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Frequency conversion control method, frequency conversion control device and ion generator

A frequency conversion control and frequency technology, which is used in control/regulation systems, output power conversion devices, instruments, etc., and can solve problems such as electromagnetic interference, burnout, and breakdown of low-resistance components of variable voltage control circuits.

Inactive Publication Date: 2017-11-24
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the related art, EMI usually occurs in the voltage transformation control circuit, and the peak pulse or high-order harmonics caused by the change of the voltage amplitude are difficult to be filtered by the voltage transformation control circuit, thus causing serious electromagnetic interference, which may cause the voltage transformation The low-resistance components in the control circuit are broken down or burned out

Method used

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  • Frequency conversion control method, frequency conversion control device and ion generator
  • Frequency conversion control method, frequency conversion control device and ion generator
  • Frequency conversion control method, frequency conversion control device and ion generator

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Embodiment

[0072] Figure 4 A schematic diagram of the topology of an ion generator according to an embodiment of the present invention is shown.

[0073] Such as Figure 4 As shown, the topology of the ion generator according to an embodiment of the present invention includes: "switching power supply", "step-up transformer", "voltage doubler rectifier module", "MCU" and "MOS tube" (Metal Oxide Semiconductor , Metal Oxide Semiconductor), among them, the mains signal AC (transmitted through the L live wire and the N neutral wire) is 220V, 50Hz, after being filtered and rectified by the "switching power supply", it becomes a DC low voltage, and the DC low voltage is transmitted to the primary coil of the step-up transformer , the primary coil of the step-up transformer is connected in series with the "MOS tube" (a type of thyristor switch), and the "MCU" sends a PWM signal to the "MOS tube" to drive the "MOS tube" to turn on and off quickly, and the duty cycle of the PWM signal Compared ...

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Abstract

The invention provides a frequency conversion control method, a frequency conversion control device and an ion generator. The frequency conversion control method comprises: a jitter frequency signal is generated according to a preset triangular wave pulse corresponding to a fundamental frequency; and on the basis of the frequency of the jitter frequency signal, a pulse signal is generated and the generated signal is transmitted to a silicon-controlled switch. Therefore, the electromagnetic interference of the ion generator is reduced and reliability of the ion generator is improved.

Description

technical field [0001] The present invention relates to the technical field of household appliances, in particular to a frequency conversion control method, a frequency conversion control device and an ion generator. Background technique [0002] EMI (Electro Magnetic Interference, Electromagnetic Interference) is divided into ConductedEMI and Radiated EMI. Among them, Conducted Electromagnetic Interference is the coupling of a signal on one electrical network to another electrical network through a conductive medium. Radiated interference refers to the coupling (interference) of its signal to another electrical network through the electromagnetic radiation field. [0003] In the related art, EMI usually occurs in the voltage transformation control circuit, and the peak pulse or high-order harmonics caused by the change of the voltage amplitude are difficult to be filtered by the voltage transformation control circuit, thus causing serious electromagnetic interference, which...

Claims

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Application Information

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IPC IPC(8): H02M1/06H02M3/335B01D49/00
CPCH02M1/06B01D49/00H02M3/33523
Inventor 麦智炜王碧滢阮兆忠
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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