| Patent Number |
Title Of Patent |
Date Issued |
| RE40843 |
Electronic dimmable ballast for high intensity discharge lamp |
July 14, 2009 |
| A dimmable electronic ballast for an HID lamp includes a rectifier stage for rectifying an AC input and providing a rectified DC output, a power factor correction stage for modifying a power factor of the AC input and for providing an increased voltage DC output from the rectified DC |
| RE40549 |
Circuitry for a high voltage linear current sense IC |
October 28, 2008 |
| A high voltage linear current sense integrated circuit includes a differential amplifier circuit that can amplify a differential signal in the hundreds of millivolts near the power supply. In addition, a constant current using opposing minus temperature coefficient MOSFETs is provided. |
| RE40016 |
Power factor correction control circuit |
January 22, 2008 |
| A power factor control circuit for an AC to DC power converter includes an inductor receiving AC rectified power. The charging time of the inductor is controlled by a switching circuit based on a comparison between a DC bus voltage and a fixed reference voltage. The circuit operates with |
| D503691 |
Conductive clip for a semiconductor package |
April 5, 2005 |
|
| D502151 |
Semiconductor package |
February 22, 2005 |
|
| D456772 |
Power module housing |
May 7, 2002 |
|
| D249883 |
Solid state relay |
October 10, 1978 |
|
| 7619865 |
Electronic circuit protection device with I.sup.2t or other function |
November 17, 2009 |
| A circuit protective device includes a current sensing circuit adapted to be coupled to an output power switch to provide a feedback signal representative of the output current, an overcurrent sensor responsive to the feedback signal exceeding a presettable reference level to provide an |
| 7619477 |
Current sense amplifier for voltage converter |
November 17, 2009 |
| A thermal calibration circuit for adjusting the gain of a variable gain amplifier, the thermal calibration circuit comprising an interface for receiving a signal that varies with temperature and for providing a signal related to the variation of the temperature; a variable gain ampli |
| 7619450 |
Start-up circuit for providing a start-up voltage to an application circuit |
November 17, 2009 |
| A startup circuit for providing a startup voltage from a high voltage DC bus voltage to an application circuit, the startup circuit comprising an integrated circuit package for at least a control circuit for driving at least one power switch of the application circuit having a low voltag |
| 7619302 |
Highly efficient both-side-cooled discrete power package, especially basic element for innovativ |
November 17, 2009 |
| Two DBC wafers have patterned first conductive surfaces which receive a semiconductor die in sandwich fashion. Lead frame terminally extending into the package interior and are connected to the die terminals. The outer conductive surfaces of each of the wafers are available for two-s |
| 7619280 |
Current sense trench type MOSFET with improved accuracy and ESD withstand capability |
November 17, 2009 |
| The active area of a current sense die is surrounded by a transition region which extends to the terminating periphery of the die. Spaced parallel MOSgated trenches extend through and define an active area. The trench positions in the transition region are eliminated or are deactivat |
| 7615873 |
Solder flow stops for semiconductor die substrates |
November 10, 2009 |
| A substrate, which has semiconductor die arranged thereon, uses at least one solder flow stop, closely surrounding at least a portion of at least one mounting pad on which the die are mounted, to prevent die rotation during solder reflow. The at least one solder stop is non-wetting, duri |
| 7615854 |
Semiconductor package that includes stacked semiconductor die |
November 10, 2009 |
| A semiconductor package that includes at least two semiconductor devices that are coupled to one another through a conductive clip. |
| 7602139 |
Signal conditioning apparatus and method for determination of permanent magnet motor rotor posit |
October 13, 2009 |
| An apparatus and method for estimating rotor angle information for the control of permanent magnet AC motors having sinusoidal current excitation. The disclosed motor drive can provide full load operation at very low speeds including zero speed without the use of a shaft position sen |
| 7602036 |
Trench type Schottky rectifier with oxide mass in trench bottom |
October 13, 2009 |
| A trench type junction barrier rectifier has silicon dioxide spacers at the bottom of trenches in a silicon surface and beneath the bottom of a conductive polysilicon filler in the trench. A Schottky barrier electrode is connected to the tops of the mesas and the tops of the polysilicon |
| 7602015 |
Process to control semiconductor wafer yield |
October 13, 2009 |
| The size of BV.sub.DSS distribution is controlled by the active manipulation of the distribution of silicon parameters across a wafer to offset opposing effects inherent in the wafer fabrication process. Thus, the resistivity of the silicon wafer is increased toward the edge of the w |
| 7593200 |
Buck converter fault detection method |
September 22, 2009 |
| A circuit for detecting faults in a converter, the converter including a switching stage having high- and low-side series switches connected together at a switching node and fault circuitry for managing a plurality of fault conditions, an input voltage source being provided at one te |
