WO2022193118A1 - 超声波驱动电路 - Google Patents

超声波驱动电路 Download PDF

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Publication number
WO2022193118A1
WO2022193118A1 PCT/CN2021/081015 CN2021081015W WO2022193118A1 WO 2022193118 A1 WO2022193118 A1 WO 2022193118A1 CN 2021081015 W CN2021081015 W CN 2021081015W WO 2022193118 A1 WO2022193118 A1 WO 2022193118A1
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Prior art keywords
circuit
resistor
electrically connected
transistor
power supply
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PCT/CN2021/081015
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English (en)
French (fr)
Inventor
何世准
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深圳市港基电技术有限公司
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Application filed by 深圳市港基电技术有限公司 filed Critical 深圳市港基电技术有限公司
Priority to PCT/CN2021/081015 priority Critical patent/WO2022193118A1/zh
Priority to CN202180077743.7A priority patent/CN116546933A/zh
Priority to JP2021517690A priority patent/JP7381570B2/ja
Publication of WO2022193118A1 publication Critical patent/WO2022193118A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N7/00—Ultrasound therapy

Definitions

  • the present application relates to the field of ultrasonic technology, and in particular, to an ultrasonic drive circuit.
  • a shoveler usually includes an ultrasonic drive circuit and an ultrasonic cutter head.
  • the existing ultrasonic drive circuit drives the shovel head to generate high-frequency vibration by outputting a drive signal of a certain frequency, and adjusts the frequency of the shovel head by adjusting the frequency of the drive signal. Vibration strength.
  • the vibrating skin scraper has poor mute effect, which seriously affects the user experience.
  • an embodiment of the present application proposes an ultrasonic drive circuit, so as to improve the mute effect of the shoveler and improve the user experience.
  • an ultrasonic drive circuit proposed in an embodiment of the present application is used for a leather shovel, and the ultrasonic drive circuit includes: a power supply circuit; a main control circuit, including a microcontroller, a capacitor and a buzzer, the microcontroller The buzzer is electrically connected to the buzzer through the capacitor, and the microcontroller is also electrically connected to the power supply circuit; a drive switch circuit is electrically connected to the microcontroller and the power supply circuit; a voltage conversion circuit includes a primary coil and the secondary coil, the two ends of the primary coil are respectively electrically connected to the power supply circuit and the drive switch circuit; the drive signal output interface is electrically connected to the secondary coil of the voltage conversion circuit; the switch circuit is electrically connected the power supply circuit and the microcontroller; and an ion motion control circuit, which is electrically connected to the microcontroller, the power supply circuit and the drive signal output interface; wherein the drive switch circuit includes: a field effect transistor, A first resistor, a second resistor, a third resistor
  • an ultrasonic drive circuit proposed in an embodiment of the present application is used for a leather shovel, and the ultrasonic drive circuit includes: a power supply circuit; a main control circuit, which is electrically connected to the power supply circuit; and a drive switch circuit, which is electrically connected to the the main control circuit and the power supply circuit; a voltage conversion circuit, which is electrically connected to the power supply circuit and the driving switch circuit; a driving signal output interface, which is electrically connected to the voltage conversion circuit; wherein, the power supply circuit is used to provide power voltage, the main control circuit is used to output a drive signal of a target frequency and a target duty cycle to the drive switch circuit, and the drive switch circuit controls the voltage conversion circuit according to the drive signal output by the main control circuit Perform voltage conversion on the power supply voltage provided by the power supply circuit to obtain a target driving voltage, and the voltage conversion circuit outputs the target driving voltage to the ultrasonic cutter head of the peeler through the driving signal output interface, so as to obtain a target driving voltage.
  • the ultrasonic cutter head is used
  • the range of the target frequency is 24.5-25.5KHz
  • the range of the target duty cycle is 37% ⁇ 2%
  • the range of the target driving voltage is 2.7-4.2V.
  • the main control circuit includes a microcontroller, and the microcontroller is electrically connected to the power supply circuit and the drive switch circuit.
  • the driving switch circuit includes: a field effect transistor, a first resistor, a second resistor, a third resistor and a fourth resistor, wherein the field effect transistor includes a source, a gate and a drain the source electrode is grounded through the first resistor, the gate electrode is electrically connected to the main control circuit through the second resistor, and the drain electrode is electrically connected to the voltage conversion circuit; the field effect transistor is also The main control circuit is electrically connected through a third resistor, and the field effect transistor is also electrically connected to the main control circuit through a fourth resistor and the second resistor.
  • the voltage conversion circuit includes a primary coil and a secondary coil, the primary coil is electrically connected to the drive switch circuit and the power supply circuit, and the secondary coil is electrically connected to the drive signal Output Interface.
  • the ultrasonic drive circuit further includes an ion motion control circuit
  • the ion motion control circuit includes: a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a third resistor Ten resistors, eleventh resistors, twelfth resistors, thirteenth resistors, the first transistor, the second transistor, the third transistor, the fourth transistor, the handle bar connection for electrically connecting the handle bar an interface and a shovel metal piece connection interface for electrically connecting the shovel metal piece, wherein the base of the first transistor is electrically connected to the main control circuit through the fifth resistor, and the first transistor The emitter is grounded, the collector of the first transistor is electrically connected to the blade metal connection interface through the sixth resistor, and the drive signal output interface is also electrically connected to the sixth resistor and the blade between the metal sheets connecting the interfaces; the base of the second transistor is electrically connected to the main control circuit through the seventh resistor, the emitter of the second transistor is grounded
  • the handle conductive strip connection interface is electrically connected through the thirteenth resistor; the collector of the third transistor is electrically connected to the collector of the second transistor, and the emitter of the third transistor passes through the
  • the eighth resistor is electrically connected to the power supply circuit, the base of the third transistor is electrically connected to the collector of the fourth transistor through the tenth resistor, and one end of the ninth resistor is electrically connected to the Between the base of the third transistor and the tenth resistor, the other end of the ninth resistor is electrically connected between the eighth resistor and the emitter of the fourth transistor; the third An eleventh resistor is electrically connected between the base of the fourth transistor and the emitter; one end of the twelfth resistor is electrically connected to the base of the fourth transistor, and the twelfth resistor is electrically connected to the base of the fourth transistor.
  • the other end of the resistor is electrically connected between the thirteenth resistor and the collector of the second transistor, and the collector of the fourth transistor is also electrically connected between the sixth resistor and the collector. between the collectors of the first transistor, wherein the first transistor and the second transistor are NPN transistors, and the third transistor and the fourth transistor are PNP transistors.
  • the ultrasonic drive circuit further includes a switch control circuit
  • the switch control circuit includes a control switch, a first indicator light, a second indicator light, a third indicator light, a fourteenth resistor, a A fifteenth resistor and a sixteenth resistor; wherein, one end of the control switch is grounded through the fourteenth resistor, the other end of the control switch is electrically connected to the main control circuit, and the other end of the control switch is electrically connected to the main control circuit.
  • the other end is also electrically connected to the main control circuit and the power supply circuit through a second indicator light and a fifteenth resistor, and one end of the first indicator light is electrically connected to the second indicator light and the fifteenth resistor
  • the other end of the first indicator light is electrically connected to the main control circuit; one end of the third indicator light is electrically connected to the other end of the first indicator light, and the other end of the third indicator light is electrically connected to the main control circuit.
  • One end is electrically connected to the main control circuit and the power supply circuit through the sixteenth resistor.
  • the power supply circuit includes a first interface, a charging circuit, a battery interface, a booster circuit, and a voltage regulator circuit
  • the first interface includes a power supply pin group for accessing the power supply, so the The power supply pin group is electrically connected to the battery interface and the booster circuit through the charging circuit, and the booster circuit is electrically connected to the voltage regulator circuit, the main control circuit, and the voltage conversion circuit.
  • the voltage regulator circuit is electrically connected to the main control circuit.
