|| List of recent Anode-related patents
|Bioelectric battery for implantable device applications|
A bioelectric battery may be used to power implantable devices. The bioelectric battery may have an anode electrode and a cathode electrode separated by an insulating member comprising a tube having a first end and a second end, wherein said anode is inserted into said first end of said tube and said cathode surrounds said tube such that the tube provides a support for the cathode electrode.
|Solid oxide fuel cell having hybrid sealing structure|
A solid oxide fuel cell (“sofc”) sealed with a multi-layered hybrid structure, the sofc including: a cathode layer; a cathode current collector in contact with the cathode layer; an anode layer corresponding to the cathode layer; an anode current collector in contact with the anode layer; an electrolyte layer disposed between the cathode layer and the anode layer; a reaction barrier layer disposed between the electrolyte layer and the cathode layer; and at least two different types of sealing materials.. .
|Biological fuel cell and methods|
A fuel cell has an anode and a cathode with anode enzyme disposed on the anode and cathode enzyme is disposed on the cathode. The anode is configured and arranged to electrooxidize an anode reductant in the presence of the anode enzyme.
|Anode active material for secondary battery and method of manufacturing the same|
An anode active material for a lithium secondary battery having high-capacity and high-efficient charge/discharge characteristics. The anode active material includes silicon single phases; and silicon-metal alloy phases surrounding the silicon single phases.
|Secondary battery including integrated anode and cathode leads and method of manufacturing the same|
Provided is a secondary battery including integrated anode and cathode leads and a method of manufacturing the same. An anode lead and a cathode lead of a secondary battery aligned to be parallel with respect to each other are encompassed by a single lead film.
|Alkali metal intercalation material as an electrode in an electrolytic cell|
The present invention provides an electrochemical cell that includes an anolyte compartment housing an anode electrode; a catholyte compartment housing a cathode electrode; and a solid alkali ion conductive electrolyte membrane separating the anolyte compartment from the cathode compartment. In some cases, the electrolyte membrane is selected from a sodium ion conductive electrolyte membrane and a lithium ion conductive membrane.
|Composite plated film and laminated film|
It is provided a steel with composite plating film providing rust prevention over a long time period and a method of manufacturing thereof. A composite plating film 24 is formed on a metal material 21.
|Node device, communication method, and storage medium|
Anode device includes a receiver, a processor, memory, and a transmitter. The receiver receives a path information packet for notification of path information about a network.
|Lithium solid state secondary battery system|
The main object of the present invention is to provide a lithium solid state secondary battery system capable of restoring the decrease of output characteristics of a lithium solid state secondary battery without deteriorating an anode. The present invention attains the above-mentioned object by providing a lithium solid state secondary battery system including a lithium solid state secondary battery and an overdischarge treating unit, wherein an anode active material layer of the above-mentioned lithium solid state secondary battery contains an anode active material and a sulfide solid electrolyte material containing li, a (a is at least one kind of p, s, ge, al and b) and s and having an ortho-composition, and the above-mentioned anode current collector includes a metal..
|Light emitting device|
A light emitting device includes: a ceramic substrate; a plurality of led chips; a printed resistor(s) connected in parallel with the plurality of led chips; a dam resin made of a resin having a low optical transmittance; a fluorescent-material-containing resin layer; and an anode-side electrode and a cathode-side electrode, (a) which are provided on a primary surface of the ceramic substrate so as to face each other along a first direction on the primary surface and (b) which are disposed below at least one of the dam resin and the fluorescent-material-containing resin layer. With the configuration in which a plurality of leds, which are connected in a series-parallel connection, are provided on a substrate, it is possible to provide a light emitting device which can achieve restraining of luminance unevenness and an improvement in luminous efficiency..
|Multicolor light emitting diodes|
A device such as a multicolor light emitting diode that emits different colors of light and that may combine the different colors emitted by individual light emitting diodes. The multicolor led may include a common anode terminal that may be connected to each anode of the individual light emitting diodes.
|Organic luminescent display device|
An organic luminescent display device according to the invention includes: an element substrate; an organic film; and an organic electro luminescent element formed on the organic film. The organic electro luminescent element includes: an anode formed on the organic film; a light emitting layer formed on the anode; and a cathode formed on the light emitting layer.
