摘要 |
A power supply system includes an adapter to receive power from a power source, and output a regulated output voltage (V<SUB>out</SUB>). A tip receives V<SUB>out </SUB>from the adapter, and output V<SUB>out </SUB>to an electronic device. The tip includes active circuitry to adjust a programming voltage (V<SUB>prog</SUB>). V<SUB>prog </SUB>is fed back to the adapter to control a magnitude of V<SUB>out</SUB>.
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