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HARVARD ENGINEERING PLC
| HARVARD ENGINEERING PLC Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20080252228 | Hid Ballast - A method and apparatus