Method for supplying power to an portable electronic device

摘要: A power system within a portable electronic device is disclosed. In order to discharge electricity stored in rechargeable battery the cutoff voltage, charge booster charges with electric coming from an AC/DC adaptor. When adaptor detached, performs boosting operation supply load battery. The operates only when input voltage of decreases. direct circuit conjunction booster, and does not perform any operation, supplied directly DC/DC converter. can keep converter until reaches battery, then stops being circuit.