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Consider your +12V power supply; explain the effect on average output voltage and ripple voltage as...
a) Consider your +12V power supply; explain the effect on average output voltage and ripple voltage...
a) Consider your +12V power supply; explain the effect on average output voltage and ripple voltage as the load current increases. Explain the reason for those effects Effect on Ripple Voltage: Effect on average output Voltage: Explain:
Design a boost converter power stage to the following specification: Input voltage Output voltage: Output voltage...
Design a boost converter power stage to the following specification: Input voltage Output voltage: Output voltage ripple:max 20mV Load power: Switching frequency: 15kHz 110-125V 300V 1.5kW Calculate: (i) Maximum duty cycle (ii) Minimum duty cycle (iii) Average diode current (iv) Assuming the Rds(on) of the MOSFET is 0.01 Ω, and the diode forward voltage is 0.8V, calculate the approximate efficiency of the circuit. 2. A switching power supply shown in the circuit below has its switch driven by a signal...
You need to design a DC power supply that provides an average DC output voltage of...
You need to design a DC power supply that provides an average DC output voltage of 5V to charge your cellphone. The maximum allowed ripple at the output is ±200 mV. Your cellphone can be modeled as a 1 50Ω load. You have to use a bridge rectifier with four diodes. Note: For calculations, consider constant voltage drop model of the diode with V0 = 0.7V. (a) The charger is designed to use in the US, i.e. transformer primary is...
Power Electronics and Drive Systems a) A boost converter is required to have an output voltage of 8 V and supply a l...
Power Electronics and Drive Systems
a) A boost converter is required to have an output voltage of 8 V and supply a load current of 1 A. The input voltage varies from 2.7 to 4.2 V. A control circuit adjusts the duty ratio to keep the output voltage constant. Select the switching frequency. Determine a value for the inductor such that the variation in inductor current is not more than 40 percent of the average inductor current for all operating...
A buck-boost converter has input voltage of 12V and operates with a duty cycle of 0.6...
A buck-boost converter has input voltage of 12V and operates with a duty cycle of 0.6 at a frequency of 50kHz and a load current of 5A average. Assuming sufficiently large L, and C = 500uF, calculate the peak-peak output voltage ripple and the rms current rating for the capacitor and inductor.
% peak to peak ripple in Vdc- 20% determine minimum capacitance at output of boost converter 3. consider forward con...
% peak to peak ripple in Vdc- 20%
determine minimum capacitance at output of boost converter
3. consider forward converter operating at 10khz with
the power in the table. the output voltage is 20v. the output
inductor is 90uh and turns ratio 1:1:1
I. operating mode?
ii. conduction loss in the forward converter switch if
switch resistance is 10milli ohm
Student #:- 2 125 Consider the following ACIDC folowed by a boost converner for active power factor correction, ana e...
Buck Converter Design Design a buck converter to produce an output voltage of 18 V across a 10-Ω load resistor. The output voltage ripple must not exceed 0.5 percent. The de supply is 48 V. Design fo...
Buck Converter Design Design a buck converter to produce an output voltage of 18 V across a 10-Ω load resistor. The output voltage ripple must not exceed 0.5 percent. The de supply is 48 V. Design for continuous inductor current. a. What is the limitation on the load resistance for continuous-current operation? b. What would be the range of output voltage for a load resistance range of 5 to 20 ohm? c. Redesign the converter so inductor current remains continuous...
unfiltered full wave rectifier Find average DC output voltage supplied to the load Find ripple factor...
unfiltered full wave rectifier
Find average DC output voltage supplied to the
load
Find ripple factor
Find average VDC output voltage supplied to the load
er. D1 T1 VPR Load 120V D2 120V: 36 VCT
er. D1 T1 VPR Load 120V D2 120V: 36 VCT
A boost regulator has an input voltage of Vs = 5V. The average output voltage Va=...
