RO93758B1 - Method and device for detecting and locating shortcircuits between the tracks of ttl circuit cards - Google Patents

Method and device for detecting and locating shortcircuits between the tracks of ttl circuit cards

Info

Publication number
RO93758B1
RO93758B1 RO122919A RO12291984A RO93758B1 RO 93758 B1 RO93758 B1 RO 93758B1 RO 122919 A RO122919 A RO 122919A RO 12291984 A RO12291984 A RO 12291984A RO 93758 B1 RO93758 B1 RO 93758B1
Authority
RO
Romania
Prior art keywords
short
detecting
locating
node
shortcircuits
Prior art date
Application number
RO122919A
Other languages
Romanian (ro)
Other versions
RO93758A2 (en
Inventor
Ion Agica
Matei Zirra
Original Assignee
îNTREPRINDEREA PENTRU îNTRETINEREA SI REPARAREA UTILAJULUI DE CALCUL
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 îNTREPRINDEREA PENTRU îNTRETINEREA SI REPARAREA UTILAJULUI DE CALCUL filed Critical îNTREPRINDEREA PENTRU îNTRETINEREA SI REPARAREA UTILAJULUI DE CALCUL
Priority to RO122919A priority Critical patent/RO93758B1/en
Publication of RO93758A2 publication Critical patent/RO93758A2/en
Publication of RO93758B1 publication Critical patent/RO93758B1/en

Links

Landscapes

  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

Inventia se refera la o metoda si la un aparat pentru depistarea si localizarea scurtcircuitelor între traseele cablajelor placilor echipate cu circuite TTL (cu exceptia celor cu colector în gol). Metoda conform inventiei presupune injectia în nodul de testat a doua pulsuri de curent de durata mica si sensuri opuse, care determina schimbarea valorii starii logice a nodului de testat si în masurarea valorilor acestor pulsuri de curent. Valorile pulsurilor de curent în cazul în care nodul nu este afectat de scurtcircuit si în cazul în care nodul este afectat de scurtcircuit difera, ceea ce permite punerea în evidenta a scurtcircuitului.The invention relates to a method and to an apparatus for detecting and locating short circuits between the circuit board circuits equipped with TTL circuits (with the exception of those with an open collector). The method according to the invention involves the injection into the test node of two short-duration current pulses and opposite senses, which cause the value of the logical state of the test node to be changed and to measure the values of these current pulses. The pulse current values if the node is not short-circuited and if the node is short-circuited is different, which makes it possible to detect the short-circuit.

RO122919A 1984-04-07 1984-04-07 Method and device for detecting and locating shortcircuits between the tracks of ttl circuit cards RO93758B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO122919A RO93758B1 (en) 1984-04-07 1984-04-07 Method and device for detecting and locating shortcircuits between the tracks of ttl circuit cards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO122919A RO93758B1 (en) 1984-04-07 1984-04-07 Method and device for detecting and locating shortcircuits between the tracks of ttl circuit cards

Publications (2)

Publication Number Publication Date
RO93758A2 RO93758A2 (en) 1988-02-29
RO93758B1 true RO93758B1 (en) 1988-03-01

Family

ID=20119244

Family Applications (1)

Application Number Title Priority Date Filing Date
RO122919A RO93758B1 (en) 1984-04-07 1984-04-07 Method and device for detecting and locating shortcircuits between the tracks of ttl circuit cards

Country Status (1)

Country Link
RO (1) RO93758B1 (en)

Also Published As

Publication number Publication date
RO93758A2 (en) 1988-02-29

Similar Documents

Publication Publication Date Title
FR2616228B1 (en) DEVICE FOR MONITORING AND MEASURING THE INSULATION OF AN ELECTRICAL NETWORK
FR2410843A1 (en) ELECTRONIC WATCH
ATE42158T1 (en) COIN RECOGNITION DEVICE.
US4445085A (en) Fault location methods and apparatus using current pulse injection
US4517511A (en) Current probe signal processing circuit employing sample and hold technique to locate circuit faults
RO93758B1 (en) Method and device for detecting and locating shortcircuits between the tracks of ttl circuit cards
CA2024746A1 (en) Circuit and method for pulse width measurement
US3882380A (en) High voltage component testing systems
US3286180A (en) Electrical measuring apparatus for determining response time of transistors and the like
JPH07301646A (en) Printed circuit board inspection equipment
DK0705439T3 (en) Test device and method for an integrated circuit soldered to a circuit board
SU617753A1 (en) Printed circuit board testing arrangement
GB2055478A (en) Fault location methods and apparatus
JPH0480529B2 (en)
SU1492317A1 (en) Electric tester
KR910008986A (en) Tuning Detection Circuit
SU1149169A2 (en) Method of determination of transient recovering voltage
JPH0475469B2 (en)
US3564410A (en) Dynamically calibrated velocity instrumentation technique
GB2072462A (en) Measuring systems for measuring pam elements in telecommunication exchanges
SU1401579A1 (en) Pulse shaper
SU1307404A1 (en) Device for contactless measurement of pulsed current
SU648139A3 (en) Automatic device for measuring electric parameters, e.g. complex resistance, and for sorting components of electric and electronic devices
SU1269090A2 (en) Meter of time intervals
SU1251306A1 (en) Device for detecting tone period of complex signal