| 摘要 |
A multifunctional travel charger having a battery compartment formed in a mains adapter for insertion of separable primary/secondary batteries to establish a closed circuit, wherein the mains adapter includes a charging control circuit electrically coupled between the exchange type power conversion unit and the DC power output terminal, the battery compartment being electrically coupled to the charging control circuit for obtaining power to charge the secondary battery within the battery compartment; and a DC booster control circuit electrically coupled between the battery compartment and the DC power output terminal for boosting the DC voltage obtained from the primary/secondary batteries so as to provide the electronic products with required voltage via the DC power output terminal. In this way, the invention can serve as a conventional travel charger, a secondary battery charger, an uninterruptible charger, and an emergency power supply, thereby combining four functions in one unit.
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