Explain the principle of DC converter operation with (a) resistive and (b) RL load using appropriate...
Explain the principle of DC converter operation with (a) resistive and (b) RL load using appropriate circuit diagrams and waveforms.
In a buck-boost converter operating at 30 kHz, L=0.05 mH. The output capacitor C is sufficiently large and Vd=15 V. The output is to be regulated at 10 V and the converter is supplying a load of 10 W. Calculate the duty ratio D.
Homework Answers
For explanation I use buck converter
for
D=0.4 converter is in discontinues conduction mode
Add Answer to:
Explain the principle of DC converter operation with (a)
resistive and (b) RL load using appropriate...
Buck Converter Question Q3. A Buck converter is used to produce a regulated 10V, 5A DC...
Buck Converter Question
Q3. A Buck converter is used to produce a regulated 10V, 5A DC power supply from a variable DC source with an nominal input voltage of Vin = 20V±5V. The Buck converter switches at 250kHz, and operates entirely in the continuous conduction mode. The output filter capacitance is C1.0uF 3.a. Draw the circuit topology for the Buck converter. Ensure that your circuit includes the input DC source, the output load resistance, the switching devices (i.e. MOSFET and...
a9a resistive load. Inductor 3-(35 pts) Design a converter that has an input voltage of 24 V DC and supplies 18 V DC to current is desired to be continuous and must not change more than 30 % of i...
a9a resistive load. Inductor 3-(35 pts) Design a converter that has an input voltage of 24 V DC and supplies 18 V DC to current is desired to be continuous and must not change more than 30 % of its average value voltage ripple must be lower than 2 %. Switching frequency is 10 kHz. a) Draw the circuit diagram. Calculate the duty ratio. Calculate values for 2 desired conditions of the inductor current and determine the value of the...
+ VDS Consider the Buck DC-to-DC converter shown above. Assume it is operated at a switching...
+ VDS Consider the Buck DC-to-DC converter shown above. Assume it is operated at a switching frequency, f 25 KHz, with a duty cycle, D- 0.4 a) Given the sketch of the inductor current, i(t), shown below, sketch the waveforms for the input current, (t), the output current, i(t), the diode current, ip(), and the capacitor current, ict).Also, compute their average, RMS and peak values. (Note: Some useful formulas are provided on the last page) 10 5 t (s) (b)...
3. A PV array is feeding a Buck Converter which is in turn feeding a resistive...
3. A PV array is feeding a Buck Converter which is in turn feeding a resistive load, Rr. The system is nominally operating at the maximum power point (MPP). PV conditions: Vm= 45 V Im= 5 A Buck Converter: Cin = 470 uF Cout = 1000 uF L = 1 mH fsw = 50 kHz Load: 3Ω resistive a) Calculate the duty cycle of the buck converter. (Note: System is operating at MPP.) b) Calculate the peak-peak inductor ripple current....
a step down chopper (buck converter) is delivers power to 10 ohms resistive load from 120...
a step down chopper (buck converter) is delivers power to 10 ohms resistive load from 120 v dc source at a duty cycle of 75%. determine the average switch current
A buck converter is operating in the steady state with an input voltage of = 42 V dc, D = 0.3, ou...
A buck converter is operating in the steady state with an input voltage of = 42 V dc, D = 0.3, output power of 24 W, an inductance of 25 H and a switching frequency of 400 kHz. Draw the input current, inductor current, inductor voltage, and capacitor current waveforms. Assume the dc component of the inductor current flows through to the load and the ac component of the inductor current flows through the capacitor. Assume ideal circuit components.
In a Buck-Boost converter, L=25 μΗ. It is operating in dc steady state under the following
In a Buck-Boost converter, \(L=25 \mu \mathrm{H}\). It is operating in dc steady state under the following conditions: \(V_{i n}=12 \mathrm{~V}, D\) \(=0.6, P_{o}=36 \mathrm{~W}\), and \(f_{s}=400 \mathrm{kHz}\). Assume ideal components.In this Buck-Boost converter, the output load is changing. Calculate the critical value of the output load \(P_{o}\) below which the converter will enter the discontinuous conduction mode of operation.(a) Calculate \(I_{\text {L.crit }}\) and \(I_{o, \text { crit }}\)(b) Calculate \(P_{o, \text { crit }}\)
Q5. 5.a. Sketch the circuit arrangement of a DC-DC boost (step up) converter, clearly labelling each...
Q5. 5.a. Sketch the circuit arrangement of a DC-DC boost (step up) converter, clearly labelling each circuit element [4 тarks] [Refer to lecture notes] Sketch all significant operating waveforms for this converter for continuous conduction conditions over two switching periods, in particular showing 5.b. the voltage across the main switching device and the boost diode. [2 marks the voltage across the inductor [3 тarks] the current flowing through the inductor [3 marks [Refer to lecture notes] 5.c. The DC-DC boost...
