Ultrasonic power supply and control method

Abstract

The invention provides an ultrasonic power supply and a control method. The power supply comprises a single-phase fully-controlled rectifying circuit module, a filtering voltage stabilizing circuit module, a power conversion circuit module and a high-frequency transformer which are connected in sequence. The power supply also comprises an inductance adjustable matching circuit module, a voltage control module, and an energy converter, a current sensor, a controller module, a DDS direct numerical frequency synthesizer and a drive circuit module which are connected in sequence; the high-frequency transformer is connected to the energy converter through the inductance adjustable matching circuit module; the drive circuit module is connected to the power conversion circuit module; and the controller module, the voltage control module and the single-phase fully-controlled rectifying circuit module are connected in sequence. Frequency tracking can be realized automatically and quickly, the specific power is constant, and resonance matching can be realized with various energy converters, so that energy is efficiently transmitted to the various energy converters, the energy utilization rate is higher, and the using range is wider.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic power supply, and in particular relates to an ultrasonic power supply capable of matching different transducers and a frequency control method thereof, which can be applied in the fields of ultrasonic compound processing, ultrasonic atomization, and the like. Background technique [0002] With the rapid development of industry, the application of ultrasonic technology is becoming more and more extensive, such as ultrasonic composite processing, ultrasonic cleaning, ultrasonic testing, ultrasonic atomization, medical B-ultrasound, etc. [0003] However, the matching performance of the traditional ultrasonic power supply is not good, it is difficult to achieve the desired effect, and the efficiency of ultrasonic energy transfer is low. The inductance in the oscillation circuit and matching circuit of the current ultrasonic power supply is a fixed value, the frequency is fixed or the range of freq...

AI Technical Summary

Problems solved by technology

[0003] However, the matching performance of the traditional ultrasonic power supply is not good, it is difficult to achieve the desired effect, and the efficiency of ultrasonic energy transfer is low

The inductance in the oscillation circuit and matching circuit of the current ultrasonic power supply is a fixed value, the frequency is fixed or the range of frequency variation is severely limited, and it can only be matched with one kind of transducer, and it cannot generate a variety of frequencies that match different transducers. , resulting in a serious waste of resources

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