+ Post New Thread

Results 1 to 20 of 39

- 24th July 2005, 09:39 #1

- Join Date
- Jun 2005
- Posts
- 599
- Helped
- 1 / 1
- Points
- 4,902
- Level
- 16

## duty cycle oscilloscope

When i Display a Period ( one cycle of a waveform ) on the oscilloscope

how do i get 50% duty cycle?

The onc cycle takes up the whole screen on the oscilloscope so thats the

Period of the waveform and how do i get 50% of the duty cycle on the

oscilloscope?

- 24th July 2005, 09:44 #2

- Join Date
- Apr 2005
- Posts
- 880
- Helped
- 127 / 127
- Points
- 17,217
- Level
- 31

## oscilloscope use: duty cycle

try changing the time /div switch.

- 24th July 2005, 09:57 #3

- Join Date
- Jun 2005
- Posts
- 599
- Helped
- 1 / 1
- Points
- 4,902
- Level
- 16

## measure duty cycle with oscilloscope

To display the Period in HALF of the oscillscope screen is that what i have to

do ? to get 50% of the duty cycle of the waveform?

- 24th July 2005, 11:12 #4

- Join Date
- Jan 2000
- Location
- on third flor
- Posts
- 1,603
- Helped
- 239 / 239
- Points
- 12,565
- Level
- 26

## oscilloscope duty cycle

Duty cycle is property of signal and is not depend on oscilloscope settings.

- 24th July 2005, 11:24 #5

- Join Date
- Jun 2005
- Posts
- 599
- Helped
- 1 / 1
- Points
- 4,902
- Level
- 16

## duty cycle in oscilloscope

If i have a waveforms "Period" display on the oscilloscope how do i get it

to display 50% duty cycle of a Period?

Would it be HALF of the display?

- 24th July 2005, 11:24

- 24th July 2005, 11:36 #6

- Join Date
- Jan 2000
- Location
- on third flor
- Posts
- 1,603
- Helped
- 239 / 239
- Points
- 12,565
- Level
- 26

## oscilloscope(duty cycle)

It would not display 50% duty cycle in most cases. You may set T/div to half the value, if possible, to display half of a periode.

- 24th July 2005, 20:31 #7

- Join Date
- Jun 2005
- Posts
- 599
- Helped
- 1 / 1
- Points
- 4,902
- Level
- 16

## fifty percent duty cycle

To display 50% duty cycle of a Period on the oscillscope how do i set this up

or do this?

- 24th July 2005, 20:31

- 24th July 2005, 22:14 #8

- Join Date
- Apr 2002
- Location
- USA
- Posts
- 3,942
- Helped
- 659 / 659
- Points
- 32,456
- Level
- 44

## square wave oscilloscope

"display 50% duty cycle of a Period"

Your words are nonsense. Please rephrase!

- 24th July 2005, 22:14

- 24th July 2005, 22:42 #9

- Join Date
- Aug 2004
- Location
- Cyberspace
- Posts
- 265
- Helped
- 20 / 20
- Points
- 3,453
- Level
- 13

## duty cycle on oscope

Maybe have a look here , about the usage of a scope

http://www.tek.com/Measurement/App_Notes/XYZs/

/Bingo

- 27th July 2005, 06:59 #10

- Join Date
- Jun 2005
- Posts
- 599
- Helped
- 1 / 1
- Points
- 4,902
- Level
- 16

## square wave 20% duty cycle

What does 50% duty cycle look like on a square wave on the oscilloscope?

What does 40% duty cycle look like on a square wave on the oscilloscope?

What does 30% duty cycle look like on a square wave on the oscilloscope?

what does 20% duty cycle look like on a square wave on the oscilloscope?

Is there a duty cycle "Chart" that i could look at?

- 27th July 2005, 07:14 #11

- Join Date
- Jan 2000
- Location
- on third flor
- Posts
- 1,603
- Helped
- 239 / 239
- Points
- 12,565
- Level
- 26

## 555 50 percent duty cicle

They all look good.

- 27th July 2005, 07:36 #12

- Join Date
- Apr 2002
- Location
- USA
- Posts
- 3,942
- Helped
- 659 / 659
- Points
- 32,456
- Level
- 44

## duty cycle on an oscilloscope

Duty cycle is the percentage of time the pulse is high.