Design a DC-DC boost converter, shown below, that converts an unregulated supply of 12.0 Vak into a load voltage of...
Design a DC-DC boost converter, shown below, that converts an unregulated supply of 12.0 Vak into a load voltage of 30.0 Ve and load current of 0.25 A. The switching frequency of the transistor is 100 kHz. The transistor has an on-resistance of 0.15 Ω and the diode drops 0.7 V when it is conducting. The voltage ripple (Av) is taken as 20 mVpp The circuit has 80% conversion efficiency. Find the DC input-current (Iden), duty-cycle (D), inductance (L), power-dissipation...
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.
Buck Converter Question
Q3. A Buck converter is used to produce a regulated 10V, 5A DC power supply from a variable DC source with an nominal input voltage of Vin = 20V±5V. The Buck converter switches at 250kHz, and operates entirely in the continuous conduction mode. The output filter capacitance is C1.0uF 3.a. Draw the circuit topology for the Buck converter. Ensure that your circuit includes the input DC source, the output load resistance, the switching devices (i.e. MOSFET and...
a9a resistive load. Inductor 3-(35 pts) Design a converter that has an input voltage of 24 V DC and supplies 18 V DC to current is desired to be continuous and must not change more than 30 % of its average value voltage ripple must be lower than 2 %. Switching frequency is 10 kHz. a) Draw the circuit diagram. Calculate the duty ratio. Calculate values for 2 desired conditions of the inductor current and determine the value of the...
+ VDS Consider the Buck DC-to-DC converter shown above. Assume it is operated at a switching frequency, f 25 KHz, with a duty cycle, D- 0.4 a) Given the sketch of the inductor current, i(t), shown below, sketch the waveforms for the input current, (t), the output current, i(t), the diode current, ip(), and the capacitor current, ict).Also, compute their average, RMS and peak values. (Note: Some useful formulas are provided on the last page) 10 5 t (s) (b)...
3. A PV array is feeding a Buck Converter which is in turn feeding a resistive load, Rr. The system is nominally operating at the maximum power point (MPP). PV conditions: Vm= 45 V Im= 5 A Buck Converter: Cin = 470 uF Cout = 1000 uF L = 1 mH fsw = 50 kHz Load: 3Ω resistive a) Calculate the duty cycle of the buck converter. (Note: System is operating at MPP.) b) Calculate the peak-peak inductor ripple current....
Q5. 5.a. Sketch the circuit arrangement of a DC-DC boost (step up) converter, clearly labelling each circuit element [4 тarks] [Refer to lecture notes] Sketch all significant operating waveforms for this converter for continuous conduction conditions over two switching periods, in particular showing 5.b. the voltage across the main switching device and the boost diode. [2 marks the voltage across the inductor [3 тarks] the current flowing through the inductor [3 marks [Refer to lecture notes] 5.c. The DC-DC boost...
Design a DC-DC boost converter, shown below, that converts an unregulated supply of 12.0 Vak into a load voltage of 30.0 Ve and load current of 0.25 A. The switching frequency of the transistor is 100 kHz. The transistor has an on-resistance of 0.15 Ω and the diode drops 0.7 V when it is conducting. The voltage ripple (Av) is taken as 20 mVpp The circuit has 80% conversion efficiency. Find the DC input-current (Iden), duty-cycle (D), inductance (L), power-dissipation...
Most questions answered within 3 hours.
-
Convert the contents of text file to upper case (C++
Programming)
Convert the contents of a...
asked 8 minutes ago -
The balance in the prepaid
insurance account, before adjustment at the end of the year, is...
asked 10 minutes ago -
22. Suppose that each firm has the long run cost function
c(y) = y2 + 9...
asked 16 minutes ago -
Resting Metabolic Rate: Seated vs. Lying supine: What would be
happening physiologically that is different in...
asked 16 minutes ago -
What Volume (in mL) of KBr solution must be taken so it will
contain 2.83x10^-5 moles...
asked 35 minutes ago -
Dr Johnson invests $9,000 at the rate of 6% annual interest
compounded semi annually for 4...
asked 36 minutes ago -
The contribution format income statement for Huerra Company for
last year is given below:
Total
Unit...
asked 44 minutes ago -
How do I write a program in MIPs assembly that will take 2 words
from the...
asked 44 minutes ago -
two identical cars approach an intersection, one is traveling east
at 18n/s. the second is traveling...
asked 50 minutes ago -
When an X-ray beam with a wavelength of 133 pm is incident on
the surface to...
asked 59 minutes ago -
Compare and contrast the internal and external organization of
Congress and the President.
"2 paragraph"
asked 1 hour ago -
Suppose that the average waiting time for a patient at a
physician's office is just over...
asked 1 hour ago