628A JP 23562887 A JP23562887 A JP 23562887A JP S6478521 A JPS6478521 A JP S6478521A
Authority
JP
Japan
Prior art keywords
output voltage
infrared ray
fet
nearly
diffusion layer
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
Application number
JP62235628A
Other languages
Japanese (ja)
Other versions
JPH0718759B2 (en
Inventor
Yoshihiro Miyamoto
Yuichiro Ito
Kazuya Kubo
Nobuyuki Kajiwara
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62235628A priority Critical patent/JPH0718759B2/en
Priority to EP88308435A priority patent/EP0308169B1/en
Publication of JPS6478521A publication Critical patent/JPS6478521A/en
Priority to US07/670,384 priority patent/US5093589A/en
Publication of JPH0718759B2 publication Critical patent/JPH0718759B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Radiation Pyrometers (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Light Receiving Elements (AREA)
  • Electronic Switches (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To improve S/N by feeding back positively an output voltage of a photovoltaic infrared ray sensing element to a base potential of the photovoltaic infrared ray sensor via an impedance conversion means whose gain is <=1. CONSTITUTION:An optical current caused by an infrared ray received by the photovoltaic infrared ray sensing PV element 1 and an output voltage decided by the internal resistor of the element 1 are given to a gate electrode 21 corresponding to the gate of an FET 6 by an N<+> diffusion layer 11. Then the signal is fed back positively to the base 10 of the element 1 from the N<+> diffusion layer 17 while impedance conversion is applied by the FET 6. Thus, the gain of the source follower by the FET 6 is realized easily for nearly 0.9, then the output voltage is improved by nearly 10 times. Then the PV element output voltage is increased even under at a high temperature condition in a long wavelength light receiving PV element and the S/N of the signal injected to the signal processing circuit is improved.
JP62235628A 1987-09-14 1987-09-19 Gate coupled input type signal input circuit Expired - Lifetime JPH0718759B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP62235628A JPH0718759B2 (en) 1987-09-19 1987-09-19 Gate coupled input type signal input circuit
EP88308435A EP0308169B1 (en) 1987-09-14 1988-09-13 Charge injection circuit
US07/670,384 US5093589A (en) 1987-09-14 1991-03-15 Charge injection circuit having impedance conversion means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62235628A JPH0718759B2 (en) 1987-09-19 1987-09-19 Gate coupled input type signal input circuit

Publications (2)

Publication Number Publication Date
JPS6478521A true JPS6478521A (en) 1989-03-24
JPH0718759B2 JPH0718759B2 (en) 1995-03-06

Family

ID=16988829

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62235628A Expired - Lifetime JPH0718759B2 (en) 1987-09-14 1987-09-19 Gate coupled input type signal input circuit

Country Status (1)

Country Link
JP (1) JPH0718759B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006282277A (en) * 2005-03-10 2006-10-19 Gifu Plast Ind Co Ltd Pallet and molding method of the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101578084B1 (en) * 2015-06-08 2015-12-16 이용철 Parallel support block for vise

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006282277A (en) * 2005-03-10 2006-10-19 Gifu Plast Ind Co Ltd Pallet and molding method of the same

Also Published As

Publication number Publication date
JPH0718759B2 (en) 1995-03-06

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