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Problem 2: Pulse width modulation (PWM) is a method of reducing the average power delivered by...
Electronic Power Converter - PWM duty cycles and sketch 2 (15 pts) You are asked to...
Electronic Power Converter - PWM duty cycles and sketch 2 (15 pts) You are asked to turm on & off the switches s., S.. S. S, 5. 8, so the 3-phase inverter would produce PWM voltage that is 158 115 IV]. S S, S equivalent to Vnc a The PWM frequency b IM is 1 kHz and the DC power supply to the inverter is V-300 [V) Sketch the waveforms of the variables and complete the missing info for the...
Q3 A MOSFET is used as a low-side switch to control a 15 2 resistive load...
Q3 A MOSFET is used as a low-side switch to control a 15 2 resistive load from a 24 V DC supply. The MOSFET has Rps,on = 0.2 and fon foff= 40 ns. [2] (a) Draw a suitable circuit. (b) Calculate both the drain current ip and drain-source voltage vps when the MOSFET is off and when it is on. [6] (c) Calculate the power dissipated in the load and in the MOSFET while they switched on. are [4] (d)...
Please answer all the parts of the question clearly and fully! Thank you! Numerical Answers: (b)...
Please answer all the parts of the question clearly and fully!
Thank you!
Numerical Answers:
(b) (0.0 A, 24 V), (approximately 1.6 A, 0.32 V)
(c) 38.4 W, 0.5 W
(e) 0.26 W + 1.5 mW
SECTION B: Attempt any Two) questions 150 marks total! Q3 A MOSFET is used as a low-side switch to control a 15 2 resistive load from a 24 supply. The MOSFET has RDSan VDC 0.2 ? and ton-tof-40 ns. (a) Draw a suitable circuit....
Problem 31: (34 points) 1. (10 points) A pulse width modulated (PWM) signal fPwM(t) in Figure...
Problem 31: (34 points) 1. (10 points) A pulse width modulated (PWM) signal fPwM(t) in Figure 2. The symbol D represents a duty cycle, a number between zero and one. Determine the compact trigonometric Fourier series coefficients (Co Cn, θ.) of the signal f(t) 2. (10 points) One use of PWM is to generate variable DC voltages. While the PWM signal is not DC, you should be able to see from your results in part 1 that it has a...
Problem 31: (34 points) 1. (10 points) A pulse width modulated (PWM) signal fPwM(t) in Figure...
Problem 31: (34 points) 1. (10 points) A pulse width modulated (PWM) signal fPwM(t) in Figure 2. The symbol D represents a duty cycle, a number between zero and one. Determine the compact trigonometric Fourier series coefficients (Co C,11 %) of the signal f(t). 2. (10 points) One use of PWM is to generate variable DC voltages. While the PWM signal is not DC, you should be able to see from your results in part 1 that it hss a...
In this part of the term paper, design a single-phase switch-mode DC power supply with a forward ...
In this part of the term paper, design a single-phase switch-mode DC power supply with a forward converter. Provide answers to the questions below Please combine the single-phase full-wave rectifier from part two of your term paper with a forward converter to produce a switch-mode DC power supply, as shown below. The output of the bridge rectifier serves as input to the forward converter L1 Np: N BH621BH62 D, V1 Load C1 100p 45 Vrms D3 BH62 18H62 D4 Control...
(1) A DC/DC converter supplied by a 300Vdc has ON time of 2ms and switching frequency...
(1) A DC/DC converter supplied by a 300Vdc has ON time of 2ms and switching frequency of 25kHz. Determine the value of the average DC output voltage and the duty cycle. (1) single phase inverter shown below is using a 1:10 step up transformer which supplies the power to 20W load lamps. If the secondary voltage has rms value of 120Vac and the transformer total winding resistance is 0.8W. Determine the rms input voltage
DC-AC inverters have many commercial and residential applications, including uninterruptible powe...
DC-AC inverters have many commercial and residential applications, including uninterruptible power supply (UPS) units, adjustable speed drives (ASD) for AC motors, and electronic frequency changer circuits. They are also used in solar electrical systems where batteries are charged from solar panels and used as the input DC voltage source. The inverter circuit converts the DC into AC voltage of desired frequency. Most of us are also familiar with HVDC transmission systems, where high voltages are first converted from AC to...
