A lambda diode is an electronic circuit that combines a complementary pair of junction gated field effect transistors into a two-terminal device that exhibits an area of differential negative resistance much like a tunnel diode. The term refers to the shape of the V–I curve of the device, which resembles the Greek letter λ (lambda).
| Attributes | Values |
|---|
| rdf:type
| |
| rdfs:label
| - Lambda-Diode (de)
- Lambda diode (en)
|
| rdfs:comment
| - Eine Lambda-Diode ist eine elementare elektrische Schaltung mit zwei Anschlüssen, welche aus zwei Sperrschicht-Feldeffekttransistoren (JFETs) besteht und ähnlich wie eine Tunneldiode in ihrer Kennlinie einen differentiellen negativen Widerstand aufweist. In nebenstehenden Kennlinie, die den Strom ID durch die Lambda-Diode als Funktion der anliegenden Spannung UD darstellt, ist dies im rot markierten Kennlinienabschnitt der Fall. Die Bezeichnung leitet sich von der Form der I-U-Kennlinie ab, welche grob dem griechischen Buchstaben λ (Lambda) ähnelt. (de)
- A lambda diode is an electronic circuit that combines a complementary pair of junction gated field effect transistors into a two-terminal device that exhibits an area of differential negative resistance much like a tunnel diode. The term refers to the shape of the V–I curve of the device, which resembles the Greek letter λ (lambda). (en)
|
| foaf:depiction
| |
| dcterms:subject
| |
| Wikipage page ID
| |
| Wikipage revision ID
| |
| Link from a Wikipage to another Wikipage
| |
| sameAs
| |
| dbp:wikiPageUsesTemplate
| |
| thumbnail
| |
| has abstract
| - Eine Lambda-Diode ist eine elementare elektrische Schaltung mit zwei Anschlüssen, welche aus zwei Sperrschicht-Feldeffekttransistoren (JFETs) besteht und ähnlich wie eine Tunneldiode in ihrer Kennlinie einen differentiellen negativen Widerstand aufweist. In nebenstehenden Kennlinie, die den Strom ID durch die Lambda-Diode als Funktion der anliegenden Spannung UD darstellt, ist dies im rot markierten Kennlinienabschnitt der Fall. Die Bezeichnung leitet sich von der Form der I-U-Kennlinie ab, welche grob dem griechischen Buchstaben λ (Lambda) ähnelt. (de)
- A lambda diode is an electronic circuit that combines a complementary pair of junction gated field effect transistors into a two-terminal device that exhibits an area of differential negative resistance much like a tunnel diode. The term refers to the shape of the V–I curve of the device, which resembles the Greek letter λ (lambda). Lambda diodes work at higher voltage than tunnel diodes. Whereas a typical tunnel diode may exhibit negative differential resistance approximately between 70 mV and 350 mV, this region occurs approximately between 1.5 V and 6 V in a lambda diode due to the higher pinch-off voltages of typical JFET devices. A lambda diode therefore cannot replace a tunnel diode directly. Moreover, in a tunnel diode the current reaches a minimum of about 20% of the peak current before rising again towards higher voltages. The lambda diode current approaches zero as voltage increases, before rising quickly again at a voltage high enough to cause gate–source Zener breakdown in the FETs. It is also possible to construct a device similar to a lambda diode by combining an n-channel JFET with a PNP bipolar transistor.A suggested modulatable variant but is a bit more difficult to build uses a PNP based optocoupler and can be tweaked by using its IR diode. This has the advantage that its properties can be fine tuned with a simple bias driver and used for high sensitivity radio applications, sometimes a modified open can PNP transistor with IR LED can be used instead. (en)
|
| gold:hypernym
| |
| prov:wasDerivedFrom
| |
| page length (characters) of wiki page
| |
| foaf:isPrimaryTopicOf
| |
| is Link from a Wikipage to another Wikipage
of | |
| is foaf:primaryTopic
of | |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)
