Abstract: Embodiments of the invention relate generally to electromagnetic devices and, more particularly, to the compression of stator core laminations using wire rope members and to stator cores and electromagnetic devices employing such wire rope members. In one embodiment, the invention includes: affixing a first end of a wire rope member to a first flange plate disposed adjacent a first end of a plurality of stator laminations; affixing a second end of the wire rope member to a second flange plate disposed adjacent a second end of the plurality of stator laminations; tensioning at least one of the first end or the second end of the wire rope member against at least one of the first flange plate and the second flange plate to exert a compressive force against the first flange plate, the second flange plate, and the plurality of stator laminations.

Abstract: A stepping motor comprises: a first plate having plural band connection portions; a second plate mounting a band; a stator; and a structure that the stator is held by the first plate and the second plate from a front side and a back side of axial direction, wherein the plural band connection portions are positioned at a side surface of the stator and extend toward the second plate, and each of the plural band connection portions has an engagement portion at an outside thereof, the band has plural arms extending toward the first plate and engaging with the engagement portion of each of the plural band connection portions, and the band is connected to the first plate by engaging the arm portions with the engagement portions in a condition that the band holds the second plate and the stator.

Abstract: A rear frame has a fastening portion, which radially extends from an outer peripheral surface of the rear frame and receives a fastening force of a through bolt. A circuit board, which includes a control circuit, is installed to an axially outer surface of a main body of the rear frame. A reinforcing portion is provided in the fastening portion to limit deformation of the main body of the rear frame, which is induced by the fastening force of the through bolt.

Abstract: An assembly for supporting a motor of a vehicle powertrain includes a housing, a stator secured to the housing, a bearing having a radial position established by the housing, a member contacting the bearing, and a rotor secured to the member and including a radial outer surface spaced radially from the stator by an air gap established by contact between the bearing and the member.

Abstract: The blower comprises: a blower case; a motor case; and a shaft pierced through the both cases. A first communication hole, which is formed in one of axial end faces of the motor case, introduces a part of compressed air into the motor case. A second communication hole, which is formed in the other axial end face of the motor case, discharges the compressed air to outside of the motor case. An external guidance path introduces the discharged air toward an outside face of the motor case. By actuating a motor, the compressed air, which has been introduced from the blower case into the motor case via the first communication hole, is discharged from the second communication hole, and the discharged air is introduced by the external guidance path and blown out toward the outside face of the motor case.

Abstract: A rotor assembly for a permanent magnet electric machine includes a plurality of rotor laminations joined to form a rotor body. Each of the plurality of rotor laminations includes a plurality of slots. One or more permanent magnets are mounted within respective ones of the plurality of slots. Each of the one or more permanent magnets includes a thermal enhancement bonding coating. A method of forming a rotor assembly is also disclosed.

Abstract: A stator of an electrical machine provides a sensor carrier having a spring element that presses the sensor element against one of the coils.

Abstract: A system to monitor the temperature of power electronic devices in a motor drive includes a base plate defining a planar surface on which the electronic devices and/or circuit boards within the motor drive may be mounted. The power electronic devices are mounted to the base plate through the direct bond copper (DBC). A circuit board is mounted to the base plate which includes a temperature sensor mounted on the circuit board proximate to the power electronic devices. The temperature sensor generates a digital signal corresponding to the temperature measured by the sensor. A copper pad is included between each layer of the circuit board and between the first layer of the circuit board and the sensor. The circuit board also includes vias extending through each layer of the board. The copper pads and vias establish a thermally conductive path between the temperature sensor and the base plate.

Abstract: A squirrel-cage rotor includes a laminated core provided on an outer circumference of a rotational axis, and a plurality of slots formed in the laminated core in a circumferential direction, so as to be spaced apart from each other. The cross-section shape of each slot includes an inner circumferential edge and an outer circumferential edge extending in the circumferential direction so as to face each other, and a first side portion and a second side portion extending in a radial direction so as to face each other. The radius of curvature of the inner circumferential edge is larger than that of corners on an inner circumferential side of the slot. The radius of curvature of the outer circumferential edge is larger than that of corners on an outer circumferential side of the slot.

Abstract: An electric machine has a stator and a rotor. The stator has a housing and at least one pair of magnetic poles. Each magnetic pole has a primary magnet and two auxiliary magnets disposed on respective sides of the primary magnet. All of the magnets are disposed on an inner surface of the housing. All the magnets of a magnetic pole have the same polarity.

