Inventor

STEIGERWALD ROBERT LOUIS

US69 patents

⚠️ This page may combine multiple inventors who share the name “STEIGERWALD ROBERT LOUIS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

STEIGERWALD ROBERT LOUIS

GEN ELECTRIC

Apparatus and method for charging an electric vehicle

Apparatus for transferring energy using onboard power electronics and method of manufacturing same

Power control system and method

Dual-mode, high-efficiency dc-dc converter useful for portable battery-operated equipment

Florescent lamp ballast control for zero -voltage switching operation over wide input voltage range and over voltage protection

Diagnostic circuit and method for predicting fluorescent lamp failure by monitoring filament currents

High power factor converter with a boost circuit having continuous/discontinuous modes

Switching amplifier for generating continuous arbitrary waveforms for magnetic resonance imaging coils

Apparatus for energy transfer using converter and method of manufacturing same

System and method for charging and discharging a superconducting coil

Method and apparatus for current shaping in electronically commutated motors

Secondary-side controlled resonant AC voltage regulator module

Elimination of striations in fluorescent lamps driven by high-frequency ballasts

Method and apparatus for charging multiple energy storage devices

Photovoltaic power converter system with a controller configured to actively compensate load harmonics

Power control system and method

Method/system for switched frequency ripple reduction in MRI gradient coils

High-frequency, high-efficiency converter with recirculating energy control for high-density power conversion

High-efficiency switching power amplifier

Multi-function filament-heater power supply for an electronic ballast for long-life dimmerable lamps

Electric starter generator system employing bidirectional buck-boost power converters, and methods therefor

Low-noise multi-output power supply circuit featuring efficient linear regulators and method of design

Ripple-current reduction schemes for AC converters

Apparatus for transferring energy using power electronics and machine inductance and method of manufacturing same

Apparatus for energy transfer using converter and method of manufacturing same

Apparatus for energy transfer using converter and method of manufacturing same

Apparatus and method for rapid charging using shared power electronics

Method and apparatus for charging multiple energy storage devices

Method and apparatus for charging multiple energy storage devices

Apparatus for energy transfer using converter and method of manufacturing same

Apparatus and method for rapid charging using shared power electronics

Apparatus for transferring energy using power electronics and machine inductance and method of manufacturing same

Apparatus for energy transfer using converter and method of manufacturing same

Apparatus for rapid charging using onboard power electronics and method of manufacturing same

High efficiency photovoltaic inverter

Ripple-current reduction for transformers

KING ROBERT DEAN

Apparatus and method for rapid charging using shared power electronics

Apparatus for transferring energy using power electronics and machine inductance and method of manufacturing same

Apparatus for transferring energy using onboard power electronics and method of manufacturing same

Apparatus for transferring energy using onboard power electronics and method of manufacturing same

Apparatus for energy transfer using converter and method of manufacturing same

Apparatus for transferring energy using onboard power electronics and method of manufacturing same

LOCKHEED CORP

Ripple cancellation circuit for ultra-low-noise power supplies

Ultra-low-profile tube-type magnetics

Phase-shifted bridge with auxiliary circuit to maintain zero-voltage-switching

Phase-shifted PWM bridge with switchable inductors to maintain zero-voltage switching at light load

STEIGERWALD ROBERT LOUIS

Apparatus for transferring energy using onboard power electronics with high-frequency transformer isolation and method of manufacturing same

Transformer tap-changing circuit and method of making same

RAJU RAVISEKHAR NADIMPALLI

AC-AC converter with high frequency link

Alternating current to direct current power conversion