| 摘要 |
<p>A control device for a heating installation incorporating mechanism for influencing the temperature of a heat carrier, the control device possessing temperature-dependent resistors for sensing the external temperature, the room temperature and the temperature of the heat carrier of a room or area to be heated. The invention contemplates the provision of at least one voltage divider embodying an adjustable resistor and the temperature-dependent resistors which are connected in parallel to one another. Two charging capacitors each having associated therewith a charging resistor are also provided, one charging capacitor being electrically coupled with that partial voltage of the voltage divider which increases during increase of at least one of the aforementioned temperatures, and the other charging capacitor being electrically coupled with that partial voltage of the voltage divider which increases during decrease of at least one of the aforementioned temperatures. There is also associated with each charging capacitor a respective pulse generating device for producing a pulse when the charging voltage has reached a certain value and at which time the charging capacitor simultaneously discharges, this pulse being employed for controlling the aforesaid mechanism for influencing the temperature of the heat carrier.</p> |
