Please use this identifier to cite or link to this item:
標題: 自動變頻脈波寬度調變控制器
Auto Setting Frequency Pulse Width Modulation Controller
作者: 廖家明
Liao, Jia-Ming
關鍵字: 脈波寬度調變;pwm;頻率;frequency
出版社: 電機工程學系所
引用: [1] N. Mohan, T.M. Undeland, W.P. Robbins, Power Electronics: Converters, Applications, and Design, Third Edition, John Wiley & Sons, Inc [2] B. Razavi, Design of Analog CMOS Integrated Circuits, McGraw- Hill, 2001 [3] C. P. Basso, Switch-Mode Power Supplies, McGraw-Hill,2008 [4] 梁適安, 交換式電源供給器之理論與實務設計, 全華圖書,1999 [5] B. Provost, E. Sánchez-Sinencio, “On-chip ramp generators for mixed-signal BIST and ADC self-test”,IEEE J. OF SOLID-STATE CIRCUITS, VOL. 38, No. 2, pp.263 –273, Feb 2003 [6] R. Turner, R. Duke, S. Walton, “Dynamic frequency scaling to improve converter efficiency”, Universities Power Engineering Conference, 2007, Australasian, pp.1-5, Dec. 2007 [7] Feeling Technology Corp., FP6290 datasheet. [8] Micro Bridge Technology Co.,Ltd., PT1101 datasheet. [9] A. Barrado, R. Vazquez, A. Lazaro, J. Pleite, E. Olias, and J. Pleite “Linear-non-Linear control for DC-DC buck converter: stability and transient response analysis,” Nineteenth Annual IEEE Applied Power Electronics Conf. Eposition (APEC ’04), vol.2, pp.1329-1335,2004. [10] A. Barrado, R. Vazquez, A. Lazaro, J. Pleite, and E. Olias, “Fast transient response with combined linear-non-linear control applied to buck converters,” IEEE Power Electronics Specialists Conf., Vol.4 pp1587-1592, June 2002.

In general case, the frequency of the PWM is adjusted by changing the resistor or capacitor. However, it's time-consuming and inconvenient to replace the resistor or the capacitor while changing the frequency. Hence, this research is aimed to propose two solutions of this problem. 1. Auto-setting frequency: by designing a detector which will automatically detect the loading and provide a suitable frequency; 2. Manual setting: by conducting the four bits to control the frequency of the PWM for the purpose of time-efficiency and convenience which increases no extra cost while changing the frequency and can be easily manipulated as well. The main purpose of changing the frequency is to stabilize the variant of the ripple voltage in the same capacitance of different loadings. Therefore, the output of the ripple voltage can be decreased by changing the frequency according to the loadings.
其他識別: U0005-1508201114070800
Appears in Collections:電機工程學系所

Show full item record

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.