Buck-boost control circuit and free oxygen generator

The utility model discloses a buck-boost control circuit and a free oxygen generator, the buck-boost control circuit comprises a voltage sampling unit, a current sampling unit, a main control unit and a buck-boost driving unit, the voltage sampling unit samples the voltage output to a load; the curr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHOU XIAOPING, XU ZHIYI, ZHUANG JIEXIANG
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 buck-boost control circuit and a free oxygen generator, the buck-boost control circuit comprises a voltage sampling unit, a current sampling unit, a main control unit and a buck-boost driving unit, the voltage sampling unit samples the voltage output to a load; the current sampling unit is used for sampling the current output to the load; the first sampling end of the main control unit is connected with the output end of the voltage sampling unit, the second sampling end of the main control unit is connected with the output end of the current sampling unit, and the main control unit outputs corresponding PWM control signals according to the sampling voltage and the sampling current; the control end of the boost-buck driving unit is connected with the output end of the main control unit, and the boost-buck driving unit realizes boost or buck control according to a PWM control signal output by the main control unit so as to output corresponding output voltage and current; therefore