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explorick
Joined: 14 Jun 2006
Posts: 28
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 04 Oct 2008 15:11 voltage monitoring |
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| Can anyone suggest me a low cost solution with high precision for monitoring a differential voltage of around 500V.
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erikl
Joined: 09 Sep 2008
Posts: 20
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| 05 Oct 2008 23:11 voltage monitoring |
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I'd guess a 10$ (or less) DVM will do the job.
Higher precision - more expensive DVM.
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explorick
Joined: 14 Jun 2006
Posts: 28
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| 06 Oct 2008 11:02 Re: voltage monitoring |
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| Thanks for your input. Could you please let me know how a DVM can accept 1000V while ICs operate in a voltage much less than that voltage. Is there any resistor divider used inside a DVM for measuring higher voltages?
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erikl
Joined: 09 Sep 2008
Posts: 20
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| 06 Oct 2008 11:18 Re: voltage monitoring |
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| explorick wrote: |
| Thanks for your input. Could you please let me know how a DVM can accept 1000V while ICs operate in a voltage much less than that voltage. Is there any resistor divider used inside a DVM for measuring higher voltages? |
Exactly! E.g. 999MOhms : 1MOhm
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