13 elektronika daya sepic converter - fakultas teknik · 2019. 7. 27. · title: microsoft...

Elektronika DayaTEL 12043

OlehAhmad Faisal, ST, MT

Single‐Ended Primary Inductance by DMZ

Mari kita berdoa menurut agama dankepercayaan masing‐masing sebelum kelas

dimulai.

Doa dimulai…


SINGLE‐ENDED PRIMARY INDUCTANCE(SEPIC)CONVERTER


What you should know after this lecture


RencanganPembelajaran

Semester (RPS)Sem. B ta 2018/19

Jadwal Kandungan Jam

Minggu‐1 Pengenalan

Senin (13.00‐14‐40 wib) R. II.1

Rabu (17.00‐18.30 wib) R. A.II.3

Minggu‐2 Rectifier ½ gel Beban R

Minggu‐3 Rectifier ½ gel Beban RL

Minggu‐4

Penyearah setengahgelombang beban resistif daninduktif dan diodefreewheling

Minggu‐5Penyearah gelombang penuhbeban resistif

Minggu‐6 DC‐DC konverter

Minggu‐7 Sejarah power supply

Minggu‐8 Ujian tengah semester

Minggu‐9 Buck converter

Minggu‐10 Boost converter

Minggu‐11 Manajemen thermal

Minggu‐12 AC‐ AC konverter

Minggu‐13 PE Curve

Minggu‐14 SEPIC Converter

Minggu‐15 Pengurusan energi dan daya

Minggu‐16 Ujian Akhir

Tugas 1 Tugas 2


KVL and KCL in steady‐state operation


Analysis for switch ON


Analysis for the Switch OFF


Analysis for the Switch ON and OFF


Output Voltage Transfer Function• For steady‐state operation, the net change in inductor current

must be zero over one period


• This result is similar to that of the Buck‐boost and Cukconverter equations, with the important distinction that thereis no polarity reversal between input and output voltages.

• The ability to have an output voltage greater or less than theinput with no polarity reversal makes this converter suitablefor many applications

or

SEPIC Converter Analysis


SEPIC Converter Analysis: CCM in L1


SEPIC Converter Analysis: CCM in L2


SEPIC Converter Analysis: Series Capacitor, C1


SEPIC Converter Analysis: Series Capacitor, C2


SEPIC Converter Analysis: Output Voltage Ripple


SEPIC Converter Analysis: Voltage Ripple in C1

• The voltage variation in C1 is determined form the circuit with the switch closed. Capacitor current iC1 is the opposite of iL2, which has previously been determined to have an average value of Io. From the definition of capacitance and considering the magnitude of charge


SEPIC Converter: Example 1

• The SEPIC circuit has the following parameters:• Vs = 9 V• D =0.4• f = 100 kHz• L1 = L2= 90uH• C1 = C2= 80uF• Io = 2 A• Determine the output voltage; the average,

maximum, and minimum inductor currents; and the variation in voltage across each capacitor.


SEPIC Converter: Solution Example 1



• The SEPIC circuit has• Vs = 5 V• Vo = 12 V• C1 = C2 = 50 μF• L1 = 10 H• L2 =20 H• The load resistor = 4 Ohm.• Sketch the currents in L1 and L2, indicating

average, maximum, and minimum values.• The switching frequency is 100 kHz.



• The SEPIC circuit has• Vs = 3.3 V• D =0.7• L1= 4uH• L2 = 10 uH.• The load resistor is 5 ohm.• The switching frequency is 300 kHz.• (a) Determine the maximum and minimum values of

the currents in L1 and L2.• (b) Determine the variation in voltage across each

capacitor.



• A SEPIC circuit has an input voltage of 15 V and is to have an output of 6 V. The load resistance is 2 , and the switching frequency is 250 kHz.

• Determine• (i) Values of L1 and L2 such that the variation in

inductor current is 40 percent of the average value.

• (ii) Values of C1 and C2 such that the variation in capacitor voltage is 2 percent.


SEPIC Converter:Solution Example 4


THANK YOU FOR COMING.


13 elektronika daya sepic converter - fakultas teknik · 2019. 7. 27. · title: microsoft...

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