On the implemenation of CAN buses to battery management systems

Hsu, Chung-Hsien; Chang, Kun-Chun; Ou, Yang-Chieh; Liao, Kuan-Yuen; Wey, Chin‐Long

doi:10.1109/mwscas.2011.6026561

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…The voltage domains of monitoring ICs in the cascaded chain are different, resulting in a big challenge to design the data bus interface among the cascaded ICs. The previous works [4,5] use the optocoupler as the isolated interface. But the high power consumption, low integration, low speed (the data rate is generally less than 1Mbps) and degradation of light emitting diode (LED) limit its application.…”

Section: Introductionmentioning

confidence: 99%

A battery monitoring IC with an isolated communication interface for electric vehicles

Wang¹,

Zhao

Chen

2018

IEICE Electron. Express

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This paper presents a Li-ion battery monitoring and protection IC suitable for monitoring 12 battery cells for electric vehicles (EVs). A two-wire, transformer based, isolated interface is proposed to provide the interface for the cascaded ICs. The interface uses the "balanced" two-wire technology and encodes the four SPI signals into DC-free pulse that can be coupled by a transformer, which features high-speed, low electromagnetic interference (EMI), and reliable data transmission. The IC was fabricated in a 0.18 μm , 60V BCD process, with a total chip area of 4.4×3.6 mm 2 .Measurement results show that the proposed interface can achieve a data rate up to 1Mbps. Meanwhile, the measured current consumption is less than 45 μA in sleeping mode.

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Section: Introductionmentioning

confidence: 99%