Duty Cycle/PWM Measurement

To calculate the Duty cycle of a PWM signal, select Duty cycle/PWM in the drop-down box:

Also, set the CAN ID where The K Box will transmit the result.

Set the Rate you wish to measure at:

Select the edge you wish to start measuring the duty cycle on.

oraccording to whether the modulation is on the rising or falling edge:

Pulse Wave Modulation examples:

e.g. 1) Modulation on the falling edge:

Correctly Configured	Incorrectly configured
0.25 = P / T	0.75 = P / T (Measured “T” is affected by modulation. This is incorrect)

e.g. 2) Modulation on the rising edge:

Incorrectly configured	Correctly configured
0.75 = P / T (Measured “T” is affected by modulation. This is incorrect)	0.25 = P / T

Notes:

• The K-Box will change the CAN message Rate for this measurement to prevent CAN bus overloading.