High-voltage power supply circuit and high-voltage power supply device

The utility model discloses a high-voltage power supply circuit and a high-voltage power supply device. In the circuit, the non-inverting input end of a first operational amplifier is grounded, the inverting input end of the first operational amplifier is respectively connected with the output ends...

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Bibliographische Detailangaben
Hauptverfasser:	QIAO HUI, MENG DEMING, NAN HAO, DUAN GUANGCHANG, LI QIANG
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 high-voltage power supply circuit and a high-voltage power supply device. In the circuit, the non-inverting input end of a first operational amplifier is grounded, the inverting input end of the first operational amplifier is respectively connected with the output ends of a signal generator and a second operational amplifier, and the output end of the first operational amplifier is connected with the grid of a third MOS tube; the drain electrode of the third MOS tube is connected with the source electrode of the first MOS tube; the grid electrode of the first MOS tube is connected with the input voltage end and the second output end of the PWM control chip, and the drain electrode of the first MOS tube is connected with the drain electrode of the second MOS tube; the grid electrode of the second MOS tube is connected with the first output end of the PWM control chip and grounded, and the drain electrode of the second MOS tube is connected with the third end of the transformer and