tunnel diode sentence in Hindi
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- Applications for tunnel diodes included local oscillators for UHF television tuners, trigger circuits in oscilloscopes, high-speed counter circuits, and very fast-rise time pulse generator circuits.
- Systems for which the small signal model is not passive are sometimes called locally active ( e . g . transistors and tunnel diodes ).
- The backward diode is a special form of tunnel diode in which the tunneling phenomenon is only incipient, and the negative resistance region virtually disappears.
- Based on the tunnel diode, the FHN model has only two independent variables, but exhibits a similar stability behavior to the full Hodgkin Huxley equations.
- Gallium arsenide has been used in semiconductors, in amplifiers, in solar cells ( for example in satellites ) and in tunnel diodes for FM transmitter circuits.
- Because the tunnelling current drops off rapidly, tunnel diodes can be created that have a range of voltages for which current decreases as voltage is increased.
- Tunnel diodes were first manufactured by Sony in 1957 followed by General Electric and other companies from about 1960, and are still made in low volume today.
- From 1959-79 he did theoretical work on tunnel diodes, semiconductor device theory and experiment, injection luminescence, field emission, pattern recognition, later turning his interest to thin film technology.
- More practical examples of the failure of classical mechanics on an engineering scale are conduction by quantum tunneling in tunnel diodes and very narrow transistor gates in integrated circuits.
- There is another type of tunnel diode called a metal insulator metal ( MIM ) diode, but its present application appears to be limited to research environments due to inherent sensitivities.
- The tunnel diode showed great promise as an oscillator and high-frequency threshold ( trigger ) device since it operated at frequencies far greater than the tetrode could, well into the microwave bands.
- They produced their own series of modifications, including a tunnel diode based amplifier and a separate receiver for the Airborne Instruments Laboratories system, producing the AN / FPS-20 / 20A JAPAN, or-J.
- A semiconductor diode's current voltage characteristic can be tailored by selecting the semiconductor materials and the radio-frequency oscillations ( tunnel diodes, Gunn diodes, IMPATT diodes ), and to produce light ( light-emitting diodes ).
- In September 1961, while working at Texas Instruments in Dallas, Texas, James R . Biard and Gary Pittman discovered near-infrared ( 900 nm ) light emission from a tunnel diode they had constructed on a GaAs substrate.
- In September 1961, while working at Texas Instruments Inc . in Dallas, TX, Dr . Biard and Gary E . Pittman discovered infrared light emission from a forward biased tunnel diode constructed on gallium arsenide ( GaAs ) semi-insulating substrate.
- 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.
- Negative resistance in diodes was rediscovered in 1956 in the tunnel diode, and today negative resistance diodes like the Gunn diode and IMPATT diode are used in microwave oscillators and amplifiers and are some of the most widely used sources of microwaves.
- There are special diodes for high speed ( e . g ., the metal-insulator-metal tunnel diodes discussed above ), and there are special diodes for high nonlinearity, but it is quite difficult to find a diode that is outstanding in both respects at once.
- In semiconductor devices, a "'backward diode "'( also called "'back diode "') is a variation on a Zener diode or tunnel diode having a better conduction for small reverse biases ( for example 0.1 to 0.6 V ) than for forward bias voltages.
- This is good because in practice such things are extremely rare, so time isn't wasted, but it's also bad, because if students move from simple passive circuits to varactors and tunnel diodes, its an easy step, it makes sure that passive circuit understanding is bedded in, and the next step to 3-terminal devices such as BJT's and FETS is easier.
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