RadiMation Application Note 120
How to measure the HV-LV coupling attenuation[edit]
This RadiMation® application note explains how the high-voltage (HV) to low-voltage (LV) Coupling attenuation can be measured with RadiMation®. This HV-LV coupling attenuation is needed for several automotive standards, for example the BMW GS 950002-3:2015-12.
Measurement of HV-LV coupling attenuation[edit]
The title of the BMW GS 95002-3 is: Motor Vehicles Electromagnetic Compatibility (EMC) Requirements and tests on components above 60 V nominal voltage.
The HV-LV coupling attenuation measurement as it is described in that standard, has the purpose to determine the coupling between the high voltage components (above 60 V) to the low voltage system of a motor vehicle. This measurement can be done with two different methods:
- using a Vector Network Analyzer
- using a signal generator, amplifier and spectrum analyzer
In this application not we will explain how to perform the measurement using the signal generator method, because those type of equipments are more available.