Ultrasonic system capable of automatically adjusting power

Abstract

The utility model relates to an automatic adjustment power ultrasonic system, including power supply module, co-frequency drive circuit, ultrasonic oscillation circuit and sampling circuit, power supply module includes chip U8, chip U24, diode D6, diode D25 and inductor L8, co-frequency drive circuit includes chip U19, MOS transistor VT37, resistor R106, resistor R110 and resistor R119. The ultrasonic oscillation circuit comprises a triode VT32, a diode D36, a capacitor C125 and a capacitor C133. According to the utility model, the power can be automatically adjusted to a set value range, no special requirement on the transducer exists, the loss of a finished product can be greatly reduced, and meanwhile, the corresponding power adjustment is carried out along with the environment and the heating temperature of the transducer, so that the safety problem caused by overheating is prevented. And the abnormal power of the transducer can be automatically detected, so that the MCU can respond in time. The power output precision can be improved, the loss of finished products is reduced, the quality is improved, and the product safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic control technical field, especially automatic adjustment power ultrasonic system. BACKGROUND

[0002] In traditional ultrasonic applications, the device power is often fixed or needs to be manually adjusted, which not only affects the processing efficiency, but also may cause energy waste or equipment damage. With the rapid development of intelligent technology, the demand for automation and intelligence of ultrasonic equipment is increasing. The automatic adjustment power ultrasonic system emerges as the times require, which can intelligently identify and automatically adjust the output power according to the actual working load and medium characteristics, realizing efficient and safe ultrasonic processing. The introduction of this technology not only improves the work efficiency, but also significantly enhances the adaptability and user friendliness of the equipment, opening up a new way for the wide application of ultrasonic technology.

[0003] The existing ultrasonic system has the technical problem of power fluctuation, resulting in unstable output power, so it needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model provides automatic adjustment power ultrasonic system to solve the problem mentioned in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The application discloses an automatic adjustment power ultrasonic system, which comprises a power module, a same-frequency driving circuit, an ultrasonic oscillation circuit and a sampling circuit, wherein the power module comprises a chip U8, a chip U24, a diode D6, a diode D25 and an inductor L8; the same-frequency driving circuit comprises a chip U19, a MOS transistor VT37, a resistor R106, a resistor R110 and a resistor R119; the ultrasonic oscillation circuit comprises a triode VT32, a diode D36, a capacitor C125 and a capacitor C133; the sampling circuit comprises a resistor R30, a capacitor C31 and a capacitor C32; a pin 8 of the chip U24 is connected with a capacitor C151 and a 5V voltage, the other end of the capacitor C151 is grounded, a pin 3 of the chip U24 is connected with a resistor R37 and a pin 4 of the chip U8, a pin 7 of the chip U24 is connected with a capacitor C78, a capacitor C79, a capacitor C80, a resistor R130 and a negative electrode of the diode D6, a positive electrode of the diode D6 is connected with the diode D25, the other end of the diode D25 is connected with the other end of the capacitor C78, the other end of the capacitor C79, the other end of the capacitor C80, the other end of the resistor R38, a resistor R129 and a ground end, the other end of the resistor R128 is connected with the other end of the resistor R130, a pin 1 of the chip U8 is connected with a capacitor C12, the other end of the capacitor C12 is connected with a pin 8 of the chip U8, a negative electrode of a diode D19 and an inductor L8, the other end of the inductor L8 is connected with a capacitor C26, a capacitor C27, a capacitor C28, a capacitor C113, a capacitor C115 and a resistor R124, the other end of the capacitor C26 is connected with the other end of the capacitor C27, the other end of the capacitor C28, a positive electrode of the diode D19 and a ground end, the other end of the resistor R124 is connected with a drain electrode of a MOS transistor VT34, a source electrode of the MOS transistor VT34 is connected with an inductor L13 and a resistor R112, the other end of the resistor R112 is connected with a resistor R114 and a gate electrode of a MOS transistor VT3, the other end of the inductor L13 is connected with a capacitor C143, a collector electrode of a triode VT32, a capacitor C127 and a transducer, a base electrode of the triode VT32 is connected with a capacitor C128 and a resistor R107 through a capacitor L24, the other end of the resistor R107 is connected with a capacitor C133, a capacitor C125 and a negative electrode of a diode D36, a positive electrode of the diode D36 is connected with an inductor L25, the other end of the inductor L25 is connected with a capacitor C130 and a resistor R106, the other end of the resistor R106 is connected with a resistor R119 and a source electrode of the MOS transistor VT37, the other end of the resistor R119 is connected with a resistor R110 and a base electrode of the MOS transistor VT37, a drain electrode of the MOS transistor VT37 is connected with a capacitor C142 and a 5V voltage, the other end of the resistor R110 is connected with a pin 4 of the chip U19, a base electrode of the MOS transistor VT34 is connected with the other end of the resistor R112 and the resistor R114, the other end of the resistor R114 is connected with a pin 10 of the chip U19, an emitter electrode of the triode VT32 is connected with a capacitor L28, the other end of the capacitor L28 is connected with an inductor L30, the other end of the inductor L30 is connected with a resistor R10, a resistor R11, a resistor R30 and a capacitor C32.The other end of the resistor R30 is connected to a capacitor C31, the other end of the capacitor C31 is connected to the other end of a capacitor C32 and a ground end, and the other end of the resistor R10 is connected to the other end of a resistor R11 and a ground end.

