A new half bridge converter for the personal computer power supply

2008 ◽  
Author(s):  
Kyu-Min Cho ◽  
Won-Sik Oh ◽  
Keun-Wook Lee ◽  
Gun-Woo Moon
Keyword(s):  
Personal Computer ◽  
Power Supply ◽  
Computer Power

scholarly journals MONITORING DAN KONTROL PADA UPS MENGGUNAKAN MONITORING HUMAN MACHINE INTERFACE ( HMI ) SEBAGAI MEDIA PEMBELAJARAN DI LABOLATORIUM LISTRIK POLITEKNIK PENERBANGAN SURABAYA

2019 ◽  
Vol 4 (4) ◽  
pp. 10-17
Author(s):  
Kustori Kustori
Keyword(s):  
Personal Computer ◽  
Power Supply ◽  
Human Machine Interface ◽  
Uninterruptible Power Supply ◽  
Machine Interface ◽  
Uninterruptible Power

Gedung Labolatorium Praktik Integrasi di Politaknik Penerbangan Surabaya, belum memiliki alat peraga ( Praktikum ) Uninterruptible Power Supply(UPS), sebagai supply catu daya cadangan apabila PLN OFF. Generator set (genset) membutuhkan waktu sekitar 12 detik untuk menyala setelah PLN OFF, oleh karena itu dibutuhkan adanya UPS guna memberikan perlindungan listrik bersih tak terputus atau interupt pada beban yang terhubung. Jadi, sistem kerja dari UPS tidak pernah OFF dan selalu standby dengan berbagai situasi dan kondisi. Dengan demikian, sistem di dalam UPS semakin lama semakin berkurang ketahanan dan usianya. Ketahanan dalam penyimpanan catu daya cadangan akan semakin melemah karena penggunaan yang setiap saat. Oleh karena itu apabila terjadi gangguan pada salah satu UPS yang dapat menyebabkan UPS tersebut tidak dapat bekerja sebagai mana mestinya, dibutuhkannya backup lain yang tetap akan dapat mem-backup beban UPS yang tidak dapat bekerja tersebut. Peneliti mencoba untuk membuat monitoring dan kontrol pada UPS menggunakan monitoring Human Machine intervase ( HMI ) yang bertujuan untuk menjaga suatu sistem tetap berfungsi dengan normal walaupun terdapat elemen yang tidak berfungsi. Hal ini biasanya dicapai dengan memiliki komponen backup yang berfungsi sama dengan elemen sistem. Sistem HMI pada UPS menekankan pada parameter seperti arus dan tegangan menggunakan personal computer (PC) sebagai interface dengan device pengontrol yaitu Mikrocontroller.

SIMULATION OF DESIGN COMPONENTS OF POWER SUPPLY SYSTEMS FOR PERSONAL COMPUTERS

2021 ◽  
pp. 8-13
Author(s):  
А.Н. Юров ◽  
Д.В. Цымбал
Keyword(s):  
Personal Computer ◽  
Power Supply ◽  
Pulsed Power ◽  
Power Supply Unit ◽  
Information Storage ◽  
Stable Operation ◽  
Assembly Model ◽  
Storage Devices ◽  
Linear Programming Methods ◽  
Supply Systems

Предложена разработка цифрового макета изделия, который представляет собой компонент ЭВМ - импульсный блок питания. Производится анализ предполагаемых компонентов персонального компьютера, которые будут установлены в систему. При необходимости есть возможность выбора с добавлением новых компонентов в системный блок ЭВМ. После определения заданных компонентов ПК производится расчет мощности, которая нужна для получения стабильной работы системы в целом. По произведенным расчетам выполняется 3D-моделирование блока питания с разъемами для подключения материнской платы, видеокарты, а также прочих устройств, в том числе и накопителей информации. В работе исследованы вопросы по применению методов линейного программирования для решения поставленных задач в соответствии с исходными данными, а также подходы по получению 3D-модели источника питания с построенными трассами до разъемов подключения устройств и компонентов персонального компьютера. Кроме того, подготовлено программное обеспечение, в котором визуально представлен процесс построения сборочной модели БП согласно произведенным расчетам We propose the development of a digital model of the product, which is a computer component - a pulsed power supply. We carried out the analysis of the expected components of the personal computer that will be installed in the system. If necessary, there is a choice with the addition of new components to the system unit of the computer. After determining the specified PC components, the power is calculated, which is needed to obtain stable operation of the system as a whole. According to the calculations made, 3D-modeling of the power supply unit with connectors for connecting the motherboard, video card, as well as other devices, including information storage devices, is performed. The paper investigates the issues of using linear programming methods for solving the assigned tasks in accordance with the initial data, as well as approaches to obtaining a 3D model of a power supply with constructed routes to the connectors for connecting devices and components of a personal computer. In addition, we prepared the software, in which the process of building an assembly model of a power supply unit is visually presented according to the calculations

Power Quality Improvement in Bridgeless Ac–Dc Converter Based Multi-output Switched Mode Power Supply

2014 ◽  
Vol 15 (6) ◽  
pp. 533-544
Author(s):  
Shihka Singh ◽  
Bhim Singh ◽  
G. Bhuvaneswari ◽  
Vashist Bist
Keyword(s):  
Power Supply ◽  
Input Power ◽  
Utility Interface ◽  
Simulated Performance ◽  
High Input Power ◽  
Bridge Rectifier ◽  
Power Quality Improvement ◽  
Switched Mode Power Supply ◽  
Improved Performance ◽  
Computer Power

Abstract Computer power supplies are required to have multiple isolated regulated dc voltages with low ripple content and high input power factor at the utility interface. A dc–dc converter is used for obtaining these isolated multi-output dc voltages with excellent regulation. In this paper, a non-isolated ac–dc converter is proposed as the first stage converter to obtain a regulated dc output rather than using a simple uncontrolled diode bridge rectifier at the front end. A dc–dc converter is used at the second stage that has a high frequency transformer with multiple secondary windings to obtain different dc voltage levels at the output. The proposed bridgeless converter based power supply is designed using fundamental design equations, and different component values are calculated. Extensive simulations are carried out to demonstrate the improved performance of the proposed bridgeless converter based multi-output computer power supply at varying source voltages and load conditions. Experimental validation of the power supply is carried on a developed hardware prototype, and the test results are compared with the simulated performance for design verification.

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