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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: "keeping the current wave-form properly in place relative to the voltage one" posted by Russ57 on June 25, 2004 at 05:59:42:
If you apply the voltage to an inductor, when you remove the power you will get the back emf in hundred of volts, so when you switch off the big inductive load it will dump big voltage spike back into the power line that is why they install a snubber cirsuit across the switch that is used for turning on and off the inductive load. It is no secret of the RG demonstrating the light bulb trick. If you measure the capacitance of the GR unit beween the ground pin and thw hot and neutral you will read about 0.001 uf which what is actually doing the filtering due to the stray capacitance of the tranformer. Just remember one thing, high frequency see inductor as a high resistance so if you want to filter out high frequency you put it in series, you put capacitor in pararell with the load to filter out high frequency.
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Follow Ups
- Re: "keeping the current wave-form properly in place relative to the voltage one" - budm 17:10:40 06/25/04 (0)
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