RO82591B1 - Indicator for direct current ground connection - Google Patents

Indicator for direct current ground connection

Info

Publication number
RO82591B1
RO82591B1 RO105673A RO10567381A RO82591B1 RO 82591 B1 RO82591 B1 RO 82591B1 RO 105673 A RO105673 A RO 105673A RO 10567381 A RO10567381 A RO 10567381A RO 82591 B1 RO82591 B1 RO 82591B1
Authority
RO
Romania
Prior art keywords
direct current
indicator
ground connection
current ground
npn
Prior art date
Application number
RO105673A
Other languages
Romanian (ro)
Other versions
RO82591A2 (en
Inventor
Ioan Puie
Original Assignee
îNTREPRINDEREA DE VAGOANE
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 DE VAGOANE filed Critical îNTREPRINDEREA DE VAGOANE
Priority to RO81105673A priority Critical patent/RO82591A2/en
Publication of RO82591B1 publication Critical patent/RO82591B1/en
Publication of RO82591A2 publication Critical patent/RO82591A2/en

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Abstract

Inventia se refera la un indicator de punere la masa în curent continuu format dintr-un divizor rezistiv prin care sunt polarizate bazele unui tranzistor npn, respectiv pnp, în colectoarele carora sunt conectate bazele altor doua tranzistoare npn, respectiv pnp, si prin câte un rezistor, lampi de semnalizare ale caror circuite se închid cu colectorul tranzistoarelor secunde. Emitoarele perechilor de tranzistoare de acelasi tip sunt conectate împreuna prin câte o dioda. Polaritatea fie pozitiva, fie negativa a tensiunii este pusa la masa prin divizorul rezistiv si printr-un alt rezistor determinând conductia respectiv blocarea tranzistoarelor respective si semnalizarea uneia din lampi.The invention relates to a DC direct current indicator consisting of a resistive divider which polarizes the bases of an npn or pnp transistor in the collectors of which are connected the bases of two npn and pnp transistors respectively and by one resistor , signaling lamps whose circuits close with the second transistor collector. Transmitter pairs of the same type are connected together by one diode. The positive or negative polarity of the voltage is placed at the table through the resistive divider and by another resistor, causing the respective blocking of the respective transistors and the signaling of one of the lamps.

RO81105673A 1981-10-30 1981-10-30 DIRECT CURRENT MOUNTING INDICATOR RO82591A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO81105673A RO82591A2 (en) 1981-10-30 1981-10-30 DIRECT CURRENT MOUNTING INDICATOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO81105673A RO82591A2 (en) 1981-10-30 1981-10-30 DIRECT CURRENT MOUNTING INDICATOR

Publications (2)

Publication Number Publication Date
RO82591B1 true RO82591B1 (en) 1983-09-30
RO82591A2 RO82591A2 (en) 1983-10-15

Family

ID=20110600

Family Applications (1)

Application Number Title Priority Date Filing Date
RO81105673A RO82591A2 (en) 1981-10-30 1981-10-30 DIRECT CURRENT MOUNTING INDICATOR

Country Status (1)

Country Link
RO (1) RO82591A2 (en)

Also Published As

Publication number Publication date
RO82591A2 (en) 1983-10-15

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