|Oled pixel structure and oled panel|
The present disclosure provides an organic light emitting diode (oled) pixel structure and an oled panel. The pixel structure comprises a plurality of colored light emitting zones arranged in parallel.
|Capacitive conveyor-belt desalination|
Described herein is a novel deionization process for seawater desalination: seawater is contained in—or streams through—a semi-rectangular ionizing-chamber, two of its facing walls are wide electrostatic charged belts that continuously move through this chamber in a loop. The ions within the seawater separate under the force of the electrostatic field, the anions adhere to the anode belt and move with it, while the cations adhere to the cathode belt and move with it.
|Electroplating aid board and electroplating device using same|
An electroplating device includes a plating solution, at least one anode basket located in the plating solution, and a workpiece to be plated. An electroplating aid board is arranged between the anode basket and the workpiece to be plated.
|Method and system for the electrochemical co-production of halogen and carbon monoxide for carbonylated products|
The present disclosure is a system and method for producing a first product from a first region of an electrochemical cell having a cathode and a second product from a second region of the electrochemical cell having an anode. The method may include a step of contacting the first region with a catholyte including carbon dioxide and contacting the second region with an anolyte including a recycled reactant.
|Fuel cell comprising a proton-exchange membrane, having an increased service life|
A fuel cell includes a proton-exchange membrane, and a cathode and anode fixed on its opposite sides. The anode delimits a flow conduit between a molecular-oxygen inlet area and a water outlet area.
|Cell for fuel-cell battery using a proton exchange membrane, with gas diffusion layers of different rigidity at the anode and at the cathode|
A cell structure for a fuel-cell battery, which allows the compromise necessary between the reduction in the non-uniformities of mechanical stress to be optimized, with the aim of obtaining a more uniform operation, and the independent accommodation with respect to the defects in planarity/thickness/alignment, while at the same time meeting the compactness constraint, comprises: a membrane/electrode assembly comprising a first electrode and a second electrode separated by a membrane; a gas diffusion layer stacked on each face of the assembly, between an electrode of the assembly and a current collector plate; and the gas diffusion layers stacked on either side of the assembly do not have the same rigidity, one of the gas diffusion layers having a young's modulus relative to an applied stress in the direction of the thickness, greater than the young's modulus of the other layer, in a ratio of the order of at least 100.. .
|Fuel cell system having a pump and related method|
A portable fuel cell system and related method are disclosed. The system includes a fuel cell having an anode port through which passes an anode gas, a cathode port through which passes a cathode gas, and an exhaust port through which passes an exhaust gas.
|Solid oxide fuel cell power plant having a fixed contact oxidation catalyzed section of a multi-section cathode air heat exchanger|
The multi-section cathode air heat exchanger (102) includes at least a first heat exchanger section (104), and a fixed contact oxidation catalyzed section (126) secured adjacent each other in a stack association. Cool cathode inlet air flows through cool air channels (110) of the at least first (104) and oxidation catalyzed sections (126).
|Fuel cell system having an air quality sensor suite|
A fuel cell system having an air quality sensor suite includes a fuel cell having an anode and a cathode, a fuel source providing a fuel flow, a fuel flow rate sensor having a fuel flow rate sensor output, a fuel flow control device, a fuel oxidizer flow conduit, a first mixing region coupled to the fuel source and the fuel oxidizer flow conduit, an anode chamber coupled to the anode, a combustion oxidizer flow conduit, a second mixing region coupled to the combustion oxidizer flow conduit, and at least one oxidizer flow rate sensor having an oxidizer flow rate sensor output. The system further includes at least one oxidizer pump, an air quality sensor having an air quality sensor output, and a control system coupled to the fuel flow rate sensor output, the oxidizer flow rate sensor output, and the air quality sensor output..
|Full cell system and method of humidifying and cooling the same|
A method of humidifying and cooling a fuel cell system is provided. The method of humidifying and cooling a fuel cell system includes: exhausting, by a fuel supply unit, a hydrogen gas to a reservoir in which condensed water of an anode is stored.
|Lithium secondary battery|
A lithium secondary battery including an anode active material including mesoporous tio2 doped with a heteroatom.. .
|Alginate-containing compositions for use in battery applications|
A silicon-based anode comprises an alginate-containing binder. The many carboxy groups of alginate bind to a surface of silicon, creating strong, rigid hydrogen bonds that withstand battery cycling.
