Abstract: In a drive unit (10) of an adjuster (80) of a vehicle seat, in particular of a motor vehicle seat, having at least an electronically commutated motor (12) and a gear stage (14) provided on the output side of the motor (12), wherein the motor (12) has a stator (16) and at least one rotor (22, 24) rotating around an axis (A) and interacting magnetically with the stator (16), two rotors (22, 24) are provided which rotate in different directions, wherein the gear stage (14) bears directly at least one rotor (22, 24).

Abstract: A cover assembly for one end of a rotating electrical machine includes a one-piece cover formed of plastic material attached to an end frame supporting at least one electrical component to protect said electrical component from external damage, the cover has an end wall and an axially extending side wall, the side wall has an end surface that engages the end frame; a mounting boss is disposed at the end frame; and a single fastener extends through the end surface. A clamp load at the single fastener securely holds the cover relative to the end frame.

Abstract: The invention relates to a spindle motor having a hydrodynamic bearing system, particularly to drive platters in a hard disk drive, the platters being disposed on a rotor, and the bearing system being formed by a bearing sleeve arranged on a baseplate and a shaft rotatably supported in an opening in the bearing sleeve and at least one thrust plate connected to the shaft. A liquid lubricant is filled into a bearing gap formed between the shaft, the thrust plate and the bearing sleeve. The invention is characterized in that the thrust plate rests directly against the rotor and is accommodated in an annular recess in the bearing sleeve facing the rotor.

Abstract: A cored motor includes a rotor (21), having a rotor hub (2), a shaft (1) fixed to the rotor hub (2), a rotor yoke (5) in ring shape and a ring magnet (6) fixed to an inner circumferential surface of the rotor yoke (5). A stator (3) has a motor base (13) and a stator core (14) and a sleeve (9) in cylindrical shape fixed to the motor base (13) respectively. A surface of the rotor hub (2) in the motor base side is provided with a recessed portion (23) having an annular shape and a raised portion (24) that protrudes continuously or intermittently in an annular shape. The rotor yoke (5) is fixed to the recessed portion (23) and the ring magnet (6) contacts the raised portion (24) and fixed to the rotor yoke (5). Respective center lines of the rotor yoke (5), the ring magnet (6) and the stator core (14) are aligned in a longitudinal direction along the shaft (1) and are made approximately coincidental with each other.

Abstract: Reinforcing body retainers are formed on an inner peripheral surface near a tip and near a root of first and second claw-shaped magnetic poles. Reinforcing bodies have a trapezoidal base portion and a pair of wing portions formed on two sides of the base portion, and slits are formed completely across a width direction of the base portion at a central portion in a height direction of the trapezoidal shape of the base portion so as to be offset toward a base of the trapezoidal shape. The reinforcing bodies are disposed so as to contact the inner peripheral surfaces of the first and second claw-shaped magnetic poles with a magnet housed and supported in each of the wing portions, and a D ring is fitted into the slits of the reinforcing bodies.

Abstract: In a motor stator, teeth radially project from an annular stator core, and a plurality of slots formed between adjacent teeth are skewed. Phase windings alternately pass through slots having different skew directions, wherein the length of bridging portions, which do not contribute to generation of torque, is short and the length of the portions which are located in the slots, and which contribute to the generation of torque, is long. Further, the phase windings are bent at an obtuse angle at opposite ends of the bridging portions.

Abstract: Metallic laminations for magnetic circuits. Some of the illustrative embodiments may be a magnetic circuit comprising a low reluctance magnetic flux path comprising a plurality of stacked metallic laminations (each lamination having an edge), and an air gap in operational relationship to at least a portion of the edges of the stacked metallic laminations (wherein magnetic flux flows at least partially through the stacked metallic laminations and the air gap). Adjacent edges of the stacked metallic laminations are intentionally offset by an amount greater than manufacturing tolerance of edge position for the stacked metallic laminations to improve eddy current loss occurring from lamination-to-lamination contact at the edges.

Abstract: A stator segment for a stator assembly includes a stack of substantially identical laminations and a containment structure receiving a portion of the stacked laminations. The containment structure includes a flexible hinge element. The containment structure can include a first containment structure member having a first pocket for receiving a portion of the stack of substantially identical laminations and a second containment structure member having a second pocket for receiving a different portion of the stack of substantially identical laminations than the first pocket. In some embodiments, the stack of substantially identical laminations includes two ends and a middle portion extending between the ends. The containment structure can include a first containment structure member for capping one end of the stack of substantially identical laminations and a second containment structure member for capping the other end of the stack of substantially identical laminations.

