CN210813569U

CN210813569U - Ultrasonic cavitation treatment ultrasonic drive circuit

Info

Publication number: CN210813569U
Application number: CN201921143581.9U
Authority: CN
Inventors: 成辉; 李�浩; 黄河; 饶欣
Original assignee: Hunan Runze Medical Imaging Technology Co ltd
Current assignee: Hunan Runze Medical Imaging Technology Co ltd
Priority date: 2019-07-20
Filing date: 2019-07-20
Publication date: 2020-06-23
Anticipated expiration: 2029-07-20

Abstract

The utility model discloses an ultrasonic cavitation treatment ultrasonic drive circuit, produce circuit, half-bridge MOS drive circuit, switching relay K1 and resonant matching circuit including complementary drive signal, outside signal generator is connected to complementary drive signal production circuit's one end, complementary drive signal production circuit's the other end and half-bridge MOS drive circuit are connected, half-bridge MOS drive circuit is connected with resonant matching circuit through switching relay K1. The utility model has the characteristics of launch time is convenient adjustable, the acoustic pressure is convenient adjustable, but cavitation frequency dual-frenquency switches, launch efficiency is high, small, adopt the resonance to step up drive power supply voltage low safe and reliable.

Description

Ultrasonic cavitation treatment ultrasonic drive circuit

Technical Field

The utility model relates to an ultrasonic cavitation treatment technical field, more specifically say, in particular to ultrasonic cavitation treatment supersound drive circuit.

Background

The highest negative sound pressure of the cavitation therapeutic apparatus reaches 5MPa, the excitation voltage required by the ultrasonic transducer reaches about 1KV, and the ultrasonic transducer can be excited to generate ultrasonic sound pressure meeting the requirement. The power supply circuit has the defects of large volume, low efficiency, complex circuit and low reliability of power supply of a high-power and high-voltage power supply; the sound pressure regulation control is not accurate, and the dual-frequency switching of the cavitation frequency cannot be realized, so that the clinical requirement cannot be met. For this reason, improvements are necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ultrasonic cavitation treatment ultrasonic drive circuit to overcome the not enough of prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an ultrasonic cavitation treatment ultrasonic drive circuit, includes complementary drive signal generation circuit, half-bridge MOS drive circuit, switching relay K1 and resonant matching circuit, outside signal generator is connected to complementary drive signal generation circuit's one end, complementary drive signal generation circuit's the other end and half-bridge MOS drive circuit are connected, half-bridge MOS drive circuit is connected with resonant matching circuit through switching relay K1.

Furthermore, the complementary driving signal generating circuit comprises a driving chip U2 with a model of UCC37325, a resistor R1, a resistor R2, a diode D1, a diode D2, a capacitor C4 and a capacitor C5, wherein a fifth pin of the driving chip U2 is connected with one end of the resistor R1 and a cathode of the diode D1, a seventh pin of the driving chip U2 is connected with one end of the resistor R2 and a cathode of the diode D2, the other end of the resistor R1 is connected with an anode of the diode D1, then grounded and connected with a half-bridge MOS driving circuit, and the other end of the resistor R2 is connected with an anode of the diode D2, then grounded and connected with the half-bridge MOS driving circuit.

Furthermore, the half-bridge MOS drive circuit comprises a drive chip U1 with the model number of UCC27210, a MOS transistor Q1 and a MOS transistor Q2, wherein the grid electrode of the MOS transistor Q1 is connected with the third pin of the drive chip U1, the drain electrode of the MOS transistor Q1 is connected with + HV, the source electrode of the MOS transistor Q1 is connected with the drain electrode of the MOS transistor Q2, the source electrode of the MOS transistor Q2 is grounded, the grid electrode of the MOS transistor Q2 is connected with the eighth pin of the drive chip U1, and the common contact of the switching relay K1 is connected with the fourth pin and the second pin of the drive chip U1.

Further, the resonance matching circuit comprises an inductor L1, a capacitor C1, an inductor L2 and a capacitor C2, one end of the inductor L1 is connected with a normally closed contact of the switching relay K1, the other end of the inductor L1 is connected with the capacitor C1 and an external low-frequency treatment head, the other end of the capacitor C1 is grounded, one end of the inductor L2 is connected with a normally open contact of the switching relay K1, the other end of the inductor L2 is connected with the capacitor C2 and the external high-frequency treatment head, and the other end of the capacitor C2 is grounded.

Compared with the prior art, the utility model has the advantages of: the utility model has the characteristics of launch time is convenient adjustable, the acoustic pressure is convenient adjustable, but cavitation frequency dual-frenquency switches, launch efficiency is high, small, adopt the resonance to step up drive power supply voltage low safe and reliable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a circuit diagram of the ultrasonic cavitation therapeutic ultrasonic driving circuit of the utility model.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

Referring to fig. 1, the utility model provides an ultrasonic cavitation treatment ultrasonic drive circuit, including complementary drive signal generating circuit, half-bridge MOS drive circuit, switching relay K1 and resonance matching circuit, outside signal generator is connected to complementary drive signal generating circuit's one end, complementary drive signal generating circuit's the other end and half-bridge MOS drive circuit are connected, half-bridge MOS drive circuit is connected with resonance matching circuit through switching relay K1.

