Systems and methods for adaptive voltage regulation with multiple ports are described. The device can include a first voltage regulator coupled to a first port and can regulate voltages between the first port and a battery. The device can further include a second voltage regulator coupled to a…
A distributed energy storage unit (DES) is disclosed. The DES unit includes a combined input/output terminal configured to be coupled to an external circuit, power conversion circuitry operably coupled to the combined input/output terminal, an energy storage device operably coupled to the power…
Systems and methods for operating a battery charger are described. A controller can operate a battery charger under a forward mode. Under the forward mode, a power supply is connected to the battery charger to provide power to a load and to charge a battery. The controller can determine an…
An apparatus in which electric power is generated for an electrical load from differentials in electric field strengths within a vicinity of powerlines includes: a plurality of electrodes separated and electrically insulated from one another for enabling differentials in voltage resulting from…
There is described a method of controlling a single inductor multiple output, SIMO, switching converter, the method comprising (a) counting, for each output of the multiple outputs of the SIMO switching converter, a period of time during which an output voltage at the respective output is below a…
A differential piezoelectric actuator-system (10) includes an inductor (L) and driver-circuit (11, 12) having switches (S1-S6) for transferring energy between first and second actuators (PZT1, PZT2) and the inductor, and between a voltage-supply node (Vbatt) and the inductor. Control circuitry (21)…
A method for operating a power factor correction (PFC) circuit (110) of an uninterruptible power supply (UPS) apparatus (100) is provided. The PFC circuit (110) includes two T-type converters, and each of the T-type converters includes four switching tubes (Q1-Q4, Q5-Q8). The method includes…
A wireless hotpoint device includes a main body having a circuit board and a battery arranged therein. The circuit board includes a first control unit, a second control unit connected to the first control unit, and a wireless transmission unit connected to the second control unit. The first control…
A UPS electricity supply control circuit and a UPS electricity supply. The present UPS electricity supply comprises a rechargeable battery and a UPS electricity supply control circuit connected to said rechargeable battery. Said UPS electricity supply control circuit comprises an input filter…
A power management system (20) adjusts a first output voltage (201) delivered to a load (19) and adjusts a second output voltage (202) delivered to a battery (18). The power management system includes an error amplifier (223) for comparing the first output voltage (201) with a first voltage…
The disclosure discloses a method for battery management. The method includes: monitoring a total load current, a battery capacity, a charging current ratio, and the number of operating rectifiers; calculating a current-limiting point according to the total load current, the battery capacity, the…
The field device (10) has input protection unit (101), energy storage unit (105), electrical consumer, charging circuit and charging current control unit. The charging circuit is operated, such that the energy storage unit stores the supplied energy. The charging current control unit is operated to…
A power supply unit for a mobile terminal and a power supply switching method for a mobile terminal. The power supply unit for a mobile terminal includes a battery (150), a power converting module (110), a charge management module (120), and a power switching module (130). Both the charge…
The invention relates to the field of electrical engineering and can be used for the autonomous supply of electrical energy to electrical consumers. The technical result consists in a manifold increase in an uninterrupted operating time which is equal to the service life of the rechargeable battery…
A battery charging and electrical energy delivery system (25) that allows for separation of charging of a battery (23) and delivery of electrical energy to a first set of consumers (24). The battery may be charged via a first path (29) for connecting the battery with an energy source (22), while…
A system for optimally recharging a battery cell while powering a device connected to the battery pack, in which an electronic switch (22) connects a battery pack power-output either to the battery cells (12) or to a second power-input contact (20). When not recharging, the battery-pack…
Power supply for supplying a direct voltage load (2) and comprising a rechargeable battery (4), and a voltage generator (6) for recharging the battery (4) and supplying power to the load (2), including first control means (20,16) to control supply of current from the voltage generator (6) to the…
A DC power source unit (100) supplies a DC voltage to a power tool (4) through an adapter (3) when a power switch (4b) of the tool (4) is turned ON and also charges a battery pack (5) used as an alternative power source of the tool (4) when the power tool (4) is not operated. A minimum battery…
A method of supplying power to an electronic device (3; 31; 43; 53) having a power consumption in which predictable current peaks occur is disclosed. The device is connectable to a battery (2). The method comprises the steps of supplying power from a power supply (4; 33; 41; 52) to the device…