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Resonance circuit control method, controller and resonance circuit

A resonant circuit and control method technology, applied in the controller and resonant circuit, the control field of resonant circuit, can solve the problem that the output accuracy of the resonant circuit cannot meet the requirements, and achieve the effect of improving stability, ensuring output accuracy and ensuring normal operation.

Pending Publication Date: 2022-05-31
ZHANGZHOU KEHUA ELECTRIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method for controlling a resonant circuit, a controller, and a resonant circuit to solve the problem that the output accuracy of the resonant circuit cannot meet the requirements when the resonant circuit is controlled by hiccups

Method used

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  • Resonance circuit control method, controller and resonance circuit
  • Resonance circuit control method, controller and resonance circuit
  • Resonance circuit control method, controller and resonance circuit

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Embodiment Construction

[0033] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are set forth in order to provide a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following descriptions will be given through specific embodiments in conjunction with the accompanying drawings.

[0035] see figure 1 , which shows a schematic diagram of the control loop of an existing resonant circuit. like figure 1 As shown, Io is the ou...

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Abstract

The invention provides a control method of a resonance circuit, a controller and the resonance circuit. The method comprises the following steps: acquiring a preset given value and an acquisition value of a target electrical parameter of a resonance circuit, and determining an evaluation value of the target electrical parameter according to the acquisition value; the evaluation value is used for determining the control precision of the target electrical parameter according to a preset given value; determining a final given value of the target electrical parameter according to a preset given value and the evaluation value; and determining the control quantity of the target electrical parameter by taking the final given value as input and the acquired value as feedback, and controlling the resonance circuit according to the control quantity so as to enable the acquired value to be the same as the preset given value. The stability of the resonance circuit can be improved.

Description

technical field [0001] The present invention relates to the technical field of resonant circuits, in particular to a control method, a controller and a resonant circuit of a resonant circuit. Background technique [0002] As a common resonant conversion circuit, the resonant circuit is suitable for the design of high frequency and high power density, and is used in many power supply equipment. [0003] The resonant circuit usually uses Pulse Frequency Modulation (PFM) to control the output, which has the characteristics of the higher the frequency, the lower the gain. When the output load is light, the required frequency will be very high. Since the frequency of the power tube cannot be set too high, most of them will minimize the minimum gain by hiccupping. However, using the hiccup method to control the resonant circuit will cause the output precision of the resonant circuit to fail to meet the requirements. SUMMARY OF THE INVENTION [0004] Embodiments of the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00
CPCH02M1/00Y02B70/10
Inventor 邱雄詹世淋钱贺平牛兴卓孙宗昌
Owner ZHANGZHOU KEHUA ELECTRIC TECH CO LTD
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