Power circuit switching signal frequency shaking control method, device and readable storage medium

A technology of switching signals and power circuits, applied in the direction of output power conversion devices, electrical components, etc., can solve problems such as electromagnetic interference of power switching circuits, and achieve the effect of improving electromagnetic compatibility

Active Publication Date: 2020-02-11
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a power circuit switching signal frequency shaking control method, aiming at solving the electromagnetic interference problems caused by various power switching circuits

Method used

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  • Power circuit switching signal frequency shaking control method, device and readable storage medium
  • Power circuit switching signal frequency shaking control method, device and readable storage medium
  • Power circuit switching signal frequency shaking control method, device and readable storage medium

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Embodiment Construction

[0040] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0041] Such as figure 1 as shown, figure 1 It is a schematic diagram of the terminal structure of the hardware operating environment involved in the solution of the embodiment of the present invention.

[0042] The terminal in this embodiment of the present invention may be a smart home appliance, or a mobile terminal device with a display function such as a smart phone, a tablet computer, an e-book reader, or a portable computer.

[0043] Such as figure 1 As shown, the terminal may include: a processor 1001 , such as a CPU, a network interface 1004 , a user interface 1003 , a memory 1005 , and a communication bus 1002 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as ...

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PUM

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Abstract

The invention discloses a frequency jittering control method and device for power circuit switch signals and a readable storage medium. The method includes: determining the signal features of a power switch circuit according to the type of power switch circuit; acquiring the frequency jittering amplitude and manner corresponding to the power switch circuit according to the signal features of the power switch circuit; setting the frequency jittering cycle of the switch of the power switch circuit according to the cycle of a selected reference signal and the frequency jittering manner; controlling the switch to be in the frequency jittering amplitude, and using the frequency jittering manner and the frequency jittering cycle to perform periodical frequency jittering. The method has the advantages that frequency jittering control is performed on the switch of the switch circuit, the energy of the switch signals is dispersed to the whole frequency band in the frequency jittering range, the total energy of the switch signals is unchanged, interference amplitude generated by single frequency in the frequency jittering range is lowered, the electromagnetic compatibility of the switch circuit is improved, and extra material costs are avoided.

Description

technical field [0001] The invention relates to the field of control of switching circuits, in particular to a method, device and readable storage medium for frequency shaking control of switching signals of power circuits. Background technique [0002] Various electronic and electrical equipment and devices generally contain digital clock circuits or various power switching circuits in order to improve power conversion efficiency, improve power factor and improve current harmonics. These clock and switching circuits all use fixed operating frequencies, and their pulse signals contain rich harmonic components, and a large number of harmonic components propagate outward through transmission paths and electromagnetic fields, thus causing serious electromagnetic interference problems to electronic and electrical equipment and devices . Therefore, how to reduce electromagnetic interference has become an important consideration in the design of such products, and it is also one ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/44
CPCH02M1/44
Inventor 孙金田
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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