Inventor
Chien-Fu Tang
Inventor
Hsinchu, TW
Overview
Patents· 56 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 systems39%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications18%
H03KPulse technique11%
H05BElectric heating5%
G01RMeasuring electric variables4%
G05FSystems for regulating electric or magnetic variables4%
H03MCoding3%
G05BControl or regulating systems in general2%
H02BBoards, substations or switching arrangements for the supply or distribution of electric power2%
H02HEmergency protective circuit arrangements2%
PatentTitleYear
10,887,729Efficient risk model computations202110,686,383Power control circuit, pulse signal detection circuit, and pulse signal detection method202010,560,012ZVS control circuit for use in a flyback power converter202010,505,464Communication protocol circuit and discrete-time current sense circuit and method thereof201910,461,652Flyback power converter and secondary side control circuit thereof201910,461,624Power switch control circuit and open detection method thereof201910,355,612Flyback power converter circuit and secondary side controller circuit thereof201910,326,351Switching regulator and control circuit thereof201910,291,137Flyback power converter circuit and high voltage start-up circuit thereof201910,153,703Flyback power converter with programmable output and control circuit and control method thereof20189,966,857AC-to-DC power converter and control method and control integrated circuit thereof20189,964,972Mixed mode compensation circuit20189,703,302'Mixed mode compensation circuit'20179,627,982'Flyback power converter and control circuit thereof'20179,614,449'Flyback power converter with programmable output and control circuit and control method thereof'20179,570,989'Control circuit of power converter with error detection circuit and reverse adjusting circuit'20179,541,929'Mixed mode compensation circuit'20179,479,063'Frequency jittering control circuit and method for a PFM power supply'20169,450,486'Apparatus and method for implementing a multiple function pin in a BCM power supply'20169,362,834'Flyback power supply circuit with programmable function and control method thereof'20169,287,785'Voltage converting controller, voltage converting circuit, and control method for voltage converting'20169,270,186'Voltage converting controller, voltage converting circuit, and control method for voltage converting'20169,219,352'Power off delay circuit and method, and audio system with power off delay'20159,203,319'Soft-start switching power converting apparatus with pulse-frequency modulation technique'20159,203,295'Bleeding circuit and method for reducing power consumption of an EMI filter'20159,173,264'LED control device for phase-cut dimming system and control method thereof'20159,136,766'Switching power converting apparatus'20159,130,464'Soft-start switching power converting apparatus with pulse-frequency modulation technique'20159,104,216'Mixed mode compensation circuit and method for a power converter'20159,093,914'Bootstrap circuit and method for controlling the same'20159,083,253'Control circuit for power converting circuit'20159,042,126'Switching power converting apparatus, switching controller for the same, and method of controlling a bipolar junction transistor of the same'20159,024,607'Control circuit for power converter and method thereof'20158,907,648'Power factor correction circuit, control circuit therefor and method for driving load circuit through power factor correction'20148,823,424'Circuit and method for improving noise immunity of a single-end level shifter in a floating gate driver'20148,791,725'High voltage offset detection circuit'20148,779,806'Circuit and method for improving noise immunity of a single-end level shifter in a floating gate driver'20148,754,617'Reverse shunt regulator'20148,723,552'Configuration and method for improving noise immunity of a floating gate driver circuit'20148,724,349'Apparatus and method for output voltage calibration of a primary feedback flyback power module'20148,723,560'High voltage offset detection circuit'20148,717,091'Control circuit for power converter and method thereof'20148,704,590'Control circuit for power converter and method thereof'20148,674,554'Power off delay circuit and method, and audio system with power off delay'20148,643,292'Digital dimming device and digital dimming method'20148,634,212'Controller and controlling method for power converter'20148,570,020'Frequency control circuit and method for a non-constant frequency voltage regulator'20138,508,203'Control circuit of switching regulator and control method thereof and transistor device therefor'20138,400,127'Average current regulator and driver circuit thereof and method for regulating average current'20138,350,548'Frequency control circuit and method for a non-constant frequency voltage regulator'20138,320,149'Multi-chip module with master-slave analog signal transmission function'20128,295,022'Overstress protection apparatus and method'20128,253,507'Fixed-frequency control circuit and method for pulse width modulation'20127,800,425'On-chip mode-setting circuit and method for a chip'20107,795,755'Simple circuit and method for improving current balance accuracy of a power converter system'20107,576,522'Circuit and method for soft start of a switching regulator from a residual voltage'2009Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2009–2020Patents assigned to RICHTEK TECHNOLOGY CORP (53)· patent assignee history
2009–2020Based in Hsinchu, TW· patent location history
2012–2017Patents assigned to TANG CHIEN-FU (17)· patent assignee history
2012–2016Patents assigned to CHEN ISAAC Y (16)· patent assignee history
2013–2016Patents assigned to CHEN AN-TUNG (4)· patent assignee history
2014–2016Patents assigned to PAN JIUN-HUNG (5)· patent assignee history
2021Based in Union City, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICHTEK TECHNOLOGY CORP | 53 | 2009–2020 |
| TANG CHIEN-FUself | 17 | 2012–2017 |
| CHEN ISAAC Y | 16 | 2012–2016 |
| PAN JIUN-HUNG | 5 | 2014–2016 |
| CHEN AN-TUNG | 4 | 2013–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu, TW | 55 | 2009–2020 |
| Union City, California, US | 1 | 2021 |