Inventor

ZIMMANCK DONALD RICHARD

US44 patents

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

ZIMMANCK DONALD RICHARD

ENPHASE ENERGY INC

Method and apparatus for time-domain droop control with integrated phasor current control

Single phase cycloconverter with integrated line-cycle energy storage

Autonomous charge balancing of distributed AC coupled batteries with droop offset

Autonomous charge balancing of distributed AC coupled batteries with droop offset

Method and apparatus for transmitting combined power, control and data through an isolation barrier

Method and apparatus for activation and de-activation of power conditioners in distributed resource island systems using low voltage AC

Method and apparatus for activation and de-activation of power conditioners in distributed resource island systems using low voltage AC

Method and apparatus for activation and de-activation of power conditioners in distributed resource island systems using low voltage AC

Method and apparatus for synchronizing start-up of grid-forming inverters

Method and apparatus for modulating lower powers in resonant converters

Method and apparatus for determining a bridge mode for power conversion

Method and apparatus for detecting a zero-voltage condition across four quadrant switches

Autonomous charge balancing of distributed AC coupled batteries with droop offset

Voltage and current management in three-phase interconnected power systems using positive and negative sequence secondary control

Method and apparatus for time-domain droop control with integrated phasor current control

Method and apparatus for impedance matching in virtual impedance droop controlled power conditioning units

Method and apparatus for automatic interleaving of cycled loads in a microgrid

Method and apparatus for increased energy harvest in a microgrid

Method and apparatus for minimizing circulating currents in microgrids

Method and apparatus for time-domain droop control with integrated phasor current control

Method and apparatus for increased energy harvest in a microgrid

Method and apparatus for minimizing circulating currents in microgrids

Method and apparatus for coordination of generators in droop controlled microgrids using hysteresis

Method and apparatus for rapid shutdown of islandable inverters using open circuit detection

Method and apparatus for control of intelligent loads in microgrids

Methods and apparatus for discharge protection in a storage system

Method and apparatus for relative value generation of resources based on knapsack algorithms

Method and apparatus for tertiary control of microgrids with integrated over-current protection

Method and apparatus for impedance matching in virtual impedance droop controlled power conditioning units

Method and apparatus for increased energy harvest in a microgrid

Method and apparatus for resonant power conversion

Efficient resonant topology for DC-AC inversion with minimal use of high frequency switches

Method and apparatus for balancing loads on split-phase islanded systems

Power conversion circuit arrangements utilizing resonant alternating current linkage

Method and apparatus for multi phase shift power converter control

Method and apparatus for load control in a power system

FORNAGE MARTIN

Method and apparatus for generating single-phase power from a three-phase resonant power converter

Lossless commutation during operation of a power converter

Four quadrant bidirectional switch

Method and apparatus for controlling resonant converter output power

Method and apparatus for resonant power conversion

Transformer

Method and apparatus for resonant converter control

Resonant power conversion circuit