  • an ultrasonic driving circuit provided by an embodiment of the present application includes: a power supply circuit; a main control circuit, which is electrically connected to the power supply circuit; a drive switch circuit, which is electrically connected to the main control circuit and the power supply circuit; a voltage a conversion circuit, which is electrically connected to the power supply circuit and the driving switch circuit; a driving signal output interface is electrically connected to the voltage conversion circuit; wherein, the main control circuit is used for outputting the driving signal of the target frequency and the target duty cycle to The driving switch circuit, which drives the voltage conversion circuit to perform voltage conversion on the power supply voltage provided by the power supply circuit according to the driving signal output by the main control circuit to obtain a target driving voltage, and the voltage conversion The circuit outputs the target driving voltage to the ultrasonic transducer through the driving signal output interface, so that the ultrasonic transducer can convert the target driving voltage into ultrasonic output; wherein, the range of the target frequency is 24.5 ⁇ 25.5KHz, the range of the target duty cycle is 37% ⁇ 2%
  • the ultrasonic drive circuit provided by the embodiment of the present application outputs the drive signal of the target frequency and the target duty cycle to the drive switch circuit through the main control circuit, and the drive switch circuit is based on the main control circuit.
  • the drive signal output by the circuit controls the voltage conversion circuit to perform voltage conversion on the power supply voltage provided by the power supply circuit to obtain the target drive voltage, and output the obtained target drive voltage through the drive signal output interface to the ultrasonic cutter head to drive the ultrasonic cutter head to vibrate, Thereby, the mute effect is achieved, and the product quality and user experience are improved.
  • the multi-functional combination mode of ion import, export function and ultrasonic vibration is realized, which provides users with more choices, improves the user experience and improves the application scope of the product.
  • the power supply voltage input from the battery can be boosted twice, which is beneficial to achieve better control of the voltage required for ultrasonic vibration.
  • FIG. 1 is a schematic circuit diagram of an ultrasonic driving circuit provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of the connection relationship between the main control circuit, the driving switch circuit and the voltage conversion circuit in FIG. 1 .
  • FIG. 3 is another schematic circuit diagram of an ultrasonic driving circuit provided by an embodiment of the present application.
  • FIG. 4 is a schematic circuit diagram of the ion motion control circuit in FIG. 3 .
  • FIG. 5 is a schematic circuit diagram of the switch control circuit in FIG. 3 .
  • FIG. 6 is a schematic structural diagram of the power supply circuit in FIG. 1 .
  • FIG. 7 is a schematic diagram of the connection relationship between the first interface, the charging circuit and the battery interface in FIG. 6 .
  • FIG. 8 is a schematic circuit diagram of the booster circuit in FIG. 6 .
  • FIG. 9 is a schematic circuit diagram of the voltage regulator circuit in FIG. 6 .
  • an embodiment of the present application proposes an ultrasonic driving circuit.
  • the ultrasonic driving circuit in the embodiment of the present application can be applied to, for example, a beauty equipment such as a skin shovel, and can also be used in other equipment that adopts ultrasonic driving, such as ultrasonic cleaning equipment.
  • the scraper includes an ultrasonic drive circuit and an ultrasonic cutter head connected to the ultrasonic drive circuit.
  • the ultrasonic drive circuit is used to generate a target frequency, a target duty cycle, and a drive signal that generates a target drive voltage according to the target frequency and target duty cycle, so as to drive the ultrasonic cutter head connected to the ultrasonic drive circuit to vibrate, and finally remove the user. aging keratin on the skin, etc., to clean the skin.
  • the ultrasonic drive circuit 10 proposed in the embodiment of the present application includes, for example, a power supply circuit 110 , a main control circuit 120 , a drive switch circuit 130 , a voltage conversion circuit 140 , and a deterministic output interface 150 .
  • the main control circuit 120 is electrically connected to the power supply circuit 110;
  • the drive switch circuit 130 is electrically connected to the main control circuit 120 and the power supply circuit 110;
  • the voltage conversion circuit 140 is electrically connected to the power supply circuit 110 and the drive switch circuit 130;
  • the drive signal output interface 150 is electrically connected to the voltage conversion circuit 140 for driving the ultrasonic cutter head of the peeler.
  • the power supply circuit 110 is used for providing a power supply voltage
  • the main control circuit 120 is used for outputting a driving signal such as a target frequency and a target duty cycle, such as a pulse signal, to the driving switch circuit 130, and the driving switch circuit 130 according to
  • the driving signal output by the main control circuit 120 controls the voltage conversion circuit 140 to perform voltage conversion on the power supply voltage provided by the power supply circuit 110 to obtain a target driving voltage.
  • the driving signal output interface 150 outputs the target driving voltage to the ultrasonic cutter head to drive the ultrasonic cutter head to vibrate.
  • the power supply circuit 110 is used to supply power to the entire circuit of the ultrasonic driving circuit 10 .
  • the power supply circuit 110 may, for example, adopt a power supply technology that is mature in the prior art.
  • the main control circuit 120 is used for outputting a driving signal with a frequency range of 24.5-25.5 KHz and a duty cycle of 37% ⁇ 2%.
  • the driving signal may be, for example, a pulse signal.
  • the driving switch circuit 130 is used to control the voltage conversion circuit 140 to perform voltage conversion, such as a boost operation, on the power supply voltage provided by the power supply circuit 110 according to the pulse signal output by the main control circuit 120 , and output the converted target driving voltage through the driving signal output interface 150 , for driving the ultrasonic cutter head; wherein the voltage range of the target driving voltage is 2.7-4.2V.
  • voltage conversion such as a boost operation
  • the ultrasonic drive circuit 10 provided by the embodiment of the present application outputs the drive signal of the target frequency and the target duty cycle to the drive switch circuit 130 through the main control circuit 120 , and the drive switch circuit 130 controls the voltage conversion circuit 140 according to the drive signal output by the main control circuit 120
  • the power supply voltage provided by the power supply circuit 110 is subjected to voltage conversion to obtain the target driving voltage, and the obtained target driving voltage is outputted through the driving signal output interface 150 to the ultrasonic cutter head to drive the ultrasonic cutter head to vibrate, and achieve a mute effect, improving product quality and user experience.
  • the main control circuit 120 includes a microcontroller U2 , and the microcontroller U2 is electrically connected to the power supply circuit 110 and the drive switch circuit 130 .
  • the microcontroller U2 can be, for example, an MCU for generating and outputting a driving signal with a frequency range of 24.5-25.5KHz and a duty cycle range of 37% ⁇ 2% to the driving switch through its pin P17 (see FIG. 2 ). circuit 130.
  • FIG. 1 the microcontroller U2
  • the main control circuit 120 may further include a buzzer BZ and a capacitor C5, the microcontroller U2 is electrically connected to one end of the buzzer BZ through the capacitor C5, and the buzzer U2 is electrically connected to one end of the buzzer BZ through the capacitor C5. The other end of the buzzer BZ is grounded.
  • the driving switch circuit 130 includes: a field effect transistor Q2, a resistor R4 (corresponding to the first resistor), a resistor R9 (corresponding to the second resistor), a resistor R11 (corresponding to the third resistor) and a resistor R10 (corresponding to the fourth resistor).
  • the field effect transistor Q2 includes, for example, a source S, a gate G and a drain D.
  • the type of the field effect transistor Q2 can be, for example, AO4430.
  • the voltage conversion circuit 140 includes, for example, a transformer T1 including a primary coil T12 and a secondary coil T13 .
  • the source S of the field effect transistor Q2 is grounded through the resistor R4, and the gate G is electrically connected to the main control circuit 120, such as the pin P17 of the microcontroller U2, through the resistor R9, so The drain D is electrically connected to one end of the primary coil T12 of the transformer T1 of the voltage conversion circuit 140 .
  • the field effect transistor Q2 is also electrically connected to the main control circuit 120, such as the microcontroller U2, through the resistor R11, and the field effect transistor Q2 is also electrically connected to the main control circuit 120, such as the microcontroller U2, through the resistor R10 and the resistor R9. of pin P17.
  • the other end of the primary coil T12 is electrically connected to the power supply circuit 110 to obtain the voltage V+ provided by the power supply circuit 110
  • the two ends of the secondary coil T13 are respectively electrically connected to the drive signal output
  • Two pins of the interface 150 ie, CN1 in FIG. 2
  • pins 2 and 3 of the CN1 terminal in FIG. 2 Two pins of the interface 150 (ie, CN1 in FIG. 2 ) (ie, pins 2 and 3 of the CN1 terminal in FIG. 2 ).
