3646439

Information

• Patent Grant
• 3646439

• References
• Source

• Patent Number

  3,646,439

• Date Filed

  Not available

• Date Issued

  Tuesday, February 29, 1972
  53 years ago

• CPC

  • G05F1/445 - being transistors in series with the load
  • H05B39/081 - by measuring the incident light
  • Y10S323/902 - Optical coupling to semiconductor

• US Classifications

  • 323 - Electricity: power supply or regulation systems
  • 315 - Electric lamp and discharge devices: systems
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems