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infinity
Joined: 26 Mar 2002
Posts: 15
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 26 Jul 2004 12:45 current pulse detector |
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I need make circuit for detect current pulses on loop. Loop has voltage source and loop current can be variable (0-1A). Current pulses are superimposed with aproximated value 15mA.
Any idea or inspiration?
Thanks!
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flatulent
Joined: 19 Jul 2002
Posts: 4878
Helped: 295
Location: Middle Earth
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| 26 Jul 2004 16:24 Re: current pulse detector |
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| In general you will have to use a high pass filter to separate the pulse from the background.
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wky
Joined: 23 May 2003
Posts: 164
Helped: 82
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| 31 Jul 2004 12:53 Re: current pulse detector |
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| Try use a current transformer.
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yjkwon57
Joined: 31 Jul 2004
Posts: 221
Helped: 21
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| 01 Aug 2004 23:18 Re: current pulse detector |
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Hi.
When I need to measure a current in a circuit, I insert a resistor of small value in the circuit and read the voltage drop between the inserted resistor
by using the Op Amp. When the voltage at the driving port is important,
I used to use two lines; one is the voltage forcing line and the other is voltage sensing line. This method is widely used in the measurement equipments.
I wish this reply to be some idea to solve your problem.
Bye~~~
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Beetroots
Joined: 12 Dec 2001
Posts: 152
Helped: 2
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| 02 Aug 2004 0:14 Re: current pulse detector |
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| Use a rogowski coil.
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