  • the ultrasonic driving circuit 10 further includes an ion motion control circuit 160 .
  • the ion motion control circuit 160 is electrically connected to the main control circuit 120, the power circuit 110 and the driving signal output interface 150, so as to control the introduction of ions such as potassium ions in skin care products, and the electrification of the human body.
  • the export of dirt also called dirt ions).
  • the ion motion control circuit 160 includes, for example: resistor R12 (corresponding to the fifth resistor), resistor R18 (corresponding to the sixth resistor), resistor R19 (corresponding to the seventh resistor), and resistor R20 (corresponding to the seventh resistor)
  • the eighth resistor resistor R14 (corresponding to the ninth resistor), resistor R13 (corresponding to the tenth resistor), resistor R15 (corresponding to the eleventh resistor), resistor R16 (corresponding to the twelfth resistor), resistor R17 (corresponding to the thirteenth resistor) resistor), transistor Q6 (corresponding to the first transistor), transistor Q4 (corresponding to the second transistor), transistor Q5 (corresponding to the third transistor), transistor Q3 (corresponding to the fourth transistor), for electrical connection
  • the handle conductive strip connection interface CON1 of the handle conductive strip M and the blade metal piece connection interface CON3 for electrically connecting the blade metal piece FA.
  • the scraper metal piece FA is a metal piece arranged on the ultrasonic cutter head, and is used to remove dirt on the skin;
  • the handle conductive strip M is a conductive part arranged on the skin scraper.
  • the ion motion control circuit 160 and, The palm and face skin form a micro-current circuit, which can realize the introduction of nutrient ions in skin care products, the export of dirt in the human body, and the lifting function.
  • the base of the transistor Q6 is electrically connected to the main control circuit 120, such as the U2-1 pin of the microcontroller U2 through the resistor R12, and the emitter of the transistor Q6 is grounded,
  • the collector of the transistor Q6 is electrically connected to the blade metal connection interface CON3 through the resistor R18, and the driving signal output interface 150 is also electrically connected between the resistor R18 and the blade metal connection interface CON3; the transistor Q4
  • the base of the main control circuit 120 is electrically connected to pins U2-3 of the microcontroller U2 through the resistor R19, the emitter of the transistor Q4 is grounded, and the collector of the transistor Q4 is electrically connected to the handle through the resistor R17.
  • the conductive strip is connected to the interface CON1; the collector of the transistor Q5 is electrically connected to the collector of the transistor Q4, and the emitter of the transistor Q5 is electrically connected to the power supply circuit 110 through the resistor R20, such as its power supply terminal V+, and the base of the transistor Q5
  • the electrode is electrically connected to the collector of the transistor Q3 through the resistor R13, one end of the resistor R14 is electrically connected between the base of the transistor Q5 and the resistor R13, and the other end of the resistor R14 is electrically connected to the resistor R20 and the emitter of the transistor Q3
  • the resistor R15 is electrically connected between the base of the transistor Q3 and the emitter; one end of the resistor R16 is electrically connected to the base of the transistor Q3, and the other end of the resistor R16 is electrically connected between the resistor R17 and the transistor Q4 Between the collectors, the collector of the transistor Q3 is also electrically connected between the resistor R18 and the collector of the transistor Q4.
  • the transistor Q6 and the transistor Q4 are NPN transistors, and the transistor Q5 and the transistor Q3 are PNP transistors.
  • the voltage of the connection interface CON1 of the handle conductive strip is +, and the voltage of the connection interface CON3 of the blade metal piece FA electrically connected to the blade metal piece is -.
  • potassium ions are introduced into the skin.
  • the ultrasonic driving circuit 10 further includes a switch control circuit 170 , and the switch control circuit 170 is electrically connected to the power supply circuit 110 and the main control circuit 120 .
  • the switch control circuit 170 is used for function selection and control of the shovel, such as turning on, turning off, vibration + ion export, vibration + ion import and so on.
  • the switch control circuit 170 includes, for example, a control switch S1, a first indicator light LD1, a second indicator light LD2, a third indicator light LD3, a resistor R5 (corresponding to the fourteenth resistor), a resistor R7 (corresponding to the fifteenth resistor) and resistor R8 (corresponding to the sixteenth resistor); wherein, one end of the control switch S1 is grounded through the resistor R5, and the other end of the control switch S1 is electrically connected to the main control circuit 120, for example
  • the KEY2 pin of the microcontroller U2, the other end of the control switch S1 is also electrically connected to the main control circuit 120 such as the LED2 pin of the microcontroller U2 and the power supply through the second indicator light LD2 and the resistor R7 Circuit 110, one end of the first indicator light LD1 is electrically connected between the second indicator light LD2 and the resistor R7, and the other end of the first indicator light LD1 is electrically connected to the main control circuit
  • the working process of the switch control circuit 170 is, for example, that the user presses the control switch S1 for two seconds to turn on the device.
  • the shovel is in the first working mode by default, the first indicator light LD1 is on, and the ultrasonic drive circuit 10 continuously outputs ultrasonic waves for cleaning work, and the main control circuit 120 controls the ion motion control circuit 160 to realize the positive ion export function.
  • the LD3 indicator light is on; the user presses the control switch S1 again, the shovel is turned into the first working mode again, the first indicator light LD1 is on, the ultrasonic drive circuit 10 continuously outputs ultrasonic waves for cleaning work, and the main control circuit 120 controls the ion The motion control circuit 160 realizes the function of derivation of positive ions, .
  • the power supply circuit 110 may include, for example, a first interface 111 , a charging circuit 112 , a battery interface 113 , a boosting circuit 114 and a voltage-stabilizing circuit 115 .
  • the first interface 111 is electrically connected to the battery interface 113 and the booster circuit 114 through the charging circuit 112
  • the booster circuit 114 is electrically connected to the voltage regulator circuit 115 , the main control circuit 120 , and all other components.
  • the voltage conversion circuit 140 , the voltage regulator circuit 115 is electrically connected to the main control circuit 120
  • the charging circuit 112 is further connected to the main control circuit 120 and the switch control circuit 170 .
  • the first interface 111 (that is, INUSB in FIG. 7 ) can be, for example, a USB interface, which includes a power supply pin group such as VBUS pins and even AGND pins, which can be used to access power.
  • the power pin group is connected to the battery interface 113 and the booster circuit 114 through the charging circuit 112 .
  • the charging circuit 112 includes, for example, a power management chip U3, and the model of the power management chip U3 may be, for example, TP4057.
  • the VCC pin of the power management chip U3 is connected to the VBUS pin of the first interface 111 (ie, INUSB in FIG. 7 ) to obtain power.
  • the STDBY pin of the power management chip U3 is connected to the LED1 pin of the microcontroller U2 through the resistor R04.
  • the CHRG pin of the power management chip U3 is connected to the LED2 pin of the microcontroller U2 through the resistor R05.
  • the BAT pin of the power management chip U3 is a voltage output pin, which is connected to the battery interface 113 (ie, the CON2 interface in FIG. 7 ).
  • the charging circuit 112 also includes, for example, other electrical components, such as capacitors C01 and C02, resistor R02, etc., to jointly implement the battery charging function.
  • the charging circuit 112 may also be implemented by other charging circuits in the prior art, which is not limited in the present application.
  • the first interface 111 further includes a data writing pin group such as pin D- and pin D+, which are electrically connected to the main control circuit 120, such as pin D- is connected to the microcontroller
  • the pin ISPDAT of the device U2, and the pin D+ are connected to the hardware ISPCK of the microcontroller U2, so as to write data to the microcontroller U2 of the main control circuit 120, so as to realize the programming and debugging simulation of the microcontroller U2.
  • the ultrasonic driving circuit 10 further includes the second interface ISP, and the second interface ISP is electrically connected between the main control circuit 120 and the first interface 111 , for writing data to the main control circuit.
  • one pin of the second interface ISP is connected between the pin D- of the first interface 111 and the pin ISPDAT of the microcontroller U2
  • the other pin of the second interface ISP is connected between the pin D- of the first interface 111 and the pin ISPDAT of the microcontroller U2.
