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

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Single‐Ended Primary Inductance by DMZ

SINGLE‐ENDED PRIMARY INDUCTANCE(SEPIC)CONVERTER

Single‐Ended Primary Inductance by DMZ

What you should know after this lecture

Single‐Ended Primary Inductance by DMZ

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

Single‐Ended Primary Inductance by DMZ

Single‐Ended Primary Inductance by DMZ

KVL and KCL in steady‐state operation

Single‐Ended Primary Inductance by DMZ

Analysis for switch ON

Single‐Ended Primary Inductance by DMZ

Analysis for the Switch OFF

Single‐Ended Primary Inductance by DMZ

Analysis for the Switch ON and OFF

Single‐Ended Primary Inductance by DMZ

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

must be zero over one period

Single‐Ended Primary Inductance by DMZ

• 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

Single‐Ended Primary Inductance by DMZ

SEPIC Converter Analysis

Single‐Ended Primary Inductance by DMZ

SEPIC Converter Analysis

Single‐Ended Primary Inductance by DMZ

SEPIC Converter Analysis

Single‐Ended Primary Inductance by DMZ

SEPIC Converter Analysis: CCM in L1

Single‐Ended Primary Inductance by DMZ

SEPIC Converter Analysis: CCM in L2

Single‐Ended Primary Inductance by DMZ

SEPIC Converter Analysis: Series Capacitor, C1

Single‐Ended Primary Inductance by DMZ

SEPIC Converter Analysis: Series Capacitor, C1

Single‐Ended Primary Inductance by DMZ

SEPIC Converter Analysis: Series Capacitor, C2

Single‐Ended Primary Inductance by DMZ

SEPIC Converter Analysis: Output Voltage Ripple

Single‐Ended Primary Inductance by DMZ

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

Single‐Ended Primary Inductance by DMZ

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.

Single‐Ended Primary Inductance by DMZ

SEPIC Converter: Solution Example 1

Single‐Ended Primary Inductance by DMZ

SEPIC Converter: Solution Example 1

Single‐Ended Primary Inductance by DMZ

SEPIC Converter: Solution Example 1

Single‐Ended Primary Inductance by DMZ

SEPIC Converter: Example 2

• 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.

Single‐Ended Primary Inductance by DMZ

SEPIC Converter: Solution Example 2

Single‐Ended Primary Inductance by DMZ

SEPIC Converter: Example 3

• 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.

Single‐Ended Primary Inductance by DMZ

SEPIC Converter: Solution Example 3

Single‐Ended Primary Inductance by DMZ

SEPIC Converter: Example 4

• 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.

Single‐Ended Primary Inductance by DMZ

SEPIC Converter:Solution Example 4

Single‐Ended Primary Inductance by DMZ

THANK YOU FOR COMING.

Single‐Ended Primary Inductance by DMZ