Abstract: There is provided be a brushless direct current, BLDC, electric motor. The BLDC electric motor comprises a rotor comprising a rotor shaft and a stator arranged around the rotor shaft. The stator comprises a stator hub comprising electromagnets, and cooling channels extending in a direction that is parallel to a longitudinal direction of the rotor shaft and the cooling channels are positioned between the rotor shaft and the electromagnets.

Abstract: There is provided a manufacturing method of a rotary electric machine, including: sintering each of a plurality of green compacts to obtain a plurality of sintered bodies; applying a grain boundary diffusion process on each sintered body by adhering an adhering material, which includes a heavy rare earth element, to at least one of a pair of planar surfaces of each sintered body, and then heating each sintered body to diffuse the heavy rare earth element into an inside of the sintered body; and forming a laminated body of a plurality of magnet segments by placing a corresponding one of the pair of planar surfaces of one of each adjacent two of the sintered bodies in contact with a corresponding one of the pair of planar surfaces of another one of the adjacent two of the sintered bodies.

Abstract: A motor rotor, a motor, and an electric vehicle are disclosed. The motor rotor includes an iron core yoke, a spoke plate, and at least two permanent magnets. The at least two permanent magnets are fastened to the iron core yoke and sequentially spaced apart in the circumferential direction. The spoke plate is located between adjacent permanent magnets. A quadrature-axis magnetic circuit is reserved between adjacent permanent magnets, and the spoke plate whose reluctance is less than that of air or the permanent magnet material is disposed on the quadrature-axis magnetic circuit, that is, the spoke plate is disposed between the adjacent permanent magnets. In this way, reluctance of the quadrature-axis magnetic circuit may be reduced, and quadrature-axis inductance may be increased. Accordingly, a reluctance torque is increased, and a torque output capability of the motor is improved.

Abstract: A rotor of a rotating electrical machine includes a cylindrical member; a magnetic material disposed inside the cylindrical member; a shaft member disposed on at least one of opposite ends of the cylindrical member in an axial direction of the cylindrical member and fixed to an inner peripheral surface of the cylindrical member with the shaft member located adjacent to the magnetic material in the axial direction of the cylindrical member; and a welding portion via which the cylindrical member and the shaft member are welded together. The shaft member has a fitting portion that is press-fitted onto the inner peripheral surface of the cylindrical member. The fitting portion is located closer to the magnetic material than to the welding portion. The welding portion is spaced from the fitting portion in the axial direction.

Abstract: A rotor assembly used in an electric motor, includes a rotor having an inner diameter, an outer diameter, and a plurality of rotor slots; a plurality of permanent magnets received within the rotor slots; and a rotor plate having an inner diameter, an outer diameter, and an outer lip extending away from a radial face of the rotor plate toward the rotor, wherein an adhesive bonds the rotor plate to a radial face of the rotor.

Abstract: A rotor and a shaft hole is located at a position in a rotor shaft within a range in an axial direction in which a rotor core is located, and a weir portion, the shaft hole, and a cooling medium discharge hole are located in this order from one side in the axial direction.

Abstract: In this rotor, a first end plate includes a first opening portion that is provided at a first position corresponding to a position where a crimped portion is not arranged, and is connected to a first oil flow path, and a second end plate includes a second opening portion that is provided at a second position corresponding to a position where the crimped portion is arranged, and is connected to a second oil flow.

Abstract: A rotating electrical machine according to the present invention has a plurality of segmented coils respectively disposed in a plurality of layers aligned in a row in a radial direction inside a slot of a stator core. The segmented coils comprise: first regions (111a, 121a) that each have a straight line section disposed inside the slot and a protrusion that protrudes to the outside of the slot from one end of the straight line section; and second regions (112a, 122a) that are formed so as to extend toward one side in the circumferential direction from the other end of the respective straight line section, and such that the position in the radial direction changes.

Abstract: A stator includes a core having a yoke having an annular shape, and teeth protruding toward a center of the yoke and provided at predetermined intervals in a circumferential direction of the yoke, a coil disposed to surround the teeth, a power line connected to a coil end portion of the coil, protruding in an axial direction of the core, and having one end and the other end, the power line having a terminal portion connected to the other end opposite to the one end connected to the coil end portion, a bent portion bent to extend in a predetermined direction, and a coating portion coating the bent portion over both ends of the bent portion, and a mold portion surrounding the coil end portion and integrally surrounding the coil end portion, the one end of the power line, and at least part of the coating portion.

