Fire-proof timing controller
The utility model relates to a fire-proof timing controller, which is designed for preventing electric appliance fire. The commercial power is output by connecting with a bridge rectifier circuit through a switch, and then is connected with one end of a load resistor; the other end of the load resis...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The utility model relates to a fire-proof timing controller, which is designed for preventing electric appliance fire. The commercial power is output by connecting with a bridge rectifier circuit through a switch, and then is connected with one end of a load resistor; the other end of the load resistor is connected with an SCR to form a loop; the control end of the SCR is connected with a switch provided with conduct voltage; the switch is in linkage with a switch at the reset terminal of an integrated block of a time-base circuit, and is connected with one end of the load resistor through a diode corresponding to the output end of the integrated block of the time-base circuit. The utility model has the advantages of simple circuit and multiple functions, and can be widely used on electric blankets. |
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