Voltage reduction loop for elevator maintenance device

The utility model relates to the technical field of electrical systems, in particular to a step-down loop for an elevator maintenance device, which comprises a first triode, the collector electrode of the first triode is connected with an input voltage, and the emitter electrode of the first triode...

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Bibliographische Detailangaben
Hauptverfasser:	XIAO RONGBO, ZHONG LIYUAN, LU JUNCHAO, DAI TANGBIAO, SHI JINGQING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ELEVATORS EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS ESCALATORS OR MOVING WALKWAYS GENERATION HAULING HOISTING LIFTING PERFORMING OPERATIONS TRANSPORTING
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Beschreibung
Zusammenfassung:	The utility model relates to the technical field of electrical systems, in particular to a step-down loop for an elevator maintenance device, which comprises a first triode, the collector electrode of the first triode is connected with an input voltage, and the emitter electrode of the first triode is connected with the power supply voltage input end of a relay; one end of the resistor part is connected with an input voltage end, and the other end of the resistor part is connected with the base electrode of the first triode; one end of the voltage stabilizing part is connected with the base electrode of the first triode, and the other end of the voltage stabilizing part is connected with a grounding end; the collector of the second triode is connected with the collector of the first triode, and the base of the second triode is connected with the base of the first triode; according to the utility model, the voltage at the two ends of the relay is reduced, so that the relay with lower specification requirements