  • data can also be written to the microcontroller U2 through the second interface ISP, so as to realize program programming and debugging simulation of the microcontroller U2. In this way, the user can realize programming and debugging simulation of the microcontroller U2 through the first interface 111 or the second interface ISP.
  • the booster circuit 114 includes, for example, a booster chip U4.
  • the boost chip is, for example, an MT3608 chip, which can boost the DC power supply voltage.
  • the voltage input terminal of the boost circuit 114 is B+, which is connected to the charging circuit 112 and the main control circuit 120;
  • the boost circuit 114 may also include its electrical components, such as resistors R1, R2, R3, capacitors C1 and C3, inductor L1, etc. in FIG. 8, so as to jointly realize the boosting function of the power supply voltage.
  • the voltage-stabilizing circuit 115 may include, for example, a voltage-stabilizing chip U1 , a capacitor C7 and a capacitor C8 .
  • the voltage regulator chip U1 includes an input pin Vin, an output pin Vout and a ground pin GND.
  • the capacitor C7 is connected between the input pin Vin and the ground pin GND, and the capacitor C8 is connected between the output pin Vout and the ground pin GND.
  • the input terminal pin Vin is connected to the voltage output terminal V+ of the boosting circuit 114 , and the output terminal pin Vout is connected to the main control circuit 120 such as the microcontroller U2 .
  • the voltage-stabilizing circuit 115 can also be implemented by using a voltage-stabilizing circuit in the prior art, which is not limited here.
  • the working process of the ultrasonic drive circuit 10 may also be, for example: after the user selects the working mode, the main control circuit 120 such as the microcontroller U2 sends an enable signal to the booster chip U4 of the booster circuit.
  • the voltage enable pin is used to boost the voltage from the battery input through the battery interface 113 for the first time and output the boosted voltage to the voltage conversion circuit 140, and then the output frequency of pin P17 of U2 ranges from 24.5 to 25.5
  • a drive signal with a KHz duty cycle of 37% ⁇ 2%, such as a PWM signal is sent to the drive switch circuit 130 for the drive switch circuit 130 to drive the voltage of the transformer T1 of the voltage conversion circuit 140 to be boosted by the power supply circuit 110 for the first time.
  • the target driving voltage is boosted again, the range of the target driving voltage is 2.7 ⁇ 4.2V V, and the obtained target driving voltage is outputted through the drive signal output interface 150 to output the ultrasonic cutter head to drive the ultrasonic cutter head to realize ultrasonic vibration.
  • the aforementioned ultrasonic driving circuit may also be used in an ultrasonic washing machine, an ultrasonic glasses cleaning tank, or other devices.
  • the ultrasonic cleaning equipment and other equipment are also provided with an ultrasonic transducer connected to the ultrasonic driving circuit.
  • the main control circuit in the ultrasonic drive circuit is used to output a drive signal of a target frequency and a target duty cycle to the drive switch circuit, and the drive switch circuit drives the drive switch circuit according to the drive signal output by the main control circuit
  • the voltage conversion circuit performs voltage conversion on the power supply voltage provided by the power supply circuit to obtain a target driving voltage, and the voltage conversion circuit outputs the target driving voltage to the ultrasonic transducer through the driving signal output interface for the
  • the ultrasonic transducer converts the target driving voltage into ultrasonic output, and finally realizes the cleaning function through ultrasonic waves; wherein, the range of the target frequency is 24.5-25.5KHz, and the range of the target duty cycle is 37% ⁇ 2 %; the range of the target driving voltage is 2.7-4.2V.
