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Discharge circuit for long-pulse laser

A discharge circuit and laser technology, applied in the field of laser medical treatment, can solve problems such as uncontrollable load voltage waveforms

Active Publication Date: 2014-01-01
SUZHOU GUOKE MEDICAL TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The discharge circuit of the existing long-pulse laser needs a large energy bank in order to maintain the stability of the output, and the waveform of the load voltage is uncontrollable

Method used

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  • Discharge circuit for long-pulse laser
  • Discharge circuit for long-pulse laser
  • Discharge circuit for long-pulse laser

Examples

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Embodiment Construction

[0013] see image 3 As shown, a discharge circuit for a long pulse laser includes a load module 5, the load module 5 is connected to a feedback circuit module 4, and the feedback signal of the feedback circuit module 4 is connected to an inverting input terminal of an operational amplifier 3 , also includes a touch control module 1 and a control circuit module 6, the touch control module 1 gives a reference value, the reference value and the feedback signal are output to the control circuit module 6 through the operational amplifier 3, to control the duty cycle of the chopping pulse, To change the output voltage, the touch control module 1 includes an adjustable potentiometer RW for adjusting its output reference voltage, the touch control module 1 is connected with a voltage given module 2, and the voltage signal of the voltage given module 2 is connected The non-inverting input terminal of the operational amplifier 3, the output terminal of the operational amplifier 3 is con...

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PUM

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Abstract

The invention discloses a discharge circuit for a long-pulse laser, which comprises a load module that is connected with a feedback circuit module; a feedback signal of the feedback circuit module is connected with an inverting input terminal of an operational amplifier; the discharge circuit also comprises a touch control module which is connected with a voltage given module; a voltage signal of the voltage given module is connected with a non-inverting input terminal of the operational amplifier; an output end of the operational amplifier is connected with a control circuit module which is connected with the load module by an insulated gate electrode type power tube switching circuit module used for adjusting the output voltage; and the touch control module comprises an adjustable potentiometer used for adjusting a reference voltage output by the touch control module. The discharge circuit for the long-pulse laser can be used for adjusting the output voltage by controlling the duty cycle of the turn-on time of the insulated gate electrode type power tube switching circuit module.

Description

technical field [0001] The invention belongs to the technical field of laser medical treatment, in particular to a long-pulse laser, and more specifically to a discharge circuit for the long-pulse laser. Background technique [0002] Long-pulse green laser therapeutic instrument is an instrument for treating vascular diseases. It can effectively treat vascular lesions such as red blood streaks, port wine stains, hemangiomas, and spider angiomas. Its further application is to carry out research and treatment of laser treatment of varicose veins in human legs and digestive tracts. The stability of the laser discharge circuit has a great influence on the stability of the laser energy and the therapeutic effect. [0003] The basic discharge circuit of the current laser is as follows: figure 1 Shown: Most common power supplies use natural discharge. During the natural discharge process, the load voltage is equal to the energy storage voltage, and is not controlled. Because the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/09
Inventor 郑陈琪顾华东
Owner SUZHOU GUOKE MEDICAL TECH DEV CO LTD
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