Title :
A Novel Error Amplifier Used in Power Management ICs
Author :
Fei, Gong ; Xiaobo, Wu ; Xiaolang, Yan
Author_Institution :
Inst. of VLSI Design, Zhejiang Univ., Hangzhou
Abstract :
To meet the requirements of power management ICs such as PWM controller and APFC, a 90dB error amplifier with a unity frequency of above 10MHz was proposed and realized. The supply voltage of the amplifier was between 12V and 18V. And its layout design was also discussed. The highlights in the amplifier architecture lay in its special BCD technology especially the use of bipolar transistors. Besides, its power efficient strategies were also analyzed and discussed in detail
Keywords :
power amplifiers; power factor correction; power supply circuits; 12 to 18 V; APFC; PWM controller; error amplifier; power management IC; Bipolar transistors; Circuits; Energy management; Equations; Error correction; Frequency; Power amplifiers; Pulse amplifiers; Pulse width modulation; Voltage;
Conference_Titel :
Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0160-7
Electronic_ISBN :
1-4244-0161-5
DOI :
10.1109/ICSICT.2006.306446
