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Circuit protection solutions target new vehicle trends

Posted: 11 Aug 2011 ?? ?Print Version ?Bookmark and Share

Keywords:hybrid? electric vehicles? fuel economy?

The Bluetooth standard has created new market opportunities for mobile electronic devices that can interact with the vehicle and its systems, such as cell phones, MP3 players and navigation equipment. Protecting exposed communication interfaces from electrostatic discharge (ESD) and other voltage surges induced through the antenna and the instrument's wireless (RF) interface is a critical design issue.

In this report
??Greener, lighter designs
??Alternative power systems
?? Migration to power electronic functions
??The connected car
??Down the road

Figure 5 shows how a polymer-enhanced Zener diode (PolyZen device) helps protect the power input to the Bluetooth module. The device provides integrated overcurrent and overvoltage circuit protection. Low-capacitance polymer ESD (PESD) devices are also used here to help protect the antenna against damage caused by ESD surges.

Circuit protection solution

Figure 5: Typical circuit protection solution for Bluetooth modules.

Down the road
The increased number of power components and high-data-rate connections in automotive designs has created a greater need for reliable, cost-effective circuit protection solutions. TE Connectivity' research, design and application engineering teams are collaborating with automakers, integrators and OEMs to develop the components required to advance a variety of new technologies, support emerging applications, and help automakers meet stringent safety standards.

- Tony Cilluffo
?? Business development manager
?? TE Circuit Protection business unit

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