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7617590 |
Method of manufacturing an embedded inductor
A manufacturing method of an embedded inductor includes the steps of providing a magnetic plastic material, disposing at least one coil into a mold, and injecting or pressing the magnetic plastic...
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7616456 |
Apparatus and system for providing transient suppression power regulation
A device for providing power to suppress transient load demands and a system including the device are disclosed. The device includes a sense circuit to detect when a transient event occurs and one...
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7613016 |
Power and information signal transfer using micro-transformers
A power converter provides power across an isolation barrier, such as through the use of coils. A coil driver has transistors connected in a positive feedback configuration and is coupled to a...
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7609532 |
Phase-shifted PWM bridge with switchable inductors to maintain zero-voltage switching at light load
A dc-to-dc pulse-width-modulated phase-shifted full bridge defines two taps, and the bridge switches are operated to produce alternating voltage between the taps. A switchable inductor is connected...
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7609023 |
Control apparatus for electric vehicles
In electric vehicle control, system voltage stabilization control is executed to reduce the difference between a target value and detected value of a system voltage generated by a voltage boosting...
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7606053 |
DC-to-DC converter and electric motor drive system using the same
A DC-to-DC converter is provided and generally configured for implementation with an electric motor drive system. In at least one embodiment, the DC-to-DC converter includes first and second...
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7602621 |
Half bridge converter
A half bridge converter having a pulse width control unit, a level regulating unit, a half bridge switch unit, an electricity converting unit and a feedback unit is disclosed. The level regulating...
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7602620 |
Controller for power converter
A controller for providing out of phase drive signals to a power converter having at least a first power unit and second power unit. The controller may comprise input circuitry adapted to receive a...
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7599199 |
Power converter switch control
A power converter includes a transformer having a primary winding and a secondary winding, and a plurality of switches coupled to the primary and secondary winding, the plurality of switches...
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7599198 |
Resonance converter and synchronous rectification driving method thereof
A resonance converter and a synchronous rectification driving method thereof are provided. The resonance converter includes a switch circuit having at least two first switches, a resonance circuit...
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7599196 |
Universal power converter
Methods and systems for transforming electric power between two or more portals. Any or all portals can be DC, single phase AC, or multi-phase AC. Conversion is accomplished by a plurality of...
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7593241 |
Hybrid power supply system
A hybrid power supply system including piezoelectric and ferrite transformers for driving a discharge lamp is provided. Specifically, the hybrid power supply system includes a rectifier/filter, a...
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7589981 |
DC-AC converter and method of supplying AC power
A dc-ac converter capable of supplying a finely regulated ac drive voltage to a load is provided. For this purpose, the converter includes, in a primary winding of a transformer, a full-bridge or...
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7589980 |
DC-DC converter
In a DC-DC converter of the present invention, a converting circuit converts a DC-DC voltage outputted from a DC power supply into an AC voltage, and to output to a series circuit in which a...
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7586760 |
Snubber capacitor resetting in a DC-to-DC converter
A DC-to-DC converter and associated methods are provided for controlling the discharge of snubber capacitances during a light/no load buck mode of operation. An operating method for a DC-to-DC...
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7584533 |
Method of fabricating an inductor structure on an integrated circuit structure
A damascene process is utilized to fabricate the segmented magnetic core elements of an integrated circuit inductor structure. The magnetic core is electroplated from a seed layer that is conformal...
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7583521 |
Over voltage clamp
A clamp circuit for use in a DC/DC voltage converter having a first converter output including a first node and a second node, and a second converter output including a third node a fourth node....
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7580271 |
Apparatus and method for suppressing the input current inrush for a voltage converter in a pre-charge stage
An apparatus and method are provided for suppressing the input current inrush for a voltage converter in a pre-charge stage. The voltage converter comprises a power input for receiving an input...
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7576337 |
Power supply for an ion implantation system
A power supply system for an ion implantation system. In one particular exemplary embodiment, the system may be realized as a power supply system that includes a low frequency power inverter, a...
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7570502 |
Inverter apparatus comprising switching elements
A problem to be solved by the present invention is to eliminate variation in potential in a turn-off time period of each GTO element, and to stabilize a gate drawing current by surely performing...
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7568278 |
Method of manufacturing inductor
A method for manufacturing an inductor using a system-in-package (SIP) includes forming a first penetration electrode in a silicon substrate; depositing an insulating film on a first surface of the...
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7567443 |
Power converter
A power converter is provided which comprises two main MOS-FETs 4, 5 connected in series to a DC power source 1 ; an oscillator 2 which has two capacitors 3 a , 3 b connected in parallel to...
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7564275 |
Switching circuit and a method of driving a load
A switching circuit includes (a) a bridge circuit ( 122 ) with a first output ( 266 ) to drive a load ( 130 ); and (b) a driver circuit ( 120 ) comprising a pair of cascode amplifiers ( 250, 251 )...
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7561450 |
Protection device for a converter and related method
A protection device for a converter includes at least one power switch that operates for a first time period from the time the overload or short-circuit in the converter has been detected. The...
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7561446 |
Double-clamped ZVS buck-boost power converter
A transformer-coupled buck-boost DC-DC power converter is disclosed. An active clamp circuit is provided to form a resonant circuit with the transformer to control the slew rate of the secondary...
