| dbo:description
|
- свойство элементов электрических цепей (ru)
- lastnost, da se pri naraščajoči napetosti tok zmanjšuje (sl)
- propietat que un voltatge creixent dóna lloc a un corrent decreixent (ca)
- Osagaia edo zirkuitua zeharkatzen duen korrontea handiagotzean bere muturren arteko tentsio-diferentzia txikiagotzea eragiten duen propietatea. (eu)
- the property that an increasing voltage results in a decreasing current (en)
|
| dbo:thumbnail
| |
| dbo:wikiPageExternalLink
| |
| dbo:wikiPageWikiLink
| |
| dbp:align
| |
| dbp:backgroundColour
| |
| dbp:border
| |
| dbp:borderColour
| |
| dbp:caption
|
- 8 (xsd:integer)
- (en)
- Fig. 3: I–V curve of a power source. In the 2nd quadrant current flows out of the positive terminal, so electric power flows out of the device into the circuit. For example at point P, and , so (en)
- Fig. 4: I–V curve of a negative linear or "active" resistance . It has negative differential resistance and negative static resistance : (en)
- Fig. 2: I–V curve with negative differential resistance . The differential resistance at a point P is the inverse slope of the line tangent to the graph at that point (en)
- AC equivalent circuit (en)
- AC equivalent circuit of reflection amplifier (en)
- CCNR load lines and stability regions (en)
- Current controlled (en)
- Gunn diode oscillator circuit (en)
- Since and , at point P . (en)
- VCNR load lines and stability regions (en)
- Voltage controlled (en)
- AC equivalent circuit of NDR attached to external circuit. The NDR acts as a dependent AC current source of value Δi = Δv/r. Because the current and voltage are 180° out of phase, the instantaneous AC current Δi flows out of the terminal with positive AC voltage Δv. Therefore it adds to the AC source current ΔiS through the load R, increasing the output power. (en)
- Negative impedance converter ' and I–V curve '. It has negative differential resistance in red region and sources power in grey region. (en)
- Fig. 1: I–V curve of linear or "ohmic" resistance, the common type of resistance encountered in electrical circuits. The current is proportional to the voltage, so both the static and differential resistance is positive (en)
- An AC voltage applied to a biased NDR. Since the change in current and voltage have opposite signs , the AC power dissipation ΔvΔi is negative, the device produces AC power rather than consuming it. (en)
|
| dbp:cellpadding
| |
| dbp:direction
|
- horizontal (en)
- vertical (en)
|
| dbp:footer
|
- A positive static resistor ' converts electric power to heat, warming its surroundings. But a negative static resistance cannot function like this in reverse ', converting ambient heat from the environment to electric power, because it would violate the second law of thermodynamics which requires a temperature difference to produce work. Therefore a negative static resistance must have some other source of power. (en)
- Tunnel diode amplifier circuit. Since the total resistance, the sum of the two resistances in series (en)
- is negative, so an increase in input voltage will cause a decrease in current. The circuit operating point is the intersection between the diode curve ' and the resistor load line '. A small increase in input voltage, moving the load line to the right, causes a large decrease in current through the diode and thus a large increase in the voltage across the diode . (en)
- Typical I–V curves of "active" negative resistances: N-type ', and S-type ', generated by feedback amplifiers. These have negative differential resistance ' and produce power '. Applying a large enough voltage or current of either polarity to the port moves the device into its nonlinear region where saturation of the amplifier causes the differential resistance to become positive ', and above the supply voltage rails the static resistance becomes positive and the device consumes power. The negative resistance depends on the loop gain '. (en)
|
| dbp:header
|
- Negative differential resistance (en)
|
| dbp:image
|
- 10 (xsd:integer)
- Active negative resistance - voltage controlled.svg (en)
- Active negative resistance definition.svg (en)
- Current controlled negative resistance.svg (en)
- General negative impedance circuit.svg (en)
- Gunn diode oscillator AC circuit.svg (en)
- Gunn diode oscillator circuit.svg (en)
- Negative differential resistance definition.svg (en)
- Negative impedance converter IV curve.svg (en)
- Negative resistance AC equivalent circuit.svg (en)
- Negative resistance amplification.svg (en)
- Negative resistance stability regions CCNR.svg (en)
- Negative resistance stability regions VCNR.svg (en)
- Negative resistance vs loop gain.svg (en)
- Negative static resistance definition.svg (en)
- Ohmic resistance.svg (en)
- Reflection amplifier.svg (en)
- Thermodynamics and negative resistance.svg (en)
- Thermodynamics and positive resistance.svg (en)
- Tunnel diode amplifier graph.svg (en)
- Tunnel diode amplifier.svg (en)
- Voltage controlled negative resistance.svg (en)
- Active negative resistance - current controlled.svg (en)
|
| dbp:indent
| |
| dbp:width
|
- 102 (xsd:integer)
- 150 (xsd:integer)
- 152 (xsd:integer)
- 170 (xsd:integer)
- 172 (xsd:integer)
- 174 (xsd:integer)
- 180 (xsd:integer)
- 187 (xsd:integer)
- 190 (xsd:integer)
- 200 (xsd:integer)
- 230 (xsd:integer)
- 250 (xsd:integer)
|
| dbp:wikiPageUsesTemplate
| |
| dct:subject
| |
| rdf:type
| |
| rdfs:label
|
- Negative resistance (en)
- مقاومة سالبة (ar)
- Resistència negativa (ca)
- Resistencia negativa (es)
- Hambatan negatif (in)
- Résistance négative (fr)
- Resistenza negativa (it)
- 負性抵抗 (ja)
- Negatieve weerstand (nl)
- 부저항 (ko)
- Від'ємна диференційна провідність (uk)
- Negativ resistans (sv)
- Отрицательное дифференциальное сопротивление (ru)
- 負阻特性 (zh)
|
| owl:sameAs
| |
| prov:wasDerivedFrom
| |
| foaf:depiction
| |
| foaf:isPrimaryTopicOf
| |
| is dbo:wikiPageRedirects
of | |
| is dbo:wikiPageWikiLink
of | |
| is foaf:primaryTopic
of | |