A unijunction transistor consists of two bases (B1, B2) attached to a resistive bar of silicon, and an emitter in the center. The programmable unijunction transistor, or PUT, is a multi-junction device that, with two external resistors, displays similar characteristics to the UJT. Programmable unijunction transistor) – element półprzewodnikowy, wyposażony w trzy elektrody: anoda, katoda i bramka.. Budowa. A PUT produces an oscillation much like a standard unijunction transistor, except that its emitter voltage is a different ratio of the B2 voltage. Programmable Unijunction Transistor Programmable Unijunction Transistor Triggers Designed to enable the engineer to “program’’ unijunction characteristics such as RBB, , IV, and IP by merely selecting two resistor values. This transistor is a device that, unlike the common bipolar transistor, which has 3 layers, NPN or PNP, has 4 layers. From Wikipedia, the free encyclopedia. Unijunction transistor: Although a unijunction transistor is not a thyristor, this device can trigger larger thyristors with a pulse at base B1. som kun har én pn-overgang.. En unijunction-transistor er en enkel enhed, som grundlæggende set er en lille pind af N-type halvledermateriale i hvilken en P-type materiale er blevet doterede langs noget af pindens længde, og som er med til at definere enhedsparameteren . Application includes thyristor−trigger, oscillator, pulse and timing circuits. Programmable unijunction transistor or PUT is a close relative of the thyristor family. A bipolar junction transistor is a type of transistor that uses both electrons and electron holes as charge carriers. The programmable unijunction transistor or PUT, is a multi-junction device that, with two external resistors, displays similar characteristics to the UJT. Programmable UJT (PUT). Ein programmable unijunction transistor (PUT, englisch, dt. Programmable UJT . 2N6028 was also made in the past.[1]. Graph of PUT characteristic curve, similar to UJT. パラメータ化された単体テスト (parameterized unit testing) → 単体テスト#パラメータ化された単体テストを参照 プログラマブル・ユニジャンクション・トランジスタ (英語版) (programmable unijunction transistor) → ユニジャンクショントランジスタを参照; 石油工科大学 (英語 … Programmable unijunction transistor (PUT) is a three-lead electronic semiconductor device with which is similar in characteristic to unijunction transistor except that it is programmable. It is a close cousin to the thyristor and like the thyristor consists of four p-n layers. Die etablierte Bezeichnung „programmierbarer Unijunctiontransistor“ ist somit irreführend, da es sich nicht um eine Variation des Unijunctiontransistor (UJT) handelt, sondern um eine Variation des Thyristors. It will enhance any encyclopedic page you visit with the magic of the WIKI 2 technology. Unijunction transistor-Wikipedia. Unijunction transistor: Although a unijunction transistor is not a thyristor, this device can trigger larger thyristors with a pulse at base B1. 可程式化單接合面電晶體 (Programmable Unijunction Transistor, 簡稱 PUT) PUT 的內部構造其實是一種具有四層半導體的閘流體,與 UJT 並不一樣,只是具有類似的功能。 PUT 的三個端子是陽極 (Anode, A)、陰極 (Cathode, K)、與閘極 (Gate, G)。 Die Berechnung der elektrischen Größen aus Abb. En programmérbar unijunction-transistor eller PUT, er en nær fætter til tyristoren.Ligesom med tyristoren består den af fire P-N-lag og har en anode og en katode forbundet til det første og sidste lag – og en gate (styreelektrode) forbundet til én af de indre lag.. Tranzystor jednozłączowy (UJT) (ang.unijunction transistor (UJT)), zwany również diodą dwubazową – półprzewodnikowy element przełączający zawierający jedno złącze p-n i 3 elektrody (Emiter, Baza 1, Baza 2). PUT — Programmable Unijunction Transistor (Computing » Hardware) … Abbreviations dictionary. Opis. [2], In construction, the programmable unijunction transistor is similar to the silicon controlled rectifier. The programmable unijunction transistor (PUT) is not a unijunction transistor at all. Programmable unijunction transistors (PUT) are three-terminal thyristors that are triggered into conduction when the voltage at the anode exceeds the voltage at the gate. PUT: programmable unijunction transistor It is a device like the thyristor only the gate is connected to the N type material near the anode. The connections at the ends of the bar are known as bases B1 and B2; the P-type mid-point is the emitter. That voltage divider can be programmed … It is Programmable Unijunction Transistor. When the voltage across the piezoelectric transducer [V.sub.p] passes the maximum and starts to decrease, the anode voltage of the programmable unijunction transistor [PUT.sub.1] is maintained at the peak by diode [D.sub.1] and capacitor [C.sub.1]. In a unijunction transistor, the base region is divided into two parts by the emitter. Like the thyristor it consists of four P-N layers and has an anode and a cathode connected to the first and the last layer, and a gate connected to one of the inner layers. The p-n junction of the device is created on the border of the aluminum rod and the n-type silicon block. Diese Seite wurde zuletzt am 23. Der Unijunctiontransistor (UJT) weist im Gegensatz zu