Inventor · disambiguated record
Sang Hyun Cha
Also filed as: CHA SANG HYUN
21 granted patents·28 pending applications·38 citations·filing 2009–2024
91Inventor score
Top patents by PatentIndex Score
49 records- 0189US9301353B2Light emitting diode driving apparatusSAMSUNG ELECTRO MECH·Filed 2014·Granted Mar 29, 2016·14 cites·15 claims
- 0281US8994281B2Light emitting diode driving apparatusHWANG JONG TAE·Filed 2012·Granted Mar 31, 2015·5 cites·12 claims
- 0377US8917025B2Light emitting diode driving apparatusPARK DEUK HEE·Filed 2012·Granted Dec 23, 2014·5 cites·12 claims
- 0475US9173265B2Light emitting diode driving apparatus and light emitting diode lighting apparatusSAMSUNG ELECTRO MECH·Filed 2014·Granted Oct 27, 2015·3 cites·15 claims
- 0571US8981658B2Apparatus for driving light emitting diodeSAMSUNG ELECTRO MECH·Filed 2013·Granted Mar 17, 2015·2 cites·17 claims
- 0668US8030991B2Frequency tuning and direct current offset canceling circuit for continuous-time analog filter with time dividedSAMSUNG ELECTRO MECH·Filed 2009·Granted Oct 4, 2011·3 cites·14 claims
- 0767US8471788B2Organic light emitting diode driverCHA SANG HYUN·Filed 2011·Granted Jun 25, 2013·2 cites·9 claims
- 0863US9287777B2Average current controller, average current control method and buck converter using the average current controllerSAMSUNG ELECTRO MECH·Filed 2013·Granted Mar 15, 2016·2 cites·22 claims
- 0961US2025180771A1Moisture detection circuits and methods for serial bus connectorsSILICON MITUS INC·Filed 2024·Application pending·0 cites
- 1058US8975927B2Gate driverSAMSUNG ELECTRO MECH·Filed 2013·Granted Mar 10, 2015·1 cites·6 claims
- 1157US8796942B2LED circuitLEE YEUN JOONG·Filed 2011·Granted Aug 5, 2014·1 cites·8 claims
- 1253US9204506B2Light emitting diode driving apparatusSAMSUNG ELECTRO MECH·Filed 2014·Granted Dec 1, 2015·0 cites·14 claims
- 1353US9024531B2Apparatus for driving light emitting diodeSAMSUNG ELECTRO MECH·Filed 2013·Granted May 5, 2015·0 cites·13 claims
- 1453US8816589B2Light emitting diode driving apparatusSAMSUNG ELECTRO MECH·Filed 2012·Granted Aug 26, 2014·0 cites·19 claims
- 1551US9066399B2Illumination driving apparatus for light emitting diode and method thereofSAMSUNG ELECTRO MECH·Filed 2013·Granted Jun 23, 2015·0 cites·23 claims
- 1650US8975824B2PWM driving circuit and PWM driving methodSAMSUNG ELECTRO MECH·Filed 2012·Granted Mar 10, 2015·0 cites·20 claims
- 1749US9083248B2PWM control circuit, flyback converter and method for controlling PWMSAMSUNG ELECTRO MECH·Filed 2013·Granted Jul 14, 2015·0 cites·20 claims
- 1848US2015062978A1Circuit for generating reference signal for controlling peak current of converter switch, isolated converter and method for generating reference signal for controlling peak current of converter switchSAMSUNG ELECTRO MECH·Filed 2014·Application pending·0 cites
- 1948US2015062977A1Circuit for generating reference signal for controlling peak current of converter switch, isolated converter and method for generating reference signal for controlling peak current of converter switchSAMSUNG ELECTRO MECH·Filed 2014·Application pending·0 cites
- 2048US2015115828A1Light emitting diode driving apparatus and light emitting diode lighting appratusSAMSUNG ELECTRO MECH·Filed 2014·Application pending·0 cites
- 2147US2015115821A1Light emitting diode driver and method of controlling the sameSAMSUNG ELECTRO MECH·Filed 2014·Application pending·0 cites
- 2246US2015002037A1Light emitting diode driving apparatusSAMSUNG ELECTRO MECH·Filed 2013·Application pending·0 cites