  • the ultrasonic drive circuit 10 provided by the embodiment of the present application outputs the drive signal of the target frequency and the target duty cycle to the drive switch circuit 130 through the main control circuit 120 , and the drive switch circuit 130 outputs the drive signal according to the main control circuit 120 .
  • the control voltage conversion circuit 140 performs voltage conversion on the power supply voltage provided by the power supply circuit 110 to obtain the target driving voltage, and outputs the obtained target driving voltage through the driving signal output interface 150 to the ultrasonic tool head to drive the ultrasonic tool head to vibrate, and achieve The mute effect is improved, and the product quality and user experience are improved.
  • the multi-functional combination mode of ion import, export function and ultrasonic vibration is realized, which provides users with more choices, improves the user experience and improves the application scope of the product.
  • the power supply voltage input from the battery can be boosted twice, which is beneficial to achieve better control of the voltage required for ultrasonic vibration.

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Abstract

本申请实施例公开了的一种用于铲皮机的超声波驱动电路，包括: 电源电路; 主控电路，电连接电源电路; 驱动开关电路，电连接主控电路和电源电路; 电压转换电路，电连接电源电路和驱动开关电路; 驱动信号输出接口，电连接电压转换电路; 其中，电源电路用于提供电源电压，主控电路用于输出目标频率、目标占空比的驱动信号至驱动开关电路，驱动开关电路根据主控电路输出的驱动信号控制电压转换电路对电源电路提供的电源电压进行电压转换得到目标驱动电压，电压转换电路通过驱动信号输出接口将目标驱动电压输出至超声波刀头，以驱动超声波刀头振动。

Description

超声波驱动电路 技术领域
本申请涉及超声波技术领域，具体而言，涉及一种超声波驱动电路。
背景技术
现今人们经常采用铲皮机等设备去除皮肤上的老化角质以及用于提拉皮肤。典型地，铲皮机通常包括超声波驱动电路和超声波刀头，现有的超声波驱动电路通过输出一定频率的驱动信号，从而驱动铲头产生高频振动，通过调整驱动信号的频率来调整铲头的震动强弱。然而，在使用过程中，振动的铲皮机的静音效果差，严重影响了用户体验。
发明内容
针对上述相关技术中的至少部分缺陷和不足，本申请实施例提出了一种超声波驱动电路，以提升铲皮机的静音效果，提升用户体验度。
一方面，本申请实施例提出的一种超声波驱动电路，用于铲皮机，所述超声波驱动电路包括：电源电路；主控电路，包括微控制器、电容和蜂鸣器，所述微控制器通过所述电容电连接所述蜂鸣器，所述微控制器还电连接所述电源电路；驱动开关电路，电连接所述微控制器和所述电源电路；电压转换电路，包括初级线圈和次级线圈，所述初级线圈的两端分别电连接所述电源电路和所述驱动开关电路；驱动信号输出接口，电连接所述电压转换电路的所述次级线圈；开关电路，电连接所述电源电路和所述微控制器；以及离子运动控制电路，电连接所述微控制器、所述电源电路和所述驱动信号输出接口；其中，所述驱动开关电路包括：场效应晶体管、第一电阻、第二电阻、第三电阻和第四电阻，其中所述场效应晶体管包括源极、栅极和漏极，所述源极通过所述第一电阻接地，所述栅极通过所述第二电阻电连接所述微控制器，所述漏极电连接所述电压转换电路的所述初级线圈的一端；所述场效应晶体管还通过第三电阻电连接所述微控制器，所述场效应晶体管还通过第四电阻、所述第二电阻电连接所述微控制器；其中，所述微控制器用于输出目标频率、目标占空比的驱动信号至所述场效应晶体管，所述场效应晶体管根据所述主控电路输出的所述驱动信号控制所述电压转换电路对所述电源电路提供的电源电压进行电压转换得到目标驱动电压，所述电压转换 电路通过所述驱动信号输出接口将所述目标驱动电压输出至所述铲皮机的超声波刀头，以驱动所述超声波刀头振动，其中所述目标频率的范围为24.5～25.5KHz，所述目标占空比的范围为37％±2％，所述目标驱动电压的范围为2.7～4.2V。
另一方面，本申请实施例提出的一种超声波驱动电路，用于铲皮机，所述超声波驱动电路包括：电源电路；主控电路，电连接所述电源电路；驱动开关电路，电连接所述主控电路和所述电源电路；电压转换电路，电连接所述电源电路和所述驱动开关电路；驱动信号输出接口，电连接所述电压转换电路；其中，所述电源电路用于提供电源电压，所述主控电路用于输出目标频率、目标占空比的驱动信号至所述驱动开关电路，所述驱动开关电路根据所述主控电路输出的所述驱动信号控制所述电压转换电路对所述电源电路提供的所述电源电压进行电压转换得到目标驱动电压，所述电压转换电路通过所述驱动信号输出接口将所述目标驱动电压输出至所述铲皮机的超声波刀头，以驱动所述超声波刀头振动。
在本申请的一个实施例中，所述目标频率的范围为24.5～25.5KHz，所述目标占空比的范围为37％±2％；所述目标驱动电压的范围为2.7～4.2V。
在本申请的一个实施例中，所述主控电路包括微控制器，所述微控制器电连接所述电源电路和所述驱动开关电路。
在本申请的一个实施例中，所述驱动开关电路包括：场效应晶体管、第一电阻、第二电阻、第三电阻和第四电阻，其中所述场效应晶体管包括源极、栅极和漏极，所述源极通过所述第一电阻接地，所述栅极通过所述第二电阻电连接所述主控电路，所述漏极电连接所述电压转换电路；所述场效应晶体管还通过第三电阻电连接所述主控电路，所述场效应晶体管还通过第四电阻、所述第二电阻电连接所述主控电路。
在本申请的一个实施例中，所述电压转换电路包括初级线圈和次级线圈，所述初级线圈电连接所述驱动开关电路和所述电源电路，所述次级线圈电连接所述驱动信号输出接口。
在本申请的一个实施例中，所述超声波驱动电路还包括离子运动控制电路，所述离子运动控制电路包括：第五电阻、第六电阻、第七电阻、第八电阻、第九电阻、第十电阻、第十一电阻、第十二电阻、第十三电阻、第一晶体三极管、第二晶体三极管、 第三晶体三极管、第四晶体三极管、用于电连接手柄导电条的手柄导电条连接接口以及用于电连接铲刀金属片的铲刀金属片连接接口，其中，所述第一晶体三极管的基极通过所述第五电阻电连接所述主控电路，所述第一晶体三极管的发射极接地，所述第一晶体三极管的集电极通过所述第六电阻电连接所述铲刀金属片连接接口，所述驱动信号输出接口还电连接在所述第六电阻和所述铲刀金属片连接接口之间；所述第二晶体三极管的基极通过所述第七电阻电连接所述主控电路，所述第二晶体三极管的发射极接地，所述第二晶体三极管的集电极通过所述第十三电阻电连接所述手柄导电条连接接口；所述第三晶体三极管的集电极电连接所述第二晶体三极管的所述集电极，所述第三晶体三极管的发射极通过第八电阻电连接所述电源电路，所述第三晶体三极管的基极通过所述第十电阻电连接至所述第四晶体三极管的集电极，所述第九电阻的一端电连接在所述第三晶体三极管的所述基极与所述第十电阻之间，所述第九电阻的另一端电连接在所述第八电阻和所述第四晶体三极管的发射极之间；所述第十一电阻电连接在所述第四晶体三极管的基极和所述发射极之间；所述第十二电阻的一端电连接所述第四晶体三极管的所述基极，所述第十二电阻的另一端电连接在所述第十三电阻和所述第二晶体三极管的所述集电极之间，所述第四晶体三极管的所述集电极还电连接在所述第六电阻和所述第一晶体三极管的集电极之间，其中所述第一晶体三极管和所述第二晶体三极管为NPN型晶体三极管，所述第三晶体三极管和所述第四晶体三极管为PNP型晶体三极管。