Abstract: Devices and methods are provided for a motor stator. One embodiment for a stator includes a frame for stator windings that includes a hub, spacing members, a rim and posts for receiving and positioning windings of a stator coil. A thermoset material is supplied to the stator to encapsulate the stator.

Abstract: An electrically commutated motor for a fuel pump having a rotor connected to a shaft and having plastic-bonded ferrite, with a fuel-resistant shaped body formed by the plastic-bonded ferrite, and a magnetic return element adjustable in relation to the shaped body.

Abstract: In a surface acoustic wave device, electrode films constituting at least one IDT are disposed on a piezoelectric substrate, and an SiO2 film is arranged on the piezoelectric substrate so as to cover the electrode films. The film-thickness of the electrode films is in the range of about 1% to about 3% of the wavelength of an excited surface acoustic wave.

Abstract: In a method and a circuit arrangement for operating an ultrasound oscillator with a constant oscillation amplitude wherein an excitation voltage U, whose frequency is disposed outside the resonance frequency of an ultrasound oscillation system, is applied to the ultrasound oscillator which includes components forming therewith an oscillation circuit for generating an excitation current I, whose size is adjusted by changing the frequency of the excitation voltage U to a predetermined value, the level of the excitation voltage U is detected by a voltage sensor and the predetermined value of the size of the excitation current I is set depending on the level of the excitation voltage U.

Abstract: A piezoelectric thin-film resonator includes a film laminate formed on a device substrate, the film laminate including a lower electrode, a piezoelectric film provided on the device substrate and the lower electrode, and an upper electrode provided on the piezoelectric film. At least one of the upper and lower electrodes has an electrode leading portion that extends from an membrane in which the upper electrode overlaps with the lower electrode through the piezoelectric film and has a width narrower than that of the membrane.

Abstract: A method of manufacturing a lamination-type piezoelectric element includes forming a ceramic laminated body in which ceramic layers and inner electrode layers are alternately laminated on each other. A pair of outer electrodes are respectively joined to a pair of joining faces formed on an outer circumferential face of the ceramic laminated body. A belt-shaped outer circumferential groove portion coming into contact with an outer circumferential end portion of at least some part of the inner electrode layers is formed on the outer circumferential face of the ceramic laminated body. This outer circumferential groove portion has at least one dent portion protruding from the adjoining portion. The outer circumferential groove portion has at least one of an insulating portion made of insulating material and a conductive portion made of conductive material.

Abstract: The microelectromechanical system (MEMS) element (101) comprises a first electrode (31) that is present on a surface of substrate (30) and a movable element (40). This overlies at least partially the first electrode (31) and comprises a piezoelectric actuator, which movable element (40) is movable towards and from the substrate (30) by application of an actuation voltage between a first and a second position, in which first position it is separated from the substrate (30) by a gap. Herein the piezoelectric actuator comprises a piezoelectric layer (25) that is on opposite surfaces provided with a second and a third electrode (21,22) respectively, said second electrode (21) facing the substrate (30) and said third electrode (22) forming an input electrode of the MEMS element (101), so that a current path through the MEMS element (101) comprises the piezoelectric layer (25) and the tunable gap.

Abstract: The present invention provides a piezoelectric/electrostrictive device including a pair of thin plate sections in an opposed relation to each other, a fixing section for supporting the thin plate sections, and at least one pair of piezoelectric/electrostrictive elements are provided to the pair of thin plate sections. The thin plate sections include movable sections having end surfaces in an opposed relation. Recesses are formed between the thin plate sections and the fixing section and/or the movable sections.

Abstract: A piezoelectric/electrostrictive device that includes a base 11 having a pair of right and left movable parts 11a, 11b and a fixing part 11c disposed at one end thereof as well as piezoelectric/electrostrictive elements 12a, 12b disposed on the sides of the movable parts 11a, 11b of the base 11 is fabricated to have a construction with fewer components. The piezoelectric/electrostrictive device having a construction with fewer components is provided by adopting a base 11 having an integral structure formed by bending an original plate stamped into a shape that delineates a plane development of the base, as the base of the piezoelectric/electrostrictive device. In addition, in this piezoelectric/electrostrictive device, piezoelectric/electrostrictive elements are arranged on inner sides of a pair of left and right movable parts. Accordingly, destruction of the piezoelectric/electrostrictive element can hardly occur and high reliability of the piezoelectric/electrostrictive device is achieved.

