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Recent content by BobGrean

  1. BobGrean

    Rice cooker tripping breaker when switched on (Zojirushi NP-HCC10)

    I had to look up the difference between impedance and resistance Bluejets, I now understand that resistance is a more precise term for purely resistive elements, and can only be used in ac circuits. Thanks I will try to keep this in mind in the future. Please replace the instances of impedance...
  2. BobGrean

    Rice cooker tripping breaker when switched on (Zojirushi NP-HCC10)

    I pulled the IGBT, and it was indeed shorted. I should have a replacement in a few weeks. Ramussons, I decided to go with an identical IGBT, thanks for the input though. I will also look into the gate drive if the issues persists after replacing the IGBT. Regarding the induction coil, the...
  3. BobGrean

    Rice cooker tripping breaker when switched on (Zojirushi NP-HCC10)

    Thanks again Bluejets, ramussons and Delta Prime. I'm at a bit of a loss. The bridge rectifier came in the mail and I installed it with additional thermal paste on the heat sink. I wired it up as y'all recommended with an incandescent bulb in series. Now when I put line voltage to it the...
  4. BobGrean

    Rice cooker tripping breaker when switched on (Zojirushi NP-HCC10)

    Thanks Bluejets! Either you are a genius, or I am a idiot. In this case I would say both. It has been a couple of years since I took a circuit analysis class. Here is a picture of the positive out. And here is a picture of testing the bridge rectifier (DB) in circuit. I will remove it and test...
  5. BobGrean

    Rice cooker tripping breaker when switched on (Zojirushi NP-HCC10)

    I have a induction rice cooker that trips the breaker as soon as it's plugged in. The internal 15A fuse is still intact. I disconnected the inductive loop and the unit still trips out. I have narrowed it down to the inductive power supply board pictured below. When this board is connected and...
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