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Control circuit, control method, circuit board, air conditioner and storage medium

A technology for controlling circuits and controllers, applied in the fields of circuit boards, air conditioners and computer-readable storage media, control circuits, and control methods, can solve problems such as difficult rectifier control, overvoltage failure of switching tubes, and inability to perform synchronous rectification. Achieve the effect of small voltage stress, reduce driving loss, and prevent overvoltage failure

Pending Publication Date: 2022-04-12
CHONGQING MIDEA REFRIGERATION EQUIP CO LTD +1
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Problems solved by technology

[0002] At present, for the rectifier used in the three-phase power supply, there are often many different topological forms and many different wave-emitting methods. However, for the existing topologies and wave-emitting methods, there are often different degrees of harmonic Wave influence, high driving power, low power factor, overvoltage failure of switching tubes, failure of synchronous rectification, etc., making it difficult to achieve better control of the rectifier

Method used

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  • Control circuit, control method, circuit board, air conditioner and storage medium
  • Control circuit, control method, circuit board, air conditioner and storage medium
  • Control circuit, control method, circuit board, air conditioner and storage medium

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Embodiment Construction

[0057] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0058] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in ...

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Abstract

The invention provides a control circuit, a control method, a circuit board, an air conditioner and a storage medium, the control circuit comprises a Vienna circuit and a controller, the Vienna circuit is provided with three alternating current input ends and three groups of bidirectional switches, and the alternating current input ends and the bidirectional switches are in one-to-one correspondence; each group of bidirectional switches comprises a first switching device and a second switching device which are connected in series; the controller is connected to the first switching device and the second switching device; the controller is used for acquiring an electric signal of each alternating current input end and controlling the first switching device and the second switching device in the bidirectional switch corresponding to the alternating current input end of which the waveform of the electric signal is in a positive half cycle to be normally opened or normally closed; and controlling the second switching device in the bidirectional switch corresponding to the alternating current input end of which the waveform of the electric signal is in the negative half cycle to alternately switch and the first switching device to be normally opened or normally closed. According to the invention, the rectification effect can be better controlled and realized, and the normal operation of electric appliances is ensured.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a control circuit, a control method, a circuit board, an air conditioner and a computer-readable storage medium. Background technique [0002] At present, for the rectifier used in the three-phase power supply, there are often many different topological forms and many different wave-emitting methods. However, for the existing topologies and wave-emitting methods, there are often different degrees of harmonic Wave influence, high driving power, low power factor, overvoltage failure of switching tubes, failure of synchronous rectification, etc., making it difficult to achieve better control of the rectifier. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a control circuit, a control method, a circuit board, an air conditioner and a compu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/219H02M1/088H02M1/12F24F11/88
CPCY02B70/10
Inventor 杨建宁黄招彬赵鸣文先仕徐锦清
Owner CHONGQING MIDEA REFRIGERATION EQUIP CO LTD
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