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CPC Subgroup
H05B 45/392

wherein the LEDs are placed as freewheeling diodes at the secondary side of an isolation transformer

Full Title

Circuit arrangements for operating light-emitting diodes [LED] > Driver circuits > Converter circuits > Switched mode power supply [SMPS] > 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

  1. SAMSUNG ELECTRONICS COMPANY KR 9,981
  2. SAMSUNG DISPLAY KR 5,041
  3. LG ELECTRONICS KR 4,742
  4. PHILIP MORRIS PRODUCTS CH 4,411
  5. PANASONIC INTELLECTUAL PROPERTY JP 3,915
  6. PANASONIC INTELLECTUAL PROPERTY 3,471
  7. SAMSUNG ELECTRO-MECHANICS COMPANY KR 3,210
  8. MURATA MANUFACTURING COMPANY JP 3,191
  9. FUJI JP 2,987
  10. SIGNIFY HOLDING NL 2,907