Techtronic Power Tools Technology Limited

Mike Hornick

Anthony Thomas Tocco

Samuel Boyles

Umesh Rajani

Mark Huggins

Robert E McCracken

Jason Porter Whitmire

William Stuart Miller

Urnesh Rajani

A wireless power distribution system and method for power tools and other battery-powered devices. The system includes a power transmitter and a plurality of power harvesters or receivers. The receivers are located in power tools, battery packs that are attachable to and detachable from the power tools, a device or case that is interfaceable with the power tool or battery pack, conventionally-sized batteries, or other battery-powered devices. The power transmitter transmits radio frequency ('RF') power signals to the receivers that are within transmission range of the power transmitter. The receivers receive the RF power signals and convert the RF power signals into direct current. The direct current is used to charge a battery, directly power a tool, etc.

Wireless power distribution system and method

An energy-efficient and compact battery charger. The battery charger includes, among other things, a charging port, a power supply module, a battery charger control module or controller, a power control safety module, a battery charger switch, and an indicator. The controller, the power control safety module, and the battery charger switch work in conjunction with each other to control the operation of the battery charger. The controller is configured to execute a charging control process which detects the insertion of a battery pack into the charging port, controls the charging of the battery pack, and controls the illumination or display of the indicator. The power control safety module includes a power control safety circuit that is configured to prevent the charging current and/or the charging voltage from damaging the battery charger or battery pack during a malfunction.

Battery charger

An energy-efficient and compact multi-port battery charger. The battery charger includes, among other things, a power supply module, a battery charger control module or controller, a power switching module, one or more power control safety modules, a plurality of battery charger switches, and a plurality of indicators. The controller, the power switching module, the power control safety modules, and the battery charger switches work in conjunction with each other to control the operation of the battery charger. The controller is configured to execute a charging control process which detects the insertion of a battery pack into a charging port, selects a charging port for charging, controls the power output from the power switching module, and controls the illumination or display of the indicators. The power switching module uses control signals from the controller to switch the power received from the power supply module such that a charging current is applied to a single charging port. Each of the power control safety modules includes a power control safety circuit that is configured to prevent the charging current and/or the charging voltage from damaging the battery charger or battery pack during a malfunction.

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Anderson, SC, United States of America

Mike Hornick