U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Examiner: Berhane, Adolf


Primary examiner statistics: 2303 patents; average approval time: 2301 days
Assistant examiner statistics: 506 patents; average approval time: 707 days

Patents as Primary Examiner (view all)

Patent No. Patent Title:
8115464 Boost circuit and power supply device
8115462 Voltage regulator for an integrated circuit
8115460 Power conversion with zero voltage switching
8111530 3-level power converter
8111055 Method for controlling a direct current chopper controller
8111053 DC-DC converter
8106635 Power converter
8107266 Converter for converting alternating voltage into direct voltage ...
8106639 Feed forward control of switching regulator
8107263 Series resonant converter
8106637 Programmable floating gate reference
8106641 System and method for providing stable control for power systems
8106634 Switching power supply and portable device
8106645 Power saving system for household electric appliance
8102678 High power factor isolated buck-type power factor correction conv...
8102679 Utilization of a multifunctional pin to control a switched-mode p...
8102167 Phase-cut dimming circuit
8102680 Smart driving method for synchronous rectifier and its apparatus ...
8102166 Power source device and output voltage stabilizing method
8098505 Phase management for interleaved power factor correction
8098506 Single-stage power supply with power factor correction and consta...
8098055 Step-up converter systems and methods
8098504 Converter station for connecting an AC system to an end of an HVD...
8094474 Drive controller for power conversion circuit
8093882 Low heat dissipation I/O module using direct drive buck converter
8094468 Control circuit having off-time modulation to operate power conve...
8093874 Method and system for adding boost functionality to a buck switch...
8093833 Method for controlling an electrical light source by pulse width ...
8093880 Programmable voltage reference with a voltage reference circuit h...
8089253 Power supplies for RF power amplifier
8089255 Power factor correction power supply unit, and control circuit an...
8089259 Integrated circuit and a method for recovering from a low-power p...
8089781 Method and apparatus to limit maximum switch current in a switchi...
8089782 High accuracy average output current control scheme for power cur...
8089790 Power supply input device
8085030 Voltage generator having a dynamic resistors feedback control
8085006 Shunt regulator
8085031 Device for supplying power to measuring sensors and transmitting ...
8085010 TRIAC/SCR-based energy savings device for reducing a predetermine...
8085022 Switching regulator and control circuit thereof, and method for d...

Patents as Assistant Examiner (view all)

Patent No. Patent Title:
5804954 Analog based tap position detector
5790392 Intelligent power supply with staged loading capability
5739682 Circuit and method for providing a reference circuit that is ...
5673184 Switch mode power supply circuit with increased power factor for ...
5666045 Laser drive and control systems useful for laser diode protection
5663874 Multiple output flyback DC-to-DC converter with synchronous ...
5659465 Peak electrical power conversion system
5656923 A DC power supply controller
5654626 Boost-converter with low losses
5654880 Single-stage AC-to-DC full-bridge converter with magnetic amplifi...
5654881 Extended range DC-DC power converter circuit
5654627 Method of automatically changing upper, balanced and lower voltag...
5654884 Multistand AC/DC converter with baseline crossing detection
5652700 Low cost AC-to-DC converter having input current with reduced har...
5650907 Circuit breaker
5646517 Voltage regulator for coupled-mode logic circuits
5644484 Bidirectional load current sense circuit for a H-bridge
5644485 Converter connection with a balancing circuit
5640310 Current resonance type switching power source
5640312 Isolated power supply having power switch on secondary side
5638265 Low line harmonic AC to DC power supply
5638261 Interlock switching system and method
5638264 Parallelized power supply system providing uninterrupted operatio...
5636108 DC-to-DC bidirectional voltage converters and current sensor
5636109 Personal computer power supply with low-power standby mode activa...
5636110 Small form factor power supply
5633580 Direct load current sensing for predicted regulator tap position
5633792 Pulse width rotary inverter
5631811 Auxiliary power supply device
5631545 Apparatus and method for regulating a power line using frequency ...
5631549 Linear regulator power supply with an overcurrent protection devi...
5629843 Self compensating clamp circuit and method for limiting a potenti...
5629611 Current generator circuit for generating substantially constant c...
5627713 Protective device for electric distribution system
5627505 Magnetic cylinder with axial extending permanent bar magnets
5627738 Low cost, high reliability soft start arrangement
5627712 Transformer differential relay
5627736 Power supply noise filter
5627744 Converter enhanced variable frequency power bus architecture
5625546 Method and apparatus for the variable allocation of static invert...
 
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