You are hired as a technical consultant to model, design and analyze an efficient DC-DC buck converter for a solar PV battery charger as shown in the below figure. PV DC-DC Battery system Converter MPPT Charge controller algorithm Given the following specifications for the design and analysis of a DC-DC Buck Converter: An input voltage of 15V < Vin < 20V and an output of Vout = 10V over a load range of Sw < Pout < 200W. Switching frequency is fcw = 500kHz. a) Design the inductor (L) and capacitor (C). The current ripple AiL should be below 5% oft average inductor current IL at the maximum load. The steady state ripple AVout is below ( % of the steady-state value of the output voltage. For the designed L, find the value

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You are hired as a technical consultant to model, design and analyze an efficient DC-DC buck converter
for a solar PV battery charger as shown in the below figure.
PV
DC-DC
Battery
system
Converter
| MPPT
algorithm
Charge
controller
Given the following specifications for the design and analysis of a DC-DC Buck Converter:
An input voltage of 15V < Vin < 20V and an output of Vout = 10V over a load range of
5w < Pout < 200W. Switching frequency is few = 500kHz.
a) Design the inductor (L) and capacitor (C). The current ripple AiL should be below 5% of the
average inductor current IL at the maximum load. The steady state ripple AVout is below 0.5
% of the steady-state value of the output voltage. For the designed L, find the value of
Iout,crit at the boundary of DCM and CCM and then Plot Iout,crit vs. Vin .
b) Design the rated values for switch, diode, and capacitor. Research and determine a
manufacturer part number for your switch, diode, and capacitor. Provide data sheets for each.
c) Analytically evaluate and draw the expected current and voltage waveforms for each
component in your circuit at both light and heavy loads.
Transcribed Image Text:You are hired as a technical consultant to model, design and analyze an efficient DC-DC buck converter for a solar PV battery charger as shown in the below figure. PV DC-DC Battery system Converter | MPPT algorithm Charge controller Given the following specifications for the design and analysis of a DC-DC Buck Converter: An input voltage of 15V < Vin < 20V and an output of Vout = 10V over a load range of 5w < Pout < 200W. Switching frequency is few = 500kHz. a) Design the inductor (L) and capacitor (C). The current ripple AiL should be below 5% of the average inductor current IL at the maximum load. The steady state ripple AVout is below 0.5 % of the steady-state value of the output voltage. For the designed L, find the value of Iout,crit at the boundary of DCM and CCM and then Plot Iout,crit vs. Vin . b) Design the rated values for switch, diode, and capacitor. Research and determine a manufacturer part number for your switch, diode, and capacitor. Provide data sheets for each. c) Analytically evaluate and draw the expected current and voltage waveforms for each component in your circuit at both light and heavy loads.
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