Abstract: An energy scavenging apparatus comprises a frame which can be human-carried or human-borne; plural cantilevered bimorph piezoelectric members connected to the frame to have an essentially parallel orientation, each cantilevered bimorph piezoelectric member comprising a proximal end connected to the frame and a distal end; and, a mass member connected to the distal end of the plural cantilevered bimorph piezoelectric members.

Abstract: A potassium niobate deposited body includes an R-plane sapphire substrate, a buffer layer composed of a metal oxide and formed above the R-plane sapphire substrate, a lead zirconate titanate niobate layer formed above the buffer layer, a potassium niobate layer or a potassium niobate solid solution layer formed above the lead zirconate titanate niobate layer, an electrode layer formed above the potassium niobate layer or the potassium niobate solid solution layer, and another substrate formed above the electrode layer.

Abstract: For a component operating with acoustic waves, it is proposed to arrange the electrode structure over a mechanically stable adaptation layer that serves to dissipate the electromechanical stresses. Further improvements of the output compatibility are achieved with additional intermediate layers and passivation layers applied on the sides or the entire surface over the electrode structure.

Abstract: A resonator. The resonator includes a bottom electrode overlaying at least part of a substrate, a composite structure overlaying at least part of the bottom electrode, and a top electrode overlaying at least part of the composite structure. The composite structure comprises a piezoelectric layer and a compensation layer, and the compensation layer includes silicon dioxide combined with boron.

Abstract: A surface mount type piezoelectric vibrator comprises a piezoelectric vibrator having a piezoelectric vibrating piece bonded to an airtight terminal with a lead terminal and sealed by a cylindrical bottomed metal sealing tube. An electrode terminal is connected to the lead terminal so that a tip of the electrode terminal is disposed approximately at the same position as a tip of the lead terminal in a longitudinal direction of the surface mount type piezoelectric vibrator. The piezoelectric vibrator is coated with a mold resin.

Abstract: An electric lamp having a base at one end, a lamp bulb sealed in a vacuum-tight manner, the lamp bulb being surrounded by an envelope part, a base having electrical connections bearing on one side the outer bulb and on the other side the envelope part, having the following features: a) the base has a base insulator which has a central opening in which the outer bulb is accommodated without cement; b) the base insulator has a circular, radially projecting segment having an upper and lower plateau which is associated with the base; c) on the base side the envelope part has a circular opening having a radially projecting edge which has a lower and an upper contact surface in relation to the base, the lower contact surface matching the upper plateau; and d) the envelope part is fixed to the base via a cement-free, mechanical retaining mechanism.

Abstract: A coated luminescent material having a luminescent material powder formed by grains, the luminescent grains being coated, and the coating being at most 5 nm, preferably at most 2 nm.

Abstract: An electric lamp assembly 10 for emitting near infrared radiation includes a reflector housing 20 and a lamp vessel 24 positioned within the reflector housing. A source of illumination 28 is enclosed within the lamp vessel. A continuous multi-layer interference film 40 on an exterior surface 42 of the lamp vessel transmits near infrared radiation within the range of 850-1100 nm and is substantially non-transmissive towards visible radiation.

Abstract: The present invention provides an array-like flat lighting source, which has an array of field emitter elements. The structure of the array of field emitter elements includes a substrate and a plurality of field emitter elements. The substrate has a plurality of grooves formed thereon and each of the field emitter elements is disposed in one of the grooves. The present field emission lighting source is spacer free, and its upper and lower substrates can be made of a same material to facilitate the maintenance of the vacuum. The array of field emitter elements can have an auxiliary conductive line for repair to guarantee normal operation of the light source if one of electrode lines becomes open.

Abstract: Light-emitting devices, and related components, systems and methods are disclosed. A light-emitting device can include a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region. During use of the light-emitting device, light generated by the light-generating region can emerge from the light-emitting device via a surface of the first layer. The light-emitting device can have an edge which is at least about one millimeter long and can be designed so that a quantum efficiency of the light-emitting device is substantially independent of the length of the edge.

