Unit 2-Applications of diode -...
-
Upload
truongxuyen -
Category
Documents
-
view
233 -
download
0
Transcript of Unit 2-Applications of diode -...
![Page 1: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/1.jpg)
![Page 2: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/2.jpg)
Unit 2-Applications of diode
![Page 3: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/3.jpg)
Contents Ø DesignofRec,fierCircuits.
Ø HalfWaveRec,fica,on
Ø FullWaveRec,fier
Ø FilterØ RippleVoltageandDiodeCurrent
Ø Clippers.Ø Clampers.
Ø VoltageDoublerCircuit.Ø ZenerDiodeCircuitsØ ZenerDiodeasVoltageRegulatorØ PhotodiodeCircuitØ LEDCircuit
![Page 4: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/4.jpg)
Clippers Ø Clippers, limiters or clipping circuits make use
of non-linear properties of diode, that is the diode conduct the current in forward direction and does not conduct in reverse direction.
Basic operating Principle: Ø These circuits are primarily are wave shaping
circuits. Ø They clip or remove certain portion of ac
voltage applied to the input of circuit.
![Page 5: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/5.jpg)
Applications of Clippers: Ø They need to clip the voltage above or below a
certain pre-determined voltage level arises in the television, digital computers, radar, and many other electronic circuits.
![Page 6: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/6.jpg)
Types of Clippers
Clippers
Series Clippers Parallel Clippers
![Page 7: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/7.jpg)
Further Classification:
Parallel Clippers
Unbiased Parallel Clippers
Biased Parallel Clippers
![Page 8: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/8.jpg)
Further Classification (Cont..) :
Series Clippers
Unbiased Series Clippers
Biased Series Clippers
![Page 9: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/9.jpg)
8
Series Clipper (limiter) circuits. (practical diode)
Negative series clipper.
D1
RL
Vin Vin-0.7V
![Page 10: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/10.jpg)
9
Series Clipper circuits. (Practical diode)
Positive series clipper.
D1
RL-Vin -Vin+0.7V
![Page 11: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/11.jpg)
SeriesClipperCircuitSummary
![Page 12: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/12.jpg)
11
Parallel Negative Clipper circuits.
(ideal diode)
Negative shunt clipper.
![Page 13: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/13.jpg)
Parallel Negative Clipper circuits. (Practical diode)
![Page 14: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/14.jpg)
13
Parallel Positive Clipper circuits.
Positive shunt clipper. Ideal Diode Practical Diode
![Page 15: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/15.jpg)
Ø So, output voltage can be found by using VDR. Ø Vo = Vin RL/(Rin+RL) Where Vin= - Vm. Ø Since, RL>>Rin. Ø So, Rin can be neglected in comparison to RL.
![Page 16: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/16.jpg)
Biased parallel clipper
![Page 17: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/17.jpg)
Parallel Clippers
Biased Parallel Clipper: Ø In parallel biased clipper, there is a battery
connected in series with diode
![Page 18: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/18.jpg)
Parallel Positive Clippers
Analysis of biased parallel clipper: Ideal Diode:
![Page 19: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/19.jpg)
Parallel Clippers
Analysis of biased parallel clipper: Ideal Diode:
During positive half cycle
![Page 20: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/20.jpg)
Parallel Clippers
Analysis of biased parallel clipper: Ideal Diode:
Output waveform during negative half cycle
![Page 21: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/21.jpg)
Parallel Clippers
Analysis of biased parallel clipper: Ideal Diode:
During the negative half cycle
![Page 22: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/22.jpg)
Parallel Clippers
Analysis of biased parallel clipper: Ideal Diode: Output waveform during negative half cycle
![Page 23: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/23.jpg)
22
Biased Positive Shunt Clipper circuits.
Biased Negative Shunt Clipper circuits.
![Page 24: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/24.jpg)
Design Problems
![Page 25: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/25.jpg)
Parallel Clippers
Draw the output waveform for the given clipper circuit (ideal Diode)
![Page 26: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/26.jpg)
When , Vin > VBB (i.e. Vin>2.5V) , Diode D conducts and Vo = 2.5V When , Vin <VBB , i.e.Vin < 2.5, Diode D is OFF and Vo = Vin
![Page 27: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/27.jpg)
Nonidealdiode
Draw the output waveform for the given clipper circuit (non-ideal Diode)
![Page 28: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/28.jpg)
Parallel Clippers
Draw the output waveform for the circuit shown. (ideal diode)
![Page 29: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/29.jpg)
Parallel ClippersWhen , Vin < VBB , i.e. Vin<-2.5 , Diode D is OFF and Vo=Vin When, Vin ≥ VBB, i.e. Vin ≥ -2.5, Diode D is ON and Vo=VBB= -2.5V
![Page 30: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/30.jpg)
Non-Idealdiode
![Page 31: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/31.jpg)
Parallel Clippers Case3:idealdiode
When , Vin >VBB, i.e. Vin> 2.5, D is OFF , Vo =Vin
When, Vin ≤VBB,i.e. Vin ≤ 2.5,D is ON ,Vo=VBB=2.5V
![Page 32: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/32.jpg)
Nonidealdiode
![Page 33: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/33.jpg)
Parallel Clippers
Case 4:
![Page 34: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/34.jpg)
Parallel Clippers
Vo=Vin …..for Vin >VBB
i.e. Vin> -2.5 Vo=VBB= -2.5V …..for Vin ≤VBB
i.e. Vin ≤ -2.5
![Page 35: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/35.jpg)
Nonideal
![Page 36: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/36.jpg)
35
TwoSidedClipper
• Determinetheoutputvoltagewaveform(Assumenon-idealdiodes)
![Page 37: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/37.jpg)
36
Solu,on
• WhenthevoltageatpointAreaches+7.7V,diodeD1conductsandlimitsthewaveformto+7.7VDiodeD2doesnotconductun,lthevoltagereaches-5.7VTherefore,posi,vevoltagesabove+7.7Vandnega,vevoltagesbelow-5.7Vareclippedoff.
