Matches 1 - 50 out of 59 1 2 >


Match Document Document Title
US20130200831 POWER SUPPLY DEVICE  
A power supply device includes: an inverter that converts a DC power supplied from a battery pack into an AC power and outputs the AC power; and an adapter shapes a waveform of the AC power...
US20150084563 Modular Power Conversion System  
A modular power conversion system. The modular power conversion system includes at least one first electric resource, a modular power stage, at least one second electric resource, and wherein the...
US20140320051 MOTOR WINDING AND POWER ELECTRONIC SWITCH ASSEMBLY HAVING SWITCHABLE OUTPUT CAPABILITY  
A motor winding and power electronic switch assembly having switchable output capability is disclosed to include a first winding set including a first upper winding and first lower winding...
US20150194915 H-BRIDGE SHOOT-THROUGH AVOIDANCE  
An h-bridge uses a diode or other level shifter between the gates of two transistors in series. The level shifter enforces a sufficient voltage separation between the gates to ensure that both...
US20140203559 CONNECTION FOR IMPROVED CURRENT BALANCING BETWEEN PARALLEL BRIDGE CIRCUITS  
A connection for parallel bridge circuits in a power converter is provided. In particular, a power converter can be used to provide a desired power to a load, such as a generator, motor,...
US20140265947 DRIVER CIRCUIT AND THREE PHASE DIRECT CURRENT BRUSHLESS MOTOR  
A driver circuit for a three phase direct current (DC) brushless motor include: three bridge arms each having a first switch, a second switch, and a first diode and a second diode respectively and...
US20070200515 Motor controlling device  
To provide a motor controlling device that reduces heat generated by an armature and switching elements when an alternating motor is activated. A motor controlling device includes: an H bridge...
US20120068648 MOTOR DRIVE CIRCUIT  
A motor drive circuit includes: a first H-bridge circuit including a first source transistor and a first sink transistor connected in series and a second source transistor and a second sink...
US20090146595 Device for supplying a plurality of multiphase electric loads  
The present invention relates to a device for supplying a plurality of multiphase electric loads, wherein the device includes at least one multilevel pulse-controlled inverter which comprises at...
US20100007296 MOTOR DRIVING DEVICE  
The invention discloses a motor driving device for generating at least one driving signal according to a clock signal corresponding to the output signal of a hall sensor. The motor driving device...
US20120187879 ZERO-VOLTAGE-TRANSITION SOFT SWITCHING CONVERTER  
A zero-voltage-transition soft switching converter (14) for converting a DC voltage comprises a load output terminal (13); a main switching bridge comprising at least one main switch (S1; S2) and...
US20110316461 Open Delta Motor Drive With Integrated Recharge  
An integrated motor drive and battery recharge apparatus includes a battery, an electric motor having N separate motor windings each having a first and a second leg, a contactor having a plurality...
US20130049659 CIRCUIT ARRANGEMENT FOR MODULAR DRIVE POWER CONVERTERS  
The invention relates to power converter circuits which are suitable, in particular, for mobile drive systems with stringent requirements in terms of weight minimization and availability as well...
US20120306418 Low-Cost Minimal-Loss Flywheel Battery  
A low-cost minimal-loss zero-maintenance flywheel battery, to store electric power from a DC power source by conversion to kinetic energy, and regenerate electric power as needed. Its vertical...
US20090302792 AC rotating machine with improved drive for its stator coil  
In an AC rotating machine, a stator is provided with N-phase stator windings and located relative to the rotor. The N is an integer equal to or greater than 3, and the N-phase stator windings are...
US20110316462 ELECTRIC DEVICE FOR DRIVING MECHANICAL EQUIPMENT AND ASSOCIATED METHOD  
The present invention relates to an electric device for driving mechanical equipment comprising an alternating current motor and an inverter, the said inverter comprising, for each phase of the...
US20110181219 ELECTRIC ACTUATOR INCLUDING TWO CURRENT-CONTROLLED VOLTAGE INVERTERS POWERING AN ELECTRIC MACHINE, AND RECONFIGURABLE IN THE PRESENCE OF A DEFECT  
The invention relates to an actuator including an electrical machine. The electrical actuator (100) comprising: a polyphase machine (101); at least one connection member (143) for powering the...