Abstract: An organic light-emitting device is manufactured, which is formed laminating an electroluminescent layer (111) including an electroluminescent organic compound and a cathode (109) sequentially on anode (101). The electroluminescent layer (111) has a hole blocking layer (106), and this hole blocking layer (106) is formed of two or more kinds of materials. It is possible to manufacture a high-efficiency and high-reliability organic light-emitting device by introducing the hole blocking layer like this.

Abstract: A phosphor mixture containing four or more kinds of phosphors including a red phosphor, an orange phosphor, a blue phosphor, and a green phosphor, to produce emission having excellent color rendering of white light at a high color temperature, and emission in warm white which is low in color temperature, and a light emitting device including the phosphor mixture and a light-emitting section, CaAlSiN3:Eu and CaAl2Si4N8:Eu are manufactured as a red phosphor and an orange phosphor respectively, and ZnS:Cu, Al, and BAM:Eu are prepared as a green phosphor and a blue phosphor respectively. The emission spectrums of these phosphors are measured and a relative mixing ratio at which the correlated color temperature of the phosphor mixture becomes a targeted color temperature is determined from the emission spectrum by simulation, and a phosphor mixture is obtained by weighing and mixing the respective phosphors based on the simulation result.

Abstract: The present invention uses a substrate for an optical element comprising a light scattering unit that scatters visible light, and a light transmissive opening that transmits the visible light in a light transparent substrate transmitting the visible light, as a light extraction substrate of the organic electroluminescence element. With this, a substrate for an optical element, an organic electroluminescence element, and an organic electroluminescence display device are provided that improves the light extraction efficiency to outside of the substrate and also improves the light extraction efficiency by obtaining a high luminance organic electroluminescence element.

Abstract: An organic electroluminescent display panel includes one or more organic electroluminescent elements and a substrate supporting them. Each organic electroluminescent element has first and second display electrodes and one or more organic functional layers of organic compounds sandwiched and layered between the first and second display electrodes, the organic functional layers including a light-emitting layer. Such display panel has a high-molecular compound film covering the organic electroluminescent elements and a surface of the substrate around the one or more organic electroluminescent elements; and an inorganic barrier film covering the high-molecular compound film, an edge thereof, and a surface of the substrate around the high-molecular compound film.

Abstract: First, a plurality of organic EL elements are formed on a substrate. The electron injection electrode of an organic EL element has a stacked layer structure of a metal thin film and a metal oxide film. A sealing agent is provided on the upper portion and outer periphery of the plurality of organic EL elements on the substrate, so as to surround the entire perimeter of the plurality of organic EL elements. A sealing plate is bonded to the upper face side of the sealing agent with a color filter sandwiched therebetween. As the sealing agent, a resin adhesive is used from which a solution extracted in accordance with the SEMI standard G29-1296 after curing has a pH of not less than four nor more than ten. It is preferable that the resin adhesive has a light transmittance of 70% or more on average in the wavelength range of 450 nm to 800 nm, with the variation range of the light transmittance in the wavelength range of 450 nm to 800 nm being not more than ±10% for the average light transmittance.

Abstract: An organic electro-luminescence display (OELD) includes first and second substrates facing each other and having a display region and a non-display region, a first stacking layer in the display region, the first stacking layer including an array layer disposed on the first substrate and having a thin film transistor, a connection pattern connected with the array layer, and an emitting diode disposed on the second substrate and connected with the connection pattern, and a second stacking layer between the first and second substrates and in the non-display region, the second stacking layer corresponding to the first stacking layer.

Abstract: An energy-saving assembly of an elongate low-pressure mercury vapor discharge lamp (1) and at least one elongate extension (2). The low-pressure mercury vapor discharge lamp includes a light-transmitting discharge vessel (10) enclosing, in a gastight manner, a discharge space (15) provided with a filling of mercury and a rare gas mixture. The rare gas mixture includes at least 50% by volume of krypton. The discharge vessel is provided with a luminescent layer (13). Electrodes (4a; 4b) are arranged in the discharge space for maintaining a discharge in the discharge space. The extensions are provided for connection to the low-pressure mercury vapor discharge lamp. The extension includes an inductance (3). The length of the low-pressure mercury vapor discharge lamp together with the length of the extension is adapted to fit a pre-determined mounting distance of tow-pressure mercury vapor discharge lamps.

