Abstract




 
   

IJE TRANSACTIONS A: Basics Vol. 27, No. 1 (January 2014) 123-130   

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  HIGH GAIN DC-DC CONVERTER USING ACTIVE CLAMP CIRCUIT (RESEARCH NOTE)
 
M. Prabhakar
 
( Received: January 11, 2013 – Accepted: August 22, 2013 )
 
 

Abstract    In this paper, a boost converter with a clamp circuit is proposed for high intensity discharge (HID) lamp application. The clamp circuit provides zero voltage turn on for both main and clamp switches. Compared to conventional boost converters, the proposed converter has the following advantages: (i) high voltage gain without suffering from extreme duty ratio, (ii) low stress on the switches and (iii) low switching losses. Simulation and experimental results show that the voltage stress on the switches are well within acceptable limits and prove the converter’s performance over a wide load range.

 

Keywords    DC-DC converter, resonant power conversion, voltage gain

 

چکیده    در این مقاله، یک تبدیل کننده بوستر (تقویت کننده) با مدار بسته برای کاربرد در لامپ تخلیه شدت بالا پیشنهاد شده است. مدار بسته که ولتاژ صفر را ایجاد می کند برای کلیدهای اصلی و بسته روشن می شود. در مقایسه با تبدیل کننده های رایج بوستر، تبدیل کننده پیشنهادی فواید زیر را دارد: (i) بهره ولتاژ بالا بدون مزاحمت نسبت بار نهایی، (ii) فشار پایین روی کلیدها و (iii) اتلافات کم در هنگام کلیدزدن. نتایج شبیه سازی و تجربی نشان می دهد که فشار ولتاژ روی کلیدها در محدوده قابل قبول است و عملکرد تبدیل کننده را در دامنه گسترده بارگذاری اثبات می کند.

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