Measuring current with current probe - Electronic Circuits Projects Diagrams Free

naseeam · 19th July 2007, 08:36 PM

Could you please provide me with a detailed procedure for measuring current with a current probe? I believe I should see a AC current waveform on the scope.
My circuit is as follows: ASIC outputs a PWM signal to Analog Current Output(ACO) Driver. I need to measure current through the load tied to the ACO Driver.

I am using Tektronix TDS3014B scope and Tektronix TCP202 current probe. I received error when I tried to attach their manuals. So please use following links to fetch the mauals. Thanks.

http://www2.tek.com/cmswpt/madownloa...es+User+Manual

http://www2.tek.com/cmswpt/madownloa...P202+Reference

Styx · 19th July 2007, 08:58 PM

1) turn scope on
2) plug current probe into scope (it should auto-change termination to 50R as well as append "A" symbol to denote amps)
3) with probe jaws closed & locked and not around anything or near any fields hit the degause button on the side on the probe head (newer ones have an option on the scope menu)
4) clamp around wire you want to sense current
5) initilise yr cct
5a) concider hitting auto-set or manual re-scaling of X/Y axis to find signal

its not that hard

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19th July 2007, 08:36 PM	(permalink)
naseeam	Measuring current with current probe Could you please provide me with a detailed procedure for measuring current with a current probe? I believe I should see a AC current waveform on the scope. My circuit is as follows: ASIC outputs a PWM signal to Analog Current Output(ACO) Driver. I need to measure current through the load tied to the ACO Driver. I am using Tektronix TDS3014B scope and Tektronix TCP202 current probe. I received error when I tried to attach their manuals. So please use following links to fetch the mauals. Thanks. http://www2.tek.com/cmswpt/madownloa...es+User+Manual http://www2.tek.com/cmswpt/madownloa...P202+Reference

19th July 2007, 08:58 PM	(permalink)
Styx	1) turn scope on 2) plug current probe into scope (it should auto-change termination to 50R as well as append "A" symbol to denote amps) 3) with probe jaws closed & locked and not around anything or near any fields hit the degause button on the side on the probe head (newer ones have an option on the scope menu) 4) clamp around wire you want to sense current 5) initilise yr cct 5a) concider hitting auto-set or manual re-scaling of X/Y axis to find signal its not that hard __________________ Nothing is impossible. Once a problem is realised, the rest is just details