Inventor · disambiguated record
Ching-Ran Lee
Also filed as: LEE CHING-RAN
19 granted patents·2 pending applications·63 citations·filing 2006–2024
90Inventor score
Top patents by PatentIndex Score
21 records- 0193US8952626B2Lighting control systems and methodsHUANG YAO-TE·Filed 2011·Granted Feb 10, 2015·43 cites·31 claims
- 0271US7557522B2Preheat control device for modulating voltage of gas-discharge lampIND TECH RES INST·Filed 2007·Granted Jul 7, 2009·4 cites·13 claims
- 0366US8278847B2LED mixture control device and controlling method thereofCHEN PO-YEN·Filed 2010·Granted Oct 2, 2012·2 cites·13 claims
- 0465US8148920B2Method of controlling a ballast for a high intensity discharge lamp and related systemLEE LI-LING·Filed 2009·Granted Apr 3, 2012·5 cites·18 claims
- 0561US8901900B2Buck power factor correction systemTSAI WEN-TIEN·Filed 2012·Granted Dec 2, 2014·2 cites·18 claims
- 0661US8242757B2Constant power control apparatus and control method thereofHUANG YAO-TE·Filed 2009·Granted Aug 14, 2012·2 cites·21 claims
- 0760US12137502B2Linear driving moduleIND TECH RES INST·Filed 2022·Granted Nov 5, 2024·0 cites·20 claims
- 0858US9048750B2Active buck power factor correction deviceTSAI WEN-TIEN·Filed 2012·Granted Jun 2, 2015·1 cites·14 claims
- 0957US8653428B2Solar-powered wireless communication module with daylight intensity measurementCHEN PO-YEN·Filed 2009·Granted Feb 18, 2014·1 cites·6 claims
- 1055US9257904B2Direct current conversion circuitIND TECH RES INST·Filed 2013·Granted Feb 9, 2016·1 cites·17 claims
- 1155US2025192659A1Spike suppression device for suppressing current-spike in switched capacitor circuitIND TECH RES INST·Filed 2024·Application pending·0 cites
- 1255US2025015724A1Forward converter and forward power factor correctorIND TECH RES INST·Filed 2024·Application pending·0 cites
- 1354US7545102B2Single-stage electronic ballast deviceIND TECH RES INST·Filed 2006·Granted Jun 9, 2009·2 cites·8 claims
- 1448US9549444B2Dimming system and operating method thereofIND TECH RES INST·Filed 2014·Granted Jan 17, 2017·0 cites·20 claims
- 1547US8749165B2Light source driving device including a switching current adjustment circuitCHEN YUNG-CHUAN·Filed 2011·Granted Jun 10, 2014·0 cites·22 claims
- 1646US12445050B2Voltage converter with reduced inductive energy conversionIND TECH RES INST·Filed 2022·Granted Oct 14, 2025·0 cites·7 claims
- 1746US10986715B1LED driving circuit and methodIND TECH RES INST·Filed 2019·Granted Apr 20, 2021·0 cites·13 claims
- 1846US9343956B2Passive power factor correction circuit, electronic device applying the same and operation methods thereofIND TECH RES INST·Filed 2013·Granted May 17, 2016·0 cites·11 claims
- 1943US8878459B2Method for identifying rated power of HID lampTSAI WEN-TIEN·Filed 2012·Granted Nov 4, 2014·0 cites·20 claims
- 2042US9190904B2DC conversion circuitIND TECH RES INST·Filed 2013·Granted Nov 17, 2015·0 cites·13 claims
- 2133US9041293B2Lamp control system, lamp power-saving system and method thereforCHEN SUI-TSUNG·Filed 2012·Granted May 26, 2015·0 cites·19 claims
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