Abstract: Proposed is an electric compressor for a vehicle configured such that an electrical connection structure between a winding coil of an electric motor and a sealing terminal that connects an inverter unit to the electric motor is improved, thereby being capable of increasing assemblability of a product and reducing a production cost. The electric compressor includes an electric motor provided with a stator, a rotor, and a rotary shaft, a compression unit configured to compress a refrigerant according to a rotation of the rotary shaft, an inverter configured to control driving of the electric motor, a sealing terminal electrically connecting the electric motor to the inverter, and a cluster integrally formed on a portion of the stator, the cluster having an inner portion thereof provided with multiple connection terminals for electrically connecting a coil wound on the stator to multiple connection pins provided at the sealing terminal.

Abstract: A covering means is provided for a component of an electrical drive system having or consisting of a first metallic layer, wherein the first metallic layer is equipped to be vibration-damping.

Abstract: A submersible-rated motor having a motor housing that encloses a stator and rotor and partially encloses a drive shaft. The motor has a terminal plate assembly, combined seal/bearing housing, rotating seal assembly, and drive-end and non-drive-end oil peelers configured to peel oil from the rotor while it is rotating. The motor incorporates first and second snap rings to secure the combined seal/bearing housing to the motor housing and the first ball bearing to the combined seal/bearing housing, respectively. The first ball bearing is situated inside of the combined seal/bearing housing on the drive shaft between the rotating seal assembly and the proximal end of the rotor. A second ball bearing is situated inside of the motor housing on the drive shaft between the distal end of the rotor and terminal plate assembly. The rotating seal assembly includes a single, self-lubricating rotating seal, seal spring and single-seal driver.

Abstract: A rotary electric machine is provided that includes a housing that forms an internal cavity that houses a rotor/stator assembly, in which the rotor is positioned on a main shaft of the machine, a lubricating fluid reservoir defining a hub portion defining an inner surface, and at least one roller bearing coupled to the main shaft and supported by the hub portion and by a bushing. The machine includes an oil ring fastened to the bushing and arranged between the main shaft of the machine and the inner surface of the hub portion, wherein the oil ring includes a wall having a substantially circular cross section and at least one elongate and inclined projection on an outer surface of the wall, each elongate and inclined projection having a lower edge and an upper edge and in which the rotation of the oil ring generates a pressure difference between the lower edge and the upper edge to force the lubricant towards the at least one roller bearing.

Abstract: A rotating electrical machine includes a cylindrical housing having a flow path configured to allow a refrigerant to flow therethrough, an inlet configured to allow the refrigerant to flow into the flow path, and an outlet configured to allow the refrigerant to flow out of the flow path. The flow path being formed so as to spirally surround a circumferential surface of the housing. The flow path includes: a first flow path that is formed along one end surface of the housing and formed such that a width along the circumferential surface increases along a flow direction of the refrigerant from the inlet; and a second flow path that is formed along the other end surface of the housing and formed such that a width along the circumferential surface decreases toward the outlet along the flow direction of the refrigerant.

Abstract: A vehicle drive device includes a rotary electric machine, an inverter device, and a case. The case includes a case body and a cover member. The case body is integrally formed so as to form a first housing chamber that houses the rotary electric machine and a second housing chamber that houses the inverter device, and has an opening that is open from the second housing chamber toward an outside of the case. The cover member is disposed so as to cover the opening, and includes a flat plate portion. A sheet-shaped damping member having a function of converting vibration into heat is attached so as to cover at least a part of the flat plate portion.

Abstract: A tube-in-tube structure (100) for linear motor machine is disclosed. The tube-in-tube structure comprises (a) an outer metrology frame (20) for responding for responding to sustain a payload (50) and to allow moving of the payload (50) thereon; (b) an inner force frame (10) being enclosed within the hollow capacity (22) of the outer metrology frame (20) and responding to transfer any reaction force exerted by the payload (50) to the bottom of the inner force frame (10), wherein the bottom end of the inner force frame (10) is mounted to the bottom end of the outer metrology frame (20) and such mounting is located to the ground. The inner force frame (10) transfers any reaction force exerted by dynamic motion generated by the linear motor machine directly to the bottom of the inner force frame (10), thereby vibration due to the linear motor motion is thus minimized or settled.

Abstract: The present disclosure relates to a covering, such as a casing, for a component of an electrical drive system. Components of this kind are, for example, the electric motor or the inverter of an electric motor. Both the inverter and the electric motor itself generate noise at high frequencies, for instance between 6 kHz and 12 kHz, due to the switch elements used in them. These noises should not escape to the exterior because they are disruptive in terms of both frequency and volume. The present disclosure shows a cover for absorbing these noises, that is cost-effective and can be arranged close to the electric motor and its components.

