Control methods for an Energy Storage System (ESS) are provided which relates to the technical field of off-grid controlling and include: when the ESS operates in AC/DC parallel off-grid mode, obtaining given values of positive sequence voltage amplitude, positive sequence phase, D-axis and Q-axis…
A plant power supply system includes a power conversion system and a busbar box, where the busbar box is provided with a direct current (DC) busbar, the power conversion system being connected to the DC busbar, and the DC busbar being further connected to an electrical device, where the power…
This application provides a voltage conversion apparatus, a control method, and a power supply device. The voltage conversion apparatus includes a control circuit. The control circuit is configured to: obtain a first sampling voltage and a second sampling voltage; detect a resonant period based on…
The present invention discloses an uninterrupted power supply circuit and a method for controlling the same, and pertains to the communications field. The circuit includes an alternating current input module, a positive Boost boost module, a negative Boost boost module, a battery, a first switch…
This electronic device (3) includes a control portion (37) receiving DC power through an AC-DC conversion portion (32a) from an AC power supply and a connection portion (31) connected to an external device (2) in a state where the connection portion can receive DC power from the external device…
The present technique relates to a communication device, a communication method, a battery device, and an electronic apparatus that can easily manage a battery device formed with a large number of battery cells. A transformer (171) is formed with a coil (181) on the side of a battery (51) and a…
An electronic device (10), a power supply method thereof and a wireless power supply system thereof. The electronic device (10) includes a wired electric power receiving module (12), a wireless electric power receiving module (14) and a change-over switch (16). The wired electric power receiving…
An AC adapter includes a conversion part, an output terminal, and a voltage adjusting circuit. The conversion part converts alternating current input to an input terminal into a direct current. The output terminal supplies the direct current to an electronic apparatus outside. The voltage adjusting…
The method involves controlling switches (12) of switching arms (A, B) by transmission of pulse width modulation control signals. Alternating voltage (Vx) is generated in an opposition phase relative to voltage at compensation inductance terminals (7') connected to one switching arm (B) and a…
A charging method using a multiphase line voltage for charging an energy storage system (ESS) using a polyphase motor drive circuit communicated to a polyphase motor, the polyphase motor drive circuit including a plurality M of driver stages, one driver stage for each phase of the polyphase motor…
A power transmitting apparatus (101) has a power transmitting apparatus side active electrode (12) provided within the casing thereof along a seat (10D). A power transmitting apparatus side passive electrode (11) is exposed on a backrest (10B). A power receiving apparatus (201) has a power…
A charging device with a multi-step voltage charging source with means for taking active control over charging source voltage to further control its outputted charging current in the course of charging process executed by a (dis)chargeable storage discharging device so that when the charging from…
A power supply topology having a first path configured to be coupled to a controllable DC power source, a second path configured to be coupled to a battery, and a third path configured to be coupled to a system load, wherein the first, second, and third paths are coupled to a common node. A first…
A charging device with shunt and voltage division control by voltage detection to control a main switch (SWI) connected in series with the charging circuit by creating shunting to actively reduce charging current in the course of detecting voltage rise of a rechargeable secondary battery (BAT100)…
A charger for charging a battery power source removably disposed on and connectable to the charger, the charger including a control
The adjustable timing programmer (22) is connected to a push button (27) with contacts (28,29) which activate a relay (33). The relay operates a latching contact (35), a programmer contact (25) and charger contacts (36,37). After the push button is released the charger operates until the programmer…