An apparatus is disclosed. The apparatus comprises a primary power supply (PPS) configured to supply primary power, a PPS sensor configured to measure the power supplied by the PPS and provide a PPS measurement signal indicating an amount of the power supplied by the PPS, a backup power supply (BPS) configured to be provided in an emergency data system and further configured to supply backup power to a modem, and an integrated circuit configured to maintain a clock using the power supplied by the PPS. The integrated circuit is configured to receive the PPS measurement signal from the PPS sensor, determine whether the PPS measurement signal falls below a threshold, and maintain the clock using the power supplied by the BPS in response to a determination that the PPS measurement signal has fallen below the threshold.

An uninterruptible power supply device includes a switch, a power converter, and another power converter. The switch includes a first electrode that receives AC power from an AC power supply and a second electrode connected to a load via an AC bus, and is turned on during a normal operation and turned off during a power failure. The power converter converts DC power from a DC power supply into AC power and outputs it to the AC bus during a power failure. The other power converter converts the AC power received from the AC bus into DC power and stores it in a lithium-ion battery when the load is performing regeneration running, and converts the DC power of the lithium-ion battery into AC power and supplies it to the AC bus when the load is performing power running.

A vehicle including: a battery box inside of which a plurality of battery cells are provided, auxiliary equipment that can operate using electrical power, a travel system that can travel using electrical power, and a branch box that electrically connects the battery cells and the auxiliary equipment, and that electrically connects the battery cells and the travel system.

An outboard motor includes a power converter to convert AC power generated by a generator that generates power by operation of a drive engine into DC power and to supply converted DC power to a plurality of batteries, a voltage detector to detect a voltage value of the DC power converted by the power converter, and a phase angle controller configured or programmed to perform a retarding/advancing control until the voltage value of the DC power becomes equal to or higher than a first preset voltage value, which is higher than a voltage value at a start of the retarding/advancing control.

An apparatus is disclosed. The apparatus comprises a primary power supply (PPS) configured to supply primary power, a PPS sensor configured to measure the power supplied by the PPS and provide a PPS measurement signal indicating an amount of the power supplied by the PPS, a backup power supply (BPS) configured to be provided in an emergency data system and further configured to supply backup power to a modem, and an integrated circuit configured to maintain a clock using the power supplied by the PPS. The integrated circuit is configured to receive the PPS measurement signal from the PPS sensor, determine whether the PPS measurement signal falls below a threshold, and maintain the clock using the power supplied by the BPS in response to a determination that the PPS measurement signal has fallen below the threshold.

A power converter having a dynamic bus controller to control a rectifier DC output for motoring and regenerating power flow directions, in which the controller controls a DC bus voltage between first and second regenerating voltage limits and limits power at the DC output in an increasing fashion with increasing values of the DC bus voltage according to a regenerating power limit parameter for a regenerating direction of power flow at a DC output. For a motoring direction of power flow at the DC output, the controller controls the DC bus voltage at the DC output between first and second motoring voltage limits and limits the power at the DC output in a decreasing fashion with increasing values of the DC bus voltage according to a motoring power limit parameter.

A four wheel drive vehicle includes: main driving wheels and auxiliary driving wheels; a first driving motor that provides power to the main driving wheels; a second driving motor that provides power to the auxiliary driving wheels; a battery that stores electrical energy; an inverter that converts and provides the electrical energy stored in the battery to the first driving motor; and a bidirectional power converter that generates charging electric power for charging the battery by converting power supplied from the outside of the vehicle and converts and provides the electrical energy stored in the battery to the second driving motor.

A vehicle includes an engine having a throttle body, a battery, e.g., a 12-volt battery, and a battery-charging system electrically connected to the battery and configured to convert mechanical motion of the engine into electricity to charge the battery. A controller of the vehicle is programmed to, in response to an opening of the throttle body being less than an opening threshold and a state of charge of the battery (battery SOC) being less than a first charge threshold, set the battery-charging system to output a first power, wherein the charge threshold is based on a measured capacity of the battery and a measured key-off load. The controller is further programmed to, in response to the opening being less than the opening threshold and the battery SOC exceeding the first charge threshold but being less than a second charge threshold, set the battery-charging system to output a second power that is less than the first power.

Module-based energy systems are provided having multiple converter-source modules. The converter-source modules can each include an energy source and a converter. The systems can further include control circuitry for the modules. The modules can be arranged in various ways to provide single phase AC, multi-phase AC, and/or DC outputs. Each module can be independently monitored and controlled.

The invention concerns a method for controlling a power supply device of an electrical system, the device comprising at least one separate power supply assembly (E_1, E_2, E_3) per phase of the electrical system, each power supply assembly comprising at least one battery pack defined by a state parameter (ST.sub.i) and provided with at least one battery intended to supply a control voltage to the phase to which it is connected, taking into account at least one setpoint value (X.sub.set), the method consisting in: Executing at least one correction block (B_CORR) receiving as input each setpoint value and the state parameter (ST.sub.i) of each battery pack of the power supply assemblies of the system, and, For each power supply assembly (E_1, E_2, E_3), the correction block (B_CORR) is configured to determine a correction value (X.sub.corr_i) to be applied directly or indirectly to its setpoint value.