Paper Info
Title
An On-Chip Soft-Start Technique Of Current-Mode Dc-Dc Converter For Biomedical Applications
Abstract
A compact soft-start technique, with an internal circuitry, is presented for the start-up of current mode DC-DC converters for biomedical applications. Examples of medical applications in DC-DC converters include bio-patch, wireless medical sensor node, RFID applications and medical instruments that must have a high stability. To achieve this, a soft-start circuit is proposed to prevent inrush current and output voltage overshoot, during the start-up of the current mode DC-DC converters. The output of the error amplifier is controlled by a stair-case waveform signal generator during the start-up period. The proposed soft-start circuit is fully integrated on chip for portable and wireless medical devices, so that the external components are not required, leading to a reduction in the PCB space and cost. The new soft-start circuit which is digitally-controlled unlike conventional ones was fabricated in a CMOS 0.35-mu m process and occupies an active area of 0.19 mm(2) with a 3.3 V supply voltage.
Year
DOI
Venue
2010
10.1109/APCCAS.2010.5775038
PROCEEDINGS OF THE 2010 IEEE ASIA PACIFIC CONFERENCE ON CIRCUIT AND SYSTEM (APCCAS)
Keywords
Field
DocType
Inrush current, stable start-up, soft-start, current mode DC-DC buck converter, biomedical applications
Sensor node,Capacitor,Inrush current,Computer science,Voltage,Waveform,CMOS,Converters,Electronic engineering,Motor soft starter,Electrical engineering
Conference
Citations 
PageRank 
References 
0
0.34
1
Authors
4
Name
Order
Citations
PageRank
Dong Seok Kim1112.27
Jungmoon Kim28110.73
Jihwan Kim319735.10
Chulwoo Kim439774.58