120 views

Write short notes on diode.

diode

Simplest and most fundamental non-linear circuit element. It is a two terminal device which only allows current to flow in one direction.

1 Answer

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 cathode. Diode conducts in one direction. Diode is made from P-type and N-type material. Diode have a PN junction.
Like 0 like

Please log in or register to answer this question.

Related questions

110 views

Description : write short notes on single phase system.

Last Answer : A "phase" in an electrical system is often referred to as the waveform (may be voltage or the current) of the power supply. The waveform in an AC system is typically ... domestic household or commercial supplies and street lighting. Industrial supplies requires three phase electrical supply .

1 answer
254 views

Description : Write short notes on Arduino.

Last Answer : Arduino: Arduino is a open source hardware and software. Arduino is a microcontroller. Since Arduino is open source it have many manufacturer. Arduino project was started in about year 2005 ... many sensors to the Arduino. Arduino board have microprocessor, crystal oscillator, 5V voltage regulator.

1 answer
425 views

Description : Write short notes on:  1) Phosphor characteristics  2) Liquid crystal display

0 answers
1.3k views

Description : write short notes on BH curve.

Last Answer : The B-H curve is the relation between Flux density B in Wb/m2 (on Y Axis) and H in AT/m (on X axis) It is also known as magnetization characteristics. This curve particularly useful ... occurs. At point A' material gets magnetically saturated and the curve becomes flat (parallel to X axis) 

3 answers
145 views

Description : write short notes on Low-pass filter.

Last Answer : low-pass filter (1) filter exhibiting frequency selective characteristic that allows low-frequency components of an input signal to pass from filter input to output unattenuated all high-frequency components are ... the bandwidth of the filter. A filter whose impulse response is a low-pass signal.

2 answers
75 views

Description : write short notes on Linear motor.

Last Answer : Normal electrical motor produces rotatory motion same the linear motor produces linear motion. Linear motors have low efficiency. Linear motor can directly produce straight line motion linear motor do not required gears or crank shaft to produce linear motion.

1 answer
2 views

Description : Why are the notes that I add to my Mac address book being deleted?

Last Answer : answer:If you want to add any extra information, type it in the Note section. You can have Address Book display a picture of the person or any image that you want. To add a picture, just drag any image ... the File menu (or press Command-S). . . . were you doing this last and most important part?

1 answer
2 views

Description : Is there a free program that will let me sync my notes from my iphone to my computer through itunes?

Last Answer : I am pretty sure mine does it automatically. What version of iPhone OS and iTunes do you have?

1 answer
4 views

Description : Can you edit iphone "notes" on your mac and then sync to the phone?

Last Answer : no you can not. There isn’t a way to do that right now. Hopefully in the future cause that would be awesome

1 answer
232 views

Description : Diode VI characteristics

Last Answer : Diode VI characteristics

1 answer
68 views

Description : applications of Schottky diode.

Last 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.

1 answer
75 views

Description :  applications of P-N junction diode

Last 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 

1 answer
169 views

Description : State any two applications of zener diode.

Last 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.

1 answer
94 views

Description : List specification of zener diode

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

1 answer
130 views

Description : Define ripple factor and PIV of diode.

Last 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.

1 answer
292 views

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

Last 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

1 answer
159 views

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

Last Answer : 0.7 v sil and 0.3 v for gr

1 answer
181 views

Description : what is diode ?

Last Answer : Semiconductor device. That allows flow of current in one direction

2 answers
125 views

Description : Write the function of freewheeling diode.

Last 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.

1 answer
10 views

Description : How does the temperature affect the Zener voltage of a Zener diode?

Last Answer : The Zener voltage of a Zener diode is affected by temperature changes. The Zener voltage of a diode is directly proportional to the temperature. This means that as the temperature increases, the ... is given by the Zener voltage temperature coefficient, which is specified in the diode's datasheet.

1 answer
5 views

Description : Explain Zener Diode.

0 answers
239 views

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

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

1 answer
472 views

Description : Draw symbols of zener diode and LED.

Last Answer : Symbol of zener diode : Symbol of LED

1 answer
57 views

Description : Diode

0 answers
118 views

Description : While studying the V-I characteristics of a zener diode, there are two different values of resistors connected in series with it. In case of the forward characteristics, a ~70 ohm resistor is connected ... ~510 ohm resistor. What is the reason behind it ? Is the difference really necessary ?

0 answers
63 views

Description : Avalanche diode

Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

1 answer
2.7k views

Description : 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  

Last 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  

1 answer
174 views

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  

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

1 answer
211 views

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

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

1 answer
145 views

Description : What is a diode clamper circuit?

Last Answer : Tha faction of diode 

1 answer
130 views

Description : What is the use of diode in the circuit?

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

1 answer
82 views

Description : Which side of the diode is positive?

0 answers
246 views

Description : How can you identify a zener diode?

Last Answer : It  conducts  current  in  either  direction.

2 answers
75 views

Description : How do we test a diode?

Last Answer : test

1 answer
2.6k views

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

Last 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.

1 answer
163 views

Description : Justify the statement. Antiparallel diode is connected across MOSFET.

Last 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.

1 answer
142 views

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

Last Answer : t=0 sec.

1 answer
129 views

Description : What would cause a diode to fail?

Last Answer : Supply voltage beyond its limit

1 answer
2.6k views

Description : Can we use a zener diode as a rectifier?

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

1 answer
121 views

Description : What is the use of Schottky diode?

Last Answer : Schottky diode are use in SMPS, Sample and hold circuits and voltage clamping etc.

1 answer
103 views

Description : What is the use of laser diode?

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

1 answer
93 views

Description : What does a Shockley diode do?

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

1 answer
103 views

Description : What is the use of fast recovery diode?

Last 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.

1 answer
152 views

Description : What is the use of Tunnel diode ?

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

1 answer
91 views

Last 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.

1 answer
87 views

Last Answer : Diode conducts when the anode voltage is greater than the cathode voltage.

1 answer
119 views

Last Answer : Diode have two terminals.

4 answers
82 views

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

1 answer
...