![Page 38: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/38.jpg)
ParallelClipperCircuitSummary
![Page 39: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/39.jpg)
Clamper
Adiodeinconjunc,onwithacapacitorcanbeusedto“Clamp”anACsignaltoaspecifiedDClevel.
ShiYsthesignalinthedirec,onofthediodearrow.
![Page 40: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/40.jpg)
WorkingofClamper
![Page 41: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/41.jpg)
Diode:-ClamperPosi,veClamper
During the negative half cycle of the input signal, the diode conducts and acts like a short circuit. The output voltage Vo ⇒ 0 volts . The capacitor is charged to the peak value of input voltage Vm. and it behaves like a battery. During the positive half of the input signal, the diode does not conduct and acts as an open circuit. Hence the output voltage Vo ⇒Vm+ Vm This gives a positively clamped voltage.
Vo ⇒Vm+ Vm = 2 Vm
![Page 42: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/42.jpg)
Diode:-ClamperPosi,veClamper
![Page 43: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/43.jpg)
Diode:-ClamperNega,veClamper
During the positive half cycle the diode conducts and acts like a short circuit. The capacitor charges to peak value of input voltage Vm. During this interval the output Vo which is taken across the short circuit will be zero During the negative half cycle, the diode is open. The output voltage can be found by applying KVL.
![Page 44: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/44.jpg)
Diode:-Clamper
Nega,veClamper
![Page 45: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/45.jpg)
Diode:-BiasedClamperBiasedClamper
When Vin < -10V
D is ON Vo = -10V C charges
Vc is obtained by applying KVL
-20-Vc+10 = 0 , Vc = -10V
![Page 46: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/46.jpg)
Diode:-ClamperBiasedClamper
When Vin > -10V
D is OFF Vo = Vi +10V
Vo is obtained by applying KVL
Vi+10 -Vo= 0 , V0 = Vi+10
![Page 47: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/47.jpg)
ProblemWhen Vin = +6V D is ON , Vo = +3V
C charges to = +3 V +6 – Vc -3 =0
When Vin = -6V
D is OFF , Vo = -9V -6-3-Vo =0
![Page 48: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/48.jpg)
Problem When Vin = -20V D is ON , Vo = +5V
C charges to = -25 V -20-Vc-5=0
When Vin = +10V
D is OFF , Vo =35V 10+25-Vo=0
![Page 49: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/49.jpg)
SummaryofVoltageClamper
![Page 50: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/50.jpg)
VoltageMul,plierCircuits
Voltage multiplier circuits use a combination of diodes and capacitors to step up the output voltage of rectifier circuits.
• Voltage Doubler • Voltage Tripler • Voltage Quadrupler
![Page 51: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/51.jpg)
VoltageDoubler
This half-wave voltage doubler�s output can be calculated as
Vout = VC2 = 2Vm
Vm = peak secondary voltage of the transformer.
HalfWaveVoltageDoubler
![Page 52: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/52.jpg)
Opera'onofaVoltageDoublerCircuit
The 1st capacitor charges up to Vm during the positive half of the cycle, then the 2nd capacitor charges up to Vm in the same polarity as the 1st capacitor, finally the output is the sum of the voltages across both capacitors:
Vout = 2Vm
![Page 53: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/53.jpg)
52
Voltage multipliers.
Half-wave voltage doublers to get output of opposite polarity.
VS
C1
D1
D2
C2 RL
![Page 54: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/54.jpg)
53
Working of Voltage multipliers
VS(pk)C1 D1
D2
C2 RLOn
Off
IS IL
VS(pk)
VC2
VS(pk)C1 D1
D2
C2 RLIS
Off
OnVS(pk)
VC2
VC2=2VS(pk)
![Page 55: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/55.jpg)
Waveformofvoltagedoubler
![Page 56: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/56.jpg)
55
Full-wave voltage doubler.
![Page 57: Unit 2-Applications of diode - Strawberrystrawberrydevelopers.weebly.com/uploads/5/2/3/5/52354675/unit_2... · Parallel Clippers Biased Parallel Clipper: ØIn parallel biased clipper,](https://reader034.fdocuments.net/reader034/viewer/2022050902/5ad82d737f8b9a865b8d128e/html5/thumbnails/57.jpg)
Waveform