Inventor

Lihua Chen

Inventor

Farmington Hills, MI, US

Overview

2013–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 60 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 systems17%

B60LPropulsion of electrically-propelled vehicles17%

Y02TClimate change mitigation technologies related to transportation16%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters11%

H03KPulse technique5%

H02JElectric power networks3%

H05KPrinted circuits3%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles3%

B60YIndexing scheme relating to aspects cross-cutting vehicle technology2%

PatentTitleYear

10,833,596Integrated power unit for a power supply device2020 10,790,763HEV e-drives with HV boost ratio and wide DC bus voltage range2020 10,790,775Electric drive for electric vehicles2020 10,773,601Integrated precharging and discharging for electric vehicle drive system capacitors2020 10,778,105Interleaved DC-DC converter for electrified vehicles2020 10,770,970Flying capacitor based variable voltage converter2020 10,765,042Integrated power module and capacitor module thermal and packaging design2020 10,757,843Vehicular traction inverter temperature control system2020 10,756,638Transformer based variable voltage converter2020 10,737,575Power device parameter adjustment2020 10,715,042High gain DC-DC converter for electrified vehicles2020 10,707,771Integrated mechanical and thermal design for power storage of a traction inverter2020 10,700,681Paralleled power module with additional emitter/source path2020 10,618,423Isolated dual bus hybrid vehicle drivetrain2020 10,618,428Variable voltage controller2020 10,611,246Gate driver with temperature compensated turn-off2020 10,581,363Isolated dual bus hybrid vehicle drivetrain2020 10,581,361Multiple inverter system for an electric machine2020 10,576,828Variable voltage converter modulation obtaining lower minimum boost ratio2020 10,574,223Paralleled power semiconductors with chokes in gate path2020 10,525,841Gate driver with short circuit protection2020 10,500,959Single supply hybrid drive resonant gate driver2019 10,500,966Adaptive boost voltage for hybrid vehicle operation2019 10,505,449Electric drive with input inductor based variable voltage converter2019 10,491,095Dynamic IGBT gate drive for vehicle traction inverters2019 10,491,028Wireless power transfer with generalized harmonic current2019 10,476,380Common-mode choke for paralleled power semiconductor2019 10,432,186Variable resistance power switch feedback2019 D0858852LED lighting2019 10,403,558Power module with multi-layer substrate2019 10,389,352Gate loop differential mode choke for parallel power device switching current balance2019 10,384,561Active discharge circuit for link capacitor using phase leg switches2019 D0851805LED lighting2019 10,320,220Configurable hybrid drive systems2019 10,312,810Interleaved DC-DC converter having stacked output capacitors2019 10,272,785Fault detection of a bypass diode in a variable voltage convert system2019 10,252,618Backup electrical supply for main capacitor discharge2019 10,211,827Resonant gate driver2019 10,210,982Common-mode choke for paralleled power semiconductor with integrated current sensor2019 10,173,534Variable voltage converter control in vehicles2019 10,144,296Gate driver with temperature compensated turn-off2018 10,137,789Signal pin arrangement for multi-device power module2018 10,141,862Power supply device2018 10,093,184Direct current voltage clamping in a vehicle2018 10,090,792Self-balancing parallel power devices with a temperature compensated gate driver2018 10,035,422Self-limiting active discharge circuit for electric vehicle inverter2018 9,931,944Variable voltage convert system with reduced bypass diode conduction2018 9,862,276'Fault protection for electric drive systems'2018 9,855,850'Variable carrier switching frequency control of variable voltage converter'2018 9,837,887IGBT gate drive with active turnoff to reduce switching loss2017 9,834,206Fault-tolerant operation of hybrid electric vehicle2017 9,776,931'Facility secondary NO3âˆ’ salinized soil modifier, preparation method and modification method'2017 9,742,275'Variable voltage converter with direct output voltage clamping for inverter system controller'2017 9,445,532'Integrated electrical and thermal solution for inverter DC-link capacitor packaging'2016 9,322,852'Gate drive under-voltage detection'2016 9,300,780'Phone'2016 9,191,563'Zoom lens apparatus with focus adjusting and optical imaging device therewith'2015 9,190,896'PWM strategy for reduction of inverter hotspot temperature and overall losses'2015 9,088,224'Variable voltage converter with stabilized output voltage'2015 8,575,778'Variable voltage converter (VVC) with integrated battery charger'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2020Patents assigned to FORD GLOBAL TECH LLC (54)· patent assignee history

2013–2019Patents assigned to CHEN LIHUA (5)· patent assignee history

2013–2019Based in Northville, MI, US· patent location history

2015–2016Patents assigned to BOLY MEDIA COMM SHENZHEN CO (2)· patent assignee history

2015Patents assigned to CHEN CHINGCHI (1)· patent assignee history

2015–2016Based in Shenzhen, CN· patent location history

2017–2020Based in Farmington Hills, MI, US· patent location history

2017Based in Nanjing, CN· patent location history

2019Patents assigned to SHENZHEN HNLIFE LIGHTING TECH CO LTD (2)· patent assignee history

2019Based in Guang Dong, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FORD GLOBAL TECH LLC	54	2013–2020
CHEN LIHUAself	5	2013–2019
BOLY MEDIA COMM SHENZHEN CO	2	2015–2016
SHENZHEN HNLIFE LIGHTING TECH CO LTD	2	2019
CHEN CHINGCHI	1	2015

Locations

Location	Patents	Span
Farmington Hills, MI, US	39	2017–2020
Northville, MI, US	16	2013–2019
Guang Dong, CN	2	2019
Shenzhen, CN	2	2015–2016
Nanjing, CN	1	2017