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Sanjib.A
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Power factor correction and THD
Sanjib.A   4/19/2014 4:14:43 AM
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Reading through the article I learned that the power factor correction offered by the new chip is 98% and Total Harmonic Distortion (THD) is less that 18%, which seems good. How are these parameters for the conventional LED driver circuit? Apart from the improvement in reduced flicker and compactness without larger components - inductors and capacitors would give this an advantage over the conventional LED drivers.

_hm
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Needs clarification?
_hm   4/18/2014 6:55:35 PM
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"The IC EL01 rectifies the 230 VAC mains voltage and feeds it to an AC direct driver without the need for smoothing."

Is this correct or should it be DC?

chanj0
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Lower BOM cost
chanj0   4/18/2014 1:44:58 PM
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With fewer components, the logistic is easiler to handle and I suppose the BOM cost can be lower provided that the cost of the IC is not higher than the cost of alternative solution.

DrQuine
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New IC for Driverless LEDs
DrQuine   4/18/2014 1:20:23 PM
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I'm assuming that the technology can easily be modified for domestic US applications using 120 volt AC power (and our slightly higher frequency can only further reduce flicker). This is a great advance since the bulk of electronics currently required for running off the mains makes the packaging, the cost, and heat dissipation significant issues for household replacement light bulbs.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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