南京晨锐腾晶激光科技有限公司
NANJING CRD LASER TECHNOLOGY CO., LTD
◆
The external control signals of CR40C Laser are
accessed through the back panel
BNC connector of the laser.
Pulse width modulation (PWM):
CR40C Laser is controlled laser power by Pulse width modulation (PWM). The
low voltage range should be 0 to 0.5V (laser off), the high voltage, ranges should be
+3.5V to +5V (laser on). Pulse width modulation or PWM, controls laser power by
varying the duty cycle which is supplied by the external controller. The modulation
frequency is 0-20KHZ. The duty cycle is 0-100%.
As following
:
Waveform shown below is a typical 0-5V for PWM signal, duty
cycle (or Pulse width) and frequency is adjustable:
The Preionization Signal:
CR40C have preionization signal, do not need to add preionization signal. If add
preionization signal from the external controller, it may cause laser light leak.
