| 摘要 |
PURPOSE:To reduce an occupied area by providing a switching means which turns on and off hourly so that the inclination of an output of a temperature detecting circuit and the adjustment of the intercept of a temperature are divided hourly and executed by the same presettable counter. CONSTITUTION:A temperature measuring circuit is constituted with external setting means 101, 102, changeover switches 103, 104 and 105, a presettable frequency dividing circuit 106, an NOR gate 107, an AND gate 108, and the temperature detecting circuit 109. In this state, in case of adjusting an inclination to the temperature of the output of the temperature detecting circuit 109, it is executed with a presettable frequency dividing circuit 108 by connecting the switches 103-105 to the position of (a), and subsequently, by connecting the switches 103-105 to the position of (b), and how many outputs of the temperature detecting circuit 109 are incorporated in a pulse width in a prescribed time after the time when '0' is detected is counted. In this way, since the adjustment can be executed by only one presettable frequency divider 106, the occupied area can be reduced. |