Abstract: An inner diameter of a third stator core is greater than an inner diameter of a second stator core. When a first stator core, the second stator core, and the third stator core are placed in an inner periphery of a coil, a jig is inserted from an inner-periphery opening of a first end side of the third stator core into the third stator core to directly position the first stator core, the second stator core, and the third stator core in a radial direction. Therefore, a side force generated by an axis deviation between the first stator core, the second stator core, and the third stator core can be reduced.

Abstract: A DC-DC converter includes: an error amplifier for outputting an error between an output voltage and a predetermined voltage; a phase compensation impedance element for accumulating the error across one end to generate an error phase; a determination unit for determining whether the voltage output by the error amplifier is higher, or lower than a reference voltage that is consonant with the predetermined voltage, and outputting a determination signal indicating determination results; and a voltage setting unit for setting a voltage for one end of the phase compensation impedance element higher than a lower output voltage limit for the error amplifier when the determination signal indicates that the voltage output by the error amplifier is lower than the reference voltage, or for canceling setting of the voltage when the determination signal indicates that the voltage output by the error amplifier is higher than the reference voltage.

Abstract: The invention relates to a method for commutating from a reverse-conducting IGBT (T1) operated in the diode mode to a reverse-conducting IGBT (T2) operated in the IGBT mode. According to the invention the reverse-conducting IGBT (T1) operated in the diode mode is turned off only at the instant a current starts to flow in the reverse-conducting IGBT (T2) operated in the IGBT mode. Accordingly said commutation method is event-driven, as a result of which it is less sensitive to poorly toleranced operating times.

Abstract: An example controller for a power supply includes a first circuit and a drive signal generator. The first circuit receives a first signal representative of a switch current flowing through a switch of the power supply and then generates a second signal in response the switch current not reaching a current threshold within an amount of time. The second signal indicates when a dimming circuit at an input of the power supply is utilized. The drive signal generator generates a drive signal to control switching of the switch in response to the second signal, where energy is transferred across an energy transfer element of the power supply in response to the switching of the switch.

Abstract: A charge and discharge signal circuit includes: high side transistors connected in series; low side transistors connected in series; high side drive circuits; low side drive circuits; and a drive signal generation circuit, wherein each drive circuit includes: a level shifter; a capacitor switch string connected in series, being connected in parallel with the transistor; and a drive part, to which an output of the level shifter is supplied, at least one pair of neighboring ones of the level shifters are commonly formed, and two neighboring ones of the drive parts receive a same output from the common shifters.

Abstract: Various enhancements to grid-interactive inverters in accordance with embodiments of the invention are disclosed. One embodiment includes input terminals configured to receive a direct current, output terminals configured to provide an alternating output current to the utility grid, a controller, an output current sensor, and a DC-AC inverter stage comprising a plurality of switches controlled by control signals generated by the controller. In addition, the controller is configured to: generate control signals that cause the switches in the DC-AC inverter stage to switch a direct current in a bidirectional manner; measure the alternating output current; perform frequency decomposition of the output current; and generate control signals that cause the switches in the DC-AC inverter stage to switch current in a way that the magnitude of a plurality of unwanted current components is subtracted from the resulting output current.

Abstract: A short protection circuit for protecting a power switch. The short protection circuit has a transistor and compares a differential voltage between a first end of the power switch and a second end of the power switch to a threshold voltage of the transistor only when the power switch is in an ON state; and wherein when the differential voltage is higher than the threshold voltage, the short protection circuit turns off the power switch.

Abstract: A power factor correction circuit includes an inductor L1, a diode D1, a switch Q3 and a controller 24. An input voltage Vin is applied to the inductor L1 which is cyclically discharged through the diode D1 by the operation of the switch Q3. The method of operation includes: operating a controller 24 to obtain an indication of the voltage across the switch Q3, monitoring the indication of the voltage across the switch Q3 to determine when the inductor L1 reaches a discharged state in response to the switch being in an off state, and the switch Q3 being controlled by the controller 24 to vary the on period of the switch Q3, during which the inductor is charged, for adjusting an output voltage Vbus towards a target value Vbus—target. The controller 24 monitors at least one of the indication of the voltage across the switch Q3 and the ratio of the switch on period Ton to the switch off period Toff for detecting that the input voltage Vin has a low value.