在本申请的一个实施例中，所述超声波驱动电路还包括开关控制电路，所述开关控制电路包括控制开关、第一指示灯、第二指示灯、第三指示灯、第十四电阻、第十五电阻以及第十六电阻；其中，所述控制开关的一端通过所述第十四电阻接地，所述控制开关的所述另一端电连接所述主控电路，所述控制开关的所述另一端还通过第二指示灯和第十五电阻电连接所述主控电路和所述电源电路，所述第一指示灯的一端电连接至所述第二指示灯和所述第十五电阻之间，所述第一指示灯的另一端电连接所述主控电路；所述第三指示灯的一端电连接所述第一指示灯的所述另一端，所述第三指示灯的另一端通过所述第十六电阻电连接所述主控电路和所述电源电路。
在本申请的一个实施例中，所述电源电路包括第一接口、充电电路、电池接口、 升压电路和稳压电路，所述第一接口包括用于接入电源的电源引脚组，所述电源引脚组通过所述充电电路电连接所述电池接口和所述升压电路，所述升压电路电连接所述稳压电路、所述主控电路、所述电压转换电路，所述稳压电路电连接所述主控电路。
又一方面，本申请实施例提供的一种超声波驱动电路，包括：电源电路；主控电路，电连接所述电源电路；驱动开关电路，电连接所述主控电路和所述电源电路；电压转换电路，电连接所述电源电路和所述驱动开关电路；驱动信号输出接口，电连接所述电压转换电路；其中，所述主控电路用于输出目标频率、目标占空比的驱动信号至所述驱动开关电路，所述驱动开关电路根据所述主控电路输出的所述驱动信号驱动所述电压转换电路对所述电源电路提供的电源电压进行电压转换得到目标驱动电压，所述电压转换电路通过所述驱动信号输出接口将所述目标驱动电压输出至超声波换能器，以供所述超声波换能器将所述目标驱动电压转换成超声波输出；其中，所述目标频率的范围为24.5～25.5KHz，所述目标占空比的范围为37％±2％；所述目标驱动电压的范围为2.7～4.2V。
本申请上述技术特征可以具有如下一个或多个有益效果：本申请实施例提供的超声波驱动电路通过主控电路输出目标频率、目标占空比的驱动信号至驱动开关电路，驱动开关电路根据主控电路输出的驱动信号控制电压转换电路对电源电路提供的电源电压进行电压转换得到目标驱动电压，并将得到的目标驱动电压通过驱动信号输出接口输出超声波刀头，以驱动所述超声波刀头振动，从而达到了静音效果，提升了产品质量和用户体验。通过设置离子运动控制电路，实现了离子导入、导出功能与超声波振动的多功能组合模式，为用户提供了更多的选择，提升了用户体验和，也提升了产品的应用范围。通过在电源电路中设置升压电路，可以对从电池输入的电源电压进行两次升压，有利于实现对超声波振动所需要的电压的更好控制。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。
图1为本申请实施例提供的超声波驱动电路的一种电路示意图。
图2为图1中的主控电路、驱动开关电路以及电压转换电路的连接关系示意图。
图3为本申请实施例提供的超声波驱动电路的另一种电路示意图。
图4为图3中的离子运动控制电路的电路示意图。
图5为图3中的开关控制电路的电路示意图。
图6为图1中的电源电路的结构示意图。
图7为图6中的第一接口、充电电路以及电池接口的连接关系示意图。
图8为图6中的升压电路的电路示意图。
图9为图6中的稳压电路的电路示意图。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来说明本申请。
为了使本领域普通技术人员更好地理解本申请的技术方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应当理解这样使用的术语在适当情况下可以互换，以便这里描述的本申请实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其他步骤或单元。
还需要说明的是，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
还需要说明的是，本申请中多个实施例的划分仅是为了描述的方便，不应构成特别的限定，各实施例中的特征在不矛盾的情况下可以相结合，相互引用。
参见图1，本申请实施例提出了一种超声波驱动电路。本申请实施例中的超声波驱动电路可例如适用于铲皮机等美容设备上，也可以用于其它采用超声波驱动的设备，例如超声波清洗设备等。铲皮机例如包括超声波驱动电路和连接超声波驱动电路的超声波刀头。超声波驱动电路用于产生目标频率、目标占空比以及根据目标频率、目标占空比产生目标驱动电压的驱动信号，以驱动与所述超声波驱动电路连接的超声波刀头发生振动，最终去除使用者的皮肤上的老化角质等，以清洁皮肤。
具体地，如图1所示，本申请实施例提出的超声波驱动电路10例如包括：电源电路110、主控电路120、驱动开关电路130、电压转换电路140以及确定性输出接口150。其中，主控电路120电连接所述电源电路110；驱动开关电路130电连接所述主控电路120和所述电源电路110；电压转换电路140电连接所述电源电路110和所述驱动开关电路130；驱动信号输出接口150电连接所述电压转换电路140，以用于驱动铲皮机的超声波刀头。其中，所述电源电路110用于提供电源电压，所述主控电路120用于输出目标频率、目标占空比的驱动信号例如脉冲信号至所述驱动开关电路130，所述驱动开关电路130根据所述主控电路120输出的所述驱动信号例如脉冲信号控制所述电压转换电路140对所述电源电路110提供的所述电源电压进行电压转换得到目标驱动电压，所述电压转换电路140通过所述驱动信号输出接口150将所述目标驱动电压输出超声波刀头，以驱动所述超声波刀头振动。
具体地，电源电路110用于向超声波驱动电路10整个电路提供电源。电源电路110可例如采用现有技术中成熟的电源技术。主控电路120用于输出频率范围为24.5～25.5KHz、占空比为37％±2％的驱动信号，所述驱动信号可例如为脉冲信号。驱动开关电路130用于根据主控电路120输出的脉冲信号控制电压转换电路140对电源电路110提供的电源电压进行电压转换例如升压操作，并将转换得到目标驱动电压通过驱动信号输出接口150输出，以用于驱动所述超声波刀头；其中所述目标驱动电压的电压范围为2.7～4.2V。
本申请实施例提供的超声波驱动电路10通过主控电路120输出目标频率、目标占空比的驱动信号至驱动开关电路130，驱动开关电路130根据主控电路120输出的驱动信号控制电压转换电路140对电源电路110提供的电源电压进行电压转换得到目标 驱动电压，并将得到的目标驱动电压通过驱动信号输出接口150输出超声波刀头，以驱动所述超声波刀头振动，且达到了静音效果，提升了产品质量和用户体验。
进一步地，如图2所示，所述主控电路120包括微控制器U2，所述微控制器U2电连接所述电源电路110和所述驱动开关电路130。微控制器U2可例如为MCU，用于产生、并通过其引脚P17(见图2)输出频率范围为24.5～25.5KHz、占空比的范围为37％±2％的驱动信号至驱动开关电路130。此外，如图2所示，所述主控电路120还可以包括蜂鸣器BZ和电容C5，所述微控制器U2通过所述电容C5电连接所述蜂鸣器BZ的一端，所述蜂鸣器BZ的另一端接地。
再者，如图2所示，所述驱动开关电路130包括：场效应晶体管Q2、电阻R4(对应第一电阻)、电阻R9(对应第二电阻)、电阻R11(对应第三电阻)和电阻R10(对应第四电阻)。所述场效应晶体管Q2例如包括源极S、栅极G和漏极D。所述场效应晶体管Q2的型号可例如为AO4430。
此外，如图2所示，电压转换电路140例如包括变压器T1，所述变压器T1包括初级线圈T12和次级线圈T13。
其中，如图2所示，所述场效应晶体管Q2的源极S通过电阻R4接地，所述栅极G通过电阻R9电连接所述主控电路120例如微控制器U2的引脚P17，所述漏极D电连接所述电压转换电路140的变压器T1的初级线圈T12的一端。所述场效应晶体管Q2还通过电阻R11电连接所述主控电路120例如微控制器U2，所述场效应晶体管Q2还通过电阻R10、电阻R9电连接所述主控电路120例如微控制器U2的引脚P17。另外，如图2所示，所述初级线圈T12的另一端电连接所述电源电路110以获得电源电路110提供的电压V+，所述次级线圈T13的两端分别电连接所述驱动信号输出接口150(也即图2中的CN1)的两个引脚(也即图2中的CN1端子的引脚2和3)。
再者，如图3所示，所述超声波驱动电路10还包括离子运动控制电路160。所述离子运动控制电路160电连接所述主控电路120、所述电源电路110和所述驱动信号输出接口150，以用于控制护肤品中的离子例如钾离子等的导入、以及人体内带电的污垢(也称污垢离子)的导出。
进一步地，如图4所示，所述离子运动控制电路160例如包括：电阻R12(对应 第五电阻)、电阻R18(对应第六电阻)、电阻R19(对应第七电阻)、电阻R20(对应第八电阻)、电阻R14(对应第九电阻)、电阻R13(对应第十电阻)、电阻R15(对应第十一电阻)、电阻R16(对应第十二电阻)、电阻R17(对应第十三电阻)、晶体三极管Q6(对应第一晶体三极管)、晶体三极管Q4(第二晶体三极管)、晶体三极管Q5(对应第三晶体三极管)、晶体三极管Q3(对应第四晶体三极管)、用于电连接手柄导电条M的手柄导电条连接接口CON1以及用于电连接铲刀金属片FA的铲刀金属片连接接口CON3。其中，铲刀金属片FA为设置在所述超声波刀头上的金属片，用于清除皮肤上的污垢；手柄导电条M为设置在所述铲皮机上的导电零件。举例来说，当使用者手握铲皮机对脸部皮肤进行美容时，手掌皮肤接触到手柄导电条M，脸部皮肤接触铲刀金属片FA，如此一来，离子运动控制电路160与、手掌、脸部皮肤形成微电流回路，可实现护肤品内的营养离子的导入、人体内污垢的导出、以及提拉功能等。
