42results about How to "Uniform output power" patented technology

The invention relates to the electric power electronic technical field, and discloses a DC-DC converting circuit which comprises N unit converting circuits, M inductance units, a circuit input positive terminal, a circuit input negative terminal, a circuit output positive terminal and a circuit output negative terminal. The input positive terminal of the first unit converting circuit is in connection with the circuit input positive terminal through an inductance unit, and is directly in connection with the circuit input positive terminal; the input negative terminal of a Kth unit converting circuit is in connection with the input positive terminal of a (K+1)th unit converting circuit through the inductance unit or is directly in connection with the input positive terminal of a (K+1)th unit converting circuit; K, M and N are all natural numbers, KN, and 1=M=(N+1). The input negative terminal of an Nth unit converting circuit is in connection with the circuit input negative terminal through the inductance unit or is directly in connection with the circuit input negative terminal; the outputs of the N unit converting circuits are in parallel connection or in series connection, and are in connection with the circuit output positive terminal and the circuit output negative terminal. The DC-DC converting circuit reduces the cost, eliminates or reduces common mode interference, realizes interleaving control, decrease input and output current ripples, and is in favor of reducing filters and implementation difficulty.

The present disclosure relates to a DC-DC converter and a control method thereof, including an input terminal, an output terminal, a plurality of parallel conversion modules, and a main control board; the main control board is connected to each of the conversion modules; the The main control board is used to output power according to demand, and allocate power to each of the conversion modules, wherein the sum of the output powers of each of the conversion modules is the actual output power of the output terminal. In this way, the required output power is obtained through the main control board, and then according to the required output power, power is allocated to each conversion module, and each conversion module outputs corresponding power according to the distribution of the main control board. In this way, the output power of each conversion module can be balanced, so as to ensure the load balance of each conversion module.

A micro-grid system with micro-source half-bridge converters in series, including photovoltaic micro-sources, wind micro-sources, energy storage devices, AC / DC rectifier circuits, DC / DC conversion circuits, micro-source half-bridge converters, filtering The inverter, load, transformer, wind power and photovoltaic micro-source are connected in parallel to the DC side of the micro-source half-bridge converter through the AC / DC rectifier circuit or DC / DC conversion circuit, and the energy storage device is connected in parallel to the micro-source DC link. , the output side of each micro-source half-bridge converter is sequentially connected in series, and a three-phase system is built by a double-star combination, in which each phase is composed of two bridge arms, and each bridge arm is composed of N One or n power generating sub-modules are connected in series with an inductor, 2≤N≤50, N=n.

The present invention provides a power supply unit, a power supply device, and a power supply system. The power supply unit is the first power supply unit in the power supply device. The first power supply unit is used for when the load demand current value is higher than the output current limit value of the first power supply unit. Obtain the actual output voltage of each power supply unit in the power supply unit; determine the average output voltage according to the actual output voltage of each power supply unit; send the average output voltage to each second power supply unit, and the average output voltage is used for each The second power supply unit performs the following operation: the output voltage setting value of the second power supply unit is determined according to the average value of the output voltage, and the output voltage setting values ​​determined by each second power supply unit according to the average value of the output voltage are the same. The power supply unit provided by the present invention is applied in a power supply unit with output in series, which is beneficial to maintain the output power balance of different power supply units in the power supply unit, and improves the service life of each power supply unit and the entire power supply unit and the reliability of the power supply unit.

The present invention belongs to the field of integrated photoelectronic technology, and is especially one kind of 1xN light power shunt with low loss, small size and homogeneous power output. The 1xN light power shunt includes N cascade T-shaped shunts, and each of the T-shaped shunts includes one multimode interference waveguide, one monomode incident waveguide serving as the input of T-shaped shunt, one output waveguide divided with one V-groove into two sections serving as two outputs of the T-shaped shunt, and one light power modulating module.