Patent ID: 11955903
Assignee: SHENZHEN DOSO TECHNOLOGY LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A rectification and boost-buck control system for an alternating current, comprising: a processor; a commutation detection circuit connected between the processor and the alternating current and configured to detect commutation signals; and a rectifier circuit comprising an upper bridge arm circuit and a lower bridge arm circuit respectively connected to corresponding phases of the alternating current, the upper bridge arm circuit comprising a chopper circuit which comprises an upper bridge element connected to the corresponding phase of the alternating current, the lower bridge arm circuit comprising a switch circuit connected between the processor and the chopper circuit, the switch circuit comprising a lower bridge element connected the upper bridge element; wherein based on the communication signals and present output current and/or current rectified voltage, the processor is capable of outputting a conduction angle control signal to the chopper circuit and output a switch control signal to the switch circuit to adjust on-off time of the chopper circuit and the switch circuit to thereby adjust the present output current and/or the current rectified voltage, wherein the alternating current is a three-phase alternating current, the chopper circuit comprises a first silicon controlled rectifier, a second silicon controlled rectifier and a third silicon controlled rectifier respectively connected to three phases of the alternating current; the switch circuit comprises a first switch, a second switch and a third switch respectively connected to the first silicon controlled rectifier, the second silicon controlled rectifier and the third silicon controlled rectifier; and the processor is connected to the first switch, the second switch and the third switch respectively via a switch driver circuit.