具体地，如图4所示，所述晶体三极管Q6的基极通过电阻R12电连接所述主控电路120例如微控制器U2的U2-1引脚，所述晶体三极管Q6的发射极接地，晶体三极管Q6的集电极通过电阻R18电连接铲刀金属片连接接口CON3，所述驱动信号输出接口150还电连接在电阻R18和所述铲刀金属片连接接口CON3之间；所述晶体三极管Q4的基极通过所述电阻R19电连接所述主控电路120例如微控制器U2的引脚U2-3，晶体三极管Q4的发射极接地，晶体三极管Q4的集电极通过电阻R17电连接所述手柄导电条连接接口CON1；晶体三极管Q5的集电极电连接晶体三极管Q4的所述集电极，晶体三极管Q5的发射极通过电阻R20电连接所述电源电路110比如其供电端子V+，晶体三极管Q5的基极通过电阻R13电连接至晶体三极管Q3的集电极，电阻R14的一端电连接在晶体三极管Q5的基极与电阻R13之间，电阻R14的另一端电连接在电阻R20和晶体三极管Q3的发射极之间；电阻R15电连接在晶体三极管Q3的基极和所述发射极之间；电阻R16的一端电连接晶体三极管Q3的基极，电阻R16的另一端电连接在电阻R17和晶体三极管Q4的集电极之间，晶体三极管Q3的所述集电极还电连接在电阻R18和晶体三极管Q4的集电极之间。
更具体地，晶体三极管Q6和晶体三极管Q4为NPN型晶体三极管，晶体三极管 Q5和晶体三极管Q3为PNP型晶体三极管。
离子运动控制电路160的工作原理例如为：当微控制器U2的引脚U2-1输出的电压＝1(或者为高电平)，微控制器U2的引脚U2-3输出的电压＝0(或者为低电平)时，晶体三极管Q6导通，电阻R14和电阻R13组成分压后，拉低晶体三极管Q5的基极的电压，晶体三极管Q5导通，此时电连接手柄导电条M的手柄导电条连接接口CON1的电压为+，电连接铲刀金属片FA的铲刀金属片连接接口CON3的电压为-，此时铲皮机处于离子导入功能，也即将护肤品中的营养离子例如钾离子导入到皮肤内。当引脚U2-3输出的电压＝1(或者为高电平)，引脚U2-1输出的电压＝0(低电平)时，晶体三极管Q4导通，电阻R15和电阻R16组成分压后，拉低晶体三极管Q3的基极的电压，晶体三极管Q3导通，此时电连接手柄导电条M的手柄导电条连接接口CON1的电压为-，电连接铲刀金属片FA的铲刀金属片连接接口CON3的电压为+，此时铲皮机处于离子导出功能，也即将人体内的污垢离子(也称带电污垢)导出到皮肤外以供铲刀金属片FA清洁。
在本申请的其它实施例中，如图3所示，所述超声波驱动电路10还包括开关控制电路170，所述开关控制电路170电连接所述电源电路110和所述主控电路120。开关控制电路170用于铲皮机的功能选择与控制，例如开机、关机、振动+离子导出、振动+离子导入等等。
具体地，如图5所示，所述开关控制电路170例如包括控制开关S1、第一指示灯LD1、第二指示灯LD2、第三指示灯LD3、电阻R5(对应第十四电阻)、电阻R7(对应第十五电阻)以及电阻R8(对应第十六电阻)；其中，所述控制开关S1的一端通过电阻R5接地，所述控制开关S1的另一端电连接所述主控电路120例如微控制器U2的KEY2引脚，所述控制开关S1的所述另一端还通过第二指示灯LD2和电阻R7电连接所述主控电路120比如微控制器U2的LED2引脚和所述电源电路110，所述第一指示灯LD1的一端电连接至所述第二指示灯LD2和所述电阻R7之间，所述第一指示灯LD1的另一端电连接所述主控电路120例如微控制器U2的引脚KEY1引脚；所述第三指示灯LD3的一端电连接所述第一指示灯LD1的所述另一端，所述第三指示灯LD3的另一端通过所述电阻R8电连接所述主控电路120的微控制器U2的引脚LED1 和所述电源电路110。
具体地，开关控制电路170的工作过程例如为：用户长按控制开关S1两秒开机。开机后，铲皮机默认处于第一档工作模式，第一指示灯LD1亮，且超声波驱动电路10连续输出超声波以进行清洁工作，同时主控电路120控制离子运动控制电路160实现正离子导出功能；用户再次按一下控制开关S1，铲皮机转为第二档工作模式，超声波驱动电路10间断输出超声波，且主控电路120控制离子运动控制电路160实现离子导入功能，同时第二指示灯LD2亮；用户再次按一下控制开关S1，铲皮机转为第三档工作模式，超声波驱动电路10间断输出超声波，且主控电路120控制离子运动控制电路160实现离子导入、提拉等功能，同时LD3指示灯亮；用户再次按一下控制开关S1，铲皮机又转入第一档工作模式，第一指示灯LD1亮，超声波驱动电路10连续输出超声波以进行清洁工作，同时主控电路120控制离子运动控制电路160实现正离子导出功能，……，依次循环。用户长按控制开关S1两秒完成关机。此外，当微控制器U2检测到铲皮机处于充电状态时，则强制关机，此时无法开机，此时LD1～LD3三个指示灯慢闪进入充电状态。当铲皮机充满时LD1～LD3三个指示灯长亮。
在本申请的又一具体实施例中，如图6所示，电源电路110可例如包括第一接口111、充电电路112、电池接口113、升压电路114和稳压电路115。所述第一接口111通过所述充电电路112电连接所述电池接口113和所述升压电路114，所述升压电路114电连接所述稳压电路115、所述主控电路120、所述电压转换电路140，所述稳压电路115电连接所述主控电路120，所述充电电路112还连接所述主控电路120和所述开关控制电路170。
具体地，如图7所示，第一接口111(也即图7中的INUSB)可例如为USB接口，其包括电源引脚组比如VBUS引脚、甚至AGND引脚，可用于接入电源。电源引脚组通过充电电路112连接电池接口113和升压电路114。
充电电路112例如包括电源管理芯片U3，电源管理芯片U3的型号可例如为TP4057。电源管理芯片U3的VCC引脚连接第一接口111(也即图7中的INUSB)的VBUS引脚，以获取电源。电源管理芯片U3的STDBY引脚通过电阻R04连接微控制器U2的LED1引脚。电源管理芯片U3的CHRG引脚通过电阻R05连接微控制器U2 的LED2引脚。电源管理芯片U3的BAT引脚为电压输出引脚，其连接电池接口113(也即图7中的CON2接口)，电池接口113用于连接铲皮机的电池例如蓄电池等，以供存储电能。充电电路112还例如包括其它电气元件例如电容C01和C02、电阻R02等共同实现电池充电功能。充电电路112也可以采用现有技术中的其它充电电路来实现，本申请不以此为限。
此外，如图7所示，所述第一接口111还包括数据写入引脚组比如引脚D-和引脚D+，其电连接所述主控电路120，比如引脚D-连接微控制器U2的引脚ISPDAT，引脚D+连接微控制器U2的硬件ISPCK，以用于向所述主控电路120的微控制器U2写入数据，实现微控制器U2的程序烧录和调试仿真。
进一步地，如图7所示，所述的超声波驱动电路10还包括所述第二接口ISP，所述第二接口ISP电连接在所述主控电路120和所述第一接口111之间，以用于向所述主控电路写入数据。具体地，第二接口ISP的一个引脚连接在第一接口111的引脚D-和微控制器U2的引脚ISPDAT之间，第二接口ISP的另一个引脚连接在第一接口111的引脚D+和微控制器U2的引脚ISPCK之间，也可以通过第二接口ISP向微控制器U2写入数据，以实现微控制器U2的程序烧录和调试仿真。如此一来，用户可以通过第一接口111或第二接口ISP实现微控制器U2的程序烧录和调试仿真。
此外，如图8所示，升压电路114例如包括升压芯片U4。升压芯片例如为MT3608芯片，其可对直流电源电压进行升压。升压电路114的电压输入端为B+，连接充电电路112、主控电路120；其电压输出端为V+，连接电压转换电路140、离子运动控制电路160和稳压电路115。当然，升压电路114还可以包括其电气元件，例如图8中的电阻R1、R2、R3、电容C1和C3、电感L1等等，以共同实现电源电压的升压功能，其也可以采用现有技术中的升压电路方案来实现，此处不以此为限。
再者，如图9所示，稳压电路115可例如包括稳压芯片U1、电容C7和电容C8。稳压芯片U1包括输入端引脚Vin、输出端引脚Vout以及接地端引脚GND。电容C7连接在输入端引脚Vin和接地端引脚GND之间，电容C8连接在输出端引脚Vout和接地端引脚GND之间。输入端引脚Vin连接升压电路114的电压输出端V+，输出端引脚Vout连接主控电路120例如微控制器U2。当然，稳压电路115也可以采用现有 技术中的稳压电路来实现，此处不以此为限。
本申请其它实施例提供的超声波驱动电路10的工作过程还可以例如为：当用户选择工作模式后，主控电路120例如微控制器U2发出使能信号至升压电路的升压芯片U4的升压使能引脚，将通过电池接口113输入的来自于电池的电压进行第一次升压并将升压后电压输出至电压转换电路140，然后U2的引脚P17输出频率范围为24.5～25.5KHz、占空比为37％±2％的驱动信号例如PWM信号至驱动开关电路130，以供驱动开关电路130驱动电压转换电路140的变压器T1将经过电源电路110第一次升压后的电压再次升压得到目标驱动电压，所述目标驱动电压的范围为2.7～4.2V V，并将得到的目标驱动电压通过驱动信号输出接口150输出超声波刀头，以驱动超声波刀头实现超声振动。
