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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 setup to minimize input voltage ripples.

  • Cout will be a 3x22uF 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 Over-Voltage protection

  2. Test Input Voltage

    1. Voltage Ripples

  3. Test Current Draw (1A)

    1. Ensure at least 1A current draw as specified

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

  4. Check for overheating under load

    1. Monitor temp while testing

    2. (Optional) Over-temperature protection

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