Constant-voltage digital adjustable load circuit for ultrasonic power supply and working method of constant-voltage digital adjustable load circuit
By introducing a constant voltage digital adjustable load circuit into the ultrasonic power supply, the problems of unstable output voltage, large volume and high cost are solved, and linear adjustable voltage and improved power supply stability are achieved.
CN120566918AActive Publication Date: 2025-08-29GUANGZHOU RUIHENG ZHITONG ELECTRONIC CO LTD
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Patent Information
- Application Number
- CN202510950817.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2045-07-10
AI Technical Summary
Technical Problem
The existing ultrasonic power load circuits have problems such as unstable output voltage, large volume, high assembly difficulty and high cost.
Method used
The constant voltage digital adjustable load circuit is adopted, including control signal processing circuit, subtraction circuit, voltage control circuit and rectification circuit. The alternating current is converted into DC voltage through a transformer, and the operational amplifier and MOS tube voltage regulation circuit are used to achieve a linear adjustable constant voltage output of 0 to 100V.
Benefits of technology
The linear adjustable output voltage is achieved, reducing the volume and cost of the load circuit, and improving the stability and practicality of the power supply.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a constant-voltage digital adjustable load circuit for an ultrasonic power supply and a working method of the constant-voltage digital adjustable load circuit, the constant-voltage digital adjustable load circuit comprises a control signal processing circuit, a subtraction circuit and a voltage control circuit which are connected in sequence, and the voltage control circuit is further connected with a rectifying circuit and an overcurrent protection circuit. The input end of the rectifying circuit is connected with a transformer; and the voltage control circuit is used for receiving an output signal of the subtraction circuit and the direct-current voltage output by the rectifying circuit, controlling the primary voltage of the ultrasonic circuit to be 0-100V linear adjustable constant voltage, and outputting the direct-current voltage to the ultrasonic circuit. According to the invention, a multi-path output transformer is simplified into a single-path output transformer, and a multi-path relay required for voltage switching is removed, so that the volume of the ultrasonic power supply is reduced, the working stability is improved, the production cost is reduced, the linearly adjustable function of the output voltage is realized, the power supply function becomes stronger and more stable, and the power supply is more convenient to use. And the practicability of the power supply is greatly improved.
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