Title :
A digital pulse width modulator based on pulse shrinking mechanism
Author :
Chen, Poki ; Chen, Tuo-Kuang ; Hu, Hsiao-Tzu ; Peng, Yu-Han ; Chen, Yi-Jin
Author_Institution :
Dept. of Electron. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan
Abstract :
The first digital pulse width modulator based on pulse shrinking mechanism is proposed in this paper. With extremely simple structure, the operation frequency can reach 17 MHz and the chip size is 0.39 mm2 only in a TSMC 0.35 ¿m CMOS process. Under 8-bit realization, the integral nonlinearity is measured to be -0.6~+0.45% which is the smallest ever known.
Keywords :
CMOS integrated circuits; pulse width modulation; TSMC CMOS process; digital pulse width modulator; frequency 17 MHz; integral nonlinearity; pulse shrinking mechanism; realization; size 0.35 mum; storage capacity 18 bit; Counting circuits; Delay lines; Digital modulation; Frequency; Propagation delay; Pulse circuits; Pulse generation; Pulse width modulation; Space vector pulse width modulation; Voltage control;
Conference_Titel :
Power Electronics and Drive Systems, 2009. PEDS 2009. International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-4166-2
Electronic_ISBN :
978-1-4244-4167-9
DOI :
10.1109/PEDS.2009.5385803
