High-voltage input step-down circuit

The invention discloses a high-voltage input step-down circuit. The circuit comprises at least one half-bridge circuit module, a driving control module and an energy storage inductor module, each half-bridge circuit module comprises a charging switch tube and a follow current switch tube; when the d...

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Bibliographische Detailangaben
Hauptverfasser:	WU CHANGHUA, XIAO PING'AN
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 invention discloses a high-voltage input step-down circuit. The circuit comprises at least one half-bridge circuit module, a driving control module and an energy storage inductor module, each half-bridge circuit module comprises a charging switch tube and a follow current switch tube; when the driving control module drives each charging switch tube to be switched on and the follow current switch tube to be switched off, the power supply voltage output end supplies power, the voltage at the two ends of the follow current switch tube is equal to the input voltage, and the current flowing through the energy storage inductance module rises according to an index curve. Electric energy is converted into magnetic energy to be stored, so that low-voltage output is realized; when the driving control module drives each charging switch tube to be switched off and the follow current switch tube to be switched on, the energy storage inductance module converts magnetic energy into electric energy for discharging, the f