PTC heating circuit

The utility model provides a PTC (Positive Temperature Coefficient) heating circuit, which is characterized in that a first end of a first-stage switching circuit is connected with an L-phase line of an external AC (Alternating Current) power supply, a second end of the first-stage switching circuit...

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Bibliographische Detailangaben
Hauptverfasser:	YUAN PANFU, WU WEI, SHAO SHIXIAO, PAN XIAOCHAI, LI ZEMING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DOMESTIC HOT-WATER SUPPLY SYSTEMS DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELEMENTS OR COMPONENTS THEREFOR HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The utility model provides a PTC (Positive Temperature Coefficient) heating circuit, which is characterized in that a first end of a first-stage switching circuit is connected with an L-phase line of an external AC (Alternating Current) power supply, a second end of the first-stage switching circuit is connected with a first end of a second-stage switching circuit, and a third end of the first-stage switching circuit is connected with an external DC (Direct Current) power supply; the fourth end of the first-stage switching circuit is connected with an external controller, and the first-stage switching circuit comprises a relay; the second end of the second-stage switching circuit is connected with the first end of the PTC heater, the third end of the second-stage switching circuit is connected with an external direct-current power supply, and the fourth end of the second-stage switching circuit is connected with an external controller; and the second end of the PTC heater is connected with the N-phase line of