Abstract: A Plasma Display Panel (PDP), in which the precision level in shaping the display electrodes is improved by changing the shape of the transparent electrode, includes: address electrodes formed on a first substrate, barrier ribs defining discharge cells in a space between the first substrate and a second substrate and display electrodes, formed on the second substrate in a direction crossing the address electrodes, including a pair of line portions arranged on both sides of each discharge cell and having a pair of protrusion portions, facing each other, extending from the respective line portions toward the center of each discharge cell. The pair of the protrusion portions has rounded contours at both corners of each protrusion portion facing the paired protrusion portion and its radius R1 of curvature at the corner satisfies the following condition: 0.05a=R1=0.2a, where a is a width of the protrusion portion measured in the extending direction of the line portion.

Abstract: A plasma display panel having a new structure is provided. The plasma display panel includes a rear substrate, a front substrate spaced apart from the rear substrate, barrier ribs disposed between the front substrate and the rear substrate and defining a plurality of discharge cells, first discharge electrodes extending in a first direction and including a plurality of first loops surrounding the discharge cell, second discharge electrodes extending in a second direction, and including a plurality of second loops surrounding the discharge cell, and crossing the first discharge electrodes, and phosphor layers disposed in the discharge cells. The first discharge electrodes may operate as an address electrode, and the second discharge electrodes may operate as a scan electrode. The first loop and the second loop may have elliptical and circular shapes, respectively.

Abstract: An alloy for a lead member is used for an electric lamp having a metal/vitreous material interface. Molybdenum or tungsten serving as an electric lamp current conductor is used as a base for the lead member, wherein the molybdenum or tungsten contains titanium oxide or other oxides. Automotive bulbs use this alloy for a lead member.

Abstract: The invention relates to a non-automotive-headlight lamp (1) comprising a lighting element (3) and a transparent bulb (2), which is at least partly equipped with an interference coating (4) for e.g. changing the color or color temperature of the lamp (1), and to a lighting unit (15) comprising such a lamp (1) being mounted in a reflector (12). But the invention is also related to lighting units (15) where the interference coating (4) is not applied to the lamp (1) but to the reflector (12). In these lamps (1) or lighting units (15) light components (8) not appropriately filtered by the interference coating (4) lead to undesired wavelengths in the illumination beam and/or to a compromised color uniformity of the beam. Such light components (8) may stem from missing or insufficient filters on part of the lamp (1), from non-normal incidence of the rays (8) on the filter (4), and, in reflectors (12) with interference coating (4), from direct light (8) not hitting the reflector (12).

Abstract: A system (10) is provided herein for monitoring the harmonic content of the RF signal delivered to an RF powered device (13). The system comprises (a) a voltage transducer (16) adapted to sample the voltage of the RF signal and to output a first signal representative thereof, (b) a current transducer (17) adapted to sample the current of the RF signal and to output a second signal representative thereof, and (c) a memory device (67) in communication with at least one, and preferably both, of the aforementioned transducers 16 and 17 and which contains calibration information specific to the transducers.

Abstract: Methods and apparatus for generating strongly-ionized plasmas are disclosed. A strongly-ionized plasma generator according to one embodiment includes a chamber for confining a feed gas. An anode and a cathode assembly are positioned inside the chamber. A pulsed power supply is electrically connected between the anode and the cathode assembly. The pulsed power supply generates a multi-stage voltage pulse that includes a low-power stage with a first peak voltage having a magnitude and a rise time that is sufficient to generate a weakly-ionized plasma from the feed gas. The multi-stage voltage pulse also includes a transient stage with a second peak voltage having a magnitude and a rise time that is sufficient to shift an electron energy distribution in the weakly-ionized plasma to higher energies that increase an ionization rate which results in a rapid increase in electron density and a formation of a strongly-ionized plasma.

Abstract: Systems and methods presented herein provide for the control of electrical energy discharge from an electrode. In this regard, a sensor detects electrical energy discharged from the electrode and generates an electronic signal representative of a detected electrical energy discharge. Such a sensor may detect an electric field and/or light from the electrical energy discharge. The sensor may generate the electronic signal therefrom for subsequent processing. Accordingly, the system also includes a controller communicatively coupled to the sensor to determine a spurious discharge of the electrical energy discharge from the electrode. The controller processes the electronic signal to control at least one characteristic (e.g., voltage) of the electrical energy provided to the electrode. The controller may change a voltage of the electrical energy to the electrode in response to determining a spurious discharge of the electrical energy discharged from the electrode.

