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Abstrak :
ABSTRACT
The importance of power electronics has significantly increased in the last few decades. Many applications such as electric vehicles and renewable energy systems would not be possible without them. Power electronics is based primarily on the switching of power semiconductor devices. One of the most important power semiconductors used is silicon-controlled rectifier or thyristor. Its characteristics allows for control of electric power. However, thyristors operating in DC systems requires an additional circuit to turn off. This circuit is called an extinction circuit. This thesis used the software LTspice to simulate the circuit and analyze the waveforms produced by it and the software EAGLE to design the printed circuit broad. The developed ignition circuit produced a current of 27 mA on the gate of the thyristor which is controlled manually by a push button to turn on the thyristor. During the measurement of the extinction circuit, the supply voltage and load current were varied to see its effects on the circuit turn off time. The measurement results show that an increasing supply voltage cause the circuit turn off time to increase while increasing the load current resulted in a lower circuit turn off time.

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ABSTRAK
Pentingnya elektronika daya telah meningkat secara signifikan dalam beberapa dekade terakhir. Banyak aplikasi seperti kendaraan listrik dan sistem energi terbarukan tidak akan mungkin diporduksi tanpanya. Elektronika daya didasarkan pada penggunaan perangkat semikonduktor daya. Salah satu perangkat semikonduktor yang paling penting digunakan adalah Silicon Controlled Rectifier atau thyristor. Karakteristiknya memungkinkan untuk mengontrol tenaga listrik. Namun, thyristor yang beroperasi dalam sistem DC membutuhkan rangkaian tambahan untuk dimatikan. Rangkaian ini disebut extinction circuit. Skripsi ini menggunakan perangkat lunak LTspice untuk mensimulasikan rangkaian dan menganalisis bentuk gelombang yang dihasilkan olehnya dan perangkat lunak EAGLE untuk merancang PCB. Ignition circuit yang dikembangkan menghasilkan arus sebesar 27 mA di gate thyristor yang dikendalikan secara manual dengan menekan tombol untuk menyalakan thyristor. Selama pengukuran extinction circuit, tegangan suplai dan arus beban divariasikan untuk melihat efeknya pada circuit turn off time. Hasil pengukuran menunjukkan bahwa peningkatan tegangan suplai menyebabkan circuit turn off time untuk meningkat sedangkan meningkatkan arus beban mengakibatkan circuit turn off time yang lebih rendah.

Abstrak :
This textbook provides an in-depth treatment of the physics of power semiconductor devices that are commonly used by the power electronics industry. Drawing upon decades of industry and teaching experience and using numerous examples and illustrative applications, the author discusses in detail the various device performance attributes that allow practicing engineers to develop energy-efficient products. Coverage includes all types of power rectifiers and transistors and analytical models for explaining the operation of all power semiconductor devices are developed and demonstrated in each section of the book. Throughout the book, emphasis is placed on deriving simple analytical expressions that describe the underlying physics and enable representation of the device electrical characteristics. This treatment is invaluable for teaching a course on power devices because it allows the operating principles and concepts to be conveyed with quantitative analysis. The treatment focuses on silicon devices but includes the unique attributes and design requirements for emerging silicon carbide devices. This new edition also includes a chapter on the impact of power semiconductor devices on energy savings and reduction of carbon emissions.