طراحی و ساخت مدار زیمر به‌منظور تحریک فلاش لامپ در لیزر حالت جامد
محورهای موضوعی : مهندسی برق الکترونیک
1 - پژوهشکده علوم و فناوری اپتیک و لیزر، مجتمع دانشگاهی علوم کاربردی، دانشگاه صنعتی مالک‌اشتر، شاهین‌شهر، اصفهان، ایران
کلید واژه: مدار تریگر, لیزر, زیمر, منبع تغذیه, فلاش لامپ,
چکیده مقاله :
در لیزرهای حالت جامد دمش نوری میله لیزری توسط فلاش لامپ انجام می‌شود. به‌منظور راه‌اندازی فلاش لامپ از یک منبع تغذیه الکتریکی متشکل از چهار بخش اصلی شامل منبع تغذیه شارژ کننده خازنی، مدار تریگر، شبکه شکل‌دهنده پالس و مدار زیمر استفاده می‌شود. با استفاده از خروجی ولتاژ بالای مدار تریگر، گاز زنون داخل فلاش لامپ یونیزه می‌شود. پس از عمل تریگر وظیفه اصلی مدار زیمر تولید جریان کم به‌منظور حفظ حالت یونیزه فلاش لامپ است. استفاده از حالت زیمر موجب افزایش طول عمر فلاش لامپ و همچنین کاهش چشمگیر تداخل مزاحم الکتریکی و الکترومغناطیسی می‌شود. در این مقاله یک مدار زیمر جدید جهت راه‌اندازی فلاش لامپ در لیزر حالت جامد پیشنهادشده است. مدار ارائه‌شده به‌طور کامل طراحی و سپس در محیط نرم‌افزار PSPICE شبیه‌سازی‌شده است. پس از تأیید صحت عملکرد آن، مدار پیشنهادی به‌صورت آزمایشگاهی پیاده‌سازی شده است. نتایج شبیه‌سازی مدار و نتایج آزمایشگاهی در این مقاله ارائه و گزارش‌شده است.
In solid state lasers, the light pumping of the laser rod is done by a flash lamp. In order to drive the flash lamp, an electrical power supply consisting of four main parts is used, including the capacitor charging power supply, the trigger circuit, the pulse forming network and the simmer circuit. Using the high voltage output of the trigger circuit, the xenon gas inside the flash lamp is ionized. After the trigger action, the main task of the simmer circuit is to generate a low current in order to maintain the ionized state of the flash lamp. Using the simmer mode increases the life of the flash lamp and also significantly reduces electrical and electromagnetic interference. In this article, a new simmer circuit is proposed for driving flash lamp in solid state laser. The presented circuit has been completely designed and then simulated in the PSPICE software environment. After confirming the correctness of its operation, the proposed circuit has been implemented in a laboratory. Circuit simulation results and laboratory results are presented and reported in this article.
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