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Communications between a plug-in EV and the EV supply equipment

April 04, 2012 // Don Shaver, Texas Instruments // 0 comments

Communications between a plug-in EV and the EV supply equipment Download White Paper 236Ko

Texas Instruments (TI) leading power line communications (PLC) technology has enabled Cygnus Electronics to create a PLC hardware and software platform designed for automotive qualification in electric vehicles. Auto-rem implements the Society of Automotive Engineers’ (SAE) J2931-3 specification, which is a narrowband orthogonal frequency division multiplexing (OFDM) proposal for plug-in electric vehicle (PEV) to electric vehicle service equipment (EVSE) communications during PEV battery charging[1]. J2931-3 is based on the upcoming IEEE P1901.2 international narrowband OFDM standard. The auto-rem system uses a TI PLC chipset comprised of an optimized OFDM C2000™ Piccolo™ microcontroller (TMS320F28069)[2] and an integrated analog front end AFE031[3], which integrates more than 100 discrete devices.


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This month, Future Electronics has 20 of Intersil's ISL8203MEVAL2Z evaluation boards to give away to EETimes Europe's readers. Worth 95 US dollars, the board was designed to demonstrate the performance of the ISL8203M dual step-down power module which integrates a PWM controller, synchronous switching MOSFETs, inductors, and passives all in a 9.0x6.5x1.83mm package.

The ISL8203M is rated for dual 3A output current or 6A current sharing operation with an input range of 2.85V to 6V. Each of the two channels employs the current mode pulse width modulation scheme for fast transient response and pulse-by-pulse current limiting.

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