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Txema
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re: Hybrid and electric vehicles pose electric/magnetic isolation challenges
Txema   4/7/2011 8:01:12 AM
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Has anyone thought about mechanics? Will they have to get an engineering degree to be able to repair a car without geting an electric shock? Even if they pay attention to safety, isolation can be very tricky. They will need good knowledge about clearances, not to let their hammers over conductors, and so on. In my opinion, this way had to be paved from the very begining... i.e. from now on.

GREATTerry
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re: Hybrid and electric vehicles pose electric/magnetic isolation challenges
GREATTerry   11/9/2010 2:00:09 AM
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Cost I think is the main obstacle to what isolation solution can be adopted in EV/HEV. I agree with "hm" that new methodology should be used in order to tackle the EMI and safety issue in such high voltage system usually found in those vehicles. It is nice to see good capacitive isolation device being built but I just wonder if inductive isolation can be power efficient. It is true that inductive isolation may be affected by EMI but maybe some smart guys can think about some better way to get around it.

prabhakar_deosthali
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re: Hybrid and electric vehicles pose electric/magnetic isolation challenges
prabhakar_deosthali   10/18/2010 6:15:15 AM
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Electric and Hybrid cars may be a new thing but Electric trains ( especially metros) have been running with crowded capacities all over the world for almost half a century now. Thes metros run on High voltages carried by the overhead wires. The passenger safety models and signal isolation techniques applied in these areas can be taken as a model for these newer generation Hybrid and Electric Vehicles. Only problem will be cost , since these new generation vehicles or personal use vehicles.

_hm
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re: Hybrid and electric vehicles pose electric/magnetic isolation challenges
_hm   10/15/2010 5:19:44 PM
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There are few different topologies for signal isolations mainly derived for employed in instrumentation industry. However, need for isolation in automotive electronics may require innovative solutions and it opens new field for research, development and new product introductions. New techniques to be derived must be failsafe for both passenger and vehicle. Also they may need to prepare universal recommended practice standard for isolation requirement in this industry. New test and measurement procedures and instruments will also be required for maintenance of new generation of autos. Soon, we may see new breed of ICs with isolation included on same substrate.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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