Abstract: A capacitor discharging circuit and a converter are disclosed. The converter comprises: a capacitor connected between the live line and null line of an AC power input terminals, a conversion module coupled to the capacitor and comprising an energy storage component at least, an energy transfer unit coupled with the energy storage component and the capacitor, an AC power-off detecting unit and a control unit; wherein the energy transfer unit comprises a switch device; when AC power is disconnected, the AC power-off signal triggers the control unit to output a switch driving signal, controlling the operation of the energy transfer unit to transfer the energy stored in the capacitor to the energy storage component to discharge the capacitor.

Abstract: A power converter includes a rectifier and a power factor corrector. The rectifier is to be coupled to an alternating current power source and is configured to output a rectified signal. The power factor corrector includes a correcting circuit and a control circuit. The correcting circuit receives the rectified signal and is configured to generate an output voltage based on the rectified signal and a driving signal. The control circuit is configured to generate a first to-be-compared signal based on the rectified signal, to generate a second to-be-compared signal based on the output voltage, to compare the first and second to-be-compared signals, and to generate the driving signal based on a result of comparison performed thereby.

Abstract: A resonant converter with power factor correction includes a power-obtaining circuit, an energy-storage element and an energy-transferred circuit. The power-obtaining circuit is used for receiving an input line voltage. The energy-storage element is coupled between the power-obtaining circuit and the energy-transferred circuit. The energy-transferred circuit is used for generating an output power. In a first time period, based on a first control signal, the energy-storage element and the power-obtaining circuit operate a soft switching so that the energy-storage element is charged to obtain the input line power and generate an energy-storage voltage. In a second time period, based on a second control signal, the energy-storage element and the energy-transferred circuit operate a soft switching so that the energy-storage element is discharged to make the energy-storage voltage converted into the output power.

Abstract: An energy-scavenging interface receives an input signal from a transducer and supplies an output signal to a load. A switch is connected between the transducer and a reference node, and a diode is connected between the transducer and the load. A control circuit closes the switch for a time interval to permit energy storage in the transducer. A scale copy of a peak value of stored electric current is obtained. The switch is opened when the time interval elapses and the stored energy exceeds a threshold. The stored energy is then released to supply the load through the diode. The switch remains open as long as the value of current in the output signal exceeds the value of the scaled copy of the peak value.

Abstract: A power supply circuit and a display device are provided. The power supply circuit includes: a load, a DC power supply; a DC booster circuit; a load feedback circuit configured to generate a converted voltage in accordance with the current passing through the load, integrate the converted voltage to generate an integrated voltage and generate a first triggering signal in accordance with the integrated voltage; and a control circuit configured to generate a second triggering signal in according with the boosted voltage, a DC power supply voltage and a reference voltage, generate a switching signal for controlling the operation of the DC booster circuit in accordance with the first triggering signal and the second triggering signal, and output the switching signal to the DC booster circuit.

Abstract: A valley-fill circuit with active conduction angle control allows use of a single storage capacitor instead of two. The capacitor is charged to the maximum voltage of the AC cycle, which makes possible use of low-capacitance high-voltage low ESR capacitors, increases energy storage density and decreases circuit footprint. This makes it feasible to use ceramic capacitors, such as a multilayer ceramic (MLCC), polyethylene, polypropylene, or any suitable capacitor type in addition to electrolytic capacitors. This improves the operational longevity and reduces the footprint of the circuitry.

Abstract: A constant on time control circuit, configured to control a converting circuit to transform an input voltage into a stable output voltage, is disclosed. The constant on time control circuit comprises a comparing circuit and a logic circuit. The comparing circuit compares a reference signal and a voltage signal indicative of the output voltage and accordingly outputs a compared result signal. The logic circuit periodically controls the converting circuit to perform voltage transformation and makes a time period of a duty cycle in every cycle being substantially constant. A start point in time of every cycle is determined according to the compared result signal. The comparing circuit comprises a differential pair, a base current source and an extra current source. The base current source provides a bias current to the differential pair. The extra current source provides a substantial ramp current to one channel in the differential pair.

