A Novel Piecewise Linear Slope Compensation Circuit in Peak Current Mode Control

Author

Jiaying, Lu ; Xiaobo, Wu

Author_Institution

Zhejiang Univ., Hangzhou

fYear

2007

fDate

20-22 Dec. 2007

Firstpage

929

Lastpage

932

Abstract

To solve the excessive compensation problem that affects the performances of the peak current mode (PCM) controlled converter system, a novel slope compensation circuit named piecewise linear slope compensation was proposed, which provides compensation signals with different slopes according to different duty cycles. The design principles were introduced and the practical circuit was composed and optimized at length. The piecewise linear slope compensation circuit was designed and simulated in 1.5 mum HV BCD process. Simulation results were consistent with expectations well, which showed that the circuit has greatly improved the output current capacity and transient response of the DC/DC power supply system.

Keywords

current-mode circuits; piecewise linear techniques; power convertors; DC-DC power supply system; peak current mode controlled converter; piecewise linear slope compensation circuit; Circuit simulation; Control systems; Design optimization; Inductors; Open loop systems; Phase change materials; Piecewise linear techniques; Pulse width modulation; Transient response; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices and Solid-State Circuits, 2007. EDSSC 2007. IEEE Conference on

Conference_Location

Tainan

Print_ISBN

978-1-4244-0637-1

Electronic_ISBN

978-1-4244-0637-1

Type

conf

DOI

10.1109/EDSSC.2007.4450278

Filename

4450278