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  • An ABXS002A3 Boost converter (max 65W) has been selected to convert the regulated 12V to a 19V with at least 1A output required by the monitor.

The following converter has been selected due to it’s high efficiency of 95%, and a relatively small footprint. Further cooling through heat sink or air flow may be required.

  • RTune and CTune are not needed as output ripples are not significant enough for our application.

  • RTrim has been selected to be 14kΩ to provide a regulated 18.6V output.

  • Cin will be 3x10uF (rated for 25V) setup to minimize input voltage ripples.

  • Cout will be a 3x22uF (rated for 35V) setup (possibly a 6x10uF) to minimize output voltage ripples.

Test Procedure (In-progress)

General test procedure outlined below. Test with a substitute electrical load first, then test with the monitor. Record any problems/issues noticed.

  1. Test Voltage output (regulated ~19V)

    1. Voltage Ripples

  2. Test Input Voltage

    1. Test Lower and Upper end (8V and 16V)

    2. Voltage Ripples

  3. 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 was conducted with a substitute load, will require a cooling element (In-progress). Testing with monitor is also in-progress.

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