[0007] As a further technical scheme of the utility model, the model of the chip U24 is X9C103S.

[0008] As a further technical scheme of the utility model, the model of the chip U19 is SN7404.

[0009] As a further technical scheme of the utility model, the MOS tube VT36 and the MOS tube VT37 are both P-MOS tubes.

[0010] As a further technical scheme of the utility model, the triode VT32 is an NPN triode.

[0011] In the above technical scheme, the utility model provides technical effects and advantages:

[0012] The utility model can automatically adjust power to a set value range, has no special requirement to the transducer, can greatly reduce finished product loss, simultaneously, also adjusts corresponding power along with the environment and self heating temperature, prevents safety problems caused by overheating, can also realize automatic detection of transducer power abnormality (analyzes sampling voltage, if voltage is too high, then cuts off driving and power supply and enters protection state) so that MCU responds in time. Can improve power output precision, reduce product finished product loss, improve quality, increase product safety. DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the utility model embodiment or prior art, the following will briefly introduce the drawings needed to be used in embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0014] Figure 1 The utility model provides the circuit diagram of automatic adjustment power ultrasonic system design. CONCRETE IMPLEMENTING METHOD

[0015] The technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment, and obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0016] 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 application belongs; the terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the use herein of the terms "and / or" includes a set of one or more associated listed items.