A square wave, by definition, has 50% duty cycle. If it isn't 50%, then it isn't a square wave.

Code:_ _ 10% _ _________ _________ __ __ 20% _ ________ ________ ___ ___ 30% _ _______ _______ ____ ____ 40% _ ______ ______ _____ _____ 50% _ _____ _____ square wave ______ ______ 60% _ ____ ____ _______ _______ 70% _ ___ ___ ________ ________ 80% _ __ __ _________ _________ 90% _ _ _

- 27th July 2005, 07:56 #13

- Join Date
- Feb 2004
- Location
- Toilet Seat
- Posts
- 833
- Helped
- 176 / 176
- Points
- 7,253
- Level
- 20

## how do you find the duty cycle on an oscilloscope

Similar answer to your other thread. An oscilloscope displays whatever input signal you give it. It does not modify the signal in any way, including its duty cycle.

- 28th July 2005, 04:47 #14

- Join Date
- Jun 2005
- Posts
- 599
- Helped
- 1 / 1
- Points
- 4,902
- Level
- 16

## duty in oscilloscope

When i hook up a 555 timer clock up to the oscilloscope and i adjust the

duty cycle trimmer on the 555 timer when it displays on the oscilloscope how

do i know the square wave is 50% or 70% duty cycle when im turning the

duty cycle trimmer on the 555 timer to calibrate it to this duty cycle i need

chart to reference me with the oscilloscope

Added after 4 hours 47 minutes:

Thanks Echo47 for the duty cycle chart

duty cycle form 10%-90% how many oscilloscope divisions/cubes are there

when the signal or pulse is high for a

10%?

20%?

30%?

40%?

etc..

I just don't know how many oscilloscope divisions/cubes they are for each of

there duty cycles so i could count the divisions of the high state of the square

wave signal or pulse and know what duty cycle i am on the oscilloscope

- 28th July 2005, 07:53 #15

- Join Date
- Apr 2002
- Location
- USA
- Posts
- 3,942
- Helped
- 659 / 659
- Points
- 32,456
- Level
- 44

## oscilloscope and duty cycles

You sound like a young student. Have you studied Algebra? This is a simple application of ratios and graphs, so you must understand them first.

- 28th July 2005, 08:53 #16

- Join Date
- Feb 2004
- Location
- Toilet Seat
- Posts
- 833
- Helped
- 176 / 176
- Points
- 7,253
- Level
- 20

## 50 dollar oscillascope

Firstly, go figure out how to operate an oscilloscope.

Secondly, go read up on the definition of duty cycles.

- 28th July 2005, 09:37 #17

- Join Date
- Jun 2005
- Posts
- 599
- Helped
- 1 / 1
- Points
- 4,902
- Level
- 16

## oscilloscope on time duty cycle of a square wave

How many division on in a 10% duty cycle?

how many division on in a 20% duty cycle

how many division on in a 30%,40,50,60,etc duty cycle?

- 28th July 2005, 09:50 #18

- Join Date
- Jan 2000
- Location
- on third flor
- Posts
- 1,603
- Helped
- 239 / 239
- Points
- 12,565
- Level
- 26

## duty cycle square wave 90 percent

Are you collecting points this way?

- 28th July 2005, 16:28 #19

- Join Date
- Jun 2005
- Posts
- 599
- Helped
- 1 / 1
- Points
- 4,902
- Level
- 16

## 50 percent duty cycle and wave

Can you please help me figure this out?

- 29th July 2005, 04:15 #20

- Join Date
- Jun 2005
- Posts
- 599
- Helped
- 1 / 1
- Points
- 4,902
- Level
- 16

## definitition of duty cycle

I put my oscilloscope on the output of my 555 timer circuit i see a square wave

on my oscilloscope. I adjust the 555 times circuit duty cycle trim pot but how

do i know what the percent of my duty cycle?

So when im looking at the oscilloscope i can see 20%,30%,40,50,60,70 etc

so i can calibrate my 555 timer to a duty cycle ?

+ Post New Thread

Please login