Abstract: A power supply apparatus, comprising: a driver connected to a power source voltage and configured to perform an ON/OFF operation of power supply to a load; a digital control circuit configured to perform an ON/OFF control of the driver; and an oscillator configured to output an oscillator signal for performing the ON/OFF control of the driver every constant period. The digital control circuit operates in a normal control mode in which the output operation of the oscillator signal by the oscillator and the ON/OFF operation of the driver are continuously activated, or in a low power control mode in which the output operation of the oscillator signal by the oscillator and the ON/OFF operation of the driver are intermittently activated.

Abstract: A DC-DC converter including a Pulse Width Modulation (PWM) controller for converting an input voltage into an output voltage is provided. The PWM controller includes a first comparator, receiving a compensated error signal and a ramp signal, wherein when the compensated error signal exceeds the ramp signal, the first comparator generates a trigger signal. The PWM controller further includes a PWM generator coupled to the first comparator, providing a timing signal according to the trigger signal to control the operation of the DC-DC converter.

Abstract: Various embodiments of the present invention relate to an input output balanced bidirectional buck-boost converter and associated system and method. In one example, a DC/DC bidirectional buck-boost power converter has both input and output voltages centered around chassis. This converter allows for overlapping input and output voltages, and allows for use of offset based leakage fault detection.

Abstract: A voltage conversion circuit includes: a first voltage conversion unit configured to perform voltage conversion on an input signal, the voltage conversion causing a predetermined delay time, and supply a resultant signal as a first converted signal; a second voltage conversion unit configured to perform voltage conversion on the input signal, the voltage conversion causing a delay time that is different from the predetermined delay time, and supply a resultant signal as a second converted signal; and an output unit configured to generate and output an output signal corresponding to the first and second converted signals in a matching period of time in which voltages of the first converted signal and the second converted signal are matched with each other, and continuously output the output signal in a period of time excluding the matching period of time, the output signal being output in the matching period of time.

Abstract: The disclosure relates to inductors fabricated on a substrate. A first inductor is formed by depositing conducting material on a first side of the substrate and a second inductor is formed by depositing material on a second side of the substrate. The inductors have the same cross section and the paths of the conducting materials are mirror images and provide magnetic flux on a portion of the substrate when equal currents flow in the inductors.

Abstract: A converter arrangement (C.5, C.7, C.8, C.9, C.11, C.12) with at least two single LLC converters (L), a pulse generator (2) per single LLC converter (L) wherein each pulse generator (2) is configured to supply switching pulses to one single LLC converter (L) and an output controller (11) configured to use switching frequency control and/or phase-shift control to control the pulse generators (2) comprises a load balancing control (7.5, 7.7, 7.8, 7.9, 7.11, 7.12) for overcoming unbalanced loading of the converter arrangement (C.5, C.7, C.8, C.9, C.11, C.12).

Abstract: A circuit for sensing gate voltage of a power FET. A switching circuit includes a switching FET having a high voltage rating, its drain coupled to the gate of the power FET, and its source coupled to an output node. A first feedback loop is coupled to the gate of the switching FET to facilitate sensing rising gate voltage. A second feedback loop is coupled to the gate of the switching FET to facilitate sensing falling gate voltage.

Abstract: Embodiments of the invention provide a power supply apparatus, including an AC/DC rectifying unit converting an AC voltage into a DC voltage, a power factor correction unit correcting a power factor of the DC voltage, and a DC/DC conversion unit converting the DC voltage having the corrected power factor into a DC voltage having a different magnitude therefrom. According to various embodiments, the power supply apparatus further includes an auxiliary winding connected to a primary side winding of a transformer of the DC/DC conversion unit and generating the DC voltage having a predetermined magnitude, and an internal power generation unit connected to an output terminal of the power factor correction unit and the auxiliary winding and using a voltage of the output terminal of the power factor correction unit and a voltage generated by the auxiliary winding to generate temporary Vcc power and supply the generated temporary Vcc power as internal power of the power factor correction unit.

Abstract: A power supply having over power protection based on the same signal as used by the feedback path for controlling the switching of the power supply is disclosed. This means that no additional signal needs to be supplied to the control circuit to implement mains over protection.

