JPS5533654A - Current comparating tester - Google Patents

Current comparating tester

Info

Publication number
JPS5533654A
JPS5533654A JP10704078A JP10704078A JPS5533654A JP S5533654 A JPS5533654 A JP S5533654A JP 10704078 A JP10704078 A JP 10704078A JP 10704078 A JP10704078 A JP 10704078A JP S5533654 A JPS5533654 A JP S5533654A
Authority
JP
Japan
Prior art keywords
current
integration
circuit
comparating
analog switch
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
JP10704078A
Other languages
Japanese (ja)
Inventor
Makoto Urabe
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10704078A priority Critical patent/JPS5533654A/en
Publication of JPS5533654A publication Critical patent/JPS5533654A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Individual Semiconductor Devices (AREA)

Abstract

PURPOSE: To provide a comparating tester, which can accomplish the comparing tests between the summed power source terminal current during any time period and the summed expected current and accordingly can accomplish the comparating tests of a mean current value, by providing an analog switch for controlling the charge and discharge of an integrating capacitor.
CONSTITUTION: A DC operational amplifier 5 starts the addition and integration of both the terminal voltages of a current detector 5, which are to be applied to the input resistors 10-1 and 10-2 of the operational amplifier, and the output values of a limit voltage circuit 2 of the opposite polarity to that of the voltage values and to be applied to another input resistor 10-3 by setting an FF circuit in response to an integration command signal 17 and by turning off an analog switch 13. An FF circuit 8 is reset in response to an integration terminating signal 18 so that the integration is ended by turning on the analog switch 13. The output value of the amplifier 5 means the difference between the integrated power source terminal current in the integrated time and the integrated expected current and is compared by a comparator 6 with a standard potential so that the resultant output is judged with the strobe signal 19 which is generated at the timing preset within the integrating time. Thus, itis possible to generate a judging circuit output signal 20.
COPYRIGHT: (C)1980,JPO&Japio
JP10704078A 1978-08-31 1978-08-31 Current comparating tester Pending JPS5533654A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10704078A JPS5533654A (en) 1978-08-31 1978-08-31 Current comparating tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10704078A JPS5533654A (en) 1978-08-31 1978-08-31 Current comparating tester

Publications (1)

Publication Number Publication Date
JPS5533654A true JPS5533654A (en) 1980-03-08

Family

ID=14448988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10704078A Pending JPS5533654A (en) 1978-08-31 1978-08-31 Current comparating tester

Country Status (1)

Country Link
JP (1) JPS5533654A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172673A (en) * 1981-04-16 1982-10-23 Nippon Electric Co Method of connecting substrate to connector
JPS6170777U (en) * 1984-10-15 1986-05-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172673A (en) * 1981-04-16 1982-10-23 Nippon Electric Co Method of connecting substrate to connector
JPS6170777U (en) * 1984-10-15 1986-05-14

Similar Documents

Publication Publication Date Title
JPS5676613A (en) Automatic offset calibrating circuit for operational amplifier
JPS57124946A (en) Pulse detection circuit
CA2075127A1 (en) Integrated circuit sampled-and-hold phase detector with integrated current setting resistor
EP0415490A3 (en) Circuit arrangement for power supply to a load
JPS5486339A (en) Electric charging method and device
JPS5533654A (en) Current comparating tester
JPS6141227A (en) Improved detector and integrator circuit and method of usingsame
ES477245A1 (en) Input stage for automotive ignition control circuit
KR870002699A (en) Low Level Voltage / Pulse Converter
JPS5613598A (en) Sample holding circuit
JPS5792904A (en) Power amplifier
JPS5586059A (en) Ion micro analyser
JPS55131820A (en) Constant-voltage power source unit
JPS5555267A (en) Diagnosis device of analog input device
JPS5583336A (en) Digital-to-analog converter
JPS55124121A (en) Analog switch circuit for triggering exposure control circuit
JPS5511257A (en) Corona discharger-charger
JPS62237370A (en) Detector for residual quantity of electricity in battery
JPS5744814A (en) Waveform regulating circuit
SU552676A1 (en) Standby Multivibrator
JPH0337047Y2 (en)
JPS55127728A (en) Integrating analogue digital converter
JPS5797046A (en) Air-fuel ratio feedback controller
JPS6479998A (en) Sample and hold circuit
JPS55150616A (en) Pulse width amplifying circuit