| 7592831 |
Circuit to optimize charging of bootstrap capacitor with bootstrap diode emulator |
September 22, 2009 |
| A circuit for optimizing charging of a bootstrap capacitor connected to a high side floating supply voltage at a first terminal and to a switched node voltage at a second terminal, the circuit for optimizing being included in a gate driver circuit having high- and low-side driver cir |
| 7592770 |
Parking control technique for permanent magnet motor drives with sinusoidal BEMF |
September 22, 2009 |
| A method and system for controlling a current regulator motor control for parking a motor rotor in a predetermined position, wherein a first current command and a first angle command are supplied to a current regulator for a first parking time, to move the rotor to an intermediate po |
| 7592688 |
Semiconductor package |
September 22, 2009 |
| A multi-chip semiconductor package that includes two power semiconductor devices arranged in a half-bridge configuration between two opposing circuit boards. |
| 7589986 |
Single stage integrated boost inverter motor drive circuit |
September 15, 2009 |
| An integrated boost inverter circuit including at least one inverter stage having series connected high- and low-side switches having a common node. Each switch having an anti-parallel connected diode connected across the switch, which diode can be an external diode or an internal body d |
| 7589506 |
Signal-to-noise improvement for power loss minimizing dead time |
September 15, 2009 |
| Apparatus for minimizing power losses associated with dead time between ON times of two series connected switches of a power converter connected across a supply potential, the apparatus comprising a control arrangement for monitoring a selected parameter associated with power loss during |
| 7586282 |
Hardware based configurable motion control apparatus and method |
September 8, 2009 |
| Apparatus for generating a motion control algorithm for the control of an AC electric machine, the apparatus comprising a motion control engine comprising a motion control sequencer, a motion control program memory, a port memory, a plurality of motion control modules, and a plurality of |
| 7584371 |
POL system architecture with analog bus |
September 1, 2009 |
| A power control system and method including a plurality of point-of-load regulators (POL) providing corresponding regulated output voltages; a manager for communicating control signals and operational parameters with said point-of load regulators; a digital bus to carry control signals |
| 7583136 |
Active filter for reduction of common mode current |
September 1, 2009 |
| An active filter for reducing the common mode current in a pulse width modulated drive circuit driving a load, said drive circuit comprising an a-c source, a rectifier connected to said a-c source and producing a rectified output voltage connected to a positive d-c bus and a negative |
| 7582958 |
Semiconductor package |
September 1, 2009 |
| A semiconductor package which includes a plurality of leads embedded in a ceramic body, a semiconductor device electrically coupled to the leads, and a molded housing encapsulating at least the semiconductor device. |
| 7579697 |
Arrangement for high frequency application |
August 25, 2009 |
| A source mounted semiconductor device package is described which includes a semiconductor die having first and second opposing major surfaces, first and second major electrodes disposed on respective major surfaces and a control electrode disposed on the second major surface, and a thin |
| 7579650 |
Termination design for deep source electrode MOSFET |
August 25, 2009 |
| A power semiconductor device that includes a plurality of source trenches that extend to a depth below the gate electrodes and a termination region that includes a termination trench that is as deep as the source trenches. |
| 7573250 |
Method and apparatus for calibrating a ramp signal |
August 11, 2009 |
| A circuit for calibrating an oscillating ramp signal to a variable DC reference signal in accordance with an embodiment of the present application includes a circuit for setting a predetermined time period during which a charging capacitor can charge and thus determining a ramp oscil |
| 7573245 |
Multi-phase converter with frequency and phase timing control |
August 11, 2009 |
| A multi-phase converter comprising a plurality of switching circuits each controlled by a phase controller and each providing a switched output voltage to an output node of the converter and wherein each switching circuit under control of the phase controller sequentially provides a |
| 7573107 |
Power module |
August 11, 2009 |
| A power module that includes a power circuit assembly in which power components are electrically and mechanically connected without wires. |
| 7569901 |
P channel radhard device with boron diffused P-type polysilicon gate |
August 4, 2009 |
| A MOS gated device is resistant to both high radiation and SEE environments. Spaced, N-type body regions are formed in the surface of a P-type substrate of a semiconductor wafer. P-type dopants are introduced into the surface within each of the channel regions to form respective sour |
| 7567053 |
Mechatronic integration of motor drive and E-machine, especially smart-E-motor |
July 28, 2009 |