A boost regulator has an input voltage of Vs = 5V. The average output voltage Va= 15 V and the average load current la = 0.5A. The switching frequency is 25 KHz. If L = 0.15 mH and C = 220uF. Determine: the duty factor, the ripple current of inductor, the peak current inductor, the ripple voltage of filter capacitance, the critical values of L. Plot the waveforms for the source current, inductor current, filter capacitor current, capacitance voltage, and...
A Buck-boost converter has an output voltage 100 V, output power 60 W and input voltage...
A Buck-boost converter has an output voltage 100 V, output power 60 W and input voltage 12 V. Switching frequency is 15 kHz. Calculate duty ratios for the switch and the diode. Find values for the inductor L and capacitor C, when the allowed output voltage ripple is ±0.15 % and the inductor current ripple is ±1 % (of the average value). If the on-time of the switch has an inaccuracy of ±50 ns, what is the new output voltage...
a) Consider your +12V power supply; explain the effect on average output voltage and ripple voltage as the load current increases. Explain the reason for those effects Effect on Ripple Voltage: Effect on average output Voltage: Explain:
Design a boost converter power stage to the following specification: Input voltage Output voltage: Output voltage ripple:max 20mV Load power: Switching frequency: 15kHz 110-125V 300V 1.5kW Calculate: (i) Maximum duty cycle (ii) Minimum duty cycle (iii) Average diode current (iv) Assuming the Rds(on) of the MOSFET is 0.01 Ω, and the diode forward voltage is 0.8V, calculate the approximate efficiency of the circuit. 2. A switching power supply shown in the circuit below has its switch driven by a signal...
You need to design a DC power supply that provides an average DC output voltage of 5V to charge your cellphone. The maximum allowed ripple at the output is ±200 mV. Your cellphone can be modeled as a 1 50Ω load. You have to use a bridge rectifier with four diodes. Note: For calculations, consider constant voltage drop model of the diode with V0 = 0.7V. (a) The charger is designed to use in the US, i.e. transformer primary is...
Power Electronics and Drive Systems
a) A boost converter is required to have an output voltage of 8 V and supply a load current of 1 A. The input voltage varies from 2.7 to 4.2 V. A control circuit adjusts the duty ratio to keep the output voltage constant. Select the switching frequency. Determine a value for the inductor such that the variation in inductor current is not more than 40 percent of the average inductor current for all operating...
% peak to peak ripple in Vdc- 20%
determine minimum capacitance at output of boost converter
3. consider forward converter operating at 10khz with
the power in the table. the output voltage is 20v. the output
inductor is 90uh and turns ratio 1:1:1
I. operating mode?
ii. conduction loss in the forward converter switch if
switch resistance is 10milli ohm
Student #:- 2 125 Consider the following ACIDC folowed by a boost converner for active power factor correction, ana e...
Buck Converter Design Design a buck converter to produce an output voltage of 18 V across a 10-Ω load resistor. The output voltage ripple must not exceed 0.5 percent. The de supply is 48 V. Design for continuous inductor current. a. What is the limitation on the load resistance for continuous-current operation? b. What would be the range of output voltage for a load resistance range of 5 to 20 ohm? c. Redesign the converter so inductor current remains continuous...
unfiltered full wave rectifier
Find average DC output voltage supplied to the
load
Find ripple factor
Find average VDC output voltage supplied to the load
er. D1 T1 VPR Load 120V D2 120V: 36 VCT
er. D1 T1 VPR Load 120V D2 120V: 36 VCT
A boost regulator has an input voltage of Vs = 5V. The average output voltage Va= 15 V and the average load current la = 0.5A. The switching frequency is 25 KHz. If L = 0.15 mH and C = 220uF. Determine: the duty factor, the ripple current of inductor, the peak current inductor, the ripple voltage of filter capacitance, the critical values of L. Plot the waveforms for the source current, inductor current, filter capacitor current, capacitance voltage, and...
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