Slow-start switching circuit of direct-current power supply

The utility model relates to the technical field of switching circuits, in particular to a slow start switching circuit of a direct-current power supply. A source electrode of the MOS tube Q1 is connected with a direct current input power supply, one end of the resistor R1 and one end of the capacit...

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Bibliographische Detailangaben
Hauptverfasser:	ZENG HUAXIONG, JIANG YUZHEN, WANG XUEYAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PULSE TECHNIQUE SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The utility model relates to the technical field of switching circuits, in particular to a slow start switching circuit of a direct-current power supply. A source electrode of the MOS tube Q1 is connected with a direct current input power supply, one end of the resistor R1 and one end of the capacitor C1, a drain electrode of the MOS tube Q1 is connected with a direct current output power supply, a grid electrode of the MOS tube Q1 is connected with the other end of the capacitor C1, one end of the resistor R3 and a negative electrode of the diode D1, and the other end of the resistor R1 is connected with one end of the resistor R2, the other end of the resistor R3 and a positive electrode of the diode D1. The other end of the resistor R2 is connected with the drain electrode of the MOS tube Q2, the grid electrode of the MOS tube Q2 is connected with a switch control signal, and the source electrode of the MOS tube Q2 is grounded. According to the circuit, the current rises slowly during startup, the starting