Assume you have the circuit below injecting power from a PV array to the grid. The...
Assume you have the circuit below injecting power from a PV array to the grid. The single-phase H-bridge inverter is designed so that it is capable of injecting up to 2.5 kW into the grid when the grid voltage is 120 Vrms and the total resistance between the inverter and the grid is 0.5 Ohm (i.e., the inverter modulation index equals 1 in these conditions). Under these conditions, calculate: - The inverter output voltage Viny - The dc link voltage...
Electronic Power Converter - PWM duty cycles and sketch 2 (15 pts) You are asked to turm on & off the switches s., S.. S. S, 5. 8, so the 3-phase inverter would produce PWM voltage that is 158 115 IV]. S S, S equivalent to Vnc a The PWM frequency b IM is 1 kHz and the DC power supply to the inverter is V-300 [V) Sketch the waveforms of the variables and complete the missing info for the...
Q3 A MOSFET is used as a low-side switch to control a 15 2 resistive load from a 24 V DC supply. The MOSFET has Rps,on = 0.2 and fon foff= 40 ns. [2] (a) Draw a suitable circuit. (b) Calculate both the drain current ip and drain-source voltage vps when the MOSFET is off and when it is on. [6] (c) Calculate the power dissipated in the load and in the MOSFET while they switched on. are [4] (d)...
Please answer all the parts of the question clearly and fully!
Thank you!
Numerical Answers:
(b) (0.0 A, 24 V), (approximately 1.6 A, 0.32 V)
(c) 38.4 W, 0.5 W
(e) 0.26 W + 1.5 mW
SECTION B: Attempt any Two) questions 150 marks total! Q3 A MOSFET is used as a low-side switch to control a 15 2 resistive load from a 24 supply. The MOSFET has RDSan VDC 0.2 ? and ton-tof-40 ns. (a) Draw a suitable circuit....
Problem 31: (34 points) 1. (10 points) A pulse width modulated (PWM) signal fPwM(t) in Figure 2. The symbol D represents a duty cycle, a number between zero and one. Determine the compact trigonometric Fourier series coefficients (Co Cn, θ.) of the signal f(t) 2. (10 points) One use of PWM is to generate variable DC voltages. While the PWM signal is not DC, you should be able to see from your results in part 1 that it has a...
Problem 31: (34 points) 1. (10 points) A pulse width modulated (PWM) signal fPwM(t) in Figure 2. The symbol D represents a duty cycle, a number between zero and one. Determine the compact trigonometric Fourier series coefficients (Co C,11 %) of the signal f(t). 2. (10 points) One use of PWM is to generate variable DC voltages. While the PWM signal is not DC, you should be able to see from your results in part 1 that it hss a...
In this part of the term paper, design a single-phase switch-mode DC power supply with a forward converter. Provide answers to the questions below Please combine the single-phase full-wave rectifier from part two of your term paper with a forward converter to produce a switch-mode DC power supply, as shown below. The output of the bridge rectifier serves as input to the forward converter L1 Np: N BH621BH62 D, V1 Load C1 100p 45 Vrms D3 BH62 18H62 D4 Control...
DC-AC inverters have many commercial and residential applications, including uninterruptible power supply (UPS) units, adjustable speed drives (ASD) for AC motors, and electronic frequency changer circuits. They are also used in solar electrical systems where batteries are charged from solar panels and used as the input DC voltage source. The inverter circuit converts the DC into AC voltage of desired frequency. Most of us are also familiar with HVDC transmission systems, where high voltages are first converted from AC to...
Assume you have the circuit below injecting power from a PV array to the grid. The single-phase H-bridge inverter is designed so that it is capable of injecting up to 2.5 kW into the grid when the grid voltage is 120 Vrms and the total resistance between the inverter and the grid is 0.5 Ohm (i.e., the inverter modulation index equals 1 in these conditions). Under these conditions, calculate: - The inverter output voltage Viny - The dc link voltage...
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