Abstract: A vehicle drive device includes a rotating electrical machine, an input shaft including a first gear and connected to a rotor shaft, a counter gear mechanism, a differential gear mechanism, a pair of output members, and a case. The input shaft includes: a first supported portion supported by the case via a first bearing located on a first side in an axial direction with respect to the first gear; a connection portion located on the first side in the axial direction with respect to the first supported portion and connected to the rotor shaft; and a small diameter portion located between the first supported portion and the connection portion and having a diameter smaller than an outside diameter of the first supported portion and an outside diameter of the connection portion.

Abstract: A rotation drive device includes a movable body portion having a rotor yoke formed in a ring shape and a ring-shaped rotor magnet in which a plurality of magnetic poles are arranged along a circumferential direction of an outer peripheral portion of the rotor yoke; a fixed body portion in which a plurality of stator core portions, each of which faces an outer peripheral portion of the movable body portion, are arranged in an inner peripheral portion of a stator formed in a ring shape at predetermined intervals along the circumferential direction; and a movable body support portion formed of a plurality of support rollers rotatably supporting the movable body portion by being fixed in position with respect to the stator and bringing a roller peripheral surface into contact with the outer peripheral portion or an inner peripheral portion of the movable body portion.

Abstract: Provided is a cooling structure for a rotary electric machine, the rotary electric machine including a ring-shaped stator, a rotor that is disposed to face the stator and is rotatable about a rotation axis, and a coil end formed in a side portion in an axial direction of the stator. The cooing structure includes a coil end cover that covers the coil end, is provided so as to be able to store a coolant therein, and has a coolant introduction hole through which the coolant is introduced and a coolant discharge hole through which the coolant stored in the coil end cover overflows and is discharged to the outside, and a coolant supply unit connected to the coolant introduction hole and configured to supply the coolant into the coil end cover.

Abstract: An internal cooling system for an electric motor comprising a Drive End, DE, casing and a Non-Drive End, NDE casing, a stator with stator laminations and stator slots, head windings and stator slot winding turns, the internal cooling system comprising a first liquid cooling channel and a second liquid cooling channel, a periphery casing liquid cooling jacket connected to the first liquid cooling channel and to the second liquid cooling channel, DE and a NDE casing liquid cooling jackets configured to be established inside the DE and NDE casings, respectively, and connected to the first liquid cooling channel and to the second liquid cooling channel, respectively, and a slot-through liquid cooling jacket connected to the NDE and a DE casing liquid cooling jackets and configured to be established through the stator slots and in contact with the head windings and the stator slot winding turns to extract winding losses.

Abstract: An electric generator includes a turbine wheel configured to receive process gas and rotate in response to expansion of the process gas flowing into an inlet of the turbine wheel and out of the outlet of the turbine wheel, a rotor coupled to the turbine wheel and configured to rotate with the turbine wheel, and a stationary stator, the electric generator to generate an alternating current upon rotation of the rotor within the stator. The electric generator can supply power to a power grid. During a low voltage event, current from the electric generator can be diverted to a brake resistor assembly. The brake resistor assembly can include a brake resistor designed to allow the electric generator to operate during the low-voltage event.

Abstract: A drive device includes: an electric motor; an electric motor temperature sensor that measures a temperature regarding the electric motor; a power control device; an oil circuit that cools the electric motor with oil circulated by an oil pump; an oil temperature sensor that measures a temperature of the oil; a water circuit that cools the power control device with water; a water temperature sensor that measures a temperature of the water; a heat exchanger that exchanges heat between the oil circuit and the water circuit; and a control device. The control device drives the power control device and the electric motor for heat generation when the temperature regarding the oil is equal to or lower than a first threshold value, and detects a failure based on transition of the temperature of the electric motor, transition of the temperature of the oil, and transition of the temperature of the water.

Abstract: A concrete vibrator system comprises a vibrating head including a shaft. The shaft has a center of mass that is radially offset from a rotational axis of the shaft. The vibrating head also includes an onboard electric motor configured to provide torque to the shaft, causing the shaft to rotate. The concrete vibrator system further comprises a portable power unit including a battery pack configured to provide electrical current to the motor. A cable extends between the portable power unit and the vibrating head. The cable is configured to transmit electrical current from the battery pack to the motor and a motor control signal from the portable power unit to the motor.

