JPS5612563A - Circuit for testing digital ic - Google Patents

Circuit for testing digital ic

Info

Publication number
JPS5612563A
JPS5612563A JP8898879A JP8898879A JPS5612563A JP S5612563 A JPS5612563 A JP S5612563A JP 8898879 A JP8898879 A JP 8898879A JP 8898879 A JP8898879 A JP 8898879A JP S5612563 A JPS5612563 A JP S5612563A
Authority
JP
Japan
Prior art keywords
transmission line
secondary coil
inductance
series
circuit
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
JP8898879A
Other languages
Japanese (ja)
Inventor
Michihiko Oota
Yuzo Usui
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 JP8898879A priority Critical patent/JPS5612563A/en
Publication of JPS5612563A publication Critical patent/JPS5612563A/en
Pending legal-status Critical Current

Links

Landscapes

  • Tests Of Electronic Circuits (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE: To prevent damage to a test piece or a malfunction by using the primary coil of a pulse transformer, which is connected to the transmission line in series, to function as inductance.
CONSTITUTION: The transmission line 22 is connected to the primary coil 24a of the pulse transformer 24 in series, and the resistance 26 by which current in the secondary coil is adjusted and the DC power supply 27 are connected to the secondary coil 24b in series. When the secondary coil 24b is opened by the switch 25, a self-inductance of the primary coil 24a is produced in the transmission line 22. On the other hand, the self-inductance that develops in the transmission line 22 can be reduced to the extent that it may be disregarded by closing the switch 25 to feed a required current to the secondary coil 24b.
COPYRIGHT: (C)1981,JPO&Japio
JP8898879A 1979-07-13 1979-07-13 Circuit for testing digital ic Pending JPS5612563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8898879A JPS5612563A (en) 1979-07-13 1979-07-13 Circuit for testing digital ic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8898879A JPS5612563A (en) 1979-07-13 1979-07-13 Circuit for testing digital ic

Publications (1)

Publication Number Publication Date
JPS5612563A true JPS5612563A (en) 1981-02-06

Family

ID=13958175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8898879A Pending JPS5612563A (en) 1979-07-13 1979-07-13 Circuit for testing digital ic

Country Status (1)

Country Link
JP (1) JPS5612563A (en)

Similar Documents

Publication Publication Date Title
JPS57123426A (en) Electric power converting circuit
JPS5612563A (en) Circuit for testing digital ic
JPS5416644A (en) Protective device for on-load tap changer
JPS53102662A (en) Driving circuit for pulse transformer
JPS5413921A (en) Power transmission apparatus
JPS5330749A (en) Tap control circuit for ac-dc change tap transformer
JPS51116916A (en) Self-excited circuit capable of appropriately using a shunt self-excit ed generator for welding operation
JPS52129475A (en) Load current detecting circuit
JPS5287615A (en) Testing method for transformer
JPS51141342A (en) Automatic voltage adjuster
JPS52101444A (en) Tripping circuit for leakage breaker
JPS5391361A (en) Power supply device
JPS5236861A (en) Remote control circuit for electric cleaner and the like
JPS5324528A (en) Prevention device of electric shock
JPS53123858A (en) Extra high voltage power interruptor
JPS5426422A (en) Low reactive power device for external commutated inverter
JPS5432941A (en) Timing controller
JPS5392424A (en) Autotransformer
JPS5317948A (en) Protective circuit for overcurrent
JPS547141A (en) Earthing detector
JPS5454253A (en) Ratio differential relay device
JPS5513949A (en) Coil in transformer
JPS5324526A (en) Prevention device of electric shock
JPS5384120A (en) Iron resonant transformer drive circuit
JPS5577399A (en) Overvoltage prevention circuit for electricity generator