The complementary driving signal generating circuit comprises a driving chip U2 with the model of UCC37325, a resistor R1, a resistor R2, a diode D1, a diode D2, a capacitor C4 and a capacitor C5, wherein a fifth pin of the driving chip U2 is connected with one end of the resistor R1 and a cathode of a diode D1, a seventh pin of the driving chip U2 is connected with one end of the resistor R2 and a cathode of the diode D2, the other end of the resistor R1 is connected with an anode of the diode D1, then grounded and connected with a half-bridge MOS driving circuit, and the other end of the resistor R2 is connected with an anode of the diode D2, then grounded and connected with the half-bridge MOS driving circuit. The resistor R1, the resistor R2, the diode D1, the diode D2, the capacitor C4 and the capacitor C5 form a delay circuit, and the two signals with opposite phases are prevented from being overlapped at a rising edge and a falling edge to cause the rear half-bridge circuit to be connected in a straight-through mode.

The half-bridge MOS drive circuit comprises a drive chip U1, an MOS tube Q1 and an MOS tube Q2 of UCC27210, wherein the grid electrode of the MOS tube Q1 is connected with a third pin of the drive chip U1, the drain electrode of the MOS tube Q1 is connected with + HV, the source electrode of the MOS tube Q1 is connected with the drain electrode of the MOS tube Q2, the source electrode of the MOS tube Q2 is grounded, the grid electrode of the MOS tube Q2 is connected with an eighth pin of the drive chip U1, and a common contact of a switching relay K1 is connected with a fourth pin and a second pin of the drive chip U1. The switching relay K1 is controlled by an external controller to switch the switching value pulse output by the half bridge to the low-frequency or high-frequency therapeutic head to realize the dual-frequency switching of the cavitation frequency.

The resonance matching circuit comprises an inductor L1, a capacitor C1, an inductor L2 and a capacitor C2, one end of the inductor L1 is connected with a normally closed contact of a switching relay K1, the other end of the inductor L1 is connected with the capacitor C1 and an external low-frequency treatment head, the other end of the capacitor C1 is grounded, one end of an inductor L2 is connected with a normally open contact of the switching relay K1, the other end of the inductor L2 is connected with the capacitor C2 and the external high-frequency treatment head, and the other end of the capacitor C2 is grounded. The inductor L1, the capacitor C1, the inductor L2 and the capacitor C2 resonant filter network respectively generate resonance with the low-frequency therapeutic head ultrasonic transducer and the high-frequency therapeutic head ultrasonic transducer to convert low-voltage switching value rectangular waves output by the half bridge into high-voltage positive-wave excitation signals to excite the transducer to output ultrasound.

The utility model discloses adjust emission time and only need control signal generator's pulse output time can realize, the regulation of stepping up changes the power supply voltage realization of half-bridge through dedicated power source.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, various changes and modifications can be made by the owner within the scope of the appended claims, and the protection scope of the present invention should not be exceeded by the claims.

Claims

1. An ultrasonic cavitation therapy ultrasonic drive circuit is characterized in that: the circuit comprises a complementary drive signal generating circuit, a half-bridge MOS drive circuit, a switching relay K1 and a resonance matching circuit, wherein one end of the complementary drive signal generating circuit is connected with an external signal generator, the other end of the complementary drive signal generating circuit is connected with the half-bridge MOS drive circuit, and the half-bridge MOS drive circuit is connected with the resonance matching circuit through the switching relay K1.

2. The ultrasonic cavitation therapy ultrasonic drive circuit of claim 1, wherein: the complementary driving signal generating circuit comprises a driving chip U2 with the model of UCC37325, a resistor R1, a resistor R2, a diode D1, a diode D2, a capacitor C4 and a capacitor C5, wherein a fifth pin of the driving chip U2 is connected with one end of the resistor R1 and a cathode of a diode D1, a seventh pin of the driving chip U2 is connected with one end of a resistor R2 and a cathode of the diode D2, the other end of the resistor R1 is connected with an anode of the diode D1, then grounded and connected with a half-bridge MOS driving circuit, and the other end of the resistor R2 is connected with an anode of a diode D2, then grounded and connected with the half-bridge MOS driving circuit.

3. The ultrasonic cavitation therapy ultrasonic drive circuit of claim 1, wherein: the half-bridge MOS drive circuit comprises a drive chip U1, an MOS tube Q1 and an MOS tube Q2 of UCC27210, wherein the grid electrode of the MOS tube Q1 is connected with a third pin of the drive chip U1, the drain electrode of the MOS tube Q1 is connected with + HV, the source electrode of the MOS tube Q1 is connected with the drain electrode of the MOS tube Q2, the source electrode of the MOS tube Q2 is grounded, the grid electrode of the MOS tube Q2 is connected with an eighth pin of the drive chip U1, and a common contact of a switching relay K1 is connected with a fourth pin and a second pin of the drive chip U1.

4. The ultrasonic cavitation therapy ultrasonic drive circuit of claim 1, wherein: the resonance matching circuit comprises an inductor L1, a capacitor C1, an inductor L2 and a capacitor C2, one end of the inductor L1 is connected with a normally closed contact of a switching relay K1, the other end of the inductor L1 is connected with the capacitor C1 and an external low-frequency treatment head, the other end of the capacitor C1 is grounded, one end of an inductor L2 is connected with a normally open contact of the switching relay K1, the other end of the inductor L2 is connected with the capacitor C2 and the external high-frequency treatment head, and the other end of the capacitor C2 is grounded.