Abstract: A rotating electric machine includes a shaft angle sensor communicating with an external controller via differential signaling. This construction permits the controller to be located away from the axial end of the motor while reliably transmitting rotor angle or speed information to the controller over a relatively long electrical harness. The shaft angle sensor is mounted on a sensor board carried by the machine casing at the non-drive end of the rotor shaft. The sensor board can optionally act as a hub at which signals from multiple machine sensors are gathered to be placed in communication with the controller via the same electrical harness used to transmit the sensor information.

Abstract: A circuit for recapturing magnetic energy is provided. When a magnet approaches a coil, a switching circuit may activate an electrical path to direct current from a power source through the coil. When the magnet moves away from the coil, the switching circuit may deactivate the electrical path to substantially decrease current from the power source to the coil, a magnetic field induced in the coil may at least partially collapse, and energy from the at least partially collapsing magnetic field may be captured in the storage device, charging the storage device.

Abstract: The present invention relates to a brushless electric motor for rotating a fan of a motor-driven ventilation unit of a vehicle, the motor comprising a rotor, a stator equipped with at least two coils, a casing housing a power circuit (15) and a servo circuit (13) for controlling the power circuit.

Abstract: One embodiment provides an adapter for configuring device settings of a gas engine replacement device. The adapter includes a transceiver, a user interface, and an electronic processor. The electronic processor is configured to connect the adapter to the gas engine replacement device and generate a graphical user interface showing a plurality of configurable device settings. The electronic processor is also configured to receive user input to choose one or more device settings to configure and receive user input to configure the one or more device setting chosen and generate changed device settings. The electronic processor is also configured to transmit the changed device settings to the gas engine replacement device. The gas engine replacement device is then used to drive power equipment in accordance with the changed device settings.

Abstract: A method of manufacturing a laminated core in which an adhesive can be easily applied to gaps between laminated electromagnetic steel plates is provided. A method of manufacturing a laminated core according to the present disclosure includes a first step, a second step, and a third step. In the first step, an electromagnetic steel plate laminate is formed by laminating a plurality of electromagnetic steel plates in a lamination direction. In the second step, the electromagnetic steel plate laminate is excited in a direction intersecting the lamination direction. In the third step, an adhesive is applied to gaps between the plurality of electromagnetic steel plates in the electromagnetic steel plate laminate.

Abstract: A method for producing an electromagnetic component for an electric machine is provided. The method includes providing a metal sheet as a starting material; punching out a number of lamellae from the metal sheet; heat-treating the lamellae; and joining the heat-treated lamellae to form the component or a portion of the component. The electromagnetic component to be produced can be a laminated core, for example a stator core or a rotor core, and can be provided for use with the electric machine such as an electric motor.

Abstract: A stator for an electric machine includes a stator core having a plurality of slots formed therein and a multi-phase winding arrangement positioned on the stator core. The winding arrangement includes a plurality of cascaded conductors arranged in layers of the slots, the layers defining multiple layer pairs. The plurality of cascaded conductors form a plurality of parallel paths per phase, each of the parallel paths making multiple revolutions of the core with each revolution occurring within a layer pair. For each layer pair, a number of weaves (N) are formed between a first parallel path and a second parallel path in said layer pair, wherein N is greater than or equal to two.

Abstract: A method for at least partially encapsulating or embedding components by resin transfer molding includes: placing a component into a mold of a resin transfer molding device; and introducing an embedding material into the mold through a plurality of runners and/or sprues.

Abstract: A modular device that can operate as an electrical generator. First and second coil support plates are arranged in parallel orientation relative to each other forming a gap between the first and second coil support plates. Removable C-cores, each having wire coils, are removably attached to the first and second coil support plates. A rotor disc having selectively arranged magnets is disposed in the gap between the first and second coil support plates and is permitted to rotate about an axis that is perpendicular to the rotor disc and the parallel first and second coil support plates; a drive motor can power rotation of the rotor disc. As the disc rotates, electrical current is generated. The C-core assemblies can be interchanged, checked, removed and/or replaced while the electrical generator remains in operation without requiring cessation of such operation.

Abstract: In a multiphase armature winding provided in an armature that constitutes a rotating electric machine and that is configured by conductive wire material, the conductive wire material for each phase includes an assembly of strands having a conductor and an inner insulating layer of insulating material surrounding the conductor, and an outer insulating layer of insulating material surrounding the assembly of strands. The outer insulating layer is peeled off at an end of the conductive wire material. A tip of the conductive wire material at the peeled portion of the outer insulating layer is joined by welding or crimping to form a joint portion. At least a portion other than the joint portion, in the conductive wire material at the peeled portion of the outer insulating layer, is varnished.

