论文信息 - A novel current-mode boost converter with depletion-mode MOSFET

A novel current-mode boost converter with depletion-mode MOSFET

A compact current-mode boost converter for battery-operated portable devices is presented in this paper. With the help of depletion-mode MOSFET, the chip's volume reduces and input voltage extends from 2.5V to 10V. Using a 0.5µm BCD process, the maximum efficiency of this converter can reach 90% at fixed frequency 1.4MHz. In addition, a single input error amplifier and dead-time control circuit for this design are proposed in the paper. The simulation results and measures verify the function of the proposed structure.

Bo Zhang | Ming Qiao | Pengming Cheng

[1] R. D. Middlebrook,et al. Modeling current-programmed buck and boost regulators , 1989 .

[2] R.D. Middlebrook,et al. Modelling and analysis of switching DC-to-DC converters in constant-frequency current-programmed mode , 1979, 1979 IEEE Power Electronics Specialists Conference.

[3] Charles R. Sullivan,et al. DC Power Supply Design in Portable Systems , 1995 .

[4] Mi-Young Kim,et al. BD180 - a new 0.18 μm BCD (Bipolar-CMOS-DMOS) Technology from 7V to 60V , 2008, 2008 20th International Symposium on Power Semiconductor Devices and IC's.

[5] Robert G. Meyer,et al. Analysis and Design of Analog Integrated Circuits , 1993 .

[6] P.K.T. Mok,et al. A monolithic current-mode CMOS DC-DC converter with on-chip current-sensing technique , 2004, IEEE Journal of Solid-State Circuits.

[7] Robert W. Erickson,et al. Fundamentals of Power Electronics , 2001 .

[8] P.K.T. Mok,et al. A 1-V integrated current-mode boost converter in standard 3.3/5-V CMOS technologies , 2005, IEEE Journal of Solid-State Circuits.