Power converting devices (100) for power tools. One embodiment provides a power converter device (100) including a power source (200), a power converter (210) coupled to the power source (200), and an electronic processor (220) coupled to the power converter (210) to control the operation of the power converter (210). The power converter (210) is configured to receive an input power in one form or at a first voltage from the power source and convert the input power to an output power in another form or at a second voltage. The power converter (210) includes at least one wide bandgap field effect transistor controlled by the electronic processor (220) to convert the input power to output power.

The invention relates to a battery charging system (1) comprising: a shoe accessory (100) adapted to receive an electronic device (200) comprising a rechargeable battery (250); a charging base (300) configured to generate a charging current, and a charging surface (310) for receiving the shoe accessory (100), the charging base (300) being configured to send the charging current to the rechargeable battery (250) via the charging surface (310); conductive attachment means (140) for attaching the shoe accessory (100) to a shoe (10-1, 10-2). According to the invention, when the shoe accessory is attached to a shoe (10-1, 10-2), a first end of the conductive attachment means is in electrical contact with the rechargeable battery (250), and a second end of the conductive attachment means is in electrical contact with the charging surface (310).

Aspects of the present invention further include a lighting system comprising a lighting source, a connector in electrical communication with the lighting source and an external power source, an energy storage device, an input device, and a controller. The controller may be configured to identify the presence of a load indicator signal received via the input device, determine whether the load indicator signal indicates a load-reducing state, and when the load indicator signal indicates the load-reducing state, discharge the energy storage device to maintain an intensity of the lighting source.

A controller includes a microcontroller and a control circuit. The control circuit includes circuitry structured to sense an alternating current (AC) from a current transformer coupled to the controller, convert the AC to direct current (rectified output DC), charge a capacitor to a first predetermined voltage level using the rectified output DC of the current transformer, and switch from a primary power supply for the microcontroller to a secondary power supply that includes the capacitor. The control circuit includes circuitry structured to cause the capacitor of the secondary power supply to provide power, at a second voltage level, to a clock coupled to the microcontroller.

A battery pack is configured to supply electric power to an electric work machine, such as a power tool or outdoor power equipment. The battery pack includes a first battery-signal terminal and a second battery-signal terminal. The first battery-signal terminal outputs, to the electric work machine, a first signal indicating that discharging is to be prohibited or permitted. The second battery-signal terminal outputs, to the electric work machine, a second signal indicating that discharging is to be prohibited or permitted. Thus, two communication paths are provided for transmitting signals to permit or prohibit discharging of the battery pack.

A system for representing power system information to a user includes a processor configured to receive data descriptive of logical elements including data descriptive of a first logical element and a second logical element, receive data descriptive of devices including data descriptive of a first device, receive data descriptive of measured characteristics of the devices including data descriptive of a first measured characteristic of the first device, receive data mapping the first device to the first logical element for a first period of time, receive data mapping the first device to the second logical element for a second period of time, receive data requesting at least one summary value for the first logical element over a period of time spanning the first period of time and the second period of time, calculate, in response to receiving the data requesting the at least one summary value.

A smart, bi-directional electrical microgrid includes GPU-on-demand systems, including a computing device having a graphics processing unit (GPU) and a memory, an Energy Management System (EMS) configured for regulating power usage and optimizing energy efficiency, a distributed power resource for providing a stable and efficient energy supply, a database configured to store energy metrics, a Large Language Model (LLM) for processing the energy metrics stored to generate an energy management plan, an API gateway providing external systems secure, on-demand access to the GPU, and a software module for managing the GPU-on-demand system according to the energy management plan. The microgrid also includes one or more management servers for managing the delivery and distribution of power among the GPU-on-demand systems to optimize efficiency and uptime, and a network of power lines that interconnect the GPU-on-demand systems.

Aspects of the present invention further include a lighting system comprising a lighting source, a connector in electrical communication with the lighting source and an external power source, an energy storage device, an input device, and a controller. The controller may be configured to identify the presence of a load indicator signal received via the input device, determine whether the load indicator signal indicates a load-reducing state, and when the load indicator signal indicates the load-reducing state, discharge the energy storage device to maintain an intensity of the lighting source.

Aspects of the present invention further include a lighting system comprising a lighting source, a connector in electrical communication with the lighting source and an external power source, an energy storage device, an input device, and a controller. The controller may be configured to identify the presence of a load indicator signal received via the input device, determine whether the load indicator signal indicates a load-reducing state, and when the load indicator signal indicates the load-reducing state, discharge the energy storage device to maintain an intensity of the lighting source.

A system and related method balance phase power in a power distribution system. The method comprises performing the following operations dynamically and repeatedly, during operation of subcomponents receiving power from a plurality of redundant intelligent PDUs. Input phases of the intelligent PDUs are monitored for power values associated with the input phases that provide power to the subcomponents through the PDUs. A target per-phase power value is determined. When the input phases are not balanced, an input phase at an input port is redirected to an output port of at least one of the PDUs using a switch to bring the not-balanced phases closer to being balanced phases by reducing a difference of phase powers to the target per-phase power value. The method then comprises performing load shifting on the power supply units (PSUs) associated with the redundant PDUs to improve an overall phase power balance across all redundant PDUs.