Abstract: A high-speed hairdryer brushless motor includes an outer housing, a stator assembly and a rotor assembly. The stator assembly includes a stator core and a coil assembly. The stator core includes a yoke portion and a teeth portion. The teeth portion includes an inner cylinder body and N outer teeth. The inner wall of the inner cylinder body is a complete cylindrical surface. N magnetic insulating grooves are provided on the outer wall of the inner cylinder body, each magnetic insulating groove being provided axially along an entire length of the inner cylinder body. The coil assembly is wound on the outer teeth of the teeth portion. Each magnetic insulating groove is a V-shaped groove that opens toward the exterior of the inner cylinder body. The rotor assembly includes a rotating shaft and a rotor magnet. An air gap is provided between the rotor magnet and the cylindrical surface.

Abstract: A bistable rotary magnet is proposed, comprising a rotor, wherein the rotor comprises a permanent magnet having differently polarized magnetic poles opposed with respect to the axis of rotation, wherein the stator comprises two pole shoes extending along the axis of rotation, wherein the permanent magnet includes a first pole surface and a second pole surface at each magnetic pole and each of the two pole shoes includes a first pole surface and a second pole surface, wherein in the first end position the first pole surfaces of the permanent magnet are aligned in parallel to the adjacent first pole surfaces of the pole shoes and in the second end position the second pole surfaces of the permanent magnet are aligned in parallel to the adjacent second pole surfaces of the pole shoes.

Abstract: A current detection circuit and a controller for a switching converter circuit are disclosed. An emulated current generation module emulates a current flowing through an inductor, and a current sampling module actually samples the inductor current. Moreover, an error determination module determines an error between the actually sampled and emulated currents and adjusts, based on the error, a rate of variation of the emulated current.

Abstract: A modulation device may include a variable burst regulator and a current-driven clock generator. The modulation device may include a first output terminal configured to provide a modulated voltage for an operating frequency over a modulation period. The current-driven clock generator may include a second input terminal configured to receive a buffered version of the modulated voltage. The current-driven clock generator may include a second output terminal configured to provide a modulated current during the modulation period. The operating frequency may be proportional to the modulated current. The operating frequency may control the operating frequency over the modulation period.

Abstract: Provided is a monitoring device for monitoring a control signal received by a power converter, the control signal controlling switches to supply an electrical load. The monitoring device includes a receiving circuit that receives the control signal comprising a merging of a first variable signal and a clock signal having a predetermined frequency greater than the first variable signal, a determining circuit that determines if a change of state of the control signal occurs during each period associated to the predetermined frequency, and a monitoring circuit that stops the transmission of the control signal to the power converter so that the power converter stops to supply the electrical load according to the instructions of the first variable signal if a change of state of the control signal does not occur during one period.

Abstract: The present disclosure relates to a power converting device and a home appliance including the same. A power converting device according to an embodiment of the present disclosure comprises a first capacitor, a first switching element turned on to output a first voltage stored in the first capacitor to a first node which is one end of an inductive load, a second switching element, one end of which is connected to the first switching element and which is turned on to decrease the voltage of the first node to the first voltage, a third switching element turned on to output a second voltage greater than the first voltage to the first node which is one end of the inductive load, and a fourth switching element, one end of which is connected to the third switching element and which is turned on to decrease the voltage of the first node to the ground voltage. Accordingly, switching loss may be reduced when power is supplied to an inductive load.

Abstract: An exemplary embodiment of the present disclosure provides a resonant module and sensing circuits for use with a soft-switching current source converter. The resonant module comprises a resonant switch, a resonant inductor, and a resonant capacitor. The resonant inductor is connected in electrical series with the resonant switch. The resonant capacitor is connected in parallel with the serially connected resonant switch and resonant capacitor. The resonant module further comprises first and second sensing circuits. The first sensing circuit is configured to generate a first sensing signal indicative of when the time derivative of a voltage across the resonant capacitor is negative. The second sensing circuit is configured to generate a second sensing signal indicative of when a voltage across the resonant capacitor is less than or equal to a predetermined threshold value.

Abstract: A controller used in an isolated switching converter having a transformer, a primary switch and a secondary switch. The controller has an ON-time control circuit. The secondary switch is turned on for a second ON-time after a current flowing through the secondary switch decreases to zero. The ON-time control circuit provides an ON-time control signal to control the second ON-time of the secondary switch based on a drain terminal voltage of the secondary switch, the output voltage of the isolated switching converter and a resistance of an external resistor outside of the controller.