Abstract: A method is disclosed of controlling a switched mode converter comprising a switch and for providing power to device having a load, comprising: in response to the load exceeding a first threshold, operating in a first mode, being a CCM; in response to the load exceeding a second threshold and not exceeding the first threshold, operating in second mode, being a BCM without valley skipping wherein the switching frequency increases with decreasing load; in response to the load exceeding a third threshold and not exceeding the second threshold, operating in a third mode, being a BCM with valley skipping, wherein the switching frequency depends on the load and the number of valleys skipped and is between a fixed upper and a lower switching frequency limit; and in response to the load not exceeding the third threshold, operating in a fourth mode, being a BCM with valley skipping, wherein the switching frequency depends on at least the load, and is between an upper and a lower switching frequency limit wherein the u

Abstract: A switch-mode power supply control apparatus includes a PWM controller for outputting a driving signal and a short-circuit protection module coupled to a detection terminal. The detection terminal receives a zero-crossing detection voltage. If the time that the detection voltage input to the detection terminal is lower than a first reference voltage exceeds a predetermined time period, the short-circuit protection module determines that a short-circuit abnormal situation occurs, the short-circuit protection module outputs a short-circuit signal to the PWM controller, and the driving signal output by the PWM controller becomes a turn-off signal. If the short-circuit protection module does not detect the short-circuit abnormal situation, the PWM controller operates normally. A flyback switch-mode power supply includes the switch-mode power supply control apparatus. The flyback switch-mode power supply has a low power consumption when a short-circuit protection is taking place.

Abstract: A flyback-type switching power supply circuit provided with a transformer including a primary coil and a secondary coil, and a switching element connected to the primary coil, comprising: a multiplying circuit for multiplying a first value obtained by multiplying the on-duty ratio of a secondary current flowing to the secondary coil by a predetermined first constant, and a second value obtained by multiplying the peak value of a primary current flowing to the primary coil by a predetermined second constant; and a switching control circuit for controlling switching of the switching element so that the result of multiplication by the multiplying circuit and a third value obtained by multiplying a reference voltage by a predetermined third constant match; and the flyback-type switching power supply circuit is configured so that at least one of the first constant, the second constant, and the third constant is variable by an external signal.

Abstract: An example power supply includes an energy transfer element, a switch, and a controller. The switch is coupled to the energy transfer element to control a transfer of energy from an input to a galvanically isolated output of the power supply. The controller includes a delayed ramp generator, an integrator, an arithmetic operator, and a drive signal generator. The integrator generates a first signal responsive to integrating an input current of the power supply. The arithmetic operator generates a second signal responsive to the first signal and responsive to a ratio of a rectified input voltage to a dc output voltage of the power supply. The drive signal generator generates a drive signal in response to a delayed ramp signal and the second signal to control switching of the switch to provide power factor correction of the power supply and to provide a regulated current at the output.

Abstract: An AC-to-DC converter circuit includes DC-to-DC converter that in turn includes a secondary side circuit. The secondary side circuit includes a secondary winding, a pair of bipolar transistor-based self-driven synchronous rectifiers, a pair of current splitting inductors, and an output capacitor. Each of the synchronous rectifiers includes a bipolar transistor and a diode whose anode is coupled to the transistor collector and whose cathode is coupled to the transistor emitter. The current splitting inductors provide the necessary base current to the bipolar transistors at the appropriate times such that the bipolar transistors operate as synchronous rectifiers.

Abstract: A power converter topology is adapted for efficiency according to input voltage, output voltage or output current conditions. Topology adaptation is achieved by control responsive to the input and output operating conditions, or to one or more external control signals. Transition between any two topologies is implemented by pulse width modulation in the two switches in one of two bridge legs of a full bridge converter. When transitioning from full-bridge to half-bridge topology, the duty ratio of one switch in one leg of the full bridge is increased, while simultaneously the duty ratio of the other switch in the same leg is reduced until one switch is continuously on, while the other switch is continuously off. The transition from the half-bridge to the full-bridge topology is accomplished by modulating the same switches such that, at the end of the transition, both switches operate with substantially the same duty cycle.

Abstract: A DC/DC resonant converter system includes a primary converter unit having a split resonant tank circuit. The resonant converter unit further includes a plurality of primary switching units that control the current flowing into the split resonant tank circuit. A controlled secondary rectifier unit includes a plurality of rectifier switching units to reduce reactive power in the primary converter unit. A phase-shift controller is in electrical communication with the primary converter unit and the controlled secondary rectifier unit. The phase-shift controller is configured to determine a rectifier phase-shift angle based on the plurality of primary switching units and to control switching of the plurality of rectifier switching units based on the rectifier phase-shift angle.

