Single-voltage switch state converting circuit

The utility model discloses a single-voltage switch state converting circuit. The input of a single power supply voltage is connected with a bridge rectifier consisting of D1 to D4 by a switch S and a false load capacitor C1; the rectified voltage is filtered by voltage-dividing resistors R1 and R2,...

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Bibliographische Detailangaben
Hauptverfasser:	LU ZHAODA, WU JIEXIA, LU ZHIYONG, GE BAOZHANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	The utility model discloses a single-voltage switch state converting circuit. The input of a single power supply voltage is connected with a bridge rectifier consisting of D1 to D4 by a switch S and a false load capacitor C1; the rectified voltage is filtered by voltage-dividing resistors R1 and R2, is subsequently connected in series with a voltage-stabilizing tube ZD1 and a photoelectric coupler U; the photoelectric coupler load R4 is connected with a low voltage Vcc; and low-level digital signals 0/1 are output by the photoelectric coupler load. The single-voltage switch state converting circuit has the advantages of effectively converting the on/off states of the power supply switch into direct-current low-voltage 0/1 digital control signals, and simultaneously realizing the aim of electric insulation (namely electric insulation between the output terminal and the input terminal) by the photoelectric coupler.