Test Method

  • Start-up Time, Rise Time, and Hold-up Time

     

    1.Start-up Time:

    The time required for the output voltage to reach 90% of its set value after the input voltage is applied.

    2.Rise Time:

    The time required for the output voltage to reach from 10% to 90% of its set value.

    3.Hold-up Time:

    The time as the AC input was declined but the output voltage remains regulation for a period of time.

  • AC discharge test

     

    Measurement of voltage of stored charge 1 second after disconnection of mains plug.

     

  • Transient Response

     

      The time needed for an output voltage to be within specified exactness limits after a step change in line or load situations.

  • Ripple & Noise

     

      The amplitude of the AC component of the DC output of a power supply usually showed in millivolts peak-to-peak or rms. For a liner power supply it is usually at the frequency of the AC mains. For a switching power supply, it is normally at the switching frequency of the converter stage.

     

  • Classification of Applied Parts

     

    Type B  – No electrical contact with Patient and maybe earthed

    Type BF  – Electrically connected to Patient but not directly to heart

    Type CF  – Electrically connected to the heart of the Patient.

  • MOOP & MOPP

     

      Means of Patient Protection (MOPP) and Means of Operator Protection (MOOP). It is the responsibility of the medical product manufacturer to determine the likelihood of a patient coming into contact, and decide whether patient protection (MOPP) or operator protection (MOOP) to use.

  • Ground Continuity Test

     

      Determining effectiveness of “ground” grids and connections that are used with the power device to protect personnel and equipment.

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