Design and Safety Verification of a Distributed Charge Equalizer for Modular Li-Ion Batteries

Baronti, Federico; Bernardeschi, Cinzia; Cassano, Luca; Domenici, Andrea; Roncella, Roberto; Saletti, Roberto

doi:10.1109/tii.2014.2299236

Cited by 48 publications

(28 citation statements)

References 28 publications

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“…The control electronic part utilizes a core voltage than ranges from 1.8V to 5V depending on the utilized technology whereas the power electronics work with voltages of several hundreds of volts. A similar topology also applies to battery monitoring systems in smart battery systems [9] [10]. To enable data transmission between these two parts a galvanically isolated interface has to be applied.…”

Section: A Galvanic Isolationmentioning

confidence: 99%

Galvanically isolated differential data transmission using capacitive coupling and a modified Manchester algorithm for smart power converters

Niedermeier

Wenger

Filimon

et al. 2014

2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE)

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In this paper, a method for encoding and decoding digital data signals using a modified form of the standard Manchester code for the application in galvanically isolated data transmission in smart power electronics is described. The method includes a modified encoder circuit and a matching decoder circuit that is able to rebuild the original clock and data signal without a separate transmission of the clock signal. A capacitive coupling element with a corresponding signal conditioning circuit was placed between the encoder and decoder circuit to achieve a galvanic isolation between the primary side that processes the data signals and the secondary side that is responsible for the processing of power in smart power devices. After a description of basic principles of the transmission of data over a galvanic isolation and the state-of-the-art of Manchester code based data transmission, the encoding and decoding process of the modified Manchester code is elaborated and experimental results are presented

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Section: A Galvanic Isolationmentioning

confidence: 99%

Galvanically isolated differential data transmission using capacitive coupling and a modified Manchester algorithm for smart power converters

Niedermeier

Wenger

Filimon

et al. 2014

2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE)

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“…SAL has been used for "traditional" formal functional verification of hardware and software systems [9], [10] and protocols [11] as well as for the untestability analysis and automatic test pattern generation of SEUs in the configuration memory of SRAM-based FPGA systems [12], [13].…”

Section: The Sal Environmentmentioning

confidence: 99%

Early assessment of SEU sensitivity through untestable fault identification

Cassano

Guzmán-Miranda

Aguirre

2014

2014 IEEE 20th International on-Line Testing Symposium (IOLTS)

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Modern digital circuits are, with each technological evolution, increasingly affected by Single Event Upsets (SEUs). In this paper we propose a static analysis approach for the estimation of the SEU sensitivity of the system under design by identifying untestable faults. The approach relies on a formal specification language to model circuits at the gate-level and on the Linear Temporal Logic (LTL) to express untestability properties that are then evaluated using a model-checking tool. The proposed approach can be applied early during the design process, since it can be individually applied to sub-systems as soon as they are designed, before the whole system is implemented and since it does not require a specific workload to be defined. The approach has been implemented and applied to a set of circuits from the ITC99 benchmark and has been validated against fault injection experiments.

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“…1(b). This method is based on two voltage sources (battery and capacitor) connected in parallel, which results in a large inrush current due to a large voltage difference between battery and capacitor [2]- [5], [16]- [18], [20]- [22], [24], [25].…”

Section: Introductionmentioning

confidence: 99%

“…However, its can not provide energy to more than one battery at the same time. In addition, the cost is high if the system uses electrical relays as the selective switches [5], [6], [8], [17], [20].…”

Section: Introductionmentioning

confidence: 99%

“…Although it uses only one magnetic core and fewer active switches, the implementation is complicated with a lot of batteries in the pack. Hence, the multi-winding transformer type can be replaced by multiple transformers type for simple modularization [2], [4], [5], [7], [16]- [21], [25]- [27]. From the above discussions, the non-dissipative equalizers are well-suited for the applications of EV's batteries.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Charge Equalizer With a Combination of APWM and PFM Control Based on a Modified Half-Bridge Converter

Hua

Fang

2016

IEEE Trans. Power Electron.

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A charge equalizer with a combination of asymmetrical pulse-width-modulation (APWM) and pulse-frequency-modulation (PFM) control based on a modified half-bridge converter for electric vehicles (EVs) is proposed in this paper. The reliability of the charge equalizer can be improved because the split capacitors are not required and the soft-switching of power switches can be achieved by the proposed control. In addition, with the proposed rectification, the number of bridge-rectifiers at the secondary-side of the transformer can be reduced by half, which also cuts the cost and conduction loss by half. The circuit topology, operation analysis and control strategy of the proposed charge equalizer are described in detail. Finally, the experimental results are provided to verify the feasibility and performance of the proposed charge equalizer.

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Design and Safety Verification of a Distributed Charge Equalizer for Modular Li-Ion Batteries

Cited by 48 publications

References 28 publications

Galvanically isolated differential data transmission using capacitive coupling and a modified Manchester algorithm for smart power converters

Galvanically isolated differential data transmission using capacitive coupling and a modified Manchester algorithm for smart power converters

Early assessment of SEU sensitivity through untestable fault identification

A Charge Equalizer With a Combination of APWM and PFM Control Based on a Modified Half-Bridge Converter

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