CN-121984447-A - Output efficiency control method, output efficiency control device and radio frequency power supply equipment

CN121984447ACN 121984447 ACN121984447 ACN 121984447ACN-121984447-A

Abstract

The application provides an output efficiency control method, an output efficiency control device and a radio frequency power supply device, wherein the output efficiency control method is applied to an output efficiency control device, the output efficiency control device is used for controlling the output efficiency of the radio frequency power amplifier device when the radio frequency power amplifier device outputs radio frequency electric energy, and comprises an adjustable impedance module, wherein the adjustable impedance module has an adjustable impedance value. The output efficiency control method comprises the steps of continuously obtaining the output efficiency of the radio frequency power amplifier device when the radio frequency power amplifier device outputs radio frequency electric energy at preset intervals. And determining whether the output efficiency obtained each time is the efficiency to be regulated or the target efficiency according to the preset efficiency and the preset threshold value. And when the output efficiency obtained at any time is determined to be the efficiency to be regulated, controlling and regulating the impedance value of the adjustable impedance module in the time period from the current output efficiency obtaining to the next output efficiency obtaining to be a target impedance value. The application can meet the output efficiency control requirement of the radio frequency electric energy.

Inventors

WANG SHUXIAO
Lin Jiongkang
CHEN YATI

Assignees

深圳市瀚强科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260123

Claims (10)

1. The output efficiency control method is applied to an output efficiency control device and is characterized in that the output efficiency control device is used for controlling the output efficiency of the radio frequency power amplifier device when outputting radio frequency electric energy, and comprises an adjustable impedance module, wherein the adjustable impedance module has an adjustable impedance value; the output efficiency control method comprises the following steps: Continuously acquiring the output efficiency of the radio frequency power amplifier device when outputting radio frequency electric energy at preset intervals; determining whether the output efficiency obtained each time is to-be-regulated efficiency or target efficiency according to the preset efficiency and a preset threshold value; and when the output efficiency obtained at any time is determined to be the efficiency to be regulated, controlling and regulating the impedance value of the adjustable impedance module in the time period from the current output efficiency obtaining to the next output efficiency obtaining to be a target impedance value.
2. The method for controlling output efficiency according to claim 1, wherein the determining whether the output efficiency obtained each time is the efficiency to be adjusted according to the preset efficiency and the preset threshold value includes: when the difference between the output efficiency obtained at the current time and the preset efficiency is greater than or equal to a preset threshold value, determining the output efficiency obtained at the current time as the efficiency to be regulated; And when the difference between the output efficiency acquired at the current time and the preset efficiency is smaller than a preset threshold value, determining the output efficiency acquired at the current time as the target efficiency.
3. The output efficiency control method according to claim 1, wherein after determining whether the output efficiency obtained each time is the efficiency to be adjusted or the target efficiency according to the preset efficiency and the preset threshold, the output efficiency control method further comprises: When the output efficiency obtained at any time is determined to be the target efficiency, the impedance value of the adjustable impedance module in the time period from the current time of obtaining the output efficiency to the next time of obtaining the output efficiency is kept to be the impedance value when the output efficiency is obtained at the current time.
4. The method for controlling output efficiency according to claim 1, wherein when determining that the output efficiency obtained at any one time is the efficiency to be adjusted, controlling and adjusting the impedance value of the adjustable impedance module in the period from the current time of obtaining the output efficiency to the next time of obtaining the output efficiency to be the target impedance value includes: When the output efficiency obtained at any time is determined to be the efficiency to be regulated, determining a target impedance value of the adjustable impedance module at least according to the output efficiency obtained at the current time; and controlling and adjusting the impedance value of the adjustable impedance module in the time period from the current output efficiency acquisition to the next output efficiency acquisition to be a target impedance value.
5. The method according to claim 4, wherein the rf power amplifier is configured to transmit rf power to a load, the adjustable impedance module includes a first capacitor, a first inductor, and a second capacitor, the first capacitor and the first inductor are sequentially connected between the rf power amplifier and the load, the second capacitor is connected to a connection point between the first inductor and the load, and capacitance values of the first capacitor and the second capacitor are adjustable; When determining that the output efficiency obtained at any time is the efficiency to be adjusted, determining a target impedance value of the adjustable impedance module at least according to the output efficiency obtained at the current time includes: When the output efficiency obtained at any time is determined to be the efficiency to be regulated, determining target capacitance values of the first capacitor and the second capacitor according to the output efficiency obtained at the current time and the preset efficiency, wherein the impedance value integrally represented by the inductance value of the first inductor, the target capacitance values of the first capacitor and the second capacitor is the target impedance value of the adjustable impedance module.
6. The output efficiency control method of claim 4, wherein the controlling and adjusting the impedance value of the adjustable impedance module in the period from the current time of obtaining the output efficiency to the next time of obtaining the output efficiency is a target impedance value, comprising: and simultaneously controlling and adjusting the capacitance values of the first capacitor and the second capacitor in the time period from the current acquisition of the output efficiency to the next acquisition of the output efficiency to be a target capacitance value, so that the impedance value of the adjustable impedance module in the time period from the current acquisition of the output efficiency to the next acquisition of the output efficiency is a target impedance value.
7. The output efficiency control method according to claim 4, wherein the control adjusts the adjustable impedance module before the impedance value in the period from the current time of obtaining the output efficiency to the next time of obtaining the output efficiency is the target impedance value, the output efficiency control method further comprising: when the output efficiency obtained at any time is determined to be the efficiency to be regulated, determining a target impedance value change rate of the adjustable impedance module at least according to the output efficiency obtained at the current time, the output efficiency obtained at the last time and a preset interval; the control and adjustment adjustable impedance module takes the impedance value in the time period from the current output efficiency acquisition to the next output efficiency acquisition as a target impedance value, and comprises the following steps: And controlling and adjusting the impedance value of the adjustable impedance module in the time period from the current acquisition of the output efficiency to the next acquisition of the output efficiency by using the target impedance value change rate as a target impedance value.
8. The output efficiency control device is characterized by being used for controlling the output efficiency of the radio frequency power amplifier device when outputting radio frequency electric energy, and comprises an adjustable impedance module and a control module; The adjustable impedance module has an adjustable impedance value; The control module is used for continuously acquiring the output efficiency of the radio frequency power amplifier device when the radio frequency power amplifier device outputs radio frequency electric energy at preset intervals, determining whether the output efficiency acquired each time is to-be-regulated efficiency or target efficiency according to preset efficiency and a preset threshold value, and controlling and regulating the impedance value of the adjustable impedance module to be the target impedance value in the time period from the current acquisition of the output efficiency to the next acquisition of the output efficiency when the output efficiency acquired any time is determined to be the to-be-regulated efficiency.
9. The output efficiency control apparatus of claim 8, wherein the rf power amplifier is configured to transmit rf power to a load, the adjustable impedance module includes a first capacitor, a first inductor, and a second capacitor, the first capacitor and the first inductor are sequentially connected between the rf power amplifier and the load, the second capacitor is connected to a connection point between the first inductor and the load, and capacitance values of the first capacitor and the second capacitor are adjustable.
10. A radio frequency power supply device, comprising: the radio frequency power amplifier is used for outputting radio frequency electric energy; The output efficiency control apparatus as claimed in any one of claims 8 to 9, for controlling the output efficiency of the radio frequency power amplifying apparatus when outputting radio frequency power.

