3. Fig. 3 shows a limiter. In this circuit, R1-2KQ, Vin=2.5V-Sin(wt) with frequency of 100KHz, and VB1=VB2=VB. (a) Applying constant-voltage model (VD,on=0.8V) to all diodes, please calculate the limiting level VL with VB=0.2V and VB=1.0V respectively. (b) Applying exponential model (Is=1*10-16A) to all diodes, please plot input and output waveforms of Fig. 3 and find the limiting level VL with VB=0.2V and VB=1.0V respectively by LTspice transient analysis. (c) Please fill the Table. III below and compare the limiting level VL in hand calculation and simulation result with VB=0.2V and VB-1.0V respectively. stop time = 25us time to start saving data = 0 maximum timestep = 10ns R1 D1 Vin VB1 T- Fig. 3 Table. III D2 VB2 - Vout VB 0.2 V 1.0 V Constant Model Exponential Voltage Constant Voltage Exponential Hand Method Calculation LTspice Simulation Hand Calculation LTspice Simulation VL
3. Fig. 3 shows a limiter. In this circuit, R1-2KQ, Vin=2.5V-Sin(wt) with frequency of 100KHz, and VB1=VB2=VB. (a) Applying constant-voltage model (VD,on=0.8V) to all diodes, please calculate the limiting level VL with VB=0.2V and VB=1.0V respectively. (b) Applying exponential model (Is=1*10-16A) to all diodes, please plot input and output waveforms of Fig. 3 and find the limiting level VL with VB=0.2V and VB=1.0V respectively by LTspice transient analysis. (c) Please fill the Table. III below and compare the limiting level VL in hand calculation and simulation result with VB=0.2V and VB-1.0V respectively. stop time = 25us time to start saving data = 0 maximum timestep = 10ns R1 D1 Vin VB1 T- Fig. 3 Table. III D2 VB2 - Vout VB 0.2 V 1.0 V Constant Model Exponential Voltage Constant Voltage Exponential Hand Method Calculation LTspice Simulation Hand Calculation LTspice Simulation VL
Chapter59: Motor Startup And Troubleshooting Basics
Section: Chapter Questions
Problem 12SQ: How is a solid-state diode tested? Explain.
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Question
Please do part a only (hand calculation), calculate VL with VB=0.2v and when VB=1V (like the table below) no need for to do LT Spice
Transcribed Image Text:3. Fig. 3 shows a limiter. In this circuit, R1-2KQ, Vin=2.5V-Sin(wt) with frequency of
100KHz, and VB1=VB2=VB.
(a) Applying constant-voltage model (VD,on=0.8V) to all diodes, please calculate the
limiting level VL with VB=0.2V and VB=1.0V respectively.
(b) Applying exponential model (Is=1*10-16A) to all diodes, please plot input and
output waveforms of Fig. 3 and find the limiting level VL with VB=0.2V and
VB=1.0V respectively by LTspice transient analysis.
(c) Please fill the Table. III below and compare the limiting level VL in hand
calculation and simulation result with VB=0.2V and VB-1.0V respectively.
stop time = 25us
time to start saving data = 0
maximum timestep = 10ns
R1
D1
Vin
VB1
T-
Fig. 3
Table. III
D2
VB2
-
Vout
VB
0.2 V
1.0 V
Constant
Model
Exponential
Voltage
Constant
Voltage
Exponential
Hand
Method
Calculation
LTspice
Simulation
Hand
Calculation
LTspice
Simulation
VL
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