94 results about "Power processing unit" patented technology

The present disclosure provides a charging system including: at least two charging devices including at least two output units configured to supply connected automobiles with charging power, a first bus electrically connected to the output units and configured to transfer charging power to the output units, and a power processing unit configured to process power, which is supplied from a power source, using a first capacity and supply the first bus with the processed power; and a second bus configured to connect a first bus of a first charging device and a first bus of a second charging device, wherein, when a total capacity of charging power supplied to automobiles connected to the first charging device exceeds the first capacity, a part or all of lacking capacity is supplied via the second bus.

The invention relates to a commercial vehicle-mounted cloud service information terminal. The terminal comprises a main control unit, a power processing unit, a signal detection unit, a communication positioning unit, an interface unit, a Bluetooth/WIFI (Wireless Fidelity) communication unit and a human-computer interaction unit, wherein the power processing unit, the signal detection unit, the communication positioning unit, the interface unit, the Bluetooth/WIFI communication unit and the human-computer interaction unit are connected with the main control unit respectively. The commercial vehicle-mounted cloud service information terminal provided by the invention has multi-voltage-grade voltage supply, can accord with multiple communication network modes, and can automatically adapt to an appropriate communication network mode; by information exchange between the terminal and a running distance management center, vehicle safety can be co-controlled, and the terminal is provided with a high-generality hardware and software platform.

The invention provides a laser ablation pulsed plasma thruster. The laser ablation pulsed plasma thruster comprises a power processing unit, a capacitor unit, a working medium, a working medium supply device, a cathode, an anode and a laser generating mechanism. The power processing unit is connected with the capacitor unit through a transmission line. The positive output end and the negative output end of the capacitor unit are connected to the cathode and the anode through transmission lines correspondingly. The capacitor unit, the transmission lines, the cathode and the anode form a discharging loop, and gas between the cathode and the anode can be ionized and accelerated. A discharging channel is formed between the cathode and the anode. The working medium supply device for fixing and conveying the working medium is arranged at one end of the discharging channel, and the working medium stretches into the discharging channel from the end. Gaps exist between the working medium and the cathode as well as between the working medium and the anode. The laser generating mechanism emits laser beams into the discharging channel to ablate the working medium, the laser beams continuously ablate the working medium to generate part of ionized gas and particulate matters, the ionized gas and the particulate matters enter the discharging channel to form plasma jets moving along the discharging channel, and thrust is generated. The laser ablation pulsed plasma thruster is high in specific impulse, total impulse, working medium utilization rate and control precision.

The invention provides a discharge loop for reducing starting impact of a Hall thruster and a soft start method thereof. According to the discharge loop, a filter module is additionally arranged, andan excitation coil is placed behind the filter module. The soft start method comprises the steps of optimizing power supply, gas supply mode and timing. The filter module belongs to a RLC low-pass filter loop as a whole, and the influence of low-frequency oscillation of discharge current on a power processing unit can be reduced. The connection relation of the excitation coil is that the positiveend of the coil is connected to the common ground of the thruster, and the negative end of the coil is connected to the negative end of an anode power supply, so that the current fluctuation of the excitation coil is reduced as much as possible. According to the discharge loop for reducing starting impact of the Hall thruster and the soft start method thereof, the starting impact of the Hall thruster can be greatly reduced, it is guaranteed that the thruster and the power processing unit can work stably and reliably for a long time, and the available ignition times of the Hall thruster is effectively improved.

The invention discloses a high-power inverter system, which comprises a plurality of branch circuits in parallel connection. Each branch circuit comprises a power processing unit, output filter inductors, a current transformer, a current detecting feedback unit, a voltage detecting feedback unit, a control unit and one or a plurality of driving units, wherein the power processing unit and the output filter inductors are in serial connection, an input end of the current transformer is connected with connection nodes of each output filter inductor, an input end of the current detecting feedback unit is connected with an output end of the current transformer, an input end of the voltage detecting feedback unit is connected with an output end of the high-power inverter system, one input end of the control unit is connected to an output end of the current detecting feedback unit, and another input end of the control unit is connected to an output end of the voltage detecting feedback unit, and the driving units are connected between an output end of the control unit and a driving port of each power processing unit and used for driving the power processing units. According to the technical scheme, software and hardware control circuits can be simplified, and cost is reduced while reliability of the system is improved.

The invention discloses a PCBA (printed circuit board assembly) detecting device and a detecting method. The detecting device comprises a code scanning gun, a clamp, a displayer, a control module, a server, a core control system, a digital multimeter module, a simulative battery module, a programmable direct current power module and a direct current electronic load, and others; the core control system comprises a power processing unit, a control unit, a sampling unit, a communication unit, a dry contact unit, a charging machine simulative unit, a small load unit, an insulation simulating unit, a switch matrix unit, a NTC detecting unit, a clock detecting unit and a digital input/output unit. The PCBA detecting device and the detecting method apply a brand-new software framework to realize the complete automation of the function testing process, and the resource is fully used; meanwhile, data is accessed to a MES system and can be checked at any time and any place in the era of unblocked network; moreover, the whole detecting device is convenient to operate and has the advantages of greatly improving the testing efficiency and reducing the testing cost of the factory PCBA.