einem programmierbaren Unijunctiontransistor nur einen p-n-Übergang (engl. PUT - Programmable Unijunction Transistor Construction of PUT. In a unijunction transistor, the base region is divided into two parts by the emitter. PUTs sind nicht direkt mit konventionellen UJTs austauschbar, obwohl PUTs ähnliche Funktionen ausführen. What It Does. I use WIKI 2 every day and almost forgot how the original Wikipedia looks like. A programmable unijunction transistor (PUT) is a three-lead electronic semiconductor device which is similar in its characteristics to a unijunction transistor, except that it is programmable.In a unijunction transistor, the base region is divided into two parts by the emitter.The two parts of the base form a voltage divider, which sets the operating point of the UJT. PUT is not a UJT (junction transistor). A unijunction transistor (UJT) is a three-lead electronic semiconductor device with only one junction that acts exclusively as an electrically controlled switch.. 2N4870/4871 and 2N2646/2647's are previous generations (but still This article covers construction, basic operation, and characteristics of Programmable Unijunction Transistor. Aufbau und Unterschied zum Unijunctiontransistor, http://www.circuitstoday.com/programmable-ujt, http://electricly.com/thyristors-part-8-the-unijunction-transistor-ujt/, https://de.wikipedia.org/w/index.php?title=Programmable_unijunction_transistor&oldid=183009730, „Creative Commons Attribution/Share Alike“. 1). El transistor uniunión o transistor unijuntura (UJT del inglés UniJuntion Transistor) es un tipo de transistor constituido por dos zonas semiconductoras y, por lo tanto, una juntura p-n. El nombre del dispositivo surge de esta última característica. . The fact that the V-I characteristics and applications of both are similar prompted the choice of labels. The source code for the WIKI 2 extension is being checked by specialists of the Mozilla Foundation, Google, and Apple. Hence, the name "programmable" is used. That's it. A PUT is a p-n-p-n semiconductor device with a gate contact made to the n base instead of the p base. WikiVisually the entire wiki with photos and video WikiVisually People Places History Art Science the entire wiki with photos and video History top … {\displaystyle \eta } The open circuit maximum amplitude of each of these signals is around 0.56 volt, however this could deviate a bit depending on specific UJTs. This so formed single p-n junction is the reason for th… The programmable unijunction transistor, or PUT, is a close cousin to the thyristor. It is a pulse generator with the trigger or control signal applied at the emitter. Er hat eine Anode und eine Kathode, die an die erste und an die letzte Schicht angeschlossen sind, und ein „Gate“, das mit einer der inneren Schichten verbunden ist. A programmable unijunction transistor (PUT) is a three-lead electronic semiconductor device which is similar in its characteristics to a unijunction transistor, except that it is programmable. Its has a four layered construction just like the thyristors and have three terminals named anode(A), cathode(K) and gate(G) again like the thyristors. Its has a four layered construction just like the thyristors and have three terminals named anode (A), cathode (K) and gate (G) again like the thyristors. English: Vector Graphics Version of Circuit Diagram of a Programmable Unijunction Transistor, and its equivalence to a conventional Unijunction Transistor. In a Unijunction transistor, the base region is divided into two parts by the emitter.The two parts form a Voltage divider which sets the operating point of the UJT. Programmable unijunction transistors (PUT) are three-terminal thyristors that are triggered into conduction when the voltage at the anode exceeds the voltage at the gate. 2 erfolgt mit den unten stehenden Gleichungen: wobei Unijunction Transistor (UJT) • UJT is a breakover-type switching device • Useful in industrial circuits: timers, oscillators, waveform generators, gate control circuits for SCRs and triacs 2. The two parts of the base form a voltage divider, which sets the operating point of the UJT. In this construction, a block of mildly doped n-type silicon material (having increased resistance characteristic) provides a pair of base contacts connected to two ends of one surface, and an aluminum rod alloyed on the opposite rear surface. ترانزستور أحادي الوصلة قابل للبرمجة (بالإنجليزية: (PUT) Programmable unijunction transistor) هو ترانزستور من أشباه الموصلات، يشبه في خصائصه الترانزستور أحادي الوصلة إلا أنه قابل للبرمجة.. تكوينه The UJT is not used as a linear amplifier. Unijunction transistor-Wikipedia. Programmable Unijunction Transistor (PUT ou PUJT) : thyristor dont la gâchette est connectée à la couche dopée N près de l'anode, utilisé pour remplacer le transistor unijonction. The junction gate field effect transistor (JFET) is one of the simplest types of field-effect transistor.JFETs are three-terminal semiconductor devices that can be used as electronically-controlled switches or resistors, or to build amplifiers.. The