| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a temperature detecting apparatus capable of preventing incorrect output of a temperature signal in switching operation of a semiconductor switching element. <P>SOLUTION: This temperature detecting apparatus comprises a temperature detecting diode that is formed on the same chip as the semiconductor switching element and has a predetermined voltage characteristic to temperature fluctuation, and a constant current circuit for supplying current to an anode of the temperature detecting diode. The temperature detecting apparatus outputs, as a temperature signal, the anode potential of the temperature detecting diode. The temperature detecting apparatus has an anode potential keeping means for keeping, as a temperature signal, the anode potential of the temperature detecting diode in starting the switching operation of the semiconductor switching element. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