Description

Output efficiency control method, output efficiency control device and radio frequency power supply equipment Technical Field The present application relates to the field of radio frequency technologies, and in particular, to an output efficiency control method, an output efficiency control device, and a radio frequency power supply device. Background Currently, with the application and popularization of radio frequency technology, radio frequency power supply devices are increasingly applied to various fields. In the application process of the radio frequency power supply equipment, along with the power change of the radio frequency electric energy and the application environment change of other circuits, the output efficiency of the radio frequency power supply equipment also changes, and the power fluctuation of the radio frequency electric energy is often larger, so that the output efficiency fluctuation of the radio frequency power supply equipment is larger, and the electric energy waste is caused, therefore, when the output efficiency of the radio frequency electric energy fluctuates, the output efficiency of the radio frequency power amplifier device when the radio frequency electric energy is output is controlled, so that the electric energy is saved, and the problem to be considered is solved. Disclosure of Invention The application provides an output efficiency control method, an output efficiency control device and radio frequency power equipment, which can control the output efficiency of a radio frequency power amplifier device when outputting radio frequency electric energy so as to save electric energy. In a first aspect, an output efficiency control method is provided, where the output efficiency control method is applied to an output efficiency control device, where the output efficiency control device is used to control output efficiency of a radio frequency power amplifier device when outputting radio frequency electric energy, and the output efficiency control device includes an adjustable impedance module, where the adjustable impedance module has an adjustable impedance value. The output efficiency control method comprises the step of continuously obtaining the output efficiency of the radio frequency power amplifier device when the radio frequency power amplifier device outputs radio frequency electric energy at preset intervals. And determining whether the output efficiency obtained each time is the efficiency to be regulated or the target efficiency according to the preset efficiency and the preset threshold value. And when the output efficiency obtained at any time is determined to be the efficiency to be regulated, controlling and regulating the impedance value of the adjustable impedance module in the time period from the current output efficiency obtaining to the next output efficiency obtaining to be a target impedance value. In one possible implementation manner, the determining whether the output efficiency obtained each time is the efficiency to be adjusted according to the preset efficiency and the preset threshold includes determining that the output efficiency obtained the current time is the efficiency to be adjusted when the difference between the output efficiency obtained the current time and the preset efficiency is greater than or equal to the preset threshold. And when the difference between the output efficiency acquired at the current time and the preset efficiency is smaller than a preset threshold value, determining the output efficiency acquired at the current time as the target efficiency. In one possible implementation manner, after determining whether the output efficiency obtained each time is the efficiency to be regulated or the target efficiency according to the preset efficiency and the preset threshold, the output efficiency control method further includes keeping the impedance value of the adjustable impedance module in the time period from the current obtaining of the output efficiency to the next obtaining of the output efficiency as the impedance value when the output efficiency is obtained the current time when the output efficiency obtained any time is determined to be the target efficiency. In one possible implementation manner, when the output efficiency obtained at any time is determined to be the efficiency to be regulated, the control and regulation of the impedance value of the adjustable impedance module in the period from the current time of obtaining the output efficiency to the next time of obtaining the output efficiency is performed as a target impedance value, which includes determining, when the output efficiency obtained at any time is determined to be the efficiency to be regulated, the target impedance value of the adjustable impedance module according to at least the output efficiency obtained at the current time. And controlling and adjusting the impedance value of the adjustable impedance module in the time period from the c