US20120068647 MOTOR DRIVE CIRCUIT  
A motor-drive circuit includes: H-bridge circuits in a pair each including first-source and first-sink transistors, and second-source and second-sink transistors, wherein a motor coil connected...
US20100289441 BI-POWER MOTOR CONTROLLING APPARATUS  
A bi-power motor controlling apparatus, which is electrically connected with a motor, includes a driver IC having a first pin and a second pin. The first and second pins are used to receive a...
US20130093374 METHOD OF STARTING A BRUSHLESS MOTOR  
A method of starting a brushless motor that includes a rotor, a stator having at least one phase winding, and a rotor-position sensor. The method involves exciting the winding and sensing a signal...
US20100219783 MOTOR DRIVE CIRCUIT  
This invention provides a motor drive circuit, which makes it possible to prevent braking when a power supply voltage is lower than a predetermined voltage while suppressing at a low cost a rise...
US20070241705 METHOD & ARRANGEMENT FOR SENSORLESS OPERATION OF AN ELECTRONICALLY COMMUTATED MOTOR  
An improved electric motor has a rotor (124), a stator (125) having at least one phase winding strand (126), an output stage (122) for influencing the current flow in said phase winding strand, a...
US20110227522 ALTERNATING-CURRENT DIRECT-CURRENT CONVERTER AND ELECTRIC MOTOR DRIVER  
Provided is an alternating-current direct-current converter capable of controlling a harmonic current and improving a power factor at reduced costs. The alternating-current direct-current...
US20100237816 BRUSHLESS MOTOR DRIVING CIRCUIT  
The present disclosure provides a brushless motor driving circuit capable of clamping an output voltage at a proper voltage, even when a power source voltage changes. Namely, a pre-driver circuit...
US20140103845 Reducing Current Reversal Time In Electric Motor Control  
The time required to reverse current flow in an electric motor is reduced by exploiting inductive current that persists in the motor when power is temporarily removed. Energy associated with this...
US20140292243 POWER MODULE AND ELECTRIC DEVICE FOR THE COMBINED POWERING AND CHARGING OF AN ACCUMULATOR AND A MOTOR RESPECTIVELY  
The invention relates to a power module (9) for converting an electric current flowing between an accumulator and an alternating-current motor, said module (9) comprising switching means (10) that...
US20110031918 Output circuit  
A power transistor is arranged between an output terminal and a power supply terminal. A pre-driver includes a high-side transistor and a low-side transistor connected in series between the power...
US20080258661 INVERTER TOPOLOGY FOR AN ELECTRIC MOTOR  
An inverter is provided for controlling application of voltage from a power source to a motor having a plurality of windings. The inverter includes a first set of one or more switching elements...
US20090251088 MOTOR DRIVING CIRCUIT  
A motor driving circuit includes at least one set of switching elements, each set of switching elements being two switching elements connected in series to each other, and a diode connected in...
US20130181646 THREE-PHASE AC TO DC CONVERTER AND AIR CONDITIONING APPARATUS USING THREE-PHASE AC TO DC CONVERTER  
A three-phase AC to DC converter includes a three-phase AC power supply, a three-phase rectifier bridge circuit that is connected to the three-phase AC power supply and includes rectifying devices...
US20060145638 Control signals for single coil brushless motor  
Control signal generation for a direct current brushless motor having a single stator coil with two free ends and same number of stator poles as magnet poles. It is describing how to cost...
US20110043148 MOTOR CONTROL APPARATUS AND METHOD THEREOF  
A motor control apparatus includes a phase sensing circuit, a current sensing circuit, a controller and a driving circuit. The driving circuit receives a first driving signal and then controls a...
US20140158525 Apparatus for Controlling an Electrolytic Cell in a Water Purification System  
A system comprises a water purification system having an electrolytic cell to receive a flow of waste water. A power source supplies power to the electrolytic cell. The power source at least...
US20140306631 Method for operating an energy supply unit for a motor vehicle electrical system  
A method for operating an energy supply unit for a motor vehicle electrical system, including at least one first subsystem and one second subsystem having different voltage levels, the energy...
US20090261764 MOTOR DRIVE DEVICE AND ELECTRIC EQUIPMENT USING THIS  
A motor drive device (2) comprising an H-bridge circuit (21) having four switching elements (QH, QH2, DL1, DL2) connected in an H bridge form to a motor coil L, a control circuit (22) for on-off...
