8 results about "Resonant inverter" patented technology

The invention relates to a motor vehicle with motor vehicle-to-grid functionality, comprising an electric machine, a high-voltage battery, an inverter, and a disconnect switch, wherein the high-voltage battery is connected to the inverter to supply the inverter with energy, and the inverter is connected to the electric machine and configured to supply the electric machine with energy, wherein the inverter is configured as a three-phase inverter, wherein the inverter comprises a first inverter circuit configured to supply the electric machine and a second inverter circuit configured to supply the electric machine, wherein the inverter is configured as a resonant inverter, and wherein the electric machine is configured as an open-end winding configuration with split input windings for each of the phases and a three-phase center tap, wherein the center tap is connected to a disconnect switch.

The invention discloses a power management method and system for an intelligent electric hinge. The method comprises the steps that primary temperature control is conducted on a circuit board and a power storage module of a door leaf receiving end; the door frame transmitting end adopts a full-bridge LLC resonant inverter circuit and drives a transmitting coil at specified high frequency, and after the door leaf receiving end receives electric energy, a synchronous rectification circuit is adopted for rectification to obtain initial voltage; the power management module carries out constant current-constant voltage equalizing charging on the battery pack in the power storage module, and carries out secondary temperature control on the receiving end circuit board according to a temperature threshold value; and a DC-DC unit in the power management module is utilized to convert the initial voltage or the power supply voltage of the power storage module according to the request of the multi-path function module and the control instruction of the power management module, and multi-path output voltage is obtained respectively. Smooth operation of each functional module is guaranteed, and power consumption in the electric energy conversion process is effectively reduced.

A power conversion system comprising, three full wave LLC resonant converters each of which has an associated high frequency isolation transformer, a full wave rectifier and an unfolding inverter, to provide a direct connection to a Medium Voltage (MV) three-phase grid for a high power photovoltaic system.

This invention addresses the problem of effectively filtering multi-band and multi-bandwidth spectral signals by proposing a differential bandpass filter with simultaneously adjustable bandwidth and frequency band, featuring reconfigurable center frequency and bandwidth. The differential bandpass filter structure has two main parts: a resonant inverter and a parallel resonator. The programmability and reconfigurability of the differential bandpass filter are achieved by adjusting the resonant characteristics of the even / odd mode sub-circuit network of the resonant inverter. The bandwidth can be adjusted when the relative relationship between these resonators and the transmission zeros of the parallel resonator changes; when all resonant points shift while maintaining their spectral bandwidth, the center frequency is tuned to a constant absolute bandwidth. Therefore, the center frequency and bandwidth of the differential bandpass filter can be arbitrarily reconfigured and programmed within their maximum range of variation.

This application provides an adjustable capacitance value water-cooled laminated busbar for LLC resonant inverters, relating to the field of induction heating power supplies. The busbar includes a laminated busbar, water-cooling pipes, resonant capacitors, insulating pads, copper nuts, and insulating nuts. Multiple resonant capacitors are spaced apart on one side of the laminated busbar, each containing multiple terminals. These terminals are embedded in pre-fabricated through-holes in the laminated busbar, with gaps between the terminals and the inner walls of the through-holes. Copper nuts or insulating nuts are selectively fitted into the gaps between the terminals and the through-holes. Terminals fitted with copper nuts are conductive to the laminated busbar, while terminals fitted with insulating nuts are insulated from the laminated busbar. Water cooling is coiled around the surface of the laminated busbar surrounding the resonant capacitors. Through structural optimization and adjustable capacitance design, the device's adaptability is improved, its operating frequency is stabilized, and its service life is extended. It also provides efficient heat dissipation and allows for rapid and precise on-site capacitance adjustment.

A resonant inverter (10) that is particularly favorable with regard to its electromagnetic compatibility (EMC), especially for supplying power to an electric drive motor in a motor vehicle, comprises two switches (SLS, SHS) connected to a phase output (OPH) for each phase provided, and an auxiliary branch (14) connected to the phase output (OPH) which includes an inductor (LAUX), wherein each of the two switches (SLS, SHS) has at least one adjustable snubber capacitance (CSNL, CSNH).

This invention discloses a plasma heater, comprising: a power supply system for converting mains power into controllable high-voltage direct current; and a multiphase discharge device electrically connected to the power supply system for generating a plasma jet. The power supply system includes a resonant inverter circuit based on zero-voltage switching. The multiphase discharge device includes a central common-ground electrode and multiple high-voltage electrodes arranged around it, forming a needle-needle discharge structure. This invention maintains the plasma arc column boundary temperature above 2000K by controlling the discharge current above 48mA, effectively suppressing nitrogen oxide generation and reducing NO2 emission concentration to below 6.5ppm, thus exhibiting efficient, stable, and environmentally friendly heating performance.

This invention discloses a rectifier power supply and its control method for pulsed power decoupling, belonging to the field of converter technology. The rectifier power supply includes a controller, and sequentially connected power factor correction circuit, input capacitor, resonant isolation circuit, buffer capacitor, voltage correction circuit, and output capacitor. The resonant isolation circuit includes a resonant inverter circuit. The power factor correction circuit is also connected to an external AC power grid, and the output capacitor is also connected to an external pulsed load. The controller collects the input three-phase voltage, input three-phase current, and output voltage of the power factor correction circuit in real time, as well as the output voltage of the resonant isolation circuit and the voltage correction circuit. It then generates drive signals for each switching device in the power factor correction circuit, resonant isolation circuit, and voltage correction circuit, and performs corresponding control. This invention achieves constant grid-side power under pulsed loads, improving the power density and power quality of the rectifier power supply.