| The power switches of an inverter are mechanically integrated with an electric motor of a vehicle and are mounted on the end plate of the motor and employ short connections between the motor a-c terminals and the inverter a-c output terminals. Bond wireless modules are employed. The |
| 7566622 |
Early contact, high cell density process |
July 28, 2009 |
| A method of fabricating a power semiconductor device in which contact trenches are formed prior to forming the gate trenches. |
| 7564099 |
Monolithic MOSFET and Schottky diode device |
July 21, 2009 |
| A Schottky diode is integrated into a planar or trench topology MOSFET having parallel spaced source regions diffused into spaced base stripes. The diffusions forming the source and base stripes are interrupted to permit the drift region to extend to the top of the die and receive a |
| 7561391 |
Input voltage sensing circuit |
July 14, 2009 |
| An input voltage sensing circuit comprising a circuit input terminal; a comparator having first and second input terminals, the first of said input terminals being coupled to a reference voltage; a switch circuit provided between the circuit input terminal and the second of the input |
| 7558081 |
Basic halogen convertor IC |
July 7, 2009 |
| A driving circuit for providing a control signal to a power semiconductor device for providing power to a filament lamp, said driving circuit comprising an oscillator for generating said control signal. The driving circuit may further comprise a soft start circuit which controls said |
| 7557644 |
Fully integrated floating power supply for high voltage technologies including N-EPI biasing |
July 7, 2009 |
| An integrated circuit for feeding data acquisition circuits is provided. The integrated circuit including an inverter application having a half-bridge driver for driving high and low side switches connected in a half bridge, a data acquisition circuit formed in monolithic high voltage |
| 7557515 |
Simplified ballast control circuit |
July 7, 2009 |
| A ballast control circuit for use with a fluorescent lamp in accordance with an embodiment of the present application includes a voltage controlled oscillator operable to provide an operating signal for the ballast control circuit, wherein a frequency of the operating signal depends |
| 7557395 |
Trench MOSFET technology for DC-DC converter applications |
July 7, 2009 |
| A trench power semiconductor device including a recessed termination structure. |
| 7554276 |
Protection circuit for permanent magnet synchronous motor in field weakening operation |
June 30, 2009 |
| A safety circuit for providing protection against failures that impact safety of an inverter circuit driving a Permanent Magnet Synchronous Motor (PMSM) including high and low side switches connected in a bridge and driven by a gate driver circuit during operation of the PMSM in a fi |
| 7554271 |
Single stage PFC and power converter circuit |
June 30, 2009 |
| A power converter provides constant load power while achieving a high power factor in a single stage configuration with reduced component count and ratings. The power converter takes a rectified line input to a switching half-bridge that supplies current to a load. A series combinati |
| 7554188 |
Low inductance bond-wireless co-package for high power density devices, especially for IGBTs and |
June 30, 2009 |
| A power semiconductor package that includes at least two semiconductor devices electrically coupled to one another through a common metallic web. |
| 7554153 |
Power semiconductor device |
June 30, 2009 |
| A power semiconductor device which includes an implant region in the base region thereof to reduce Qgd. |
| 7550781 |
Integrated III-nitride power devices |
June 23, 2009 |
| A III-nitride based integrated semiconductor device which includes at least two III-nitride based semiconductor devices formed in a common die. |
| 7548127 |
Digitally controlled ring oscillator |
June 16, 2009 |
| A ring oscillator for generating an output signal, comprising a plurality of serially connected main elements for selectively delaying a signal input thereto, each of the plurality of main elements having two circuit paths, a first path including at least one time-delay element for d |
| 7548029 |
Bi-directional current sensing by monitoring VS voltage in a half or full bridge circuit |
June 16, 2009 |
| An apparatus and method for determining the output current in a bridge-connected switched transistor output circuit including high-side and low-side transistor switches, typically MOSFETS. The voltage at a common node between the high and low side switches is sensed, and offset in a |
| 7547964 |
Device packages having a III-nitride based power semiconductor device |
June 16, 2009 |
| A semiconductor device package includes a die pad, a substrate disposed on the die pad, and a III-nitride based semiconductor device disposed on the substrate. The device package may also include a second semiconductor device disposed on the die pad or the substrate, which device may be |
| 7547585 |
P channel Rad Hard MOSFET with enhancement implant |
June 16, 2009 |
| A P channel vertical conduction Rad Hard MOSFET has a plurality of closely spaced base strips which have respective sources to form invertible surface channels with the opposite sides of each of the stripes. A non-DMOS late gate oxide and overlying conductive polysilicon gate are for |
