Load Share Controller IC and Its Control Strategy Design

Author

Danyan, Zhang ; Xiaobo, Wu ; Menglian, Zhao ; Hai, Chen ; Xiaolang, Yan

Author_Institution

Inst. of VLSI Design, Zhejiang Univ., Hangzhou

fYear

2006

fDate

4-7 Dec. 2006

Firstpage

1379

Lastpage

1382

Abstract

To solve uneven distribution of load currents and thermal stresses among the paralleled power modules, a load share controller IC was proposed. By using the automatic master-slave control and the startup and adjustment control strategy, load current sharing among the paralleled modules was achieved. In addition, under-voltage detecting, load share bus short circuit prevention and fault protection were available for its use. The simulated and measured results showed that the control strategies were performed successfully. The load share error could be controlled within 1% and the system transient response was fast. After the optimization of its system, circuit and layout design, the IC was realized in 1.5mum BCD (bipolar-CMOS-DMOS) technology with an area of 3.6mm²

Keywords

CMOS integrated circuits; bipolar integrated circuits; fault diagnosis; integrated circuit design; short-circuit currents; 1.5 micron; adjustment control strategy; automatic master-slave control; bipolar-CMOS-DMOS technology; control strategy design; fault protection; load share controller IC; load share error; short circuit prevention; Automatic control; Circuit faults; Electrical fault detection; Fault detection; Master-slave; Multichip modules; Power system protection; Stress control; Thermal loading; Thermal stresses; Bipolar-CMOS-DMOS technology; automatic master-slave control; load share controller IC; parallel system;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on

Conference_Location

Singapore

Print_ISBN

1-4244-0387-1

Type

conf

DOI

10.1109/APCCAS.2006.342457

Filename

4145657