Title :
Fast Transient DC-DC Converter with On-Chip Compensated Error Amplifier
Author :
Huang, Hong-Wei ; Ho, Hsin-Hsin ; Chien, Chieh-Ching ; Chen, Ke-Horng ; Ma, Gin-Kou ; Kuo, Sy-Yen
Author_Institution :
Graduate Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei
Abstract :
A novel fast transient DC-DC converter with on-chip compensated error amplifier is presented in this paper. The error amplifier uses on-chip current-mode Miller capacitor to replace a large off-chip capacitor. Only three transistors and one voltage follower are used to implement this novel architecture. Not only on-chip compensated error amplifier is implemented without off-chip components and I/O pins, but also it can have fast transient response. Furthermore, we accurately decrease the transient response time without suffering from the oscillation issue. Experimental results demonstrate the stability and the fast transient response of the DC-DC converters
Keywords :
DC-DC power convertors; amplifiers; capacitors; current-mode circuits; power electronics; transient response; DC-DC converter; current-mode Miller capacitor; off-chip capacitor; on-chip compensated error amplifier; transient response; Capacitors; Circuits; DC-DC power converters; Error correction; Load management; Pins; Switches; Time factors; Transient response; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European
Conference_Location :
Montreux
Print_ISBN :
1-4244-0303-0
DOI :
10.1109/ESSCIR.2006.307596