|Combined electrochemical and chemical etching processes for generation of porous silicon particulates|
Embodiments of the present disclosure pertain to methods of preparing porous silicon particulates by: (a) electrochemically etching a silicon substrate, where electrochemical etching comprises exposure of the silicon substrate to an electric current density, and where electrochemical etching produces a porous silicon film over the silicon substrate; (b) separating the porous silicon film from the silicon substrate, where the separating comprises a gradual increase of the electric current density in sequential increments; (c) repeating steps (a) and (b) a plurality of times; (d) electrochemically etching the silicon substrate in accordance with step (a) to produce a porous silicon film over the silicon substrate; (e) chemically etching the porous silicon film and the silicon substrate; and (f) splitting the porous silicon film and the silicon substrate to form porous silicon particulates. Further embodiments of the present disclosure pertain to the formed porous silicon particulates and anode materials that contain them..
|Redox flow battery|
A redox flow battery including a cathode cell having a cathode and a catholyte solution; an anode cell having an anode and an anolyte solution; and an ion exchange membrane disposed between the cathode cell and the anode cell, wherein the catholyte solution and the anolyte solution each include an electrolyte, wherein the electrolyte includes a plurality of metal-ligand coordination compounds, wherein at least one of the metal-ligand coordination compounds includes two or more different ligands, and wherein a dipole moment of the metal-ligand coordination compound is greater than 0.. .
|Power conversion circuit|
A power conversion circuit includes a high side switching device connected at its collector to the high potential side of a power supply, a low side switching device connected at its emitter to the lowpotential side of the power supply, a first junction to which the emitter of the high side switching device and the collector of the low side switching device are connected, a first diode connected at its cathode to the collector of the high side switching device, a second diode connected at its anode to the emitter of the low side switching device, a second junction to which the anode of the first diode and the cathode of the second diode are connected, an inductance connected between the first and second junctions, and a snubber circuit connected to the first junction and adapted to absorb stored energy in the inductance when a freewheeling current flows.. .
|Bootstrap circuit and method for controlling the same|
A bootstrap circuit includes: a charging voltage source; a charging diode, having an anode coupled to the charging voltage source; a high-voltage transistor, having a control terminal defined as a first connecting node and a channel coupled between a cathode of the charging diode and a bootstrap capacitor; a logic control circuit, having a first and a second logic outputs, and a logic input for receiving a charging command; a high-voltage control transistor, having a control terminal defined as a second connecting node and a channel coupled between charging voltage source and the first connecting node; a cut-off resistor, coupled between the first and the second connecting nodes; a charging control transistor, having a channel coupled between the second connecting node and a ground terminal, and a control terminal coupled to the second logic output; a control capacitor, coupled between the first connecting node and the first logic output.. .
The object of the presently disclosed embodiment is to improve heat dissipation and an overall cooling efficiency to raise a peak oscillation output. To achieve the object, there is provided a coaxial magnetron having the following configuration: around a cathode, vanes and an anode cylinder form an anode resonant cavity, and a cylindrical side body forms an outer cavity.
|Magnetron and device using microwaves related applications|
The magnetron according to the present invention includes an anode portion, a cathode portion arranged in a central portion of the anode portion, an output antenna connected to the anode portion, an exhaust pipe arranged around the output antenna to serve as a part of a vacuum tube, and an antenna cap covering a chip-off portion included in the exhaust pipe. The antenna cap and the exhaust pipe are welded to each other..
|Finfet compatible diode for esd protection|
A diode for integration with finfet devices is disclosed. An in-situ doped epitaxial silicon region is grown on the cathode or anode of the diode to increase the surface area of the junction and overall silicon volume for improved heat dissipation during an esd event..
|Active led module with led and transistor formed on same substrate|
An led module is disclosed containing an integrated driver transistor (e.g, a mosfet) in series with an led. In one embodiment, led layers are grown over a substrate.
|Organic electroluminescence element|
An organic electroluminescent element includes a light-emitting layer between an anode and a cathode. The light-emitting layer contains a phosphorescent light-emitting organic metal complex and at least one host compound.
|Organic light-emitting diode device|
An organic light-emitting diode device includes a substrate, a patterned anode layer, an organic semiconductor layer and a cathode layer. The patterned anode layer is disposed on the substrate.
|Ion induced impact ionization detector and uses thereof|
Disclosed are systems, devices and methodologies relating to an ion induced impact ionization detector and uses thereof. In certain implementations, the detector can include a dielectric layer having one or more wells.
