Skin therapeutic apparatus for transdermal dispersion

Abstract

The invention provides a skin therapeutic apparatus for transdermal dispersion. The skin therapeutic apparatus comprises a controller, a signal generator, a driver, a power amplifier, an impedance matcher, a transducer, a current sampling circuit, a voltage sampling circuit, a current zero-crossing comparison circuit, a voltage zero-crossing comparison circuit, a D trigger and an AND gate. Sampling voltage and sampling current signals of transducer input signals are set into square wave signals, the square wave signals are sent to the D trigger and the AND gate, a signal reflecting the voltage and current lead or lag relation and a pulse width signal reflecting the phase difference are obtained, and according to the duty ratio of the pulse width signal and the voltage and current lead or lag relation, the frequency increment of the signal generator is generated through fuzzy operation, high-precision frequency tracking control is achieved, the calculation amount is reduced, the control period is shortened, and the frequency tracking precision is improved.

Description

technical field [0001] The invention relates to the technical field of skin treatment instruments, in particular to a skin treatment instrument for transdermal diffusion. Background technique [0002] Transdermal diffusion skin therapy instrument adopts ion atomization technology, uses ultrasonic resonance to change the molecular structure, releases a large number of ions to increase the oxygen content of epidermal living cells for sensitive skin, and promotes the regeneration of the epidermis. At the same time, the combination of ions and atomization can be more Combine it with other nutritional media to quickly relieve skin allergies, deeply moisturize and replenish fat, and repair the skin's barrier function. Among them, the therapeutic apparatus needs to provide alternating electric energy consistent with the natural frequency of the transducer through the ultrasonic generator, so as to excite the transducer to generate resonance and radiate ultrasonic waves outward. In...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention proposes a transdermal diffusion technique skin therapy instrument to solve the problem that the traditional transdermal diffusion technique skin therapy instrument can only detect the lead or lag relationship of the transducer input current and voltage, resulting in low frequency tracking accuracy

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