I2C 슬래이브 칩의 주소 설정을 위한 RC회로를 이용한 효과적인 아날로그-디지털 변환기 설계

Title
I2C 슬래이브 칩의 주소 설정을 위한 RC회로를 이용한 효과적인 아날로그-디지털 변환기 설계
Other Titles
A Design of Effective Analog-to-Digital Converter Using RC Circuit for Configuration of I2C Slave Chip Address
Author(s)
성광수이무진
Keywords
I2C; Chip Configuration; ADC; LED BLU Drive Circuit; I2C; Chip Configuration; ADC; LED BLU Drive Circuit
Issue Date
201206
Publisher
한국조명.전기설비학회
Citation
조명.전기설비학회논문지, v.26, no.6, pp.87 - 93
Abstract
In this paper, we propose an analog-to-digital converter to set the address of a I2C slave chip. The proposed scheme converts a fixed voltage between 0 and VDD to the digital value which can be used as the address of the slave chip. The rising time and the falling time are measured with digital counter in a serially connected RC circuit, while the circuit is being charged and discharged with the voltage to be measured. The ratio of the two measured values is used to get the corresponding digital value. This scheme gives a strong point which is to be implementable all the parts except comparator using digital logic. Although the method utilizes RC circuit, it has no relation with the RC value if the quantization error is disregarded. Experimental result shows that the proposed scheme gives 32-level resolution thus it can be used to configure the address of the I2C slave chip.
URI
http://hdl.handle.net/YU.REPOSITORY/27873
ISSN
1229-4691
Appears in Collections:
공과대학 > 전자공학과 > Articles
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