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What is the use of Schottky diode?
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Schottky diode are use in SMPS, Sample and hold circuits and voltage clamping etc.

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Description :

applications of Schottky diode.

Answer :

1) To rectify very high frequency signals. 2) As a switching device in digital computers. 3) In clipping & and clamping circuits. 4) In low power schottky TTL circuits. 5) In mixing and detecting circuits used in communication systems. 6) In low voltage power supply circuits.

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Description :

What is the use of laser diode?

Answer :

laser diodes are use in telecommunication, rangefinders, barcode readers etc.

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What is the use of fast recovery diode?

Answer :

Fast recovery diode are used in high frequency rectification. Fast recovery diode also used for freewheeling. Fast recovery diode also used for DC to DC converter.

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Description :

What is the use of diode in the circuit?

Answer :

Diode is a device which allows the flow of current in one direction and blocks the current in opposite direction.

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Description :

Answer :

It is semiconductor diode with a low forward voltage drop and very high switching action

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Description :

What is the use of Tunnel diode ?

Answer :

Tunnel diode is use in frequency converters and detectors, ultra high speed switching, amplifiers, etc.

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Description :

Can we use a zener diode as a rectifier?

Answer :

Yes we can use zener diode as rectifier but it have limitations better to use normal diode. Zener diode have some different applications.

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Description :

What would cause a diode to fail?

Answer :

Supply voltage beyond its limit

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Description :

What does a Shockley diode do?

Answer :

It is diode have low forward voltage drop and very high switching action

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Description :

Write the function of freewheeling diode.

Answer :

Function of Freewheeling Diode (FWD): a) Freewheeling diode is used across inductive loads such as coils, dc motor armature etc. to prevent voltage spikes across these loads when the switching ... current is shifted from switching device, it is turned off easily and regain its blocking ability.

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Description :

Explain the formation of parasitic BJT and parasitic diode in Power MOSFET. Can parasitic diode be used in same power electronics applications?

Answer :

Parasitic Diode: The parasitic diode is in between drain and source. The MOSFET structure itself contains parasitic diode or body drain diode. This parasitic diode allows the reverse flow of current when the ... of MOSFET as a BJT collector. Parasitic BJT operates in the cut-off region.

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Description :

Justify the statement. Antiparallel diode is connected across MOSFET.

Answer :

In MOSFET current is flow from drain to source but when the load is inductive the current may flow in opposite direction. To avoid the opposite flow of current and to protect MOSFET the antiparallel diode is connected across MOSFET.

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Description :

Answer :

PN junction of zener diode is heavily doped than ordinary diode. For the occurrence of Zener effect the zener diode is heavily doped. If the zener diode is not heavily doped then Zener effect ... breakdown voltage is sharp. If the diode is lightly doped the diode will have higher breakdown voltage.

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Description :

Answer :

Yes dynamic impedance of zener diode vary.

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Description :

Answer :

Yes, Zener diode is a voltage regulator. Zener diode maintain constant reverse Biased Voltage. If the current is varying then also zener diode maintain constant voltage.

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Description :

Answer :

Yes it can be, and it will act like a normal PN junction diode. The characteristic of ZENER diode is exactly same as PN junction diode in forward Bias.

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What is the use of a thyristor in a circuit?

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What is the use of SCR?

Answer :

SCR are use in lamp dimming, power regulators, motor control, rectifications of high power AC, control of welding machines and also use as switch these are some uses of silicon controlled rectifier.

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Description :

Which device use to convert DC to AC?

Answer :

Rectifier

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Description :

What is a diode clamper circuit?

Answer :

Tha faction of diode 

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Description :

what is the minimum voltage required to turn on a diode ?

Answer :

0.7 v sil and 0.3 v for gr

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Description :

what is diode ?

Answer :

Semiconductor device. That allows flow of current in one direction

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Description :

Answer :

In Reverse bias of diode when the cathode is connected to positive and anode is connected to negative very small current flows this very small current is known as leakage current of diode.

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Description :

Suggest the diode material suitable to rectify 0.5V AC signal.

Answer :

The diode material suitable to rectify 0.5V AC signal is silicon

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Description :

Draw symbols of zener diode and LED.

Answer :

Symbol of zener diode : Symbol of LED

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Description :

Diode

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Diode VI characteristics

Answer :

Diode VI characteristics

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Description :

 applications of P-N junction diode

Answer :

1.It is used as rectifier in DC power supply 2.It is used as free wheel diode across relay or inductive load 3.It is used as switch in logic circuits used in computers 4.It is used as detector in demodulation circuits of communication receiver 

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Description :

Avalanche diode

Answer :

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Description :

State any two applications of zener diode.

Answer :

Applications of Zener Diode: i) As a voltage regulator. ii) As a fixed reference voltage provider in transistor biasing circuits. iii) As peak clippers or limiters in wave shaping circuits.

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Description :

List specification of zener diode

Answer :

1. Zener Voltage 2. Maximum Zener current 3. Power dissipation 4. Operating temperature 5. Dynamic Resistance 

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Define ripple factor and PIV of diode.

Answer :

1. Ripple factor: It is define as ratio of R.M.S. value of AC component to the DC component in the output.  2. PIV : It is maximum reverse voltage that diode can withstand without destroying junction.

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Explain the operating principle of LASER and list applications of LASER diode.

Answer :

A basic construction of Laser diode is as shown . A PN junction is formed by two layers of doped gallium arsenide. There is highly reflective surface at one end of PN junction and ... 6. laser scanning and light beam illumination. 7. Military applications 8. Medical surgery 9.Diamond cutting

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A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω  

Answer :

A zener voltage regulator has load requirements of 12 V and 2 A. The zener diode minimum current requirement is 0.2 A. The minimum voltage at input is 24 V. What is the required value of series resistance with source? A) 5.45 Ω B) 6 Ω C) 7.2 Ω D) 6.38 Ω  

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Description :

A diode in which the change in reverse bias voltage varies the capacitance is called as A) Varactor diode B) Switching diode C) Tunnel diode D) Zener-diode  

Answer :

A diode in which the change in reverse bias voltage varies the capacitance is called as Varactor diode

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Description :

Which diode exhibits negative resistance characteristic? (A) LED (B) Zener (C) Tunnel diode (D) PN diode

Answer :

Which diode exhibits negative resistance characteristic? (A) LED (B) Zener (C) Tunnel diode (D) PN diode

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Description :

Which side of the diode is positive?

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Description :

How can you identify a zener diode?

Answer :

It  conducts  current  in  either  direction.

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Description :

How do we test a diode?

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Description :

Write short notes on diode.

Answer :

Diode is made from semiconductor material like silicon or germanium. Diode may use as rectifier which convert AC to DC. It is a electronic component. It is two terminal device, one is anode and second is ... in one direction. Diode is made from P-type and N-type material. Diode have a PN junction.

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Description :

How much time a diode takes to switch ON in forward bias condition.

Answer :

t=0 sec.

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Description :

Answer :

Diode conducts when the anode voltage is greater than the cathode voltage.

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Description :

Answer :

Diode have two terminals.

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Description :

What is the use of transformer?

Answer :

The use of transformer  is to do lower or raise  the voltage or currents in an electrical  circuit.  That's quite so simple. 

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What is the use of a Mosfet?

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What is the use of Arduino Uno?

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What is the use of PWM in Arduino?

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