SEMICONDUCTOR INTEGRATED CIRCUITS

A high EMS daisy-chain SPI interface for battery monitor system

Qidong Zhang, Yintang Yang and Changchun Chai

+ Author Affiliations

 Corresponding author: Yintang Yang,Email:yangyt@xidian.edu.cn

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Abstract: A high EMS current-mode SPI interface for battery monitor IC (BMIC) is presented to form a daisy-chain bus configuration for the cascaded BMICs and the communication between the MCU and master BMIC. Based on analog and digital mixed filtering technique, the proposed daisy-chain can avoid the isolated communication issue in electromagnetic interference environment, and reduce the extensively required I/O ports of MCU, at the same time reduce the system cost. The proposed daisy-chain interface was introduced in a 6-ch battery monitor IC which was fabricated with 0.35 μm 30 V BCD process. The measurement result shows that the presented daisy-chain SPI interface achieves better EMS performance with different EMI injection while just consuming a total operation current up to 1 mA.

Key words: SPIdaisy-chainEMSEMIbattery monitorbattery management



[1]
Noda N. 21st century cars and ICs. 2000 IEEE International Solid-State Circuits Conference, 2000:12
[2]
Leens F. An introduction to I2C and SPI protocols. IEEE Instrumentation & Measurement Magazine, 2009, 12(1):8
[3]
Hanabusa B R. Application Notes. Comparing JTAG, SPI, and I2C. 2007
[4]
Affanni A, Bellini A, Franceschini G, et al. Battery choice and management for new-generation electric vehicles. IEEE Trans Industrial Electron, 2005, 52(5):1343 doi: 10.1109/TIE.2005.855664
[5]
Techcon A. Using bullet-proof isoSPI data links to boost batterymanagement systems. Eetimes Com, 2013 http://www.edn.com/Pdf/ViewPdf?contentItemId=4405854
[6]
Estl H. Application Notes, SPI interface and use in a daisy-chain bus configuration. 2002
[7]
Intersil:Application Notes, SPI Protocol and Bus Configuration of Multiple DCPs. 2007
[8]
Wang X, Zhang H, Zhang L, et al. A daisy-chain SPI interface in a battery voltage monitoring IC for electric vehicles. IEEE International Conference on Solid-State and Integrated Circuit Technology, 2014:1 https://www.researchgate.net/publication/301411862_A_daisy-chain_SPI_interface_in_a_battery_voltage_monitoring_IC_for_electric_vehicles
[9]
Berenbaum A, Marando E, Wahler R. Point-to-point serial peripheral interface for data communication between devices configured.d in a daisy-chain. US patent, 20130297829, 2013
[10]
Murtaza D R, Pottbaecker A. Serial peripheral interface daisy chain communication with an in-frame response. US patent, US20160098371, 2016
[11]
Emori A, Kikuchi M, Kudou A, et al. Battery control circuit using non-isolation daisy-chain architecture for a 400 V Li-ion battery system of a hybrid electric vehicle. Vehicle Power and Propulsion Conference, 2008:1
[12]
Chen C L, Wang D S, Li J J, et al. A voltage monitoring IC with HV multiplexer and HV transceiver for battery management systems. IEEE Trans Very Large Scale Integration Systems, 2015, 23(2):244 doi: 10.1109/TVLSI.2014.2303989
[13]
Kadirvel K, Carpenter J, Huynh P, et al. A stackable, 6-cell, Liion, battery management IC for electric vehicles with 13, 12-bit ADCs, cell balancing, and direct-connect current-mode communications. IEEE J Solid-State Circuits, 2014, 49(4):928 doi: 10.1109/JSSC.2014.2300861
[14]
Li Y, Lai X, Qiang Y, et al. High efficiency and low electromagnetic interference boost DC-DC converter. J Semicond, 2014, 35(4):034012 http://www.cnki.com.cn/Article/CJFDTotal-BDTX201404016.htm
[15]
Guo H Y, Chen Z, Zhang B, et al. Anadvanced monolithic digitalized random carrier frequency spread-spectrum clock generator for EMI suppression. J Semicond, 2010, 31(6):128 http://www.oalib.com/paper/1520614
Fig. 1.  A typical view of daisy-chain SPI communication interface.

Fig. 2.  The proposed high voltage multiplexer.

Fig. 3.  The current-mode daisy-chain circuit for CS, SCLK and SDI.

Fig. 4.  The current-mode daisy-chain circuit for SDO.

Fig. 5.  Micrograph of fabricated multiplexer in (a) BMI and (b) daisy-chain details.

Fig. 6.  (Color online) (a) Four BMICs connection for SPI EMS measurement. (b) Environment EMI situation. (c) Freq = 136 MHz, with 2 m distance, 5 W interphone. (d) Freq = 172 MHz, with 2 m distance, 5 W interphone.

Table 1.   Comparison of this work with published literature.

