Abstract: A battery charger has at least one charging port for a device having a rechargeable battery, and a charging circuit. The charging circuit includes a DC-DC circuit, a current regulation circuit (CRC) and an output voltage adjustment circuit (OVA), the charging port being electrically connected to an output of the CRC. The OVA reduces the power consumed by the CRC circuit by depressing a voltage at the input of the CRC so that the CRC output voltage is sufficient to charge the rechargeable battery when it is discharged. The OVA circuit increases the input voltage of the CRC as the rechargeable battery is charged.

Abstract: A pivot motor for a hair clipper is provided, including a stator with a plurality of laminations, a bobbin located in operational relation to the stator and having a coil of wire wound around the bobbin, an armature being configured for driving a hair clipper moving blade at one end, and having at least one magnet at an opposite end, the armature having a pivot point, and the motor being configured for operation between 2.5 and 4.

Abstract: An intelligent hair clipper training system includes a housing having hair associated therewith, an electric hair clipper for cutting the hair on the housing, at least one comb associated with the hair clipper, a sensor array for detecting a position of the electric hair clipper relative to the housing, an indicator arrangement for indicating different zones of hair on the housing, and a control arrangement configured to interpret positional data provided by the sensor array and cause the indicator arrangement to illuminate one or more of the zones of hair on the housing.