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Inventor

Donald Richard Zimmanck

Inventor
Petaluma, CA, US

Overview

31→
Patents
2013–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 31 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H02Jprimary
H02JElectric power networks21%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems21%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications19%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution12%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids9%
G05BControl or regulating systems in general5%
H01FMagnets4%
G05FSystems for regulating electric or magnetic variables2%
Y02PClimate change mitigation technologies in the production or processing of goods2%
G01RMeasuring electric variables1%
PatentTitleYear
11,133,675Method and apparatus for synchronizing start-up of grid-forming inverters202111,073,807Method and apparatus for activation and de-activation of power conditioners in distributed resource island systems using low voltage AC202111,031,794Autonomous charge balancing of distributed AC coupled batteries with droop offset202110,996,704Method and apparatus for control of intelligent loads in microgrids202110,951,037Method and apparatus for time-domain droop control with integrated phasor current control202110,916,942Method and apparatus for increased energy harvest in a microgrid202110,903,654Method and apparatus for minimizing circulating currents in microgrids202110,707,775Method and apparatus for multi phase shift power converter control202010,707,681Method and apparatus for impedance matching in virtual impedance droop controlled power conditioning units202010,635,059Method and apparatus for activation and de-activation of power conditioners in distributed resource island systems using low voltage AC202010,516,270Method and apparatus for coordination of generators in droop controlled microgrids using hysteresis201910,511,178Autonomous charge balancing of distributed AC coupled batteries with droop offset201910,431,980Method and apparatus for increased energy harvest in a microgrid201910,141,868Method and apparatus for resonant power conversion201810,126,721Method and apparatus for activation and de-activation of power conditioners in distributed resource island systems using low voltage AC201810,079,557Efficient resonant topology for DC-AC inversion with minimal use of high frequency switches201810,008,854Method and apparatus for time-domain droop control with integrated phasor current control20189,948,204Method and apparatus for controlling resonant converter output power20189,531,300'Single phase cycloconverter with integrated line-cycle energy storage'20169,479,082'Method and apparatus for resonant power conversion'20169,450,500'Method and apparatus for modulating lower powers in resonant converters'20169,444,355'Method and apparatus for determining a bridge mode for power conversion'20169,444,367'Method and apparatus for generating single-phase power from a three-phase resonant power converter'20169,379,627'Power conversion circuit arrangements utilizing resonant alternating current linkage'20169,130,570'Four quadrant bidirectional switch'20159,048,744'Method and apparatus for resonant converter control'20159,031,140'Method and apparatus for transmitting combined power, control and data through an isolation barrier'20159,013,171'Method and apparatus for detecting a zero-voltage condition across four quadrant switches'20158,937,817'Lossless commutation during operation of a power converter'20158,797,767'Resonant power conversion circuit'20148,456,265'Transformer'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2021Patents assigned to ENPHASE ENERGY INC (31)· patent assignee history
2013–2018Patents assigned to FORNAGE MARTIN (8)· patent assignee history
2013–2018Patents assigned to ZIMMANCK DONALD RICHARD (8)· patent assignee history
2013–2021Based in Petaluma, CA, US· patent location history
2014Patents assigned to PEREIRA FABIO AUGUSTO MENDES (1)· patent assignee history
2015Patents assigned to FEDISON JEFFREY BERNARD (1)· patent assignee history
2021Based in Sebastopol, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ENPHASE ENERGY INC312013–2021
FORNAGE MARTIN82013–2018
ZIMMANCK DONALD RICHARDself82013–2018
FEDISON JEFFREY BERNARD12015
PEREIRA FABIO AUGUSTO MENDES12014
Locations
LocationPatentsSpan
Petaluma, California, US272013–2021
Sebastopol, California, US42021