دانلود A simple voltage-to-frequency converter with modulated duty cycle

ترجمه فارسی A simple voltage-to-frequency converter with modulated duty cycle
قیمت : 255,000 ریال
شناسه محصول : 2008725
نویسنده/ناشر/نام مجله : Journal of the Chinese Institute of Engineers
سال انتشار: 2015
تعداد صفحات انگليسي : 12
نوع فایل های ضمیمه : Pdf+Word
حجم فایل : 1 Mb
کلمه عبور همه فایلها : www.daneshgahi.com
عنوان انگليسي : A simple voltage-to-frequency converter with modulated duty cycle

چکیده

Abstract

A simple voltage-to-frequency converter (VFC) with modulated duty cycles is proposed. The proposed VFC is composed of an operational amplifier, a voltage-to-current circuit, a charge and discharge circuit, a comparator, and a Schmitt trigger. The 50% duty cycle signal is always obtained at the output of the Schmitt trigger and multiple duty cycles can be obtained at the output of the comparator by simply adjusting an external voltage level. Due to its simplicity, the proposed VFC circuit can be easily combined with other circuitry to extend its practical application. The errors caused by the circuit non-idealities are investigated to quantify the trade-offs between performance and cost. The proposed VFC, which features modulated duty cycles, is realized in a standard 0.18-μm 1P6M complementary metal-oxide-semiconductor (CMOS) technology, and an active area of 210 μm × 190 μm is occupied. Experimental results show that the proposed converter is useful for output frequency ranges from 315 kHz to 2.53 MHz with an input voltage range of 0.2–1.6 V and a power consumption of 0.8 mW.

Keywords: voltage-to-frequency converter (VFC) operational amplifier
این برای گرایش های: کلیه گرایش ها، کاربرد دارد. [ برچسب: ]

Skip Navigation Links