Abstract: A DC/AC converter circuit structure for driving a plurality of cold cathode fluorescent lamps is described. A common-mode choke is used between the cold cathode fluorescent lamps. The common-mode choke balances the currents respectively flowing through the cold cathode fluorescent lamps.

Abstract: A separately-excited inverter circuit includes: an oscillator which generates a high-frequency voltage pulse by mixing a high-frequency voltage pulse of a first frequency and a high-frequency voltage pulse of a second frequency different from the first frequency; and a transformer drive part which buffers an output signal of this oscillator, and inputs the signal to a primary side of a transformer. The inverter circuit includes a capacitor which is connected in parallel with an output of a secondary side of the transformer. When used for lighting the backlight of a liquid crystal display, the present invention can improve the lighting characteristics of the backlight with a long cold-cathode tube.

Abstract: A lamp module has a base with first and second electrical contacts for inserting into a socket in alternate orientations. A printed circuit board is mounted to the base and has a reverse polarity circuit coupled to the first and second electrical contacts for converting a DC potential across the first and second electrical contacts to a power supply voltage. A current regulator has a first terminal receiving the DC power supply voltage from the reverse polarity circuit. A programming circuit provides a programming current to a second terminal of the current regulator to generate an output current in response to the programming current. An LED matrix is mounted to the base and has an input coupled for receiving the output current of the current regulator. The LED matrix has interconnected LEDs which emit a light intensity in response to the output current of the current regulator.

Abstract: A discharge lamp lighting apparatus, comprises a DC power supply, an inverter circuit, connected to the DC power supply, and provided with at least two switching devices, and a discharge lamp energized by the inverter circuit, wherein one switching device has an on-duty complementarily different with an on-duty of the other switching device, and wherein the inverter circuit executes a switching operation in that the on-duty of the one switching device substitutes with the on-duty of the other switching device.

Abstract: A superstructure for accelerating charged particles at relativistic speeds. The superstructure consists of two weakly coupled multi-cell subunits equipped with HOM couplers. A beam pipe connects the subunits and an HOM damper is included at the entrance and the exit of each of the subunits. A coupling device feeds rf power into the subunits. The subunits are constructed of niobium and maintained at cryogenic temperatures. The length of the beam pipe between the subunits is selected to provide synchronism between particles and rf fields in both subunits.

Abstract: An apparatus for producing a beam of charged particles is provided, which comprises an emitter (1, 2) and a switching device (3) adapted to switch between first, second and third beam current levels, wherein the beam current at said first current level is suitable for writing a pixel of an image on the surface of a sample, the beam current at said second current level is suitable for not writing a pixel on the surface of said sample, and the beam current at said third current level is lower than the beam current at the second current level.

Abstract: A motor is disclosed that operates on either AC outlet power or DC battery power with decreased power drop when switching between AC and DC power. The AC power to the motor may be stepped down by using a clipper circuit, while the DC power supplied to the motor may be increased by switching motor field windings from a series wound circuit to a parallel wound circuit. The motor may be used in a vacuum motor embodiment, or in other consumer devices that utilize electric motors.

Abstract: In an electromagnetic driver according to the invention, electromagnetic units are arranged in the axial direction of a shaft, and a power supply change-over device is so formed that, when an attractive magnetic field arises between the coil unit and the magnetic unit of the one of the electromagnetic units, a repulsive magnetic field is generated between the coil unit and the magnet unit of the other of the electromagnetic units. As the polarity is alternately changed over by the power supply change-over device when a direct current is supplied to the exciting coils of the electromagnetic units, the coil unit or the magnetic unit reciprocates, and further the shaft reciprocates in the axial direction.

Abstract: [Problem] In a conventional rotating electrical machine to perform starting and power generation, an inverter and a rotating electrical machine body are constructed to be separate bodies, and a three-phase harness is provided between the rotating electrical machine and the inverter, and by a voltage drop or loss in this portion, there have been limitations in the improvement of starting and power generation output, and efficiency at the time of same operating current (determined by thermal limitation of the inverter). [Means for Resolution] Since an inverter unit 22 is integrally attached to a rear bracket 44 and is integrally mounted on the end face of a rotating electrical machine 20 in an axial direction, harnesses to be connected can be made short, and reduction in weight of the harness and improvement in resistance to outer disturbance noise can be realized.