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CPC Main Group
H02P 9/00

Arrangements for controlling electric generators for the purpose of obtaining a desired output

15 direct subcodes

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  • H02P 9/02 Details
  • H02P 9/04 Control effected upon non-electric prime mover and dependent upon electric output value of the generator
  • H02P 9/06 Control effected upon clutch or other mechanical power transmission means and dependent upon electric output value of the generator
  • H02P 9/08 Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation
  • H02P 9/40 by variation of reluctance of magnetic circuit of generator
  • H02P 9/42 to obtain desired frequency without varying speed of the generator
  • H02P 9/44 Control of frequency and voltage in predetermined relation, e.g. constant ratio
  • H02P 9/46 Control of asynchronous generator by variation of capacitor
  • H02P 9/48 Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle (H02P9/04 - H02P9/46 take precedence)

Top Applicants

Top 10 applicants by patent filingsfor class H02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 24,515
  2. MITSUBISHI ELECTRIC CORPORATION JP 11,346
  3. SIEMENS DE 9,026
  4. ROBERT BOSCH DE 9,005
  5. SAMSUNG ELECTRONICS COMPANY KR 6,729
  6. GUANGDONG POWER GRID CORPORATION 5,740
  7. DENSO CORPORATION JP 5,077
  8. LG ELECTRONICS KR 5,041
  9. LG INNOTEK COMPANY KR 4,442
  10. TOYOTA MOTOR CORPORATION 4,349