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7558092 |
Switching power supply unit
A switching power supply unit is provided, in which a convertible voltage range can be more widened. A transformer having four windings at a high-voltage side, the windings having the number of...
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7558080 |
Power converter system
A power converter system including an LC oscillator circuit, an oscillator drive circuit for driving the LC oscillator circuit, a rectifier circuit coupled to the LC oscillator circuit for...
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7554822 |
Power converter for led large area light source lamp
Power converter for receiving an input current at an input voltage and for providing an output current at an output voltage. The power converter comprises a transformer ( 133 ) having a primary (...
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7554820 |
Series resonant DC-DC converter
A series resonant Dc-DC converter powers an audio amplifier as a load. The series resonant DC-DC converter may include a power input stage, a switching stage, a series resonant stage, a transformer...
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7548439 |
Electric power converter for reducing generated high frequency components
By reduction in loss and noise of a three-phase reactor on the AC side of an electric power converter, compactness and reduction in weight of the reactor are realized, and countermeasures for heat...
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7548438 |
System and method for input current shaping in a power converter
A power converter delivers electrical power from an electrical power source to a load according to a plurality of operation modes, where at least one of the operation modes is a peak current...
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7548435 |
Zero-voltage-switching DC-DC converters with synchronous rectifiers
A DC-DC converter includes an inductor, a synchronous rectifier (SR) connected to the inductor, and an active switch connected to the inductor and the SR. An active resonant tank (ART) cell is...
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7542312 |
Electric power converter
By reduction in loss and noise of a three-phase reactor on the AC side of an electric power converter, compactness and reduction in weight of the reactor are realized, and countermeasures for heat...
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7529108 |
Full-bridge digital power converter controller and method to compensate volt-second imbalance
A digital controller for use with a full-bridge power converter which includes an isolation transformer that conducts first and second currents of opposite polarity during respective power-transfer...
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7529106 |
Voltage monitoring device and inverter device
A voltage monitoring device 30 includes an AC input portion 31 , a rectifier circuit 32 , and a detection circuit 33 . The AC input portion 31 receives alternating current output from a...
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7525825 |
Snap in high power, high current connector with integrated EMI filtering
A filter assembly is provided which includes a Faraday cage interface. Electrical noise is filtered by the Faraday cage interface. The Faraday cage interface is configured to prevent passage of...
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7518886 |
Multiphase soft switched DC/DC converter and active control technique for fuel cell ripple current elimination
DC/DC converter has a transformer having primary coils connected to an input side and secondary coils connected to an output side. Each primary coil connects a full-bridge circuit comprising two...
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7512422 |
RF generator with commutation inductor
A radio frequency (RF) generator comprises a first half bridge including first and second power transistors; a second half bridge including first and second power transistors; an RF output node...
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7508689 |
Inverter and a drive system using the inverter
A inverter has a switching device for switching DC to change it to AC, and a bipolar type rechargeable battery connected to the switching device in parallel or in series for smoothing the current...
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7502243 |
DC/AC inverter with adjustable gate-source voltage
The present invention is a DC/AC inverter for converting a DC supply voltage signal to an AC voltage signal. The DC/AC inverter includes a drive circuit, a switch circuit, a transformer circuit and...
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7502234 |
Planar transformer power supply
A planar transformer power supply for an electrosurgical device to minimize stray capacitance comprising a step down/step-up isolation transformer and circuitry to limit the effects of a short...
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7499291 |
DC power transmission system of voltage source converter using pulse-interleaving auxiliary circuit
A DC power transmission system of a voltage source converter using a pulse-interleaving auxiliary circuit is disclosed. The converter system comprises an IGBT converter for converting an AC power...
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7499290 |
Power conversion
Components, systems and methods for generating variable frequency AC voltage from a DC power supply are described. The components include a full-bridge (FB) parallel load resonant (PLR) converter...
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7495933 |
Resonance transducer
There is provided a resonance transducer including a main bridge linked with an input signal. The resonance transducer includes a transformer assembly across which an output signal can be tapped, a...
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7489527 |
DC transformer with an output inductance integrated on a magnetic core thereof and a DC/DC converter employing the same
A DC/DC converter includes an input filter, a half-bridge converter without PWM (Pulse Width Modulation) control function, a synchronous rectifier, an output capacitor, and a DC transformer. The DC...
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7489526 |
Power and information signal transfer using micro-transformers
A power converter provides power across an isolation barrier, such as through the use of coils. A coil driver has transistors connected in a positive feedback configuration and is coupled to a...
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7480487 |
Power regulation for field instruments
Effective power regulation may be achieved for a field instrument that derives power from a communication signal. In particular aspects, a system and process for power regulation include the...
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7480155 |
Digital generator of phase shift modulation
A digital generator of phase shift modulation receives two binary coded numbers (F) and (P), that represent a requested frequency value and a requested phase value, respectively, and generates two...
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7479774 |
High-performance solar photovoltaic (PV) energy conversion system
The present invention focuses on the development of a high-performance solar photovoltaic (PV) energy conversion system. The power circuit of the invention is made of a two-stage circuit,...
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7466567 |
Half-bridge CCFL driving apparatus
A half-bridge CCFL driving apparatus uses a bridge rectifier to convert AC into a DC voltage and stores the DC voltage in a capacitor unit. The capacitor unit averages the DC voltage into two...
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