TY - GEN
T1 - An on-chip soft-start technique of current-mode DC-DC converter for biomedical applications
AU - Kim, Dong Seok
AU - Kim, Jungmoon
AU - Kim, Jihwan
AU - Kim, Chulwoo
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2010
Y1 - 2010
N2 - 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-μm process and occupies an active area of 0.19 mm2 with a 3.3 V supply voltage.
AB - 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-μm process and occupies an active area of 0.19 mm2 with a 3.3 V supply voltage.
KW - Inrush current
KW - biomedical applications
KW - current mode DC-DC buck converter
KW - soft-start
KW - stable start-up
UR - http://www.scopus.com/inward/record.url?scp=79959229969&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79959229969&partnerID=8YFLogxK
U2 - 10.1109/APCCAS.2010.5775038
DO - 10.1109/APCCAS.2010.5775038
M3 - Conference contribution
AN - SCOPUS:79959229969
SN - 9781424474561
T3 - IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS
SP - 500
EP - 503
BT - Proceedings of the 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
T2 - 2010 Asia Pacific Conference on Circuit and System, APCCAS 2010
Y2 - 6 December 2010 through 9 December 2010
ER -