JPS54141174A - Supply current value switching circuit - Google Patents
Supply current value switching circuitInfo
- 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
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
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)
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 |
-
1978
- 1978-04-25 JP JP4889078A patent/JPS54141174A/en active Granted
Cited By (3)
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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