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Why are MOVs rated for mains voltages chosen for earth-to-signal protection in PoE PSE applications, as recommended in TI's SLUA818?

The operative phrase in §6.1.2.1 Requirements is, "Surge suppressors that bridge the insulation shall have a minimum rated operating voltage Uop... of Uop = Upeak + ΔUsp + ΔUsa." That means, ...
DrMoishe Pippik's user avatar
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Why am I getting a low output voltage (5.98V instead of 12V) from a LM2623 stepup converter?

The datasheet has this warning (emphasis added): 8.2.2.2 Choosing The Correct C3 Capacitor The C3 capacitor allows for the duty cycle of the internal oscillator to be > programmable. Choosing the ...
Spehro 'speff' Pefhany's user avatar
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Why am I getting a low output voltage (5.98V instead of 12V) from a LM2623 stepup converter?

When laying out the PCB for a DC DC converter, parasitics introduced by the PCB traces can be a problem because it changes the design. Therefore reducing parasitics from the traces and vias will help ...
Voltage Spike's user avatar
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