A Dielectric Energy Storage System (DESS), a Dielectric Energy Storage System Management System (DESS-MS), and method that stores energy for a wide variety of applications.

An automotive controller drives a plurality of relays to a first position or a second position depending on which of a first port and second port, that are both arranged to provide electrical power, has greater electrical power such that a traction battery receives current from the one of the first port and second port delivering the greater electrical power but not the other of the first port and second port.

A portable fresh water source that can dispense water under pressure through a hand-held nozzle for utility and recreational uses, such as for rinsing saltwater from marine equipment, washing hands, showering, cleaning dishes, watering plants, or any other activity in which a portable on-demand fresh water source would be useful. The portable fresh water source includes a reservoir, a battery, a pressurizing pump, and a dispensing apparatus. The battery provides power to the pressurizing pump, which in turn provides water pressure to the dispensing apparatus. A version of the dispensing apparatus is a hose with a nozzle. Another version has a hands-free nozzle to allow a user to control the system without touching the device.

A battery pack including a first subset of battery cells and a second subset of battery cells, set of switches, a DC output port and an AC output port. The battery pack may provide both a DC output signal at the DC output port and an AC output signal at the AC output port by selectively activating the switches of the set of switches. The battery pack may couple the first subset of battery cells and the second subset of battery cells in a parallel configuration or a series configuration.

The innovation disclosed and claimed herein, in at least one aspect thereof, comprises continuously charging a cell phone while the user utilizes the cellular phone for ordinary activities (e.g. posting to social media sites, texting, talking, etc.). The signals from routine cellular phone operations will send signals to a photocoupler or other dedicated sensor. The dedicated sensor will output current to drive a magnet mechanism which will in turn drive a fan that generates current to charge to a super/ultra-capacitor.

A charging management chip includes a switching charging circuit and a direct charging circuit. The switching charging circuit receives charging power, and passes through the charging power to a first node, and charges a battery according to a switching charging method and controls generation of a system voltage provided to an electronic system. The direct charging circuit receives the charging power applied to the first node via an input node, and charges the battery according to a direct charging method by providing the charging power to an output node based on a switching circuit therein. The switching charging circuit charges the battery through a first charging path including an inductor arranged outside the charging management chip, and the direct charging circuit charges the battery through a second charging path through which the charging power transferred to the output node is directly provided to the battery.

Power consumption of a power storage device is reduced. A highly safe power storage device is provided. Safety of a battery monitored by a semiconductor device is improved. Power consumption is reduced; for example, power in a resting state is reduced. Time needed to perform processing for transition from a resting state to a normal state is shortened or energy is reduced. A power storage device includes a battery, a control circuit, and a converter circuit. The converter circuit has a function of supplying a voltage to the battery; and the control circuit has a function of measuring data of a voltage of the battery and a function of retaining the data of the voltage of the battery.

Exemplary power supply systems and methods according to the present invention include circuitry that is configured to provide DC power and configured to receive a input signal that originates from a portable electronic device (the “PED”) and to provide a output signal to be sent to the PED. Such circuitry is configured to be coupled to the PED via a connector having a first, second, third, and fourth conductor. Such a connector is configured to be detachably mated with a power input interface of the PED to transfer the DC power to the PED, a ground reference to the PED, the input signal from the PED to the circuitry, and, in coordination with the input signal, the output signal from the circuitry to the PED, which is usable by the PED in connection with control of charging a battery of the PED based on the DC power provided by the circuitry.

Example implementations relate to concurrent alternating-current and direct-current. In one example, a device comprises a power module connected to a first power outlet, the power module connected to a second power outlet, and a controller to the power module to concurrently provide alternating-current (AC) power to the first power outlet and direct-current (DC) power to the second power outlet by switching a transistor including switching circuitry in response to an absence of AC input power to the device.

A control method for a direct current electrical device and a direct current electrical device. The method includes: acquiring input parameters of a power supply of the direct current electrical device, identifying a type of the power supply according to the input parameters, and determining an operation mode of the direct current electrical device corresponding to the type of the power supply, and controlling an operation of the direct current electrical device according to the operation mode.