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STATE DETECTION DEVICE FOR DETECTING OPERATION STATE OF HIGH-FREQUENCY HEATING APPARATUS

  • US 20100102797A1
  • Filed: 12/31/2009
  • Published: 04/29/2010
  • Est. Priority Date: 12/26/2005
  • Status: Active Grant
First Claim
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1. A state detection device for detecting an operating state of a high-frequency heating apparatus including a magnetron for generating microwave, comprising:

  • an anode current input portion which inputs a detected anode current of the magnetron, anda determination portion which reads the anode current inputted by the anode current input portion and determines the operating state of the high-frequency heating apparatus based on the anode current, whereinthe determination portion receives an output control signal for controlling an output of the magnetron and changes a threshold value for determining the state in accordance with a value of the output control signal.

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