Conducted susceptibility assessment of music infotainment system

Abstract

Today is the world of dense EMI environment. Therefore, all the electronic equipments are constantly being exposed to EMI. While the installation of any electronic equipment, wiring may act as receiving antenna for RF signals, which may result in impairment of its operation. EMI such as lightning, electromagnetic pulses, transients, RF noise, etc get coupled to a product directly through its AC/DC power lines and input/output lines. Therefore, to protect the devices from breaking down in the presence of such interferences, there is a need for them to undergo Conducted Susceptibility testing. Music infotainment system usually installed in our vehicles may also get affected by RF noise and transients. This paper mainly lays emphasis on Conducted Susceptibility testing of Music Infotainment System conducted at General Industrial Control, Pune, India test laboratory. This model with and without RFI filter was tested for Conducted Susceptibility where transient glitch of ± 100V, 1 µs was generated and RF input of 5V and 1V RMS for a sweep of frequency band 100 KHz to 250MHz and 250 MHz to 410 MHz respectively was connected to the power supply line. Observations for any malfunctioning in the operation of equipment were made.