Digital ultrasonic generator

A technology of ultrasonic waves and generators, which is applied in the field of ultrasonic generators, can solve the problems that ultrasonic generators cannot realize automatic frequency tracking, etc., and achieve the effects of overcoming feedback attempts that are difficult to control, easy to debug, and reliable in work

Inactive Publication Date: 2008-09-24
SHENZHEN AIXCENT AUTOIMMUNIZATION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned defects of the prior art, the present invention solves the problem that the traditional ultrasonic generator can only track manually but cannot realize automatic frequency tracking

Method used

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  • Digital ultrasonic generator
  • Digital ultrasonic generator
  • Digital ultrasonic generator

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Embodiment Construction

[0020] An example of the present invention is figure 2 As shown, it can be seen from the figure that this ultrasonic generator includes a rectification and filtering circuit 201, an inverter unit 203, a matching circuit 204, and a transducer 205 connected in sequence, and also includes a power supply to the inverter circuit 203 The switch tube outputs an oscillation and drive circuit 202 for controlling signals. and figure 1 Compared with the traditional ultrasonic generator shown in , the ultrasonic generator of this embodiment also includes: a single-chip microcomputer control unit 206, a current detection circuit 207 that detects the current input to the rectification filter circuit and outputs a current detection signal to the control unit, The first digital potentiometer 209 is connected with the frequency tracking signal output end of the control unit and outputs the frequency adjustment signal to the oscillation and driving circuit, and the first digital potentiometer...

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Abstract

The invention relates to an ultrasonic generator, which aims at solving the problem that a traditional ultrasonic generator can only achieve manual tracking instead of automatical frequency tracking. The invention provides a digital ultrasonic generator, including a rectification filter circuit, an inverter unit, a matching circuit, a transducer, an oscillation and drive circuit. The digital ultrasonic generator also includes a control unit, a current detection circuit used for detecting the current input to the rectification filter circuit and for outputting current detection signals to the control unit, a first digital potentiometer which is connected with the control unit and outputs power regulating signals to the oscillation and drive circuit, a second digital potentiometer which is connected with the control unit and outputs the power regulating signals to the oscillation and drive circuit, and input keystrokes connected with the control unit. The ultrasonic generator provided by the invention has the advantages of full digitalization, reliability and strong anti-interference ability, more important, the ultrasonic generator is able to automatically find a frequency point which ensures the input current of a half-bridge inverter circuit to reach the maximum.

Description

technical field [0001] The invention relates to an ultrasonic generator, more specifically, to an intelligent, digital ultrasonic generator. Background technique [0002] like figure 1 Shown is a schematic block diagram of a traditional ultrasonic generator, which includes a rectification and filter circuit 101 connected to the 220V mains, which outputs 315V DC to the bridge power amplifier inverter circuit 103; the oscillation and drive circuit 102 supplies the bridge power The power switching tube in the power amplifier inverter circuit 103 outputs control signals; the bridge power amplifier inverter circuit 103 is connected to the transducer 105 through the output matching circuit 104, so that the transducer 105 converts electromagnetic energy into ultrasonic waves. As can be seen from the figure, there is a frequency modulation potentiometer 106 to realize manual frequency adjustment, and a load indicating dial indicator 107 to monitor the working state of the entire ul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/02G05D19/02
Inventor 蔡序锋
Owner SHENZHEN AIXCENT AUTOIMMUNIZATION EQUIP CO LTD
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