Portable electronic equipment for the AC adapter and the switching regulator unit and DC-DC converter unit is used in this AC adapter

摘要

(57) [summary] [purpose] domestic different as well as available in the countries of the world of the commercial AC voltage consumer portable electronic devices of direction, a plurality of portable electronic devices a dedicated AC adapter, respectively, even if you have taken out abroad It eliminates the hassle to carry. [Configuration] The switching regulator unit 1 for converting an input commercial AC voltage to a constant reference DC voltage by the switching method, a DC-DC converter unit 2 heterogeneous equal rated output voltage is different from the rated input voltage is the reference DC voltage an external output terminal 121 that can be exchanged freely connected is provided and is connected to the external output terminal 121 of the switching regulator unit 1 selects the DC-DC converter unit 2 in accordance with the rated input voltage of the electronic device to be used .