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A Wide Output Range, High Power Efficiency Reconfigurable Charge Pump in 0.18 mm BCD process
Park, Hyung-Gu,Jang, Jeong-A,Cho, Sung Hun,Lee, Juri,Kim, Sang-Yun,Tiwari, Honey Durga,Pu, Young Gun,Hwang, Keum Cheol,Yang, Youngoo,Lee, Kang-Yoon,Seo, Munkyo The Institute of Electronics and Information Engin 2014 Journal of semiconductor technology and science Vol.14 No.6
This paper presents a wide output range, high power efficiency reconfigurable charge pump for driving touch panels with the high resistances. The charge pump is composed of 4-stages and its configuration automatically changes based on the required output voltage level. In order to keep the power efficiency over the wide output voltage range, internal blocks are automatically activated or deactivated by the clock driver in the reconfigurable charge pump minimizing the switching power loss due to the On and Off operations of MOSFET. In addition, the leakage current paths in each mode are blocked to compensate for the variation of power efficiency with respect to the wide output voltage range. This chip is fabricated using $0.18{\mu}m$ BCD process with high power MOSFET options, and the die area is $1870{\mu}m{\times}1430{\mu}m$. The power consumption of the charge pump itself is 79.13 mW when the output power is 415.45 mW at the high voltage mode, while it is 20.097 mW when the output power is 89.903 mW at the low voltage mode. The measured maximum power efficiency is 84.01 %, when the output voltage is from 7.43 V to 12.23 V.
Poster Session 1 : Role of carboxy-terminus of p23 in the regulation of its physiological functions
( Sang Hyeok Woo ),( Sung Kwan An ),( Hyeon Ok Jin ),( Hyung Chahn Lee ),( Sung Keum Seo ),( Doo Hyun Yoo ),( Chang Hun Rhee ),( Seok Il Hong ),( In Chul Park ) 생화학분자생물학회 2005 생화학분자생물학회 춘계학술발표논문집 Vol.2005 No.-
Combined Cis-platinum and Alpha Interferon Therapy of Advanced Hepatocellular Carcinoma
( Sang Keun Ji ),( Neung Hwa Park ),( Hyun Mook Choi ),( Young Woo Kim ),( Sin Hwa Lee ),( Keum Hee Lee ),( Su Yul Ahn ),( Sang Uk Lee ),( Byung Hoon Han ),( Byung Chae Park ) 대한내과학회 1996 The Korean Journal of Internal Medicine Vol.11 No.1