CPC Subgroup
H05B 45/3725 Switched mode power supply [SMPS]
Full Title
Circuit arrangements for operating light-emitting diodes [LED] > Driver circuits > Converter circuits > Switched mode power supply [SMPS]
6 direct subcodes
Child Classifications
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- H05B 45/375 using buck topology
- H05B 45/38 using boost topology
- H05B 45/382 with galvanic isolation between input and output
- H05B 45/385 using flyback topology
- H05B 45/39 Circuits containing inverter bridges
- H05B 45/392 wherein the LEDs are placed as freewheeling diodes at the secondary side of an isolation transformer
Top Applicants
Top 10 applicants by patent filingsfor class H05, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 9,981
- SAMSUNG DISPLAY KR 5,041
- LG ELECTRONICS KR 4,742
- PHILIP MORRIS PRODUCTS CH 4,411
- PANASONIC INTELLECTUAL PROPERTY JP 3,915
- PANASONIC INTELLECTUAL PROPERTY 3,471
- SAMSUNG ELECTRO-MECHANICS COMPANY KR 3,210
- MURATA MANUFACTURING COMPANY JP 3,191
- FUJI JP 2,987
- SIGNIFY HOLDING NL 2,907