- 2346US2014001958A1Circuit, device and method of directly driving ledSAMSUNG ELECTRO MECH·Filed 2013·Application pending·0 cites
- 2446US2015002045A1Light emitting diode driving apparatus and light emitting diode lighting apparatusSAMSUNG ELECTRO MECH·Filed 2013·Application pending·0 cites
- 2546US2014368119A1Light emitting diode lighting apparatus and driving method thereofSAMSUNG ELECTRO MECH·Filed 2013·Application pending·0 cites
- 2646US2014184078A1Light emitting diode driving deviceSAMSUNG ELECTRO MECH·Filed 2013·Application pending·0 cites
- 2745US2014001980A1Circuit and method for driving led lightSAMSUNG ELECTRO MECH·Filed 2013·Application pending·0 cites
- 2843US9780771B2Gate driving circuit including constant current sources, and switching apparatus and power supply apparatus having the sameSAMSUNG ELECTRO MECH·Filed 2014·Granted Oct 3, 2017·0 cites·14 claims
- 2942US9755502B2Start-up circuit and power device using the sameSOLUM CO LTD·Filed 2015·Granted Sep 5, 2017·0 cites·15 claims
- 3042US8749147B2LED circuitLEE YEUN JOONG·Filed 2011·Granted Jun 10, 2014·0 cites·9 claims
- 3142US2013134901A1Driving apparatus for light emitting diode and control method thereofPARK CHAN WOO·Filed 2012·Application pending·0 cites
- 3242US2013033191A1Light emitting diode driving device and method thereofSAMSUNG ELECTRO MECH·Filed 2011·Application pending·0 cites
- 3341US8890431B2LED driving apparatus and methodLEE CHANGE SEOK·Filed 2011·Granted Nov 18, 2014·0 cites·9 claims
- 3441US2014003098A1Pwm control circuit for dc-dc converter, flyback converter, and method of controlling pwm of dc-dc converterSAMSUNG ELECTRO MECH·Filed 2013·Application pending·0 cites
- 3539US8779682B2Illumination driving apparatusCHOI JOONG HO·Filed 2011·Granted Jul 15, 2014·0 cites·10 claims
- 3639US2014001973A1Light emitting diode driving apparatusPARK DEUK HEE·Filed 2012·Application pending·0 cites
- 3739US2015116013A1Integrated circuitSAMSUNG ELECTRO MECH·Filed 2014·Application pending·0 cites
- 3838US2012044271A1Active matrix organic light emitting diode display having deterioration detection function in programming periodLEE YEUN JOONG·Filed 2011·Application pending·0 cites
- 3938US2012056866A1Active matrix organic light emitting diode display having reset functionLEE YEUN JOONG·Filed 2011·Application pending·0 cites
- 4037US2012044360A1Deterioration sensing apparatus for display deviceCHA SANG HYUN·Filed 2011·Application pending·0 cites
- 4137US2014184307A1Gate driver having function of preventing shoot-through currentSAMSUNG ELECTRO MECH·Filed 2013·Application pending·0 cites
- 4237US2012044235A1Active matrix organic light emitting diode displayCHA SANG HYUN·Filed 2011·Application pending·0 cites
- 4337US2013162154A1Driving apparatus for light emitting diodeLEE YEUN JOONG·Filed 2012·Application pending·0 cites
- 4437US2013257305A1Light emitting diode driving apparatusLEE YEUN JOONG·Filed 2012·Application pending·0 cites
- 4537US2012056869A1Organic light emitting diode driverCHA SANG HYUN·Filed 2011·Application pending·0 cites
- 4636US2011316825A1Organic electroluminescence displayCHA SANG HYUN·Filed 2010·Application pending·0 cites
- 4736US2012032991A1Organic light emitting diode driverCHA SANG HYUN·Filed 2011·Application pending·0 cites
- 4834US2012319609A1Light emitting diode driver having offset voltage compensating functionCHOI JOONG HO·Filed 2011·Application pending·0 cites
- 4933US2011317536A1Current driving circuit and light storage system having the sameCHA SANG HYUN·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →