Ultrasonic transducer driving circuit and ultrasonic cavitation equipment thereof

Abstract

The utility model belongs to the technical field of electronic circuits, and relates to an ultrasonic transducer drive circuit and an ultrasonic cavitation device thereof, the ultrasonic transducer drive circuit comprises a signal generation circuit, a drive loop circuit, a power switch tube, a magnetic element and an ultrasonic transduction unit; the driving loop circuit comprises a low-voltage side driving loop circuit, a driving chip and a high-voltage side driving loop circuit; the signal generating circuit, the low-voltage side driving loop circuit, the driving chip, the high-voltage side driving loop circuit, the power switch tube, the magnetic element and the main power supply are connected in sequence, and the magnetic element is connected with the ultrasonic transduction unit in parallel or in a coupling manner. According to the utility model, high-frequency and high-voltage instantaneous pulse circuit control is realized so as to ensure that the ultrasonic transduction unit can work stably and accurately.

Description

Technical Field

[0001] This utility model relates to the field of electronic circuit technology, and in particular to an ultrasonic transducer drive circuit and its ultrasonic cavitation device. Background Technology

[0002] Non-invasive ultrasonic cavitation devices utilize high-frequency, high-intensity, low-duty-cycle pulsed energy applied to target tissue. Through extremely short, intense bursts of acoustic energy, controlled cavitation (microbubble formation) is induced within the focal volume. The dramatic expansion and collapse of these microbubbles mechanically homogenizes the cellular and tissue structures within the focal volume, transforming them into cell-free fluids or subcellular structures. Compared to traditional focused ultrasound devices, ultrasonic cavitation devices offer more precise, effective, and safer treatments for tumors, cancers, and other diseases.

[0003] However, the core functional output unit of ultrasonic cavitation equipment is the ultrasonic transducer system, which includes a drive unit circuit and an ultrasonic transducer unit. The drive unit circuit drives the ultrasonic transducer unit to emit ultrasonic waves to generate the required ultrasonic wave shape and energy at the target focal point. The ultrasonic transducer unit used in ultrasonic cavitation therapy requires high-frequency, high-voltage, instantaneous pulse circuit control, which existing circuits cannot achieve. Utility Model Content

[0004] In view of this, the present invention provides an ultrasonic transducer drive circuit and its ultrasonic cavitation device to solve the problem that the prior art cannot achieve high-frequency high-voltage instantaneous pulse circuit control.

[0005] To achieve one or more of the above objectives or other objectives, this utility model proposes an ultrasonic transducer driving circuit, which includes a signal generation circuit, a driving loop circuit, a power switching transistor, a magnetic element, and an ultrasonic transducer unit.

[0006] The drive circuit includes a low-voltage side drive circuit, a drive chip, and a high-voltage side drive circuit.

[0007] The signal generating circuit, the low-voltage side drive circuit, the drive chip, the high-voltage side drive circuit, the power switch, the magnetic element, and the main power supply are connected in sequence. The magnetic element is connected in parallel or coupled to the ultrasonic transducer unit.

[0008] Furthermore, the low-voltage side drive circuit includes a first auxiliary power supply circuit, a first circuit unit, and a first grounding terminal;

[0009] The first pin of the driver chip is connected to the first auxiliary power supply circuit.

[0010] The first circuit unit is connected to the second pin of the driver chip and the signal generation circuit, respectively;

[0011] The third and fourth pins of the driver chip are both connected to the first ground terminal.

[0012] Furthermore, the first auxiliary power supply circuit includes a first auxiliary power supply and a first capacitor; the first auxiliary power supply is connected to the first pin of the driver chip, one end of the first capacitor is connected between the first pin of the driver chip and the first auxiliary power supply, and the other end of the first capacitor is connected to the first ground terminal;

[0013] The first circuit unit includes a first resistor, a second resistor, and a second capacitor; the first resistor is connected in series between the second pin of the driver chip and the signal generation circuit.

[0014] One end of the second resistor and one end of the second capacitor are both connected between the second pin of the driver chip and the first resistor, and the other end of the second resistor and the other end of the second capacitor are both connected to the first ground terminal;

[0015] The first grounding terminal is a grounding terminal.

[0016] Furthermore, the high-voltage side drive circuit includes a second auxiliary power supply circuit, a second circuit unit, and a second grounding terminal;

[0017] The fifth pin of the driver chip is connected to the second auxiliary power supply circuit;

[0018] One end of the second circuit unit is connected to the sixth and seventh pins of the driver chip, and the other end is connected to the first terminal of the power switch transistor;

[0019] The eighth pin of the driver chip is connected to the second ground terminal.

[0020] Furthermore, the second auxiliary power supply circuit includes a second auxiliary power supply and a third capacitor; the second auxiliary power supply is connected to the fifth pin of the driver chip, one end of the third capacitor is connected between the fifth pin of the driver chip and the second auxiliary power supply, and the other end of the third capacitor is connected to the second ground terminal;

[0021] The second circuit unit includes a third resistor, which is connected in series between the sixth pin of the driver chip and the first terminal of the power switch, and between the seventh pin of the driver chip and the first terminal of the power switch.

[0022] The second grounding terminal is a grounding terminal.

[0023] Furthermore, the magnetic element is connected between the second terminal of the power switch and the main power supply, and the third terminal of the power switch is connected to the ground terminal.

[0024] Furthermore, the magnetic element is a transformer, and the magnetic element includes a primary winding and a secondary winding, with the primary winding and the secondary winding coupled together.

[0025] The primary winding is provided, with one end of the primary winding connected to the second end of the power switching transistor and the other end connected to the main power supply;

[0026] Alternatively, there may be two primary windings, and two corresponding power switching transistors, with the first ends of the two power switching transistors respectively connected to the two drive circuits; one end of each of the two primary windings is connected to the second end of the first power switching transistor; and the other end of each of the two primary windings is connected to the main power supply.

[0027] The secondary winding is connected in series or in parallel with the ultrasonic transducer unit.

[0028] Furthermore, the magnetic element is an inductor, with one end connected to the second end of the power switch and the other end connected to the main power supply; one end of the ultrasonic transducer is connected between the magnetic element and the power switch, and the other end is connected between the magnetic element and the main power supply.

[0029] Furthermore, the ultrasonic transducer drive circuit also includes a diode, the negative terminal of which is connected to the second terminal of the power switch tube, and the positive terminal of which is connected to the magnetic element.

[0030] This utility model also provides an ultrasonic cavitation device, which includes an ultrasonic transducer system, and the ultrasonic transducer system includes the ultrasonic transducer drive circuit described above.

[0031] Implementing the embodiments of this utility model will have the following beneficial effects:

[0032] The ultrasonic transducer driving circuit proposed in this utility model generates a square wave signal through a signal generation circuit. The square wave signal is processed by the low-voltage side driving circuit, the driving chip and the high-voltage side driving circuit to control the on and off of the power switch tube, thereby controlling the voltage direction and amplitude of the input ultrasonic transducer unit, so as to realize high-frequency control of the ultrasonic transducer unit.

[0033] By using a magnetic element coupled to the ultrasonic transducer, the voltage value of the main power supply output current to the ultrasonic transducer is increased to achieve high-voltage control of the ultrasonic transducer.

[0034] In summary, the ultrasonic transducer drive circuit achieves high-frequency, high-voltage instantaneous pulse control of the ultrasonic transducer unit to ensure that the ultrasonic transducer unit can work stably and accurately. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] in:

[0037] Figure 1 This is a circuit diagram showing the connection principle of the ultrasonic transducer drive circuit of this utility model.

[0038] Figure 2 This is a circuit diagram of an ultrasonic transducer drive circuit in one embodiment of the present invention;

[0039] Figure 3 This is a circuit diagram of the ultrasonic transducer drive circuit in another embodiment of the present invention;

[0040] Figure 4 This is a circuit diagram of the ultrasonic transducer drive circuit in another embodiment of the present invention.

[0041] Figure label:

[0042] 1. Signal generating circuit; 2. Drive circuit; 21. Low-voltage side drive circuit; 211. First auxiliary power supply circuit; 212. First circuit unit; 213. First ground terminal; 22. Driver chip; 23. High-voltage side drive circuit; 231. Second auxiliary power supply circuit; 232. Second circuit unit; 233. Second ground terminal; 3. Power switching transistor; 4. Magnetic component; 41. Primary winding; 42. Secondary winding; 5. Ultrasonic transducer unit; 6. Main power supply; 7. First auxiliary power supply; 8. Second auxiliary power supply; 9. Diode; C1. First capacitor; R1. First resistor; R2. Second resistor; C2. Second capacitor; C3. Third capacitor; R3. Third resistor; T1. Transformer; L1. Inductor. Detailed Implementation

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order; the cold water mentioned in the specification and claims of this invention includes room temperature water.

[0044] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0045] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0046] Reference Figures 1 to 4 The first embodiment of this application proposes an ultrasonic transducer driving circuit, which includes: a signal generating circuit 1 (i.e., PH in the figure), a driving loop circuit 2, a power switch 3 (i.e., Q1 in the figure), a magnetic element 4 (i.e., transformer T1 or inductor L1 in the figure), and an ultrasonic transducer unit 5 (i.e., PIZ in the figure); the driving loop circuit 2 includes a low-voltage side driving loop circuit 21, a driving chip 22, and a high-voltage side driving loop circuit 23; the signal generating circuit 1, the low-voltage side driving loop circuit 21, the driving chip 22, the high-voltage side driving loop circuit 23, the power switch 3, the magnetic element 4, and the main power supply 6 (i.e., +VBUS in the figure) are connected in sequence, and the magnetic element 4 is connected in parallel or coupled to the ultrasonic transducer unit 5.

[0047] In this embodiment, the signal generation circuit 1 is used to generate a square wave signal.

[0048] The low-voltage side drive circuit 21 is used to preprocess the square wave signal sent by the signal generation circuit 1 so that the drive chip 22 can correctly identify and process it.

[0049] The driver chip 22 is used to receive the signal processed by the low-voltage side drive circuit 21 and generate corresponding control signals to drive the high-voltage side drive circuit 23.

[0050] The high-voltage side drive circuit 23 is used to further process the signal output by the drive chip 22 and transmit it to the power switch 3.

[0051] The power switch 3 is controlled to turn on and off according to the signal output from the high-voltage side drive circuit 23. Then, through the magnetic element 4, the voltage direction and amplitude of the output current are changed, thereby realizing high-frequency instantaneous pulse control of the ultrasonic transducer unit 5: when the square wave signal generated by the signal generation circuit 1 is a high-level signal, the power switch 3 is turned on, and the voltage applied to the ultrasonic transducer unit 5 is a positive voltage through the processing of the magnetic element 4; when the square wave signal generated by the signal generation circuit 1 is a low-level signal, the power switch 3 is turned off, and the voltage applied to the ultrasonic transducer unit 5 is a reverse voltage through the processing of the magnetic element 4.

[0052] The magnetic element 4 is used to regulate the current input from the main power supply 6 to high voltage, and then output it to the ultrasonic transducer unit 5.

[0053] In summary, the ultrasonic transducer drive circuit of this invention achieves high-frequency and high-voltage instantaneous pulse control of the ultrasonic transducer unit 5 to ensure that the ultrasonic transducer unit 5 can work stably and accurately.

[0054] Specifically, the power supplies connected to the low-voltage side drive circuit 21 and the high-voltage side drive circuit 23 are independent and isolated from each other to prevent high voltage from penetrating into the drive chip 22. This avoids the possibility that high voltage signals may penetrate into the low-voltage side through power lines or other means, thereby damaging the drive chip 22 or other low-voltage components. This can reduce electrical interference between the low-voltage side and the high-voltage side, thereby improving the stability and reliability of the entire circuit.

[0055] Reference Figures 2 to 4 The low-voltage side drive circuit 21 includes a first auxiliary power supply circuit 211, a first circuit unit 212, and a first ground terminal 213 (i.e., SGND in the figure); the first pin of the drive chip 22 (i.e., VCC1 pin of the drive chip 22 in the figure) is connected to the first auxiliary power supply circuit 211; the first circuit unit 212 is respectively connected to the second pin of the drive chip 22 (i.e., IN+ pin of the drive chip 22 in the figure) and the signal generation circuit 1; the third pin (i.e., IN- pin of the drive chip 22 in the figure) and the fourth pin (i.e. GND1 pin of the drive chip 22 in the figure) are both connected to the first ground terminal 213.

[0056] In this embodiment, the first pin of the driver chip 22 is used to connect to a low-voltage power supply (i.e., the first auxiliary power supply circuit 211 is connected to a low-voltage power supply) to provide the power required for the low-voltage side drive circuit 21 to operate. The first circuit unit 212 is used to preprocess the signal generated by the signal generation circuit 1 before transmitting it to the driver chip 22. The first ground terminal 213 is used to provide a stable reference potential to ensure the normal operation of the low-voltage side drive circuit 21.

[0057] Reference Figures 2 to 4 The first auxiliary power supply circuit 211 includes a first auxiliary power supply 7 (i.e., VDI in the figure) and a first capacitor C1. The first auxiliary power supply 7 is connected to the first pin of the driver chip 22. One end of the first capacitor C1 is connected between the first pin of the driver chip 22 and the first auxiliary power supply 7, and the other end of the first capacitor C1 is connected to the first ground terminal 213.

[0058] The first circuit unit 212 includes a first resistor R1, a second resistor R2, and a second capacitor C2; the first resistor R1 is connected in series between the second pin of the driver chip 22 and the signal generation circuit 1; one end of the second resistor R2 and one end of the second capacitor C2 are both connected between the second pin of the driver chip 22 and the first resistor R1, and the other end of the second resistor R2 and the other end of the second capacitor C2 are both connected to the first ground terminal 213; the first ground terminal 213 is a grounding terminal.

[0059] In this embodiment, the first capacitor C1 serves as a filter capacitor, used to smooth the DC voltage provided by the first auxiliary power supply 7, reducing the impact of power fluctuations on the driver chip 22 and improving the power supply stability of the circuit. The first resistor R1 serves as a current-limiting resistor, used to limit the signal current sent from the signal generation circuit 1 to the driver chip 22, preventing excessive current from damaging the input terminal of the driver chip 22. The second resistor R2 serves as a pull-down resistor, ensuring that the second pin of the driver chip 22 can be stably kept at a low level when the signal generation circuit 1 is not sending a signal, preventing malfunctions caused by floating. The second capacitor C2 serves as a decoupling capacitor, used to reduce high-frequency interference between the signal generation circuit 1 and the driver chip 22, improving the signal transmission quality.

[0060] In summary, by adding the first capacitor C1 to the first circuit unit 212 and the first resistor R1, second resistor R2, and second capacitor C2 to the first auxiliary power supply circuit 211, not only is the power supply stability and signal transmission quality of the circuit improved, but the current limiting and pull-down resistor design also protects the input terminal of the driver chip 22, preventing damage caused by external circuit malfunctions. This makes the low-voltage side drive circuit 21 more complete and reliable.

[0061] Reference Figures 2 to 4The high-voltage side drive circuit 23 includes a second auxiliary power supply circuit 231, a second circuit unit 232, and a second ground terminal 233; the fifth pin of the drive chip 22 (i.e., the VCC2 pin of the drive chip 22 in the figure) is connected to the second auxiliary power supply circuit 231; one end of the second circuit unit 232 is connected to the sixth pin (i.e., the OUTH pin of the drive chip 22 in the figure) and the seventh pin (i.e., the OUTL pin of the drive chip 22 in the figure), and the other end is connected to the first end of the power switch 3; the eighth pin of the drive chip 22 (i.e., the VEE2 pin of the drive chip 22 in the figure) is connected to the second ground terminal 233.

[0062] In this embodiment, the second auxiliary power supply circuit 231 provides a stable DC driving voltage for the high-voltage side drive circuit circuit 23. The second circuit unit 232 is used to further process the drive signal output by the drive chip 22. The eighth pin of the drive chip 22 is connected to the second ground terminal 233 to provide a reference potential for the circuit.

[0063] The high-voltage side drive circuit 23 is isolated from the low-voltage side drive circuit 21 to ensure the safety and stability of the circuit. The drive chip 22 typically has a fast response speed, enabling it to quickly respond to changes in the control signal and achieve rapid control of the power switch 3.

[0064] Reference Figures 2 to 4 The second auxiliary power supply circuit 231 also includes a second auxiliary power supply 8 (i.e., VH+ in the figure) and a third capacitor C3; the second auxiliary power supply 8 is connected to the fifth pin of the driver chip 22, one end of the third capacitor C3 is connected between the fifth pin of the driver chip 22 and the second auxiliary power supply 8, and the other end of the third capacitor C3 is connected to the second ground terminal 233.

[0065] The second circuit unit 232 includes a third resistor R3, which is connected in series between the sixth pin of the driver chip 22 and the first terminal of the power switch 3, and between the seventh pin of the driver chip 22 and the first terminal of the power switch 3; the second ground terminal 233 is a ground terminal.

[0066] In this embodiment, the third capacitor C3 serves as a filter capacitor, used to smooth the DC voltage provided by the second auxiliary power supply 8, reducing the impact of power fluctuations on the driver chip 22 and ensuring stable operation of the driver chip 22. The third capacitor C3 also reduces high-frequency interference between the driver chip 22 and other circuits, improving the circuit's anti-interference capability. The third resistor R3 serves as a current-limiting resistor, used to limit the drive current output from the driver chip 22 to the power switch 3, preventing excessive current from damaging the input terminal of the power switch 3. When the driver chip 22 outputs a high or low level, the third resistor R3, together with the input impedance of the power switch 3, forms a voltage divider, ensuring that the power switch 3 can reliably turn on or off.

[0067] In summary, the addition of a third capacitor C3 and a third resistor R3 to the second circuit unit 232 not only improves the stability and performance of the circuit but also enhances its safety and reliability. This makes the high-voltage side drive circuit 23 more complete and efficient.

[0068] Reference Figures 2 to 4 The magnetic element 4 is connected between the second end of the power switch 3 and the main power supply 6, and the third end of the power switch 3 is connected to the ground terminal.

[0069] Specifically, the power switch 3 is responsible for controlling the flow of electrical energy, while the magnetic element 4 is used for the transmission and conversion of electrical energy.

[0070] Reference Figure 2 In one embodiment, the magnetic element 4 is a transformer T1. The magnetic element 4 includes a primary winding 41 and a secondary winding 42, which are coupled together. The primary winding 41 is provided with one end connected to the second end of the power switch 3 and the other end connected to the main power supply 6.

[0071] In this embodiment, when the square wave signal generated by the signal generation circuit 1 is at a high level, the power switch 3 is turned on, the current in the primary winding 41 of the transformer T1 increases, and a positive voltage is coupled to the ultrasonic transducer unit 5. When the square wave signal generated by the signal generation circuit 1 is at a low level, the power switch 3 is turned off, the current in the primary winding 41 of the transformer T1 decreases, and a reverse voltage is coupled to the ultrasonic transducer unit 5.

[0072] Reference Figure 3 In some embodiments, there are two primary windings 41 and two corresponding power switching transistors 3. The first ends of the two power switching transistors 3 are respectively connected to the two drive circuits 2. One end of each of the two primary windings 41 is connected to the second end of the first power switching transistor 3. The other end (center tap end) of each of the two primary windings 41 is connected to the main power supply 6.

[0073] In this embodiment, when the square wave signal generated by the signal generating circuit 1 connected to the first drive circuit circuit 2 is at a high level and the square wave signal generated by the signal generating circuit 1 connected to the second drive circuit circuit 2 is at a low level, the first power switch 3 is turned on. The current direction on the primary winding 41 side is: main power supply 6, first primary winding 41, second end of first power switch 3, third end of first power switch 3, ground terminal (ground wire or ground), and positive voltage is coupled from the first primary winding 41 to the secondary winding 42 (and ultrasonic transducer 5). When the square wave signal generated by the signal generating circuit 1 connected to the first drive circuit circuit 2 is at a low level, and the square wave signal generated by the signal generating circuit 1 connected to the second drive circuit circuit 2 is at a high level, the second power switch 3 is turned on. The current direction on the primary winding 41 side is: main power supply 6, second primary winding 41, second terminal of second power switch 3, third terminal of second power switch 3, ground terminal (ground wire or ground), and reverse voltage is coupled from the second primary winding 41 to the secondary winding 42 (and ultrasonic transducer 5).

[0074] The secondary winding 42 is connected in series or in parallel with the ultrasonic transducer unit 5.

[0075] Specifically, the primary winding 41 is used to receive input electrical energy and transmit the electrical energy to the secondary winding 42 through electromagnetic induction. The secondary winding 42 is used to drive the ultrasonic transducer unit 5.

[0076] Specifically, power switch 3 is a high-speed MOSFET, with the first terminal of power switch 3 being the gate (G), the second terminal of power switch 3 being the drain (D), and the third terminal of power switch 3 being the source (S).

[0077] In other embodiments, the power switch 3 is a power silicon carbide device or an IGBT.

[0078] Specifically, the output voltage range of the main power supply 6 is 100-1000V, and the voltage amplification factor of the magnetic component 4 is 2-10 times.

[0079] Reference Figure 4 The magnetic element 4 is an inductor L1. One end of the magnetic element 4 is connected to the second end of the power switch tube 3, and the other end is connected to the main power supply 6. One end of the ultrasonic transducer unit 5 is connected between the magnetic element 4 and the power switch tube 3, and the other end is connected between the magnetic element 4 and the main power supply 6.

[0080] In this embodiment, when the square wave signal generated by the signal generating circuit 1 is at a high level, the power switch 3 is turned on, the magnetic element 4 stores energy, and simultaneously provides a positive voltage to the ultrasonic transducer unit 5. When the square wave signal generated by the signal generating circuit 1 is at a low level, the power switch 3 is turned off, the magnetic element 4 releases energy, and simultaneously provides a reverse voltage to the ultrasonic transducer unit 5.

[0081] Reference Figure 2 and Figure 4 The ultrasonic transducer drive circuit also includes a diode 9 (i.e., D1 in the figure), the negative terminal of which is connected to the second terminal of the power switch 3 and the positive terminal is connected to the magnetic element 4.

[0082] In this embodiment, diode 9 is used to prevent reverse conduction that may exist in the body diode of the MOSFET (i.e., power switch 3). Due to power dissipation in the diode and speed requirements, diode 9 may be omitted in some embodiments, such as... Figure 2 Diode 9 may be omitted if necessary.

[0083] This utility model also provides an ultrasonic cavitation device, which includes an ultrasonic transducer system, and the ultrasonic transducer system includes the ultrasonic transducer drive circuit described above.

[0084] In this embodiment, the ultrasonic cavitation device of this invention achieves precise control and efficient driving of the ultrasonic transducer by integrating the ultrasonic transducer drive circuit described above.

[0085] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An ultrasonic transducer drive circuit, characterized in that, Includes signal generation circuit, drive circuit, power switching transistor, magnetic components, and ultrasonic transducer unit; The drive circuit includes a low-voltage side drive circuit, a drive chip, and a high-voltage side drive circuit. The signal generating circuit, the low-voltage side drive circuit, the drive chip, the high-voltage side drive circuit, the power switch, the magnetic element, and the main power supply are connected in sequence. The magnetic element is connected in parallel or coupled to the ultrasonic transducer unit.

2. The ultrasonic transducer drive circuit according to claim 1, characterized in that, The low-voltage side drive circuit includes a first auxiliary power supply circuit, a first circuit unit, and a first grounding terminal; The first pin of the driver chip is connected to the first auxiliary power supply circuit. The first circuit unit is connected to the second pin of the driver chip and the signal generation circuit, respectively; The third and fourth pins of the driver chip are both connected to the first ground terminal.

3. The ultrasonic transducer drive circuit according to claim 2, characterized in that, The first auxiliary power supply circuit includes a first auxiliary power supply and a first capacitor; the first auxiliary power supply is connected to the first pin of the driver chip, one end of the first capacitor is connected between the first pin of the driver chip and the first auxiliary power supply, and the other end of the first capacitor is connected to the first ground terminal; The first circuit unit includes a first resistor, a second resistor, and a second capacitor; the first resistor is connected in series between the second pin of the driver chip and the signal generation circuit. One end of the second resistor and one end of the second capacitor are both connected between the second pin of the driver chip and the first resistor, and the other end of the second resistor and the other end of the second capacitor are both connected to the first ground terminal; The first grounding terminal is a grounding terminal.

4. The ultrasonic transducer drive circuit according to claim 2, characterized in that, The high-voltage side drive circuit includes a second auxiliary power supply circuit, a second circuit unit, and a second grounding terminal; The fifth pin of the driver chip is connected to the second auxiliary power supply circuit; One end of the second circuit unit is connected to the sixth and seventh pins of the driver chip, and the other end is connected to the first terminal of the power switch transistor; The eighth pin of the driver chip is connected to the second ground terminal.

5. The ultrasonic transducer drive circuit according to claim 4, characterized in that, The second auxiliary power supply circuit includes a second auxiliary power supply and a third capacitor; the second auxiliary power supply is connected to the fifth pin of the driver chip, one end of the third capacitor is connected between the fifth pin of the driver chip and the second auxiliary power supply, and the other end of the third capacitor is connected to the second ground terminal; The second circuit unit includes a third resistor, which is connected in series between the sixth pin of the driver chip and the first terminal of the power switch, and between the seventh pin of the driver chip and the first terminal of the power switch. The second grounding terminal is a grounding terminal.

6. The ultrasonic transducer drive circuit according to claim 4, characterized in that, The magnetic element is connected between the second end of the power switch and the main power supply, and the third end of the power switch is connected to the ground terminal.

7. The ultrasonic transducer drive circuit according to claim 6, characterized in that, The magnetic element is a transformer, and the magnetic element includes a primary winding and a secondary winding, with the primary winding and the secondary winding coupled together. The primary winding is provided, with one end of the primary winding connected to the second end of the power switching transistor and the other end connected to the main power supply; Alternatively, there may be two primary windings, and two corresponding power switching transistors, with the first ends of the two power switching transistors respectively connected to the two drive circuits; one end of each of the two primary windings is connected to the second end of the first power switching transistor; and the other end of each of the two primary windings is connected to the main power supply. The secondary winding is connected in series or in parallel with the ultrasonic transducer unit.

8. The ultrasonic transducer drive circuit according to claim 6, characterized in that, The magnetic element is an inductor, with one end connected to the second end of the power switch and the other end connected to the main power supply; one end of the ultrasonic transducer is connected between the magnetic element and the power switch, and the other end is connected between the magnetic element and the main power supply.

9. The ultrasonic transducer drive circuit according to claim 6, characterized in that, The ultrasonic transducer drive circuit also includes a diode, the negative terminal of which is connected to the second terminal of the power switch tube, and the positive terminal of which is connected to the magnetic element.

10. An ultrasonic cavitation device, comprising an ultrasonic transducer system, characterized in that, The ultrasonic transducer system includes the ultrasonic transducer drive circuit according to any one of claims 1-9.

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