[0017] The utility model provides a kind of as Figure 1The drawing shows, in particular the automatic adjustment power ultrasonic system, including power module, same frequency drive circuit, ultrasonic oscillation circuit and sampling circuit, the power module includes chip U8, chip U24, diode D6, diode D25 and inductance L8, same frequency drive circuit includes chip U19, MOS tube VT37, resistance R106, resistance R110 and resistance R119, ultrasonic oscillation circuit includes triode VT32, diode D36, capacitor C125 and capacitor C133, sampling circuit includes resistance R30, capacitor C31 and capacitor C32, pin 8 of chip U24 is connected with capacitor C151 and 5V voltage, the other end of capacitor C151 is grounded, pin 3 of chip U24 is connected with resistance R37 and pin 4 of chip U8, pin 7 of chip U24 is connected with capacitor C78, capacitor C79, capacitor C80, resistance R130 and negative pole of diode D6, positive pole of diode D6 is connected with diode D25, the other end of diode D25 is connected with the other end of capacitor C78, the other end of capacitor C79, the other end of capacitor C80, the other end of resistance R38, resistance R129 and ground end, the other end of resistance R128 is connected with the other end of resistance R130, pin 1 of chip U8 is connected with capacitor C12, the other end of capacitor C12 is connected with pin 8 of chip U8, negative pole of diode D19 and inductance L8, the other end of inductance L8 is connected with capacitor C26, capacitor C27, capacitor C28, capacitor C113, capacitor C115 and resistance R124, the other end of capacitor C26 is connected with the other end of capacitor C27, the other end of capacitor C28, positive pole of diode D19 and ground end, the other end of resistance R124 is connected with drain of MOS tube VT34, source of MOS tube VT34 is connected with inductance L13 and resistance R112, the other end of resistance R112 is connected with resistance R114 and gate of MOS tube VT3, the other end of inductance L13 is connected with capacitor C143, collector of triode VT32, capacitor C127 and transducer, base of triode VT32 is connected with capacitor C128 and resistance R107 through capacitor L24, the other end of resistance R107 is connected with capacitor C133, capacitor C125 and negative pole of diode D36, positive pole of diode D36 is connected with inductance L25, the other end of inductance L25 is connected with capacitor C130 and resistance R106, the other end of resistance R106 is connected with resistance R119 and source of MOS tube VT37, the other end of resistance R119 is connected with resistance R110 and base of MOS tube VT37, drain of MOS tube VT37 is connected with capacitor C142 and 5V voltage, the other end of resistance R110 is connected with pin 4 of chip U19, base of MOS tube VT34 is connected with the other end of resistance R112 and resistance R114, the other end of resistance R114 is connected with pin 10 of chip U19, emitter of triode VT32 is connected with capacitor L28, the other end of capacitor L28 is connected with inductance L30,The other end of the inductor L30 is connected to the resistor R10, the resistor R11, the resistor R30, and the capacitor C32, the other end of the resistor R30 is connected to the capacitor C31, the other end of the capacitor C31 is connected to the other end of the capacitor C32 and the ground, and the other end of the resistor R10 is connected to the other end of the resistor R11 and the ground.

[0018] The model of the chip U24 is X9C103S. The model of the chip U19 is SN7404. The MOS tube VT36 and the MOS tube VT37 are both P-MOS tubes. The transistor VT32 is an NPN transistor.

[0019] Working principle: power module: the MCU controls the X9C103S digital potentiometer through the control line to realize the adjustable 12V DC power supply, and the output voltage is 5 to 12V. The control source is the sampling voltage collected by the MCU acquisition module 4. According to the sampling voltage, the overall ultrasonic power is controlled to make it work stably within the set output power range.

[0020] Same frequency drive circuit: same frequency drive circuit, ensure that the control signal generated by the MCU has enough driving ability to synchronously drive the ultrasonic oscillation circuit and the power supply. The ultrasonic drive signal and the used power supply work or stop at the same time, which can better realize control (self-excited ultrasonic wave can still use the transducer to oscillate under its noise even if there is no drive signal in the presence of power supply).

[0021] Ultrasonic oscillation circuit: ultrasonic oscillation circuit, three-point self-excitation, only need to provide power and drive signal to work stably at its own frequency, and the frequency after oscillation does not change with temperature.

[0022] Sampling circuit: through the acquisition of load current, it is converted into voltage and provided to the MCU as a reference. According to the conversion result, the power voltage and the control signal PWM are adjusted to realize stable output.

[0023] When the ultrasonic oscillation circuit works stably, its load current is basically fixed, and the current size at the fixed power can be determined by measurement, which is converted into voltage and stored in the MCU in digital form.

[0024] If the overall set output is a certain power, the circuit starts to work. When there is a deviation between the reference voltage collected and the stored value, the MCU modifies the PWM value to adjust the power. If there is still a large deviation, the power supply voltage is adjusted at the same frequency. Under the combination of the two, the overall output power is controlled within the set range.

