JPS54141174A - Supply current value switching circuit - Google Patents

Supply current value switching circuit

Info

Publication number
JPS54141174A
JPS54141174A JP4889078A JP4889078A JPS54141174A JP S54141174 A JPS54141174 A JP S54141174A JP 4889078 A JP4889078 A JP 4889078A JP 4889078 A JP4889078 A JP 4889078A JP S54141174 A JPS54141174 A JP S54141174A
Authority
JP
Japan
Prior art keywords
current
supplied
current value
switching circuit
supply current
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
JP4889078A
Other languages
Japanese (ja)
Other versions
JPS6213629B2 (en
Inventor
Shinichi Hanayama
Hiroshi Okamoto
Masaru Gushiken
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.)
ASIA SEISAKUSHO KK
Toshiba Corp
Original Assignee
ASIA SEISAKUSHO KK
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 ASIA SEISAKUSHO KK, Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical ASIA SEISAKUSHO KK
Priority to JP4889078A priority Critical patent/JPS54141174A/en
Publication of JPS54141174A publication Critical patent/JPS54141174A/en
Publication of JPS6213629B2 publication Critical patent/JPS6213629B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To switch the value of current supplied to semiconductor elements, etc. at high speeds by providing the switching elements connected between the current part and arbitrary potential point.
CONSTITUTION: When a transistor 24 goes OFF, it turns out that the output current I2 of a constant current source 14 is supplied to the semiconductor element to be measured through current path 18 serially through two diodes 21, 22. At this time the diodes 19, 20 are connected in respectively reverse biasing directions and therefore there is no likelihood that this current I2 flows reverse to the other current path 17. When the transistors 23, 24 both go OFF, it turns out that the respective currents I1, I2 of the constant current sources 13, 14 are supplied to the semiconductor elememt to be measured parallel through current paths 17, 18 respectively.
COPYRIGHT: (C)1979,JPO&Japio
JP4889078A 1978-04-25 1978-04-25 Supply current value switching circuit Granted JPS54141174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4889078A JPS54141174A (en) 1978-04-25 1978-04-25 Supply current value switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4889078A JPS54141174A (en) 1978-04-25 1978-04-25 Supply current value switching circuit

Publications (2)

Publication Number Publication Date
JPS54141174A true JPS54141174A (en) 1979-11-02
JPS6213629B2 JPS6213629B2 (en) 1987-03-27

Family

ID=12815859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4889078A Granted JPS54141174A (en) 1978-04-25 1978-04-25 Supply current value switching circuit

Country Status (1)

Country Link
JP (1) JPS54141174A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003035729A (en) * 2001-07-24 2003-02-07 Hioki Ee Corp Clamp sensor
JP2009208042A (en) * 2008-03-06 2009-09-17 Hitachi Plant Technologies Ltd Device for tilting scum skimmer back and forth for sludge scraper
JP2012078287A (en) * 2010-10-05 2012-04-19 Advantest Corp Testing device and testing method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003035729A (en) * 2001-07-24 2003-02-07 Hioki Ee Corp Clamp sensor
JP2009208042A (en) * 2008-03-06 2009-09-17 Hitachi Plant Technologies Ltd Device for tilting scum skimmer back and forth for sludge scraper
JP2012078287A (en) * 2010-10-05 2012-04-19 Advantest Corp Testing device and testing method

Also Published As

Publication number Publication date
JPS6213629B2 (en) 1987-03-27

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