Inventor
Wei-Hsu Chang
Inventor
New Taipei, TW
Overview
Patents· 26 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
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 systems31%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters12%
H02JElectric power networks10%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications10%
G01RMeasuring electric variables5%
G05BControl or regulating systems in general5%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%
G01KMeasuring temperature2%
G01VGeophysics2%
G05DSystems for controlling or regulating non-electric variables2%
PatentTitleYear
10,741,348Power transmission apparatus202010,715,028Flyback power converter and ZVS control circuit and control method thereof202010,705,497Foreign object detection method and power system capable of detecting foreign object202010,601,238Charging apparatus and charging control circuit thereof and charging control method202010,528,067Interface device and interface temperature monitoring device202010,181,734Charging control method and charging system, power delivery unit, and power receiver control circuit using the method201910,181,782Flyback power converter circuit with active clamping and zero voltage switching and conversion control circuit thereof201910,103,616Flyback power converter circuit with active clamping and zero voltage switching and conversion control circuit thereof20189,966,770Charging apparatus and charging control circuit and control method thereof20189,654,037'Multi-phase motor control method and device using the same'20178,994,315'Motor controller'20158,994,310'Motor controller having multi-functional pin and control method thereof'20158,912,744'Method and apparatus for dynamically adjusting a dead time of brushless direct current motor during a phase change'20148,860,483'Pulse width modulation signal generation circuit and pulse width modulation signal generation method'20148,558,521'Operating phase number dependent compensation of a multi-phase buck converter'20138,525,497'Using offset cancellation circuit to mitigate beat-frequency oscillation of phase currents in a multiphase interleaved voltage regulator'20138,487,571'Zero-crossing detection circuit and commutation device using the zero-crossing detection circuit'20138,436,594'Control circuit and method for a digital synchronous switching converter'20138,421,429'Control circuit and method for a power converter controlling adaptive voltage position'20138,335,758'Data ETL method applied to real-time data ETL system'20128,188,722'DC gain improvement of a digitally controlled DC-DC converter by LSB tuning'20128,030,911'Hybrid control circuit and method'20117,876,075'Control circuit and method for a power converter'20117,656,136'Digital voltage converter with constant off-time and variable on-time of controller'20107,652,460'Digital compensator design method and digital compensator for a switching mode power supply'20107,548,048'Switching mode power supply and method for determining a compensation factor thereof'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2020Patents assigned to RICHTEK TECHNOLOGY CORP (24)· patent assignee history
2009–2020Based in Hsinchu, TW· patent location history
2010–2013Based in Jubei, TW· patent location history
2011–2013Based in Zhubei City, TW· patent location history
2012–2017Patents assigned to CHANG WEI-HSU (11)· patent assignee history
2012–2013Patents assigned to CHEN DAN (4)· patent assignee history
2012Based in Jiangsu, CN· patent location history
2013–2017Patents assigned to LEE KUO-CHUNG (3)· patent assignee history
2013–2015Patents assigned to WANG JO-YU (3)· patent assignee history
2013–2020Based in New Taipei, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICHTEK TECHNOLOGY CORP | 24 | 2009–2020 |
| CHANG WEI-HSUself | 11 | 2012–2017 |
| CHEN DAN | 4 | 2012–2013 |
| LEE KUO-CHUNG | 3 | 2013–2017 |
| WANG JO-YU | 3 | 2013–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| New Taipei, TW | 10 | 2013–2020 |
| Jubei, TW | 7 | 2010–2013 |
| Hsinchu, TW | 6 | 2009–2020 |
| Zhubei City, TW | 2 | 2011–2013 |
| Jiangsu, CN | 1 | 2012 |