JPS56130954A - Constant-temperature device for transistor - Google Patents

Constant-temperature device for transistor

Info

Publication number
JPS56130954A
JPS56130954A JP3454380A JP3454380A JPS56130954A JP S56130954 A JPS56130954 A JP S56130954A JP 3454380 A JP3454380 A JP 3454380A JP 3454380 A JP3454380 A JP 3454380A JP S56130954 A JPS56130954 A JP S56130954A
Authority
JP
Japan
Prior art keywords
voltage
transistor
vbe
emitter
temperature
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
JP3454380A
Other languages
Japanese (ja)
Other versions
JPH0332222B2 (en
Inventor
Juichi Irie
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP3454380A priority Critical patent/JPS56130954A/en
Publication of JPS56130954A publication Critical patent/JPS56130954A/en
Publication of JPH0332222B2 publication Critical patent/JPH0332222B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Amplifiers (AREA)

Abstract

PURPOSE:To maintain the temperature of a transistor and the vicinity of the transistor constantly by maintaining the emitter current of the transistor constantly and controlling the collector voltage so that the voltage between the base and the emitter becomes a predetermined value to control the quantity of heat therefrom. CONSTITUTION:The emitter current IE of a transistor (Tr) T is maintained constantly, the voltage VBE between the base and the emitter is compared with a reference voltage value VS via an operational ampilfier OP. When the voltage VBE is higher, the output voltage of the amplifier OP and hence the voltage VCE between the collector and the emitter of the Tr T is raised. Since the temperature of the Tr T is accordingly raised and the voltage VBE is reduced, it eventually becomes equal to VS. When the VBE is lower than the VS, vice versa, and the VBE is so controlled as to always become equal to the VS. Thus, the Tr T is always maintained at a predetermined constant temperature, and the temperature of the other Tr disposed in the vicinity thereof can be maintained constantly.
JP3454380A 1980-03-17 1980-03-17 Constant-temperature device for transistor Granted JPS56130954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3454380A JPS56130954A (en) 1980-03-17 1980-03-17 Constant-temperature device for transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3454380A JPS56130954A (en) 1980-03-17 1980-03-17 Constant-temperature device for transistor

Publications (2)

Publication Number Publication Date
JPS56130954A true JPS56130954A (en) 1981-10-14
JPH0332222B2 JPH0332222B2 (en) 1991-05-10

Family

ID=12417208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3454380A Granted JPS56130954A (en) 1980-03-17 1980-03-17 Constant-temperature device for transistor

Country Status (1)

Country Link
JP (1) JPS56130954A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008216914A (en) * 2007-03-07 2008-09-18 Ricoh Co Ltd Guide member and image forming apparatus
JP2010263293A (en) * 2009-04-30 2010-11-18 Shirinkusu Kk Current-voltage conversion circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008216914A (en) * 2007-03-07 2008-09-18 Ricoh Co Ltd Guide member and image forming apparatus
JP2010263293A (en) * 2009-04-30 2010-11-18 Shirinkusu Kk Current-voltage conversion circuit

Also Published As

Publication number Publication date
JPH0332222B2 (en) 1991-05-10

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