طراحی و شبیه سازی مدار مولد توابع عضویت فازی با پشتیبانی از متغیرهای زبانی کم توان
الموضوعات :
حمید شهبازی
1
,
مژده مهدوی
2
,
مهدی زارع
3
1 - گروه الکترونیک، واحد شهر قدس، دانشگاه آزاد اسلامی، تهران، ایران
2 - گروه الکترونیک- واحد شهرقدس- دانشگاه آزاد اسلامی- تهران- ایران
3 - گروه الکترونیک، واحد شهر قدس، دانشگاه آزاد اسلامی، تهران، ایران
الکلمات المفتاحية: زیر آستانه, مدار مولد تابع تواندار, کنترلر فازی, مدارات مجتمع,
ملخص المقالة :
در این مقاله، یک مدار کم توان برای تولید توابع تواندار در کاربردهای فازی ارائه شده است. مدار مولد توابع تواندار پیشنهادی متشکل از مدارهای مربع‌کننده، رادیکال‌گیر و ضرب‌کننده آنالوگ است. تمامی مدارها در ناحیه‌ی زیر آستانه طراحی شده‌اند تا حداقل توان مورد نیاز بدست آید. در ماژول مولد توان پیشنهادی از یک مدار فازی‌ساز منطبق و برای تنظیم شیب‌های توابع فازی از مدارات ضربکننده‌ی آنالوگ استفاده شده است. طراحی این مدار به گونه‌ای است که علاوه بر قابلیت‌های تنظیمات پیشین، قابلیت تنظیم شیب‌های بالارونده و پایین‌رونده را به صورت کاملا جداگانه دارد. برای قسمت مولد توان نیز از ضرب‌کننده‌های آنالوگ استفاده شده تا بتوان توان‌های دلخواه را به صورت پیوسته و با حداقل ورودی‌های کنترلی تولید نمود. ساختار پیشنهادی در تکنولوژی 35/0 میکرومتر ارائه شده و نتایج شبیه‌سازی نشان می‌دهد که در مقدار ولتاژ تغذیه 3/1 ولت، توان مصرفی برابر با 0036/0 میکرو وات و مقدار خطای 8/0 درصد است که بررسی بهترین اطلاعات موجود در این رده از ساختارها، بیانگر بهبود ساختار پیشنهادی از لحاظ خطا و توان مصرفی است.
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