|Spad sensor circuit with biasing circuit|
A deep spad structure uses the substrate as the anode terminal of its multiplication p-n junction. A bias voltage for the spad (in excess of the spad's breakdown voltage) is coupled to the spad's cathode terminal.
|Proximity sensor and method of sensing a distance of an object from a proximity sensor|
A proximity sensor may include an array of geiger mode avalanche photodiodes, each including an anode contact and a cathode contact. A common cathode contact may be coupled to the cathode contacts of the array to define a first connection lead at a back side of the array.
|Self-formed nanometer channel at wafer scale|
A mechanism is provided for fabricating nanochannels for a nanodevice. Insulating film is deposited on a substrate.
|Plating apparatus, nozzle-anode unit, method of manufacturing plated member, and fixing apparatus for member to be plated|
A plating apparatus includes a plating bath, an insoluble anode located in the plating bath, a plating electric power supply being capable of applying a voltage between the insoluble anode and the member to be plated, an anode-displacement mechanism being capable of moving the insoluble anode in the plating bath and of holding the insoluble anode at a predetermined position in the plating bath, and a controller having an anode-position controller being capable of generating a control signal for controlling an action of the anode-displacement mechanism and of outputting the control signal to the anode-displacement mechanism.. .
|Actuation of valves using electroosmotic pump|
A method of actuating a valve, comprises operatively coupling the valve with an electroosmotic pump; flowing a fluid through the electroosmotic pump; and generating a fluidic pressure of at least 0.75 psi to actuate the valve, wherein the electroosmotic pump comprises one or more thin, porous, positive electroosmotic membranes and one or more thin porous, negative electroosmotic membranes; a plurality of electrodes comprising cathodes and anodes, and a power source; wherein each of the positive and negative electroosmotic membranes are disposed alternatively and wherein at least one of the cathodes is disposed on one side of one of the membranes and at least one of the anodes is disposed on the other side of the membrane and wherein at least one of the cathodes or anodes is disposed between a positive and a negative electroosmotic membrane.. .
|Power generation system and method of stopping power generation system|
A gas turbine including a compressor and a combustor, an sofc including an air electrode (cathode) and a fuel electrode (anode), a first compressed air supply line adapted to supply a compressed air compressed by the compressor to the combustor, a second compressed air gas supply line adapted to supply a part of a compressed air compressed by the compressor to the air electrode (cathode), a first fuel gas supply line adapted to supply a fuel gas to the combustor, a second fuel gas supply line adapted to supply a fuel gas to the fuel electrode (anode), a fuel gas recirculation line adapted to return an exhausted fuel gas discharged from the fuel electrode (anode) to the fuel electrode (anode), a cooler provided in the fuel gas recirculation line are provided.. .
|Production of fungal extracellular immune stimulating compounds|
A process is described for the production of an immunostimulant by submerged cultivation of ganoderma lucidum in which mycelium from agar plates or a fermentation broth is added to a liquid medium in a shake flask or a bioreactor containing nutrients such as malt extract, yeast extract, peptone and glucose having access to air or to which air is added, and which is kept in constant movement at approx. 28° c.
|Fuel cell system with anode recycling|
A fuel cell system including: a fuel cell assembly; a fuel feed conduit; a gas feed conduit; an anode exhaust. The anode exhaust conduit is in fluid communication with the fuel feed conduit and at least a portion of a fluid in the anode exhaust conduit is recycled to the fuel feed conduit.
|High temperature fuel cell system with integrated heat exchanger network|
A fuel cell system includes a plurality of fuel cells arranged into a stack. A combustor receives a cathode exhaust flow from the fuel cell cathodes and a flow of fuel.
|Use of ammonia as source of hydrogen fuel and as a getter for air-co2 in alkaline membrane fuel cells|
Embodiments of the invention provide an ammonia operated fuel cell system including an alkaline membrane fuel cell (amfc) having an anode, and an ammonia thermal cracker including a combustion chamber, the cracker being in gas communication with an ammonia source, and configured to provide a supply of h2 directly to the amfc anode.. .
|Lithium ion battery|
A lithium ion battery includes a cathode, an anode, and an electrolyte sandwiched between the cathode and the anode. The cathode includes a cathode active material.
