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Constant Current Regulators Slide 24

This circuit is connected directly to 110 VAC. It consists of a bridge rectifier feeding the CCR and LED string. The high input voltage is offset by the large voltage drop from the 30 LEDs connected in series. The following slide will show scope traces for a 110 VRMS input as well as plus and minus 10% voltage variations.

PTM Published on: 2011-11-03