此外，在本申请的其它实施例中，前述的超声波驱动电路，还可以用于超声波洗衣机、超声波眼镜清洗槽或其它设备。具体地，超声波清洗设备等设备上除了包括前述的超声波驱动电路，还设置有连接超声波驱动电路的超声波换能器。超声波驱动电路中的所述主控电路用于输出目标频率、目标占空比的驱动信号至所述驱动开关电路，所述驱动开关电路根据所述主控电路输出的所述驱动信号驱动所述电压转换电路对所述电源电路提供的电源电压进行电压转换得到目标驱动电压，所述电压转换电路通过所述驱动信号输出接口将所述目标驱动电压输出至所述超声波换能器，以供所述超声波换能器将所述目标驱动电压转换成超声波输出，最终通过超声波实现清洗功能；其中，所述目标频率的范围为24.5～25.5KHz，所述目标占空比的范围为37％±2％；所述目标驱动电压的范围为2.7～4.2V。
综上所述，本申请实施例提供的超声波驱动电路10通过主控电路120输出目标频率、目标占空比的驱动信号至驱动开关电路130，驱动开关电路130根据主控电路120输出的驱动信号控制电压转换电路140对电源电路110提供的电源电压进行电压转换得到目标驱动电压，并将得到的目标驱动电压通过驱动信号输出接口150输出超声波刀头，以驱动所述超声波刀头振动，且达到了静音效果，提升了产品质量和用户体验。通过设置离子运动控制电路，实现了离子导入、导出功能与超声波振动的多功能组合模式，为用户提供了更多的选择，提升了用户体验和，也提升了产品的应用范围。通 过在电源电路中设置升压电路，可以对从电池输入的电源电压进行两次升压，有利于实现对超声波振动所需要的电压的更好控制。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的包含范围之内。

Claims (10)

  1. 一种超声波驱动电路，用于铲皮机，其中，所述超声波驱动电路包括：
    电源电路；
    主控电路，包括微控制器、电容和蜂鸣器，所述微控制器通过所述电容电连接所述蜂鸣器，所述微控制器还电连接所述电源电路；
    驱动开关电路，电连接所述微控制器和所述电源电路；
    电压转换电路，包括初级线圈和次级线圈，所述初级线圈的两端分别电连接所述电源电路和所述驱动开关电路；
    驱动信号输出接口，电连接所述电压转换电路的所述次级线圈；
    开关电路，电连接所述电源电路和所述微控制器；以及
    离子运动控制电路，电连接所述微控制器、所述电源电路和所述驱动信号输出接口；
    其中，所述驱动开关电路包括：场效应晶体管、第一电阻、第二电阻、第三电阻和第四电阻，其中所述场效应晶体管包括源极、栅极和漏极，所述源极通过所述第一电阻接地，所述栅极通过所述第二电阻电连接所述微控制器，所述漏极电连接所述电压转换电路的所述初级线圈的一端；所述场效应晶体管还通过第三电阻电连接所述微控制器，所述场效应晶体管还通过第四电阻、所述第二电阻电连接所述微控制器；
    其中，所述微控制器用于输出目标频率、目标占空比的驱动信号至所述场效应晶体管，所述场效应晶体管根据所述主控电路输出的所述驱动信号控制所述电压转换电路对所述电源电路提供的电源电压进行电压转换得到目标驱动电压，所述电压转换电路通过所述驱动信号输出接口将所述目标驱动电压输出至所述铲皮机的超声波刀头，以驱动所述超声波刀头振动，其中所述目标频率的范围为24.5～25.5KHz，所述目标占空比的范围为37％±2％，所述目标驱动电压的范围为2.7～4.2V。
  2. 一种超声波驱动电路，用于铲皮机，其中，所述超声波驱动电路包括：
    电源电路；
    主控电路，电连接所述电源电路；
    驱动开关电路，电连接所述主控电路和所述电源电路；
    电压转换电路，电连接所述电源电路和所述驱动开关电路；
    驱动信号输出接口，电连接所述电压转换电路；
    其中，所述电源电路用于提供电源电压，所述主控电路用于输出目标频率、目标占空比的驱动信号至所述驱动开关电路，所述驱动开关电路根据所述主控电路输出的所述驱动信号控制所述电压转换电路对所述电源电路提供的所述电源电压进行电压转换得到目标驱动电压，所述电压转换电路通过所述驱动信号输出接口将所述目标驱动电压输出至所述铲皮机的超声波刀头，以驱动所述超声波刀头振动。
  3. 根据权利要求2所述的超声波驱动电路，其中，所述目标频率的范围为24.5～25.5KHz，所述目标占空比的范围为37％±2％；所述目标驱动电压的范围为2.7～4.2V。
  4. 根据权利要求2所述的超声波驱动电路，其中，所述主控电路包括微控制器，所述微控制器电连接所述电源电路和所述驱动开关电路。
  5. 根据权利要求2所述的超声波驱动电路，其中，所述驱动开关电路包括：场效应晶体管、第一电阻、第二电阻、第三电阻和第四电阻，其中所述场效应晶体管包括源极、栅极和漏极，所述源极通过所述第一电阻接地，所述栅极通过所述第二电阻电连接所述主控电路，所述漏极电连接所述电压转换电路；所述场效应晶体管还通过第三电阻电连接所述主控电路，所述场效应晶体管还通过第四电阻、所述第二电阻电连接所述主控电路。
  6. 根据权利要求2所述的超声波驱动电路，其中，所述电压转换电路包括变压器，所述变压器包括初级线圈和次级线圈，所述初级线圈电连接所述驱动开关电路和所述电源电路，所述次级线圈电连接所述驱动信号输出接口。
  7. 根据权利要求2所述的超声波驱动电路，其中，所述超声波驱动电路还包括离子运动控制电路，所述离子运动控制电路包括：第五电阻、第六电阻、第七电阻、第八电阻、第九电阻、第十电阻、第十一电阻、第十二电阻、第十三电阻、第一晶体三极管、第二晶体三极管、第三晶体三极管、第四晶体三极管、用于电连接手柄导电条的手柄导电条连接接口以及用于电连接铲刀金属片的铲刀金属片连接接口，其中，所述第一晶体三极管的基极通过所述第五电阻电连接所述主控电路，所述第一晶体三极管的发射极接地，所述第一晶体三极管的集电极通过所述第六电阻电连接所述铲刀金属片连接接口，所述驱动信号输出接口还电连接在所述第六电阻和所述铲刀金属片连接接口之间；所述第二晶体三极管的基极通过所述第七电阻电连接所述主控电路，所述第二晶体三极管的发射极接地，所述第二晶体三极管的集电极通过所述第十三电阻电连接所述手柄导电条连接接口；所述第三晶体三极管的集电极电连接所述第二晶体 三极管的所述集电极，所述第三晶体三极管的发射极通过第八电阻电连接所述电源电路，所述第三晶体三极管的基极通过所述第十电阻电连接至所述第四晶体三极管的集电极，所述第九电阻的一端电连接在所述第三晶体三极管的所述基极与所述第十电阻之间，所述第九电阻的另一端电连接在所述第八电阻和所述第四晶体三极管的发射极之间；所述第十一电阻电连接在所述第四晶体三极管的基极和所述发射极之间；所述第十二电阻的一端电连接所述第四晶体三极管的所述基极，所述第十二电阻的另一端电连接在所述第十三电阻和所述第二晶体三极管的所述集电极之间，所述第四晶体三极管的所述集电极还电连接在所述第六电阻和所述第一晶体三极管的集电极之间；
    其中，所述第一晶体三极管和所述第二晶体三极管为NPN型晶体三极管，所述第三晶体三极管和所述第四晶体三极管为PNP型晶体三极管。
  8. 根据权利要求2所述的超声波驱动电路，其中，所述超声波驱动电路还包括开关控制电路，所述开关控制电路包括控制开关、第一指示灯、第二指示灯、第三指示灯、第十四电阻、第十五电阻以及第十六电阻；其中，所述控制开关的一端通过所述第十四电阻接地，所述控制开关的另一端电连接所述主控电路，所述控制开关的所述另一端还通过第二指示灯和第十五电阻电连接所述主控电路和所述电源电路，所述第一显示灯的一端电连接至所述第二指示灯和所述第十五电阻之间，所述第一显示灯的另一端电连接所述主控电路；所述第三显示灯的一端电连接所述第一显示灯的所述另一端，所述第三显示灯的另一端通过所述第十六电阻电连接所述主控电路和所述电源电路。
  9. 根据权利要求2所述的超声波驱动电路，其中，所述电源电路包括第一接口、充电电路、电池接口、升压电路和稳压电路，所述第一接口包括用于接入电源的电源引脚组，所述电源引脚组通过所述充电电路电连接所述电池接口和所述升压电路，所述升压电路电连接所述稳压电路、所述主控电路、所述电压转换电路，所述稳压电路电连接所述主控电路，所述升压电路还电连接所述主控电路和所述开关控制电路。
  10. 一种超声波驱动电路，包括：
    电源电路；
    主控电路，电连接所述电源电路；
    驱动开关电路，电连接所述主控电路和所述电源电路；
    电压转换电路，电连接所述电源电路和所述驱动开关电路；
    驱动信号输出接口，电连接所述电压转换电路；
    其中，所述主控电路用于输出目标频率、目标占空比的驱动信号至所述驱动开关电路，所述驱动开关电路根据所述主控电路输出的所述驱动信号驱动所述电压转换电路对所述电源电路提供的电源电压进行电压转换得到目标驱动电压，所述电压转换电路通过所述驱动信号输出接口将所述目标驱动电压输出至超声波换能器，以供所述超声波换能器将所述目标驱动电压转换成超声波输出；
    其中，所述目标频率的范围为24.5～25.5KHz，所述目标占空比的范围为37％±2％；所述目标驱动电压的范围为2.7～4.2V。
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