When the processor receives execution data, the processor causes an executable program to progress based on the execution data. When the processor receives update data, the processor writes the update data into a memory and causes updating of an update program to progress. When the update of the update program is completed and the programmable device is thereafter reset, the processor ends the executable program and launches the update program as the executable program.

A contactless card with power harvesting unit is described. The power harvesting unit is configured to harvest power from near field communication radio wave fields and supply power to a memory, processor, and communication circuit of the contactless card. In some embodiments, the contactless card may also include a capacitor for smoothing out power deliver or a rechargeable battery. The contactless card is configured to establish two-way communication with a secondary device and to store and execute applets. In some embodiments, the contactless card is a payment card which contains information associated with a primary profile and a secondary profile. The secondary profile may be activated using two-way communication if the primary profile is deactivated due to fraudulent activity.

A system and method for charging and discharging management of an energy storage device. The system includes an electrical signal collection circuit, a condition monitoring device, a processor, a gating mechanism, a control circuit, and a bidirectional switching power supply. The processor is configured to: in response to the energy storage device being in a charging state, determine a charging parameter based on a voltage signal and condition data of at least one battery core, send the charging parameter to the control circuit; in response to the energy storage device being in a discharging state, determine a discharging parameter based on the voltage signal of the at least one battery core, and the discharging load of at least one discharging port, send the discharging parameter to the control circuit, the discharging parameter including the target discharging battery core.

There is disclosed herein an energy storage system for a direct current (DC) transmission system, the energy storage system being configured to be connected to a DC link. The energy storage system comprises a first system terminal, a second system terminal, a first converter connected to the first system terminal, and a second converter connected to the first converter and the second system terminal. The energy storage system further comprises an AC loop device providing an alternating current (AC) path, and a plurality of energy storage devices connected in parallel with the second converter comprising a cell having power electronic switches, and an energy storage element connected to the cell, wherein the cells are individually switchable. The present disclosure further relates to a method for providing energy storage to a DC transmission system.

An adjustment unit of an on-board backup control apparatus controls a first charge/discharge unit corresponding to a first power storage portion such as to supply charge current to the first power storage portion in a first state during a first period and perform constant voltage charging with respect to the first power storage portion during a second period following the first period. The adjustment unit controls a second charge/discharge unit corresponding to a second power storage portion such as to establish a second state with respect to the second power storage portion during the first period and supply charge current to the second power storage portion in a third state during the second period, charge current being suppressed in the second state compared to in the first state and being increased in the third state compared to in the second state.

A power switching circuit is connected to a first power supply, a second power supply, a first circuit and a second circuit. The power switching circuit has a first main path, a second main path, a first switching path, and a second switching path. The power switching circuit has a control circuit that forms a power supply path by controlling each of the first main path, the second main path, the first switching path, and the second switching path in either a conducting or non-conducting state. When a failure is generated in one of the first circuit and the second circuit, the control circuit forms a power supply path that does not affect the operation of the other of the first circuit and the second circuit.

An electronic apparatus includes a control portion, a signal output circuit, a switching processing portion, and a determination processing portion. The control portion switches on or off power supply from the primary power source in response to detection of an operation on a power switch. The signal output circuit outputs a preset digital signal. The switching processing portion switches a signal level of the digital signal when a power supply state of the control portion is switched. The determination processing portion determines whether or not to execute power supply to the control portion based on the signal level of the digital signal output by the signal output circuit when power supply from an external power source to the primary power source is started.

Disclosed is a method for controlling battery charging/discharging current in an off-grid mode of a hybrid energy storage inverter that is based on photovoltaic and a lithium battery. If photovoltaic energy is sufficient and a battery is not fully charged, the photovoltaic energy is supplied to a load and excess energy is supplied to the battery, to achieve maximum power point tracking of an output power of a photovoltaic component achieves maximum power point tracking; if photovoltaic energy is sufficient and a battery has been fully charged, the photovoltaic energy is supplied to a load, the excess photovoltaic energy is prohibited from charging the battery to prevent overcharging of the lithium battery; if photovoltaic energy is insufficient, the photovoltaic energy and battery energy are jointly supplied to a load, to achieve maximum power point tracking of an output power of a photovoltaic component.

A method of power distribution in an electronic control system at an electrically powered mining or construction machine. A line converter is selectively connectable to a mains power source and an on-board battery and/or fuel cell. Predefined energy supply modes are provided, defining how energy is to be distributed by predefined control sequences defining start-up sequences for initiating, shutdown sequences for terminating, and handover sequences for changing from a first to a second energy supply mode. In response to operator selection of activation of a specific energy supply mode is executed the predefined control sequence for start-up of, or if already operating in another mode handover to, the operator selected specific energy supply mode, or in response to operator selection of de-activation of a specific energy supply mode, the predefined shutdown sequences for terminating the operator selected specific energy supply mode.

Provided are an electronic system and a method for controlling the same. The electronic system includes an electronic device at least including: a charging circuit having a first input terminal, a second input terminal, and a first output terminal, and including a first transistor, a second transistor, a third transistor, and a fourth transistor; a switching circuit including an input terminal connected to the first output terminal and an output terminal connected to a power supply of the electronic device and configured to connect or disconnect a connection path between the first output terminal and the power supply; and a communication device, which, in a communication mode, is connected to the first and second input terminals to communicate with the electronic device through the first and second input terminals. The implementation of the present disclosure is at least conducive to prolonging the service life of the electronic device.