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Ultrasonic skin therapeutic apparatus

A skin treatment and ultrasonic technology, applied in the field of skin treatment instruments, can solve problems such as frequency upper limit locking, and achieve the effect of fully discharge and reliable unlocking.

Active Publication Date: 2021-07-09
武汉光燚激光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention proposes an ultrasonic skin treatment instrument to solve the problem of frequency upper limit locking when the traditional ultrasonic skin treatment instrument tracks the resonant frequency of the transducer

Method used

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0028] Such as figure 1 As shown, the ultrasonic skin therapeutic apparatus of the present embodiment includes a rectifier, a step-down device, a driver, a full-bridge inverter, a transformer, an impedance matching device, a transducer, a current sampler, a phase-locked loop, a low-pass filter, a two-way Analog switches, deadlock detectors, voltage samplers, controllers, and pulse width modulators.

[0029] The external AC input is connected to th...

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Abstract

The invention provides an ultrasonic skin therapeutic apparatus which comprises a rectifier, a step-down transformer, a driver, a full-bridge inverter, a transformer, an impedance matcher, a transducer, a current sampler, a phase-locked loop, a low-pass filter, a bidirectional analog switch and a deadlock detector. The deadlock detector compares the voltage across two ends of a filter capacitor in the low-pass filter with the set reference voltage, outputs a high level to turn on the bidirectional analog switch when the voltage across two ends of the filter capacitor in the low-pass filter is higher than the reference voltage, and the filter capacitor releases the stored electric energy; the control end voltage of the voltage-controlled oscillator is reduced to zero, the output frequency of the voltage-controlled oscillator is reset to the lower limit frequency, unlocking is achieved, and the problem that the upper limit frequency of a traditional phase-locked loop is locked is solved.

Description

technical field [0001] The invention relates to the technical field of skin treatment instruments, in particular to an ultrasonic skin treatment instrument. Background technique [0002] Ultrasonic skin therapy instrument can generate deep penetrating ultrasonic waves through high-frequency oscillations of one million times per second. After the ultrasonic waves act on the human body, they will be absorbed by the body, and the sound energy will be converted into heat energy. Micro-massage promotes the blood circulation of human capillaries, accelerates metabolism, promotes the absorption of nutrients, improves the body's defense ability, activates skin cells, and resists the reproduction of germs. The ultrasonic skin therapy instrument requires the transducer to work near the resonance point of the vibration system, but the frequency of the vibration system is not constant, and changes in working conditions, such as operating temperature, load changes, and mechanical wear of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M37/00A61N7/02
CPCA61M37/0092A61N7/02A61M2037/0007
Inventor 陈翔
Owner 武汉光燚激光科技有限公司
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