US20130008618 METHODS, APPARATUSES, AND SYSTEMS FOR SPEED CONTROL OF A MOVABLE PARTITION  
A movable partition system includes a movable partition including coupled panels and a lead post engaged with and movable along a track. A motor control system includes a motor coupled to the...
US20100176758 Motor Driving Circuit  
A motor-driving-circuit comprising: a first to-fourth-transistors; a drive-control-circuit to control a energization-state of a motor coil so as to be a driving-state where either one group of a...
US20140035499 DRIVING APPARATUS HAVING CURRENT DETECTION FUNCTION AND MOTOR DRIVING APPARATUS HAVING CURRENT DETECTION FUNCTION  
There are provided a driving apparatus having a current detection function and a motor driving apparatus having a current detection function that are capable of detecting current without a voltage...
US20140285130 CIRCUIT DEVICE AND ELECTRONIC APPARATUS  
When a counter-electromotive force generated by an inductive load is applied to the drain of a switch element, the gate of the switching element may pull the gate potential toward the direction...
US20120169263 METHODS, SYSTEMS AND APPARATUS FOR ADJUSTING DUTY CYCLE OF PULSE WIDTH MODULATED (PWM) WAVEFORMS  
Embodiments of the present invention relate to methods, systems and apparatus for controlling operation of a multi-phase machine in a vector controlled motor drive system when the multi-phase...
US20140312818 SEMICONDUCTOR DEVICE AND INVERTER SYSTEM  
A semiconductor device includes first and second resistor groups, first and second switch groups, a register, and an amplifier. The first resistor group includes plural first resistors connected...
US20090072776 Apparatus and Method for Controlling Hybrid Motor  
The present invention relates to an apparatus and method for controlling a hybrid motor, and more particularly, to an apparatus and method for controlling a hybrid motor, which uses a permanent...
US20140247001 CIRCUIT DEVICE AND ELECTRONIC APPARATUS  
An electronic circuit includes a noise source and an analog circuit and a logic circuit that may be adversely affected by noise. At least a portion of the analog circuit and the logic circuit is...
US20100225261 ENERGY CONVERTER AND ELECTROMECHANICAL APPARATUS  
An energy converter includes magnetic coils of N phases (N is an integer of 3 or more), and a PWM drive circuit for driving the magnetic coils of N phases, wherein the magnetic coil of each phase...
US20130221888 MOTOR DRIVE APPARATUS EQUIPPED WITH DYNAMIC BRAKING CONTROL UNIT  
A motor drive apparatus includes an inverter which has an upper and lower arms each provided with a plurality of semiconductor switching devices and free-wheeling diodes connected in reverse...
US20100244756 High Voltage Integration Circuit With Freewheeling Diode Embedded in Transistor  
A high voltage integrated circuit contains a freewheeling diode embedded in a transistor. It further includes a control block controlling a high voltage transistor and a power block—including the...
US20170170756 PWM MOTOR DRIVE DEVICE  
A PWM motor drive device includes: a time counter that counts a time of a polarity of a motor phase signal; a register that retains the time; a zone setting circuit that splits the time into...
US20170110977 MEDIUM VOLTAGE HYBRID MULTILEVEL CONVERTER AND METHOD FOR CONTROLLING A MEDIUM VOLTAGE HYBRID MULTILEVEL CONVERTER  
A multilevel converter includes a power supply assembly with a plurality of phases, and a power cell assembly with first power cells and second power cells. The first power cells and second power...
US20170077272 SEMICONDUCTOR DEVICE AND INVERTER INCLUDING THE SEMICONDUCTOR DEVICE  
A semiconductor device includes a conductivity type drain layer, a conductivity type drift layer, conductivity type base regions located in an upper surface of the drift layer, a conductivity type...
US20160336884 DRIVE CIRCUIT FOR SYNCHRONOUS MOTOR, SYNCHRONOUS MOTOR DRIVEN BY DRIVE CIRCUIT, AIR BLOWER INCLUDING SYNCHRONOUS MOTOR, AIR CONDITIONER INCLUDING AIR BLOWER, AND METHOD OF DRIVING SYNCHRONOUS MOTOR  
A drive circuit for a synchronous motor including a rotor having ten magnetic poles formed by a permanent magnet, and a stator in which a winding is wound in a concentrated manner around nine...

Matches 1 - 50 out of 59 1 2 >