Inventor
LI YUSHAN
US30 patents
⚠️ This page may combine multiple inventors who share the name “LI YUSHAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT SEMICONDUCTOR CORP
10 patentsUS7679433B1Mar 16, 2010
Circuit and method for RF power amplifier power regulation and modulation envelope tracking
NAT SEMICONDUCTOR CORP151 citations99
US6914487B1Jul 5, 2005
Method and system for providing power management in a radio frequency power amplifier using adaptive envelope tracking
NAT SEMICONDUCTOR CORP183 citations99
US7915961B1Mar 29, 2011
Power amplifier multiple stage control for polar modulation circuit
NAT SEMICONDUCTOR CORP75 citations98
US6900697B1May 31, 2005
Method and system for providing power management in a radio frequency power amplifier by dynamically adjusting supply and bias conditions
NAT SEMICONDUCTOR CORP87 citations98
US7821238B1Oct 26, 2010
Feedback loop compensation for buck/boost switching converter
NAT SEMICONDUCTOR CORP24 citations92
US7723969B1May 25, 2010
System and method for providing a low drop out circuit for a wide range of input voltages
NAT SEMICONDUCTOR CORP28 citations92
US7342387B1Mar 11, 2008
System and method for providing a highly efficient wide bandwidth power supply for a power amplifier
NAT SEMICONDUCTOR CORP26 citations92
US6617836B1Sep 9, 2003
CMOS sub-bandgap reference with an operating supply voltage less than the bandgap
NAT SEMICONDUCTOR CORP15 citations92
US7868601B1Jan 11, 2011
System and method for controlling a regulator circuit for radio frequency power amplifier biases
NAT SEMICONDUCTOR CORP11 citations84
US7701690B1Apr 20, 2010
System and method for suppressing load transients in radio frequency power amplifier switching power supplies
NAT SEMICONDUCTOR CORP16 citations77
HUAWEI DIGITAL POWER TECH CO LTD
4 patentsUS11784577B2Oct 10, 2023
Low noise power conversion system and method
HUAWEI DIGITAL POWER TECH CO LTD2 citations73
US11527960B2Dec 13, 2022
Auxiliary power supply apparatus and method for isolated power converters
HUAWEI DIGITAL POWER TECH CO LTD1 citations73
US11848603B2Dec 19, 2023
Auxiliary power supply apparatus and method for isolated power converters
HUAWEI DIGITAL POWER TECH CO LTD0 citations62
US11664726B2May 30, 2023
Switched capacitor converter and control method
HUAWEI DIGITAL POWER TECH CO LTD1 citations62
LI YUSHAN
3 patentsUS8098093B1Jan 17, 2012
Efficient envelope tracking power supply for radio frequency or other power amplifiers
LI YUSHAN66 citations96
US8072196B1Dec 6, 2011
System and method for providing a dynamically configured low drop out regulator with zero quiescent current and fast transient response
LI YUSHAN47 citations93
US8184727B2May 22, 2012
Robust integer carrier frequency offset estimator
LI YUSHAN1 citations42
GREAT WALL MOTOR CO LTD
3 patentsUS12409732B2Sep 9, 2025
Environment temperature determination method, motor control unit, control system, and storage medium
GREAT WALL MOTOR CO LTD0 citations48
US11801837B2Oct 31, 2023
Vehicle control method, device, storage medium, and vehicle
GREAT WALL MOTOR CO LTD0 citations48
US12567616B2Mar 3, 2026
Method for controlling heating of battery pack, computational processing device, and non-transitory computer readable storage medium
GREAT WALL MOTOR CO LTD0 citations44
KONINKL PHILIPS ELECTRONICS NV
2 patentsPHILIPS ELECTRONICS NA
2 patentsUS6359391B1Mar 19, 2002
System and method for overvoltage protection during pulse width modulation dimming of an LCD backlight inverter
PHILIPS ELECTRONICS NA39 citations92
US6376999B1Apr 23, 2002
Electronic ballast employing a startup transient voltage suppression circuit
PHILIPS ELECTRONICS NA17 citations84