wat's d application of trappat diode
switch is similar to diode action
A Tunneldiode, usually made of GaAS. In a part of its curve it has a negative resistance. This means that when you increase the voltage in that region, the current will drop.
by using a suitable diagram, explain the one of the operation in microwave energy sources except Guinn Diode.
In shunt clippers, when the diode is in off condition, transmission of input signal must take place to output. But in the case of high frequency input signals, diode capacitance affects the operation of circuit adversely and the signal gets attenuated (which means that, it passes through diode capacitance to ground).
the pullup or pull down resistance in the diode logic gate makes it a high output resistance device.If u try to drive another diode logic gate with it the output voltage of the first gate will be affected by the resistance in the second gate.A diode logic gate should always drive a high input resistance input.
A trapatt diode, or TRAPATT diode, operates by generating microwave oscillations through the avalanche breakdown mechanism in a p-n junction. When a reverse bias voltage is applied, it creates a high electric field that causes impact ionization, leading to a rapid increase in carrier multiplication. This process results in the generation of high-frequency oscillations due to the buildup of charge carriers, which can be utilized in microwave oscillators and amplifiers. The unique characteristic of trapatt diodes is their ability to produce stable microwave signals at high power levels.
Advantages of Trapatt:• higher efficiency than impatt• very low power dissipationAdvantages of Impatt:• This microwave diode has high power capability compare to other diodes.• Output is reliable compare to other diodes.
Backward diode
switch is similar to diode action
what is the basic operation of LED
A Tunneldiode, usually made of GaAS. In a part of its curve it has a negative resistance. This means that when you increase the voltage in that region, the current will drop.
A: A zener is a diode that when connected in the reverse mode current direction it will breakdown to a predetermined voltage any further increasing voltage the breakdown will remain practically the same.
efreqw
The capacitance of a varicap diode varies as the reverse voltage to the diode changes. As you increase the reverse voltage, the capacitance decreases. And vice versa.
by using a suitable diagram, explain the one of the operation in microwave energy sources except Guinn Diode.
Reverse-biased ---from the book of Malvino
A: The principle is that is a semiconductor meaning will conduct one way only. A switching diode however will have the least of capacitance across its junction so when it disconnect is faster