|Battery with an anode preloaded with consumable metals|
A method is provided for fabricating a battery using an anode preloaded with consumable metals. The method forms an ion-permeable membrane immersed in an electrolyte.
|Battery anode with preloaded metals|
A method is presented for fabricating an anode preloaded with consumable metals. The method provides a material (x), which may be one of the following materials: carbon, metals able to be electrochemically alloyed with a metal (me), intercalation oxides, electrochemically active organic compounds, and combinations of the above-listed materials.
|Composite anode of lithium-ion batteries|
The present invention provides a composite anode for a battery comprising a copper current collector working electrode, at least one anode material comprising at least one of a carbon, a silicon, a conductive agent, and combinations thereof, wherein at least one anode material is deposited on a surface of the copper current collector working electrode to form the composite anode for a battery. An electrophoretic method for making this anode is provided.
|Advanced, high power and energy battery electrode manufactured by co-extrusion printing|
A battery has an anode, a separator adjacent the anode, and a cathode adjacent the separator opposite the anode, the cathode comprising interdigitated stripes of materials, one of the materials forming a pore channel.. .
|Electrode assembly of stair-like structure|
Disclosed herein is an electrode assembly mounted in a battery case of a secondary battery. The electrode assembly is configured to have a structure in which a cathode and an anode are stacked in a state in which a separator plate is disposed between the cathode and the anode.
An electrochemical cell is presented. The cell includes a housing formed of a metallic material.
|Electrochemical device with improved cycle characteristics|
Disclosed is an electrochemical device. The electrochemical device includes: (a) a composite separator including a porous substrate, a first porous coating layer coated on one surface of the porous substrate, and a second porous coating layer coated on the other surface of the porous substrate; (b) an anode disposed to face the first porous coating layer; and (c) a cathode disposed to face the second porous coating layer.
|Lithium secondary battery cell structure|
A lithium secondary battery that has a battery cell structure, with improved electrochemical stability between an electrode and an electrolyte. In addition, the lithium secondary battery improves ion conductivity while applying a solid electrolyte.
|Secondary battery comprising insulator|
Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, a plurality of fine pores having a size that allows permeation of an electrolyte solution, but does not allow permeation of foreign materials, and a plurality of strip or bead shaped protrusions disposed in transverse and/or longitudinal directions on one or both surfaces of the insulator.. .
|Safety apparatus of battery module for vehicle|
Disclosed herein is a safety apparatus of a battery module for a vehicle. The apparatus includes a plurality of cell terminals which includes an anode terminal and a cathode terminal of a battery cell and the cell terminals are disposed diagonally adjacent to each other.
|Hybrid battery system for electric and hybrid electric vehicles|
A disclosed energy storage system for an application having an energy requirement and a power requirement may include a first component configured to provide the energy requirement of the application and a second component configured to provide the power requirement of the application. At least one of a volume, mass, weight, or cost of the combination of the first component and the second component may be less than a volume, mass, weight, or cost needed for either the first component or the second component to provide the energy requirement and the power requirement of the application.
|Device and method for coloring anode coatings using the coloring device|
A device for applying a magnetic field to a container comprises an adjustable magnetic field generator. The adjustable magnetic field generator is adjacent to the container and has a magnet having one magnetic pole adjacent a wall of the container and another magnetic pole away from the wall of the container.
|Method of manufacturing solid electrolytic capacitor|
A method of manufacturing a solid electrolytic capacitor having an even conductive polymer layer includes the steps of forming a conductive polymer layer on an anode element by bringing a dispersion containing a conductive solid and a first solvent into contact with the anode element having a dielectric film formed thereon, washing the anode element with a second solvent higher in boiling point than the first solvent, in which the conductive solid can be dispersed, after the conductive polymer layer is formed, and drying the anode element washed with the second solvent at a temperature not lower than the boiling point of the first solvent and lower than the boiling point of the second solvent.. .
An x-ray tube includes a vacuum tube. A field emission cathode structure and an anode spaced from each other are located in the vacuum tube.
|Apparatuses and methods for generating distributed x-rays|
An apparatus and method to generate distributed x-rays. A hot cathode of an electron gun is used in vacuum to generate electron beams having certain initial movement energy and speed.
|Power apparatus for x-ray tube, power system with the power apparatus, and method of operating the same|
A power system with a power apparatus for an x-ray tube is disclosed. The power system includes an x-ray tube and a power apparatus for the x-ray tube.