original unijunction transistor types are now considered obsolete, but a later multi-layer device, the programmable unijunction transistor, is still widely available. The term PUT is being used here to describe combining two discrete transistors to emulate a unijunction transistor. programmierbarer Unijunctiontransistor) ist ein Halbleiter-Bauelement und im Aufbau ähnlich einem Thyristor. See Figure (a). They are not directly interchangeable with conventional UJTs but perform a similar function. Programmable unijunction transistor-Wikipedia Measuring elements of static relays have been successfully and economically built up from diodes, zener diodes, avalanche diodes, unijunction transistors, p-n-p and n-p-n bipolar transistors, field effect transistors or their combinations. Deutsch: Verktor-Grphik Version des Schaltplans eines "Programmable Unijunction Transistor"s und seiner Äquivalenz zum konventionellen Unijunction Transistor. B. Timer NE555), werden PUTs nur noch selten eingesetzt. See Figure below(a). Programowalny tranzystor jednozłączowy PUT (ang. It is a close cousin to the thyristor and like the thyristor consists of four p-n layers. Wie ein Thyristor besteht der PUT aus vier alternierenden p-, n-dotieren Schichten und enthält damit drei p-n-Übergänge (Abb. Looking for abbreviations of PUT? The programmable unijunction transistor (PUT) oscillator is discussed here: Discrete Sawtooth Oscillators Alan Yates PUT Complimentary Feedback Pair 4QD/Richard Torrens See also PUT part 2 and PhaseNoise. It is also a four-layer P-N-P-N solid-state device with a gate connected directly to the sandwiched N-type layer. ... Wikipedia Encyclopedia. It will enhance any encyclopedic page you visit with the magic of the WIKI 2 technology. With the emitter disconnected, the total resistance RBBO, a datasheet item, i… The 2N6114 is one version of the CUJT. 3). PUT - Programmable Unijunction Transistor Construction of PUT. The two parts of the base form a voltage divider, which sets the operating point of the UJT. PUT – Programmable Unijunction Transistor Characteristics of PUT. unijunction, dt. Unijunction transistor — Unijunction transistors Circuit symbol A unijun … Wikipedia Unijunction-Transistor — Schaltsymbol Der Unijunction Transistor (Abkürzung: UJT), oft auch Doppelbasisdiode genannt, ist in der Elektronik ein Art Zwitter aus Diode und Transistor, ähnelt allerdings in mancher Hinsicht einem Thyristor. In contrast, a unipolar transistor, such as a field-effect transistor, use only one kind of charge carrier. The programmable unijunction transistor or PUT, is a multi-junction device that, with two external resistors, displays similar characteristics to the UJT. Construction . November 2018 um 16:47 Uhr bearbeitet. "Programmable Unijunction Transistor Flasher", "PUT - Programmable Unijunction Transistor - Working, Construction, Biasing - D&E notes". It is a close cousin to the thyristor and like the thyristor consists of four p-n layers. A unijunction transistor is composed of a bar of N-type silicon having a P-type connection in the middle. Schlagen Sie auch in anderen Wörterbüchern nach: Unijunction transistor — Unijunction transistors Circuit symbol A unijun … Wikipedia. PUT - Programmable Unijunction Transistor. Programmable unijunction transistor (PUT) is a three-lead electronic semiconductor device with which is similar in characteristic to unijunction transistor except that it is programmable. A unijunction transistor is composed of a bar of N-type silicon having a P-type connection in the middle. A bipolar transistor allows a small current injected at one of its terminals to control a much larger current flowing between two other terminals, making the device capable of amplification or switching. English: Vector Graphics Version of Circuit Diagram of a Programmable Unijunction Transistor, and its equivalence to a conventional Unijunction Transistor Deutsch: Verktor-Grphik Version des Schaltplans eines "Programmable Unijunction Transistor"s und seiner Äquivalenz zum konventionellen Unijunction Transistor. Programmable unijunction transistor-Wikipedia Measuring elements of static relays have been successfully and economically built up from diodes, zener diodes, avalanche diodes, unijunction transistors, p-n-p and n-p-n bipolar transistors, field effect transistors or their combinations. The original unijunction transistor types are now considered obsolete, but a later multi-layer device, the programmable unijunction transistor, is still widely available. In construction, Programmable unijunction transistor is similar to Silicon controlled rectifier. In a unijunction transistor, the base region is divided into two parts by the emitter. The E-B1 junction has negative resistance properties; it can switch between high and low resistance. η Programmable UJT (PUT) Construction The PUT is a three-terminal four-layer device like the SCR , the difference being that the gate terminal is connected to the n- type layer near the anode. ein Systemparameter ist. 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