The invention discloses a TDC-based pulse carrier frequency detecting device and method. The system comprises a signal conditioning unit, a band frequency dividing unit, a power and pulse envelope detecting unit, a TDC unit, a power processing unit, and a signal processing unit. The signal conditioning unit, the band frequency dividing unit, the TDC unit, and the signal processing unit are sequentially connected; the signal conditioning unit, the power and pulse envelope detecting unit, the power processing unit, and the signal processing unit are sequentially connected; and the band frequencydividing unit and the e signal processing unit are connected. Therefore, the frequency test cost of the pulse modulation signal is lowered; and the accuracy of the frequency test is improved. The capability of measurement of the pulse parameters like the pulse width, the rising time, and the falling time of the pulse modulation signal and the frequency of the continuous radio-frequency signal isenhanced; and power measurement of the pulse modulated signal and the continuous radio-frequency signal is provided.

Icon indicia are provided on input, output and plug-in power processing units to permit proper matching of plug-in units with each other and with the input and output power processing units in a power distribution system. The indicia are in a co-ordinated matrix format with input icons on a designated chroma background to identify input voltages and output icons on a second designated chroma background to identify output voltages. Icons and background chroma on the plug-in power processing units are coordinated with related icons and background chroma at the same matrix position on other plug-in units and/or the input and output units to assure the compatibility of all the units. A craftsman inserting a plug-in unit onto a shelf of the power chassis need merely compare the unit's icon and chroma background indicia with the input, output, or other unit's icons and associated chroma background indicia to be assured of inserting the correct plug-in unit into the particular shelf.

The invention relates to the field of computer network security communication, in particular to a realization method and a system of computer network security communication. The system adopted in theinvention takes a cell processor as a hardware system, takes the Power processing unit (PPU) in the cell processor as a client and takes each coprocessor unit SPUE as a network server to realize the transmission of data packet, wherein, the client takes an independent closed processor as a request terminal of the network communication and requests to carry out network communication with the otherclient, thus realizing performance monitoring on the network server and realizing the functions of performance monitoring, data transmission and device driving and the like by the network server.

The invention relates to RS232/RS485 Ethernet gateway equipment capable of extending port number freely, which comprises a host platform, an LED display unit, a power processing unit and a port configuration unit, wherein the host platform is based on an ARMCPU processing platform or an embedded Linux platform and is connected with a USB input/output interface; the extension is achieved through the USB input/output interface; and meanwhile, the host platform is connected with an Ethernet interface and is in butt joint with the Ethernet. The RS232/RS485 Ethernet gateway equipment capable of extending port number freely has the advantages that an RS485 port and an RS232 port can be extended freely, thus the engineering investment cost can be greatly reduced; the parameter of each port can be set through a computer by setting each port; and the Ethernet terminal acquires a virtual serial port corresponding to the equipment by installing drivers in windows, thus the equipment data can be read like the data is stored in the local computer.

A current-sharing backlight driving circuit for light-emitting diodes and a method for operating the same are disclosed. The current-sharing backlight driving circuit includes a class-E converter and a plurality of power processing units. The class-E converter receives a DC input voltage and produces an AC output voltage. The AC output voltage outputted from the class-E converter is converted into a DC driven voltage thorough the power processing units, thus driving the light-emitting diodes and providing a current-sharing backlight operation.

The invention provides a street lamp lighting control system based on the mobile phone WeChat. The system comprises a control center, a smart phone client, and a server unit. The control center is connected with and controls a plurality of distribution boxes, each distribution box corresponds and only corresponds to one controller, and each distribution box is connected with and controls a plurality of street lamps. The control center comprises a power processing unit, a data acquisition module, a data processing module, a signal control module, a display unit and a mobile phone WeChat unit. The control center reads the equipment states and parameters through the data acquisition module, processes data through the data processing module, and sends a lamp on/off control instruction according to a lamp on/off mode selected by the signal control module. According to the system, the smart phone client is additionally arranged on the basis of the control center, so that users do not need to focus on one fixed client operation end, and on-off and maintenance of street lamps can be managed more conveniently and flexibly by using the existing smart phones.

