Inventor
Guang-Nan Tzeng
Inventor
Hsinchu, TW
Overview
Patents· 18 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 systems36%
G01RMeasuring electric variables11%
H03FAmplifiers11%
H03KPulse technique11%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters7%
H04NPictorial communication, e.g. television7%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications7%
G06KGraphical data reading4%
H02HEmergency protective circuit arrangements4%
H02JElectric power networks4%
PatentTitleYear
11,101,647Overvoltage protection circuit20217,279,869'PFM control circuit for DC regulator'20077,180,274'Switching voltage regulator operating without a discontinuous mode'20077,176,667'Buck-boost voltage converter'20077,071,665'Method of reducing a ripple of a heavy loading pulse frequency modulated voltage regulator'20067,050,914'Current sensing circuit'20067,015,663'Brushless motor drive device'20067,009,857'Soft-start charge pump circuit'20066,995,603'High efficiency charge pump with prevention from reverse current'20066,972,548'Pulse frequency modulated voltage regulator capable of prolonging a minimum off-time'20056,924,611'Brushless motor drive device'20056,911,867'Error amplifier and DC-DC converter and the method thereof'20056,903,537'Switching DC-to-DC converter with multiple output voltages'20056,861,830'Method of improving transient noise of a switching DC-to-DC converter with multiple output voltages'20056,791,368'Current sensing circuit and method of a high-speed driving stage'20045,867,381'Full-wave rectifying device having an amplitude modulation function'19995,663,759'Feature processor for a digital camera'19975,499,058'Digital color encoder using triangular wave modulation'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–1999Patents assigned to IND TECH RES INST (3)· patent assignee history
1996–1999Based in Taichung, TW· patent location history
2004–2007Patents assigned to AIMTRON TECHNOLOGY CORP (14)· patent assignee history
2004–2021Based in Hsinchu, TW· patent location history
2021Patents assigned to GLOBAL MIXED MODE TECHNOLOGY INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AIMTRON TECHNOLOGY CORP | 14 | 2004–2007 |
| IND TECH RES INST | 3 | 1996–1999 |
| GLOBAL MIXED MODE TECHNOLOGY INC | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu, TW | 15 | 2004–2021 |
| Taichung, TW | 3 | 1996–1999 |