Control method and control system of pulse width modulation (PWM) signals and numerical control laser processing machine tool
A PWM signal and control method technology, applied in digital control, manufacturing tools, laser welding equipment, etc., can solve the problems of PWM signal change speed lag, long processing time, inaccurate cutting, etc., to achieve real-time change and shorten delay , to avoid the effect of hysteresis
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[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0024] In the embodiment of the present invention, the CNC system directly controls the PWM unit to change the pulse signal frequency and duty cycle, which greatly shortens the delay of the pulse signal and makes laser cutting more accurate.
[0025] figure 1 The implementation flow of the PWM signal control method provided by the first embodiment of the present invention is shown, and for the convenience of description, only the parts related to the present invention are shown.
[0026] As an embodiment of the present invention, the PWM signal control method includes the following steps:
[0027...
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