Investigation of noise conditions

SubTitleIcon6  Investigation of noise conditions

The initial noise conditions were confirmed and the types of noise were isolated.

Noise was measured for the following three patterns.
・Conducted noise (150 kHz to 108 MHz)
・Radiated noise (150 kHz to 30 MHz)
・Radiated noise (30 kHz to 300 MHz)


  • Confirmation of noise conditions without measures to suppress noise


  • Investigation of conduction mode of problematic noise (1)
    - Conducted noise -

The conduction mode (common mode or normal mode) of problematic conducted noise was investigated.



  • Investigation of conduction mode of problematic noise (2)
    - Radiated noise (150 kHz to 30 MHz) -

The conduction mode (common mode or normal mode) of problematic radiated noise was also investigated. (150 kHz to 30 MHz band)



  • Investigation of conduction mode of problematic noise (3)
    - Radiated noise (30 MHz to 300 MHz) -

The conduction mode (common mode or normal mode) of problematic radiated noise was investigated. (30 MHz to 300 MHz band)


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