Inventor · disambiguated record
Yi-Shan Chu
Also filed as: CHU YI-SHAN
20 granted patents·5 pending applications·254 citations·filing 2002–2015
94Inventor score
Top patents by PatentIndex Score
25 records- 0197US7193453B2Dual loop voltage regulation circuit of power supply chipLEADTREND TECH CORP·Filed 2005·Granted Mar 20, 2007·140 cites·15 claims
- 0287US8120931B2Power converter with control circuit and related control methodCHANG YUAN-WEN·Filed 2008·Granted Feb 21, 2012·31 cites·16 claims
- 0387US7772782B2Light emitting diode (LED) driving deviceLEADTREND TECH CORP·Filed 2007·Granted Aug 10, 2010·21 cites·14 claims
- 0478US9753077B2Abnormal connection detection methodRICHTEK TECHNOLOGY CORP·Filed 2015·Granted Sep 5, 2017·2 cites·12 claims
- 0572US7378824B2Voltage converter capable of avoiding voltage drop occurring in input signalLEADTREND TECH CORP·Filed 2006·Granted May 27, 2008·6 cites·34 claims
- 0671US7330361B1Capacitor charging moduleLEADTREND TECH CORP·Filed 2006·Granted Feb 12, 2008·10 cites·10 claims
- 0770US7821750B2Voltage converter for preventing switch device from being damaged by voltage spike by utilizing protection circuitLEADTREND TECH CORP·Filed 2006·Granted Oct 26, 2010·6 cites·8 claims
- 0863US7573730B2Charging device with boundary mode controlLEADTREND TECH CORP·Filed 2007·Granted Aug 11, 2009·6 cites·9 claims
- 0962US9520791B2Power controller with multi-function pin and power supply using the sameLEADTREND TECH CORP·Filed 2013·Granted Dec 13, 2016·2 cites·10 claims
- 1062US7154801B1Protection circuit of a memory module and the method thereofLEADTREND TECH CORP·Filed 2005·Granted Dec 26, 2006·5 cites·9 claims
- 1162US6788005B2Inverter and lamp ignition system using the sameAMBIT MICROSYSTEMS CORP·Filed 2002·Granted Sep 7, 2004·9 cites·19 claims
- 1260US7961481B2Pulse width modulation control circuit applied to charge output capacitorLEADTREND TECH CORP·Filed 2007·Granted Jun 14, 2011·4 cites·9 claims
- 1355US7446506B2Apparatus for preventing capacitor charger from overcharging and method thereofLEADTREND TECH CORP·Filed 2006·Granted Nov 4, 2008·2 cites·12 claims
- 1452US8362750B2Apparatus for preventing capacitor charger from overcharging and method thereofLEADTREND TECH CORP·Filed 2008·Granted Jan 29, 2013·1 cites·7 claims
- 1548US8797013B2Adaptive slope-compensation module and method thereofCHAO HSING-KUO·Filed 2011·Granted Aug 5, 2014·1 cites·17 claims
- 1646US2011133714A1Power converter with protection mechanism for diode in open-circuit condition and pulse-width-modulation controller thereofCHEN CHEN-MIN·Filed 2011·Application pending·0 cites
- 1744US6853166B1Capacitance charge device with adjustable clamping voltageALTEK CORP·Filed 2003·Granted Feb 8, 2005·2 cites·9 claims
- 1842US8283809B2Detecting device for detecting an operating mode of a system and detecting method thereofCHU YI-SHAN·Filed 2008·Granted Oct 9, 2012·0 cites·14 claims
- 1941US6982882B2High voltage charging circuit for charging a high voltage capacitorLEADTREND TECH CORP·Filed 2004·Granted Jan 3, 2006·4 cites·8 claims
- 2040US2009115390A1Power converter with protection mechanism for diode in open-circuit condition and pulse-width-modulation controller thereofCHEN CHEN-MIN·Filed 2007·Application pending·0 cites
- 2139US2012159207A1Power management device and method thereofCHAO HSING-KUO·Filed 2011·Application pending·0 cites
- 2238US2009091950A1Power converting circuit with open load protection functionCHAO HSING-KUO·Filed 2007·Application pending·0 cites
- 2337US7511974B2High voltage charging circuitLEADTREND TECH CORP·Filed 2004·Granted Mar 31, 2009·2 cites·15 claims
- 2435US8247981B2Integrated circuit and related method for determining operation modesChen ren-yi·Filed 2009·Granted Aug 21, 2012·0 cites·8 claims
- 2523US2016025779A1Method and circuit for confirming correctness of signal and charging system using sameCHU YI-SHAN·Filed 2015·Application pending·0 cites
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