发明名称 |
HIGH-FREQUENCY HEATING DEVICE |
摘要 |
<p>To attain a more reliable prevention of an electric shock by checking whether the earth states for two circuit boards are good. There is detected a voltage generated at an anode current sensing resistor 20 inserted into a path where the anode current of a magnetron 8 flows and a signal is transmitted to a microcomputer 27. The microcomputer 27 uses a selector switch 28 to determine the earth states for an inverter circuit board and a control panel circuit board before operation of a device. In case either one or both of the circuit boards are in a floating state, operation of a high-frequency heating device is inhibited. Otherwise, operation of the high-frequency heating device is permitted.</p> |
申请公布号 |
EP1976338(B1) |
申请公布日期 |
2015.11.11 |
申请号 |
EP20070706453 |
申请日期 |
2007.01.09 |
申请人 |
PANASONIC CORPORATION |
发明人 |
SHIROKAWA, NOBUO;SAKAI, SHINICHI;MORIYA, HIDEAKI;SUENAGA, HARUO;KINOSHITA, MANABU |
分类号 |
H05B6/68;H05B6/66 |
主分类号 |
H05B6/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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