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Gunther_Guss
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- TL;DR Summary
- What result does multimeter show when measuring filtered AC V ? is it Vave or Vrms of the voltage ripple ? And whats the formulas to calculate this ? Thanks.
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DMMs will generally show Vrms on their ACV setting, but as @Borek says it's always best to check the Owner's Manual.Gunther_Guss said:TL;DR Summary: What result does multimeter show when measuring filtered AC V ? is it Vave or Vrms of the voltage ripple ? And whats the formulas to calculate this ? Thanks.
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Borek said:What does the manual say?
I think it measures Vrms cause when i try to measure it by oscilloscope i get the same result as Vrms, but what i wanted to know is that what result does multimeter show when measuring filtered AC V after rectification cause i want to know whats the Vp/Vmax of its wave, oscilloscope only shows it's ripple voltage, even though first mili second after we input the voltage source it'll show us the whole wave or its Vmax. I want to calculate this by only know what the result from the multimeter, thanks.Gunther_Guss said:TL;DR Summary: What result does multimeter show when measuring filtered AC V ? is it Vave or Vrms of the voltage ripple ? And whats the formulas to calculate this ? Thanks.
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You mean, AC component on the buffer cap?Gunther_Guss said:filtered AC V after rectification
Gunther_Guss said:I think it measures Vrms cause when i try to measure it by oscilloscope i get the same result as Vrms, but what i wanted to know is that what result does multimeter show when measuring filtered AC V after rectification cause i want to know whats the Vp/Vmax of its wave, oscilloscope only shows it's ripple voltage, even though first mili second after we input the voltage source it'll show us the whole wave or its Vmax. I want to calculate this by only know what the result from the multimeter, thanks.