The present specification relates to a power supply system enabling uninterruptible power supply, the system including a circuit breaker for regulating respective converters to which a plurality of power supply devices are connected, so as to control a power supply and demand by the opening and closing of the circuit breaker according to various situations occurring in the system, thereby enabling a UPS function to be performed between the plurality of power supply devices.

The present specification relates to a power supply device and a power supply system which enable uninterruptible power supply, wherein a circuit breaker is provided in a power bus to which a plurality of power supply devices are connected, so as to switch on/off the connected power supply devices, and thus the UPS function can be performed among the plurality of power supply devices by opening or closing the circuit breaker according to various situations occurring in the system to control power reception and supply.

A pre-charging and voltage supply system for a DC-AC inverter is provided. The system includes a first battery having a first anode and a first cathode, and a second battery having a second anode and a second cathode. The first cathode is electrically isolated from the second cathode. The system includes a contactor coupled in series between the first anode and an electrical node. The system includes a microprocessor that generates a first control signal to induce a DC-DC voltage converter to increase a voltage level applied to the DC-AC inverter. The microprocessor generates a second control signal to induce the contactor transition to a closed position such that a first voltage level is applied to the DC-AC inverter, if the voltage level between the electrical node and the first cathode is greater than a threshold voltage level.

A pre-charging and voltage supply system for a DC-AC inverter is provided. The system includes a first battery having a first anode and a first cathode, and a second battery having a second anode and a second cathode. The first cathode is electrically isolated from the second cathode. The system includes a contactor coupled in series between the first anode and an electrical node. The system includes a microprocessor that generates a first control signal to induce a DC-DC voltage converter to increase a voltage level applied to the DC-AC inverter. The microprocessor generates a second control signal to induce the contactor transition to a closed position such that a first voltage level is applied to the DC-AC inverter, if the voltage level between the electrical node and the first cathode is greater than a threshold voltage level.

The disclosed invention is a distributed control system for operating a DC bus fed by disparate DC power sources that service a known or unknown load. The voltage sources vary in v-i characteristics and have time-varying, maximum supply capacities. Each source is connected to the bus via a boost converter, which may have different dynamic characteristics and power transfer capacities, but are controlled through PWM. The invention tracks the time-varying power sources and apportions their power contribution while maintaining the DC bus voltage within the specifications. A central digital controller solves the steady-state system for the optimal duty cycle settings that achieve a desired power supply apportionment scheme for a known or predictable DC load. A distributed networked control system is derived from the central system that utilizes communications among controllers to compute a shared estimate of the unknown time-varying load through shared bus current measurements and bus voltage measurements.

Voltage supplies for supplying control devices for an aircraft are frequently designed to be redundant, so that the failure of individual operative parts of the voltage supply does not result in a complete failure of the voltage supply and thus the control device. The object of the invention is to provide a voltage supply device functioning in an operationally reliable manner in particular for an aircraft control device, having a manageable number of components.

For this purpose, a voltage supply device 4 having a first and a second main channel arrangement 6a, b is provided, wherein the voltage supply device 4 has a first and a second output transformer 17a, b, wherein a first output inductor 15a of the first main channel arrangement is designed as a primary winding 16a of the first output transformer 17a, and the second output inductor 15b of the second main channel arrangement 6b is designed as a primary winding 16b of the second output transformer 17b; and wherein the voltage supply device 4 has at least a first secondary channel arrangement 18a, wherein the first secondary channel arrangement 18a has a first secondary voltage output N1 and a first secondary winding 19a of the first output transformer 17a and a first secondary winding 19b of the second output transformer 17b, wherein the first secondary voltage output N1 is connected to the first secondary windings 19a, b which are connected in parallel.

Voltage supplies for supplying control devices for an aircraft are frequently designed to be redundant, so that the failure of individual operative parts of the voltage supply does not result in a complete failure of the voltage supply and thus the control device. The object of the invention is to provide a voltage supply device functioning in an operationally reliable manner in particular for an aircraft control device, having a manageable number of components.

For this purpose, a voltage supply device 4 having a first and a second main channel arrangement 6a, b is provided, wherein the voltage supply device 4 has a first and a second output transformer 17a, b, wherein a first output inductor 15a of the first main channel arrangement is designed as a primary winding 16a of the first output transformer 17a, and the second output inductor 15b of the second main channel arrangement 6b is designed as a primary winding 16b of the second output transformer 17b; and wherein the voltage supply device 4 has at least a first secondary channel arrangement 18a, wherein the first secondary channel arrangement 18a has a first secondary voltage output N1 and a first secondary winding 19a of the first output transformer 17a and a first secondary winding 19b of the second output transformer 17b, wherein the first secondary voltage output N1 is connected to the first secondary windings 19a, b which are connected in parallel.

A modular solar panel system facilitated to maximize the power generation from a solar module, configured to maximize power generation from a plurality of solar cells under conditions of partial shade or light obstruction. The modular solar panel system includes a crisscross network configuration of solar cell arrays, wherein the solar cells are often subjected to at least partial shading and wherein the present invention provides innovative configurations to minimize the damage inflicted by the shadows.

A modular solar panel system facilitated to maximize the power generation from a solar module, configured to maximize power generation from a plurality of solar cells under conditions of partial shade or light obstruction. The modular solar panel system includes a crisscross network configuration of solar cell arrays, wherein the solar cells are often subjected to at least partial shading and wherein the present invention provides innovative configurations to minimize the damage inflicted by the shadows.

A power system provides power from a power source to a load via a distribution bus, and includes a DC-DC converter coupled in parallel with a network of switching elements coupled between an output terminal of the power source and the distribution bus. A controller is configured to selectively activate or deactivate the DC-DC converter and each of the switching elements to enable the power source to power the load via the distribution bus. The switching elements may be transistors, and the diodes may be parasitic body diodes of the transistors. The power source may be a battery, such as a rechargeable battery. An output voltage level from the battery may be regulated by the controller as a function of operation of the DC-DC converter and a number of the activated or deactivated transistors.