Abstract: An exemplary power conversion system includes a first power conversion module, a second power conversion module, and a controller. The first power conversion module includes a first source side converter, a first load side converter, and a first DC link coupled between the first source side converter and the second load side converter. The second power conversion module includes a second source side converter, a second load side converter, and a second DC link coupled between the second source side converter and the second load side converter. The controller is configured to generate a number of switching signals according to a circuit structure of the power source module or a circuit structure of the load module. The switching signals are provided to the first power conversion module and the second power conversion module to balance a first DC link voltage and a second DC link voltage.

Abstract: An embodiment is an apparatus that includes an energy-storage circuit and a rectifying circuit. The energy-storage circuit is configured to generate a current that flows in a direction, and the rectifying circuit is configured to substantially block the current from flowing in a reverse direction in response to the current. Such an apparatus may be configured to block a reverse current before it begins to flow. For example, such an apparatus may include a transistor disposed in the path of the current, and may be configured to deactivate the transistor while a forward current is still flowing. Furthermore, by being configured to block the current from flowing in a reverse direction in response to the current itself, such an apparatus may better block a reverse current than an apparatus that blocks a reverse current in another manner, such as in response to a voltage across a rectifying transistor.

Abstract: In accordance with systems and methods of the present disclosure, an apparatus for providing compatibility between a load having a reactive impedance and a secondary winding of an electronic transformer may include a power converter and a circuit. The power converter may be configured to transfer electrical energy from the secondary winding to the load. The circuit may be configured to charge an energy storage device coupled to the power converter following start-up of the electronic transformer in order to increase a voltage of the energy storage device to at least a voltage level sufficient for the electronic transformer to enter steady-state operation.

Abstract: Full wave voltage multipliers mostly provide only even multiples (2×, 4×, 8× . . . ). This invention details a process to produce a full wave multiplier that will provide voltage with an odd numbered multiplicand (3×, 5×, 7×, etc.) from the next-higher-numbered, and thus even-numbered, full wave multiplier (so a 3× will be devised from the 4×, a 5× from the 6×, and for any odd (n)×, from the even (n+1)×). Each of a simplified, base 3× and 5× full wave voltage multiplier are also disclosed.

Abstract: A circuit for converting an A.C. power supply voltage into a D.C. voltage, including: a first branch capable of providing a first power level; and a second parallel branch capable of providing a second power level greater than the first one, the second branch including a bidirectional activation switch.

Abstract: An AC/DC converter that converts an AC input voltage Vin to a DC output voltage comprises an inductor, a capacitor selectively coupled to the inductor, a plurality of switches, and a controller. The controller configures the plurality of switches, inductor, and capacitor to operate as a buck converter during times when Vin>Vout and to operate as an inverting buck converter during times when Vin<?Vout. The controller modulates the duty cycles of the plurality of switches to regulate the DC output voltage Vout to the desired, constant output level.

Abstract: A bidirectional inverter-charger includes a first stage receiving or delivering energy from a line or to a load. The first stage including at least one inductor coupled with a split phase bridge. A link storage is connected between rails of a first bus and between the first stage and a second stage. The second stage includes a DC-to-DC converter connectable to a battery. The DC-to-DC converter includes a transformer providing galvanic isolation between a second bridge, connected between the rails of the first bus, and a third bridge connected between the rails of a second bus. In operation, the first stage provides power factor correction and a voltage boost while charging the battery and inverting when providing power to the line or the load. The second stage provides a controllable charge current to the battery and a voltage boost of a voltage of the battery to the link storage.

Abstract: A submodule for a high-voltage converter with reduced risk of cross-ignition includes first and second series-connected energy storage devices, first and second semiconductor series circuits connected in parallel with the energy storage devices, respectively, and having first and second, and respectively third and fourth, switched power semiconductor switching units. A first terminal connects to a first potential point between the first and second switching units, a second terminal connects to a second potential point between the third and fourth switching units. A connecting switching unit is connected between the first and second semiconductor series circuits. A first connecting branch with a first diode connects the first potential point and the potential point between the energy storage devices. A second connecting branch with a second diode connects the second potential point and the potential point between the energy storage devices.

Abstract: A DC/AC converter incorporates at least one Magistor module having a first sp control switch, a second sz control switch and a third sm control switch. An AC source is connected to an input of the at least one Magistor module. A switch controller connected to the first sp control switch, second sz control switch and third sm control switch to and provides pulse width modulation (PWM) activation of the switches for controlled voltage at an output.