Title :
A Novel Piecewise Linear Slope Compensation Circuit in Peak Current Mode Control
Author :
Jiaying, Lu ; Xiaobo, Wu
Author_Institution :
Zhejiang Univ., Hangzhou
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;
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
DOI :
10.1109/EDSSC.2007.4450278
