PCI-PWM02 Users Manual (Rev 1.4)
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http://www.daqsystem.com
7-1. PWM0 ~ PWM03 Function
(1)
Pulse width
„Read‟ Button
Read current setup PWM value.
(2)
Pulse width
„Write‟ Button
Control each PWM output. The setup value range is 0 ~ 255.
One time variation of the set value is 25 ns.
100% On Duty Cycle - Pulse Width 255
0V
5V
5V
0V
75% On Duty Cycle - Pulse Width 191
50% On Duty Cycle - Pulse Width 127
0V
5V
25% On Duty Cycle - Pulse Width 64
0V
5V
5V
0V
0% On Duty Cycle - Pulse Width 0
(3)
Trigger Delay
„Read‟ Button
Read current setup PWM output delay.
Output Time Delay
Trigger Input
PWM Output
Output Time Period
The figure shows a triggering mode of operation that controls PWM output by an external
trigger. In the trigger operation, the output delay and the output period can be set. Since
each time uses a 22-bit timer in 1uSEC units, it can be set up to 4,194,303uSEC.