ParameterRef. [8]Ref. [10]Ref. [12]This work
Commun. ProtocolSPI4-Wire3-WireSPI
Max Commun. Speed (MHz)≤1<35<18N.A≤2
Full mode Power Consumption4 mA10.1 mW1.2 mA1 mA
EMS abilityN.A*N.A*N.A*~10 V/m
Area (mm2)0.720.282N.A0.218
* no information
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[1]
Noda N. 21st century cars and ICs. 2000 IEEE International Solid-State Circuits Conference, 2000:12
[2]
Leens F. An introduction to I2C and SPI protocols. IEEE Instrumentation & Measurement Magazine, 2009, 12(1):8
[3]
Hanabusa B R. Application Notes. Comparing JTAG, SPI, and I2C. 2007
[4]
Affanni A, Bellini A, Franceschini G, et al. Battery choice and management for new-generation electric vehicles. IEEE Trans Industrial Electron, 2005, 52(5):1343 doi: 10.1109/TIE.2005.855664
[5]
Techcon A. Using bullet-proof isoSPI data links to boost batterymanagement systems. Eetimes Com, 2013 http://www.edn.com/Pdf/ViewPdf?contentItemId=4405854
[6]
Estl H. Application Notes, SPI interface and use in a daisy-chain bus configuration. 2002
[7]
Intersil:Application Notes, SPI Protocol and Bus Configuration of Multiple DCPs. 2007
[8]
Wang X, Zhang H, Zhang L, et al. A daisy-chain SPI interface in a battery voltage monitoring IC for electric vehicles. IEEE International Conference on Solid-State and Integrated Circuit Technology, 2014:1 https://www.researchgate.net/publication/301411862_A_daisy-chain_SPI_interface_in_a_battery_voltage_monitoring_IC_for_electric_vehicles
[9]
Berenbaum A, Marando E, Wahler R. Point-to-point serial peripheral interface for data communication between devices configured.d in a daisy-chain. US patent, 20130297829, 2013
[10]
Murtaza D R, Pottbaecker A. Serial peripheral interface daisy chain communication with an in-frame response. US patent, US20160098371, 2016
[11]
Emori A, Kikuchi M, Kudou A, et al. Battery control circuit using non-isolation daisy-chain architecture for a 400 V Li-ion battery system of a hybrid electric vehicle. Vehicle Power and Propulsion Conference, 2008:1
[12]
Chen C L, Wang D S, Li J J, et al. A voltage monitoring IC with HV multiplexer and HV transceiver for battery management systems. IEEE Trans Very Large Scale Integration Systems, 2015, 23(2):244 doi: 10.1109/TVLSI.2014.2303989
[13]
Kadirvel K, Carpenter J, Huynh P, et al. A stackable, 6-cell, Liion, battery management IC for electric vehicles with 13, 12-bit ADCs, cell balancing, and direct-connect current-mode communications. IEEE J Solid-State Circuits, 2014, 49(4):928 doi: 10.1109/JSSC.2014.2300861
[14]
Li Y, Lai X, Qiang Y, et al. High efficiency and low electromagnetic interference boost DC-DC converter. J Semicond, 2014, 35(4):034012 http://www.cnki.com.cn/Article/CJFDTotal-BDTX201404016.htm
[15]
Guo H Y, Chen Z, Zhang B, et al. Anadvanced monolithic digitalized random carrier frequency spread-spectrum clock generator for EMI suppression. J Semicond, 2010, 31(6):128 http://www.oalib.com/paper/1520614
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    Received: 12 July 2016 Revised: 06 September 2016 Online: Published: 01 March 2017

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      Qidong Zhang, Yintang Yang, Changchun Chai. A high EMS daisy-chain SPI interface for battery monitor system[J]. Journal of Semiconductors, 2017, 38(3): 035002. doi: 10.1088/1674-4926/38/3/035002 Q D Zhang, Y T Yang, C C Chai. A high EMS daisy-chain SPI interface for battery monitor system[J]. J. Semicond., 2017, 38(3): 035002. doi: 10.1088/1674-4926/38/3/035002.Export: BibTex EndNote
      Citation:
      Qidong Zhang, Yintang Yang, Changchun Chai. A high EMS daisy-chain SPI interface for battery monitor system[J]. Journal of Semiconductors, 2017, 38(3): 035002. doi: 10.1088/1674-4926/38/3/035002

      Q D Zhang, Y T Yang, C C Chai. A high EMS daisy-chain SPI interface for battery monitor system[J]. J. Semicond., 2017, 38(3): 035002. doi: 10.1088/1674-4926/38/3/035002.
      Export: BibTex EndNote

      A high EMS daisy-chain SPI interface for battery monitor system

      doi: 10.1088/1674-4926/38/3/035002
      Funds:

      Project supported by the National Natural Science Foundation of China (No.61334003)

      Project supported by the National Natural Science Foundation of China No.61334003

      More Information
      • Corresponding author: Yintang Yang,Email:yangyt@xidian.edu.cn
      • Received Date: 2016-07-12
      • Revised Date: 2016-09-06
      • Published Date: 2017-03-01

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