A strobe device having small variations in the amount of light includes the following components: a flash discharge tube having an anode on one side and a cathode on the other side, the cathode having a metal sintered body at an end thereof; a conductive reflector composing an external trigger electrode, and storing a part of the flash discharge tube; and a trigger coil having a primary winding and a secondary winding around a hollow core. A portion of the cathode of the flash discharge tube not including the metal sintered body is inserted into the core of the trigger coil.
|Apparatus for storing electric energy and method of manufacturing the same|
Disclosed herein is an apparatus for storing an electric energy, the apparatus including: an electrode stack in which a cathode and an anode in which a cathode lead and an anode lead are respectively formed are alternately stacked; and collector plates disposed at both sides of the electrode stack, connected to the cathode lead and the anode lead, and provided with external terminals and one or more electrolyte flow holes.. .
|Method for producing electrolytic capacitors from valve metal powders|
A process for producing an anode for an electrolytic capacitor includes pressing a tantalum powder around a tantalum wire, a tantalum ribbon, or a tantalum sheet to form a pressed body. The pressed body is sintered to form a porous sintered body.
|Temperature detecting circuit, temperature compensating circuit, and buffer circuit|
A temperature detecting circuit includes a first rectifying element with a cathode at a first reference voltage and an anode connected to a first node, a first impedance element connected in series with a second rectifying element between the first rectifying element and a second reference voltage, a third rectifying element with a cathode at the first reference voltage and an anode connected to a second node, a second impedance element and a fourth rectifying element connected in series between the third rectifying element and the second reference voltage, and a differential amplifier that outputs a differential signal pair corresponding to the difference in potential between the first node and the second node. The differential signals in the pair vary in magnitude in opposite directions in response to temperature changes..
|High frequency switching device, and bias voltage outputting device|
A high frequency switch device includes a branch transmission line corresponding to each output terminal provided with a switching part. In the branch transmission line, the switching part includes a transmission side diode provided in such a manner that a cathode thereof is arranged on a side of an input terminal 41 and an anode thereof is arranged on a side of the output terminal, and a ground side diode provided in such a manner that a cathode thereof is grounded and an anode thereof is electrically connected between the output terminal and the transmission side diode in the branch transmission line.
|Test circuit for power supply unit|
A test circuit includes a power supply unit, a number of resistors, a switch, and a number of light-emitting diodes (leds). A first pin of the power supply unit is coupled to the switch.
|Connector position device|
A connector position device includes a light emitting diode (led) and a switch. The led is fixed facing a connector of a motherboard.
|Ion source using field emitter array cathode and electromagnetic confinement|
An ion source for use in a radiation generator tube includes a back passive cathode electrode, a passive anode electrode downstream of the back passive cathode electrode, a magnet adjacent the anode, and a front passive cathode electrode downstream of the passive anode electrode. The front passive cathode electrode and the back passive cathode electrode define an ionization region therebetween.
|Array structures for field-assisted positron moderation and corresponding methods|
Apparatuses and methods for the moderation of positrons are provided herein. The apparatus may include a structure consisting of linear arrays of electrode and semiconductor structures of generally planar or cylindrical form with vacuum gaps between each element electrode.
|Particle acceleration devices with improved geometries for vacuum-insulator-anode triple junctions|
For high-voltage devices such as particle accelerators, novel geometries for a triple-junction at which an insulator, an anode and a vacuum meet are disclosed. A singularity in the electric field at the triple-junction is eliminated, reducing dielectric flashover and allowing the devices to operate at higher voltages without breakdown.
|Dc motor module and power driving device thereof|
A power driving device includes six semiconductor switches and three reverse breakdown diodes. The semiconductor switches has a first end and a second end respectively, and the semiconductor switches are three upper arm semiconductor switches and three lower arm semiconductor switches, wherein end first ends of the upper arm semiconductor switches are electrically connected together, and the second ends electrically connected to each coil of a three-phase coil assembly; the second ends of the lower arm semiconductor switches electrically connected together, and the first ends electrically connected to the second ends of the upper arm semiconductor switches respectively; each diode has an anode and a cathode, wherein the anodes are electrically connected to the second ends of the upper semiconductor switches respectively, and the cathodes are electrically connected to the first ends of the upper arm semiconductor switches respectively..