The invention discloses a profibus filed bus type electric actuating mechanism controller. The controller comprises: a power supply conversion unit, which is used for conversion between an external alternating current power supply and a system power supply; a power supply management unit, which is used for switching of power supply modes and charging management of a backup battery; a signal processing unit, which is used for collection and output of information; a power control unit, which uses a three-phase motor positive and reverse rotation controller as a main part and is used for drivingthe mechanism to make motions; a central processing unit, which is connected with the power supply conversion unit, a power management unit, a signal processing unit, and a power processing unit and is used for managing various control signals; a redundant Profibus communication interface, which is used for make communication with an upper-level monitoring system; a serial port and a port; besides, the serial port and the port are used for uploading and downloading of debugging information. According to the invention, the above-mentioned design scheme enables reliability and availability of an electric actuating mechanism based on a Profibus bus protocol to be substantially improved.

The present invention includes a metal housing, a power input end, a power output end, and an accommodating space thereinside between the power input end and the power output end, the accommodating space has a power processing unit mounted inside and the output terminal of the power processing unit is located at the power output end of the power supplier. The metal housing of the power supplier has an assembling opening mounted thereon and located above the accommodating space for assembling at least a heat dispersing device. The protection structure includes a fixing frame, mounted in the accommodating space and fixedly connected with two sides of the heat dispersing device and the metal housing, and a metal protection case, covered on the assembling opening and tightly engaged with the metal housing, wherein the metal protection case and the fixing frame respectively have positioning portions corresponding to each other.

A high-performance solid ablation type pulse plasma electric propulsion device comprises an energy-storing capacitor, a spark plug, an anode, a cathode, a propellant block, a power processing unit PPU, insulating materials, an anode current-conducting plate and a cathode current-conducting plate. The anode is connected with the anode of the energy-storing capacitor through the anode current-conducting plate, and the cathode is connected with the cathode of the energy-storing capacitor through the cathode current-conducting plate. The propellant block is arranged between the anode current-conducting plate and the cathode current-conducting plate. The insulating materials are also connected between the anode current-conducting plate and the cathode current-conducting plate and attached to the non-discharge side face of the solid propellant block. A V-shaped groove is formed in the center of the solid propellant block. The spark plug is mounted on the lower surface of the cathode current-conducting plate, and the spark plug corresponds to the V-shaped groove of the solid propellant block in position. An ignition port of the power processing unit PPU is connected with the spark plug, and a discharge port of the power processing unit PPU is connected with the cathode of the energy-storing capacitor. The high-performance solid ablation type pulse plasma electric propulsion device issimple in structure, large in discharge ablation area, good in electro-thermal and electromagnetic acceleration effect and capable of effectively improving the thrust performance.

Disclosed is an articulated harvesting combine of a forward power processing unit (PPU) having a forward set of wheel assemblies and a rear grain cart connected by an articulating joint assembly. Bonus sieves assemblies are located in the outer rear of the PPU for accepting grain from concaves and grates assemblies located forward of the bonus sieves assemblies. The bonus sieves assemblies accept tailings from the concaves and grates assemblies for additional separation of grain from material other than grain (MOG). New and separate airflow is provided for the bonus sieves. The bonus sieves tailings are returned to the bonus sieves for rethreshing, optionally after being particulated and air separation performed.

The invention discloses an ultra-temperature and ultra-rotation protection device and a control method thereof. The protection device comprises signal collecting circuit boards and a relay system, wherein the signal collecting circuit boards are used for conducting signal collecting and processing on the temperature and the rotating speed, and the relay system executes protection motion; a power processing unit, a rotating speed signal unit, a temperature signal unit and a processor unit are integrated to each signal collecting circuit board; the protection device is in dual-channel redundancy design, the signal collecting circuit boards collect the rotating speed and temperate signals at the same time, after the signals are collected, a processor does logic distinguishing on the signals, and the two channels are in communication; and when a set condition is met, corresponding relays move, and therefore the effect of protecting a marine engine of a gas turbine is achieved.

A display panel includes a display module accommodated in a housing and comprising an electric circuit mounted on the border the glass substrate thereof beyond the display zone and display driver IC chips electrically connected with the electric circuit, and a circuit board mounted in the housing at one side adjacent to the display driver IC chips and comprising a power processing unit for receiving and processing power supply to provide the circuit board and the display module with the necessary working power, a computing unit carrying therein an embedded system and electrically connected with the power processing unit for processing a network signal into a video signal and a connection module electrically connected with the computing unit for receiving an external network signal and running programmable digital signal transmission.

A wireless power receiver is disclosed. A wireless power receiver according to various embodiments of the present disclosure includes a resonant reception unit configured to receive wireless power by a resonance scheme; an inductive reception unit configured to receive wireless power by an induction scheme; and a power processing unit configured to process wireless power received at resonant reception unit and the inductive reception unit. When the wireless power is received by the induction scheme, a current flowing in the inductive reception unit is greater than a current flowing in the resonant reception unit, and when the wireless power is received by the resonance scheme, a current flowing in the resonant reception unit is greater than a current flowing in the inductive reception unit.