A power conversion device for portable computer, which having a housing and a power converter circuit and a charging circuit contained therein is disclosed. The power converting circuit can convert the AC external power to DC power suitable for operating t...

The invention relates to: A listening device comprising an ITE part adapted for being located in an ear canal of a user and a BTE part adapted for being located behind an ear of the user, the ITE and BTE parts being at least mechanically connected by a con...

A generator-motor (100) includes a control circuit (20). The control circuit (20) is provided on an end surface of a motor (50). The control circuit (20) includes a Zener diode (21), a capacitor (22), a U-phase arm (23), a V-phase arm (24), and a W-phase a...

The present invention provides a charger capable of displaying quantity of charge of a rechargeable battery. The charger is to employ a charge device that can provide external power for power conversion so as to charge the rechargeable battery. After the c...

A battery charger (10) comprising a housing (100) including a compartment (210/220) for holding battery cells (400/420), and an internal electronic charging circuit for charging battery cells (400/420) in the compartment (210/220). A heat sink (310/320) is...

A charging device (2) has a fan device (24) for cooling the battery pack (6) during the charging process, The fan device (24) is arranged so that it feeds air from the interior to the outside of the charging device (2) and that and air inflow aperture (52)...

A battery charging device (1) has a housing (2) with a modular insert (6) chosen for a battery type. A cover (3) has a base wall (5) and ribs (8) to form a socket together with the insert (6) when the cover is open. When open, the cover (6) is held on a st...

A charger for an electronic device, said charger comprising a housing (1) provided with an AC power plug (2) for plugging into a standard AC power outlet (7). The housing (1) is further provided with an AC/DC converter for converting the AC power into DC, ...