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Suyog Tamrakar

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General test procedure outlined below. Test with a substitute electrical load first, then test with the monitor. Record any problems/issues noticed. Test will be conducted in an ambient temperature of ~21°C.

  1. Test Voltage output (regulated ~19V)

    1. Voltage Ripples

  2. Test Input Voltage

    Test Lower and Upper end (8V and 16V

    (Draw diff amounts till max power)

  3. Voltage Ripples

  4. Test Current Draw ()

    1. Ensure at least 1A current draw as specified without heating issues

    2. Test Over-Current protection (draw ~10A)

    3. Ensure normal operation range (~20W) without heating issues

    4. Ensure max power range (~65W) with reasonable temperature ranges

Test Results

The voltage ripples were not significant. Test was conducted with a substitute electrical load first, and determined the module will require a cooling element (In-progress). Testing with monitor is also in-progress.

Power (W)

Current Draw (A)

Power Dissipated (W)

Junction Temperature (°C)

20 W

~1 A

1.05 W

38.8 °C

55 W

~3 A

2.39 W

69.4 °C

65 W

~3.6 A

3.42 W

72.4 °C

45 W

~3 A (over current protection applied)

2.39 W

69.4 °C

Thermal Consideration

To determine the optimal thermal cooling under the car’s condition, the ambient temperature of 40°C was selected. Calculations are as follows:

(Insert)