| 摘要 |
A status detection device includes a heater(70), a first power line (11) for supplying power to one end of the heater, a second power line (12) for supplying power to the other end of the heater, a switch portion (13) disposed in the first power line, an overheat protection portion (14) for disconnecting the second power line when temperature exceeds a predetermined temperature, and a zero cross signal generation portion (2) which outputs a zero cross signal in accordance with a waveform of an AC power supply (APC), and outputs zero cross signals having different output values in a case where voltage of the first power line is higher than voltage of the second power line and in a case where the voltage of the second power line is higher than that of the first power line. |
