3889176

Information

• Patent Grant
• 3889176

• References
• Source

• Patent Number

  3,889,176

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1975
  49 years ago

• CPC

  • G05F1/12 - wherein the variable actually regulated by the final control device is ac
  • G05F1/38 - semiconductor devices only
  • H02M5/253 - using discharge tubes only
  • H02M7/066 - particular circuits having a special characteristic

• US Classifications

  • 323 - Electricity: power supply or regulation systems