Inventor
Kwan-Jen Chu
Inventor
Hsinchu, TW
Overview
Patents· 53 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 systems38%
H02JElectric power networks17%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications12%
H05BElectric heating11%
G06FElectric digital data processing4%
G05FSystems for regulating electric or magnetic variables3%
G11CStatic stores3%
H03KPulse technique3%
H10BElectronic memory devices3%
H10DInorganic electric semiconductor devices3%
PatentTitleYear
10,079,549Synchronous rectification controller with pull-up and pull-down circuit and power conversion apparatus having the same201810,056,845Power conversion apparatus and synchronous rectification controller thereof20189,350,251'Power conversion apparatus and over power protection method thereof'20169,343,977'Power conversion apparatus and over power protection method thereof'20169,343,976'Power supply apparatus with discharge circuit'20169,059,635'Power converter control circuit'20158,890,485'Charger circuit'20148,762,763'Single-wire transmission interface and method of transmission through single-wire'20148,742,689'Light emitting diode driving apparatus'20148,698,449'Charger with detection of power input type'20148,648,573'Charger and portable device having the same'20148,547,078'Methods for light load efficiency improvement of a buck boost voltage regulator'20138,525,484'Charger and portable device having the same'20138,400,133'Output current detection of a voltage regulator'20138,378,640'Charging circuit with application system thereof'20138,294,439'Buck-boost switching regulator and control circuit and method therefor'20128,283,974'Fast start-up low-voltage bandgap reference voltage generator'20128,269,461'Hybrid battery charger and control circuit and method thereof'20128,248,049'NMOSFET-base linear charger'20128,203,234'Power safety system'20128,198,830'Perceptually linear LED brightness control'20128,169,159'Boost converter LED driver and controller thereof'20128,169,208'Output current detection of a voltage regulator'20128,169,198'Anti-ring asynchronous boost converter and anti-ring method for an asynchronous boost converter'20128,159,195'Overvoltage protection circuit for use in charger circuit system and charge circuit with overvoltage protection function'20128,140,726'Single wire transmission interface and method for the same'20128,085,014'Dual power switch with activation control and voltage regulator using same'20118,049,462'Universal serial bus charger circuit and charging method'20117,994,728'Boost driver circuit with fast discharging function'20117,940,596'Adaptive zero current sense apparatus and method for a switching regulator'20117,906,939'Soft-stop circuit and method for a voltage regulator'20117,898,227'Non-synchronous boost converter including low-voltage device for load disconnection'20117,876,000'Power path control circuit'20117,847,516'Circuit and method for detecting absent battery condition in a linear charger'20107,751,471'Pulse width modulation regulator system with automatically switching pulse skipping mode'20107,746,926'Pulse width modulation regulator system with automatically switching pulse skipping mode'20107,714,556'Quick response switching regulator and control method thereof'20107,714,645'Offset cancellation of a single-ended operational amplifier'20107,696,806'Level shift circuit and method for the same'20107,667,530'Charge pump down circuit and method for the same'20107,656,133'Capacitor charger with a modulated current varying with an input voltage and method thereof'20107,652,945'Adaptive zero current sense apparatus and method for a switching regulator'20107,619,394'Capacitor charger with a modulated current varying with an input voltage and method thereof'20097,605,571'Switching regulator with lower transistor capable of two states of ON or low current'20097,580,271'Apparatus and method for suppressing the input current inrush for a voltage converter in a pre-charge stage'20097,518,888'Control circuit and method for a fly-back voltage converter'20097,411,379'Apparatus and method for over-voltage and over-current protection for a step-up current-mode converter'20087,170,763'Apparatus and method for constant delta current control in a capacitor charger'20077,148,666'Direct current voltage boosting/bucking device'20067,062,738'Flash memory compiler with flexible configurations'20066,639,847'Elimination of address-sensitivity by synchronous reference for sense amplifier'20036,369,428'Polysilicon load for 4T SRAM operating at cold temperatures'20026,238,993'Polysilicon load for 4T SRAM operation at cold temperatures'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2002Based in Kaohsiung, TW· patent location history
2003–2018Based in Hsinchu, TW· patent location history
2006–2014Patents assigned to RICHTEK TECHNOLOGY CORP (39)· patent assignee history
2011–2014Patents assigned to CHU KWAN-JEN (21)· patent assignee history
2011–2014Patents assigned to KUNG NIEN-HUI (14)· patent assignee history
2011–2013Patents assigned to CHIU TZU-HUAN (4)· patent assignee history
2012–2014Patents assigned to LEE LI-WEI (6)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICHTEK TECHNOLOGY CORP | 39 | 2006–2014 |
| CHU KWAN-JENself | 21 | 2011–2014 |
| KUNG NIEN-HUI | 14 | 2011–2014 |
| LEE LI-WEI | 6 | 2012–2014 |
| CHIU TZU-HUAN | 4 | 2011–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu, TW | 51 | 2003–2018 |
| Kaohsiung, TW | 2 | 2001–2002 |