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walters
Joined: 07 May 2005 Posts: 4
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Posted: Wed Jun 08, 2005 10:36 pm Post subject: Measuring Pulse width modulation PWM |
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How do i measure Pulse width Modulation (PWM) ?
with a oscilloscope?
How do i measure the Duty Cycle of the PWM?
with a oscilloscope?
How do i measure the Pulse width?
with a oscilloscope?
How do i measure the Time constant?
with a oscilloscope?
How do i measure the rise time and fall time?
with a oscilloscope?
how to Measure the Period and frequency of the PWM?
with a oscilloscope? |
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walters
Joined: 07 May 2005 Posts: 4
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Posted: Sat Jun 11, 2005 4:46 pm Post subject: |
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Voltage = distance in cm × volts/cm
Example: peak-peak voltage = 4.2cm × 2V/cm = 8.4V
amplitude (peak voltage) = ½ × peak-peak voltage = 4.2V
Time = distance in cm × time/cm
Example: time period = 4.0cm × 5ms/cm = 20ms
and frequency = 1/time period = 1/20ms = 50Hz
Can your please give me examples from these formulas i need please
1.) Pulse width Modulation PWM?
Pulse widith Modulation= distance in cm X time/cm?
example?
2.) Duty Cycle?
Duty Cycle = distance in cm X time/cm?
example?
3.) Pulse width?
Pulse width = distance in cm X time/cm?
example?
4.) Time constant?
Time constant= distance in cm X time/cm?
example?
5.) Rise time and Fall time?
Rise time= distance in cm X time/cm?
example?
Fall time= distance in cm X time/cm?
example? |
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