Digital pfc acquisition control system and method based on dsp
A control method and technology of a control system, which are applied in the field of digital PFC acquisition control system based on DSP, can solve the problems of low conversion efficiency, easy aging of PFC circuit components, backward control method, etc., and achieve improved service life, rapid conversion and high efficiency. , The effect of simplifying circuit design
Active Publication Date: 2019-05-14
山东全球通网络科技有限公司
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Problems solved by technology
[0004] According to the deficiencies in the prior art above, the technical problem to be solved by the present invention is to propose a digital PFC acquisition control system and method based on DSP, which realizes the full digital processing of the acquisition control of the PFC circuit through the DSP chip, greatly simplifying the PFC circuit The design solves the problems of easy aging of PFC circuit components, outdated control methods, and low conversion efficiency. It has the advantages of full digital processing, simplified PFC circuit design, and high conversion efficiency. It improves the service life and greatly reduces costs, and is suitable for mass production.
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[0014] Referring to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention include the shape, structure, mutual position and connection relationship of each part, the function and working principle of each part, and the manufacturing process of the various components involved. And the method of operation and use, etc., are described in further detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.
[0015] A digital PFC acquisition and control system based on DSP, such as figure 1 As shown, the digital PFC acquisition and control system is connected between the output end of the rectification and filtering circuit of the PFC circuit and the main switching tube. The electric voltage is input to the rectifier bridge, passes through the filter boost circuit, the main switch tube, the rectifier filt...
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The invention discloses a DSP-based digital PFC acquisition control system and method and belongs to power supply technical field. The DSP-based digital PFC acquisition control system comprises a signal acquiring unit, an amplifying unit, a DSP control unit, and a driving unit. The signal acquiring unit is connected with the output end of a PFC circuit and is used for acquiring the output signal of the PFC circuit. The signal acquiring unit is connected with the amplifying unit and is used for filtering and amplifying an acquired signal. A filtering and amplifying unit is connected with the DSP control unit. The DSP control unit is connected with the signal acquiring unit and the driving unit. The driving unit is connected with the main switch tube of the PFC circuit and controls the on-off state of the main switch tube according to an instruction of the DSP control unit. The DSP-based digital PFC acquisition control system and method solve problems that elements of the PFC circuit are liable to aging and a control method is out of date and low in conversion efficiency, have advantages of full digital processing, simplified PFC circuit design, and high conversion efficiency, prolong a service life, greatly reduce cost, and are suitable for batch production.
Description
technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to a digital PFC acquisition control system and method based on DSP. Background technique [0002] The full name of PFC in English is "Power Factor Correction", which means "power factor correction". Power factor refers to the relationship between effective power and total power consumption (apparent power), that is, effective power divided by total power consumption Quantity (apparent power) ratio. Basically, the power factor can measure the degree to which electricity is effectively utilized. When the value of the power factor is larger, it means that the power utilization rate is higher. Power factor is a parameter used to measure the power efficiency of electrical equipment, and low power factor represents low power efficiency. The technology to improve the power factor of electrical equipment is called power factor correction. [0003] PFC circuits on the ...
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IPC IPC(8): H02M1/42
CPCY02B70/10Y02P80/10
Inventor 丁绪星王宸黄薛龙王兵兵崔婷玉
Owner 山东全球通网络科技有限公司