Abstract: A semiconductor device includes a main circuit and a control circuit. The main circuit includes a plurality of series circuits that are connected in parallel to one another. Each series circuit includes a high-side switching element and a low-side switching element that are connected in series. The control circuit includes first to third input terminals through which a serial drive signal serving as a driving signal of each high-side switching element and each low-side switching element is inputted, a first clock signal, and a second clock signal are respectively inputted, and a plurality of output terminals. The control circuit holds the serial drive signal based on the first clock signal, and based on the second clock signal outputs, to each high-side switching element and each low-side switching element, parallel signals generated from the serial drive signal.

Abstract: A control circuit for a switching stage of an electronic converter is described. The control circuit includes a driver circuit configured to generate one or more drive signals as a function of a Pulse-Width Modulation, PWM, signal and a PWM signal generator circuit configured to generate the PWM signal. A first comparator asserts a comparison signal when a feedback signal having a voltage being indicative of a current flowing through an inductance of the switching stage is greater than a reference signal. In response to a clock signal, a storage element asserts the PWM signal, whereby the clock signal indicates the duration of the switching period of the PWM signal. Conversely, in response to determining that the comparison signal is asserted, the storage element de-asserts the PWM signal. Specifically, the reference signal is generated as a function of the voltage at a capacitance.

Abstract: A power system including an inverter comprising an LCL filter is disclosed. The LCL filter includes a first inductor, a capacitor, and a second inductor. The power system further includes a controller. The controller is configured to determine an electrical characteristic of an output of the inverter. It is further configured to, based at least in part on the determined characteristic of the output of the inverter, dynamically adjust damping of the LCL filter.

Abstract: A system for transferring DC electric power to a DC electric power system includes an electric power source, a DC-DC power converter, a system power bus including a capacitor, a first current sensor, a second current sensor, a third current sensor, and a controller. The DC-DC power converter includes a switched inductance circuit including an inductor, a high-voltage switch, and a diode. The second current sensor monitors a second current in the system power bus between the DC-DC power converter and the capacitor. The controller determines a parametric setpoint for the system power bus, determines the first current, the second current, and the third current in the system power bus, and controls the switching DC-DC power converter based upon the parametric setpoint, the first current, the second current, and the third current.

Abstract: In an embodiment a DC to DC conversion circuit includes a DC to DC converter connected to an input path and an output path and a current limiting circuit including a circuit configured to detect when an input or output current of the DC to DC converter exceeds or falls below a current threshold and a controller configured to store a first voltage level of an output voltage of the DC to DC converter in response to the input or output current exceeding the current threshold, to store a second voltage level of the output voltage in response to the input or output current falling below the current threshold and to set a control signal based on the first and second voltage levels.

Abstract: An integrated circuit for a power supply circuit that includes a detection resistor. The integrated circuit includes: a first pad; a first terminal coupled to the detection resistor, the first terminal being electrically connected to the first pad in a first case, and being electrically separated from the first pad in a second case; a first temperature detection circuit having a temperature detection element, and being configured to detect a first temperature based on a voltage of the temperature detection element; a second temperature detection circuit configured to detect a second temperature of the integrated circuit, based on a first voltage corresponding to a resistance value of the detection resistor, received through the first pad in the first case; and a circuit configured to operate based on results of detection of the second and first temperature detection circuits, respectively in the first case and in the second case.

Abstract: A surge protecting circuit is provided. A first stage filter circuit is connected to an alternating current (AC) source. A surge detection driver circuit is connected to a first stage filter circuit. A first snubber circuit is connected to the AC source. A first terminal of a first power switch is connected to the first snubber circuit. A control terminal of the first power switch is connected to the surge detection driver circuit. A first terminal of a second power switch is connected to a second snubber circuit. A second terminal of the second power switch is connected to an output terminal of the surge protecting circuit. A control terminal of the second power switch is connected to the surge detection driver circuit. A multi-stage filter circuit is connected to a second terminal of the first power switch and the second snubber circuit.

Abstract: A pulse width modulator circuit with circuitry for providing a first and second pulse width modulation signal with dead time periods between the first and second pulse width modulation signals, an input for receiving a signal representative of a current in a load adapted to be driven in response to the first and second pulse width modulation signals, and circuitry coupled to the input for adjusting the dead time periods in response to the signal representative of a current.