[0025] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and in no way limiting, the scope of the present application being defined by the claims hereafter rather than the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be comprised in the present application.

[0026] Furthermore, it should be understood that, although the present specification is described according to the embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the present specification as a whole, and the technical solutions in each embodiment are also appropriately combined to form other embodiments which are easily understood by a person skilled in the art.

Claims

1. An automatically adjusted power ultrasonic system, comprising a power module, a same-frequency driving circuit, an ultrasonic oscillation circuit and a sampling circuit, characterized in that, The power module includes chip U8, chip U24, diode D6, diode D25 and inductor L8, the same frequency drive circuit includes chip U19, MOS tube VT37, resistor R106, resistor R110 and resistor R119, ultrasonic wave oscillation circuit includes triode VT32, diode D36, capacitor C125 and capacitor C133, sampling circuit includes resistor R30, capacitor C31 and capacitor C32, pin 8 of chip U24 is connected with capacitor C151 and 5V voltage, the other end of capacitor C151 is grounded, pin 3 of chip U24 is connected with resistor R37 and pin 4 of chip U8, pin 7 of chip U24 is connected with capacitor C78, capacitor C79, capacitor C80, resistor R130 and negative pole of diode D6, positive pole of diode D6 is connected with diode D25, the other end of diode D25 is connected with the other end of capacitor C78, the other end of capacitor C79, the other end of capacitor C80, the other end of resistor R38, resistor R129 and ground end, the other end of resistor R128 is connected with the other end of resistor R130, pin 1 of chip U8 is connected with capacitor C12, the other end of capacitor C12 is connected with pin 8 of chip U8, negative pole of diode D19 and inductor L8, the other end of inductor L8 is connected with capacitor C26, capacitor C27, capacitor C28, capacitor C113, capacitor C115 and resistor R124, the other end of capacitor C26 is connected with the other end of capacitor C27, the other end of capacitor C28, positive pole of diode D19 and ground end, the other end of resistor R124 is connected with drain of MOS tube VT34, source of MOS tube VT34 is connected with inductor L13 and resistor R112, the other end of resistor R112 is connected with resistor R114 and gate of MOS tube VT3, the other end of inductor L13 is connected with capacitor C143, collector of triode VT32, capacitor C127 and transducer, base of triode VT32 is connected with capacitor C128 and resistor R107 through capacitor L24, the other end of resistor R107 is connected with capacitor C133, capacitor C125 and negative pole of diode D36, positive pole of diode D36 is connected with inductor L25, the other end of inductor L25 is connected with capacitor C130 and resistor R106, the other end of resistor R106 is connected with resistor R119 and source of MOS tube VT37, the other end of resistor R119 is connected with resistor R110 and base of MOS tube VT37, drain of MOS tube VT37 is connected with capacitor C142 and 5V voltage, the other end of resistor R110 is connected with pin 4 of chip U19, base of MOS tube VT34 is connected with the other end of resistor R112 and resistor R114, the other end of resistor R114 is connected with pin 10 of chip U19, emitter of triode VT32 is connected with capacitor L28, the other end of capacitor L28 is connected with inductor L30, the other end of inductor L30 is connected with resistor R10, resistor R11, resistor R30 and capacitor C32, the other end of resistor R30 is connected with capacitor C31,The other end of the capacitor C31 is connected to the other end of the capacitor C32 and the ground end, and the other end of the resistor R10 is connected to the other end of the resistor R11 and the ground end.

2. The automatically adjusting power ultrasonic system of claim 1, wherein: The model of the chip U24 is X9C103S.

3. The automatically adjusting power ultrasonic system of claim 1, wherein: The model of the chip U19 is SN7404.

4. The automatically adjusting power ultrasonic system of claim 1, wherein: The MOS tube VT36 and the MOS tube VT37 are both P-MOS tubes.

5. The automatically adjusting power ultrasonic system of claim 1, wherein: The triode VT32 is an NPN triode.

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