3559018

Information

• Patent Grant
• 3559018

• References
• Source

• Patent Number

  3,559,018

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1971
  54 years ago

• CPC

  • H02P7/2855 - whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
  • G05B2219/42084 - Hybrid, analog loop, reference compensated by digital loop
  • Y10S388/902 - Compensation
  • Y10S388/908 - Frequency to voltage converter
  • Y10S388/912 - Pulse or frequency counter

• US Classifications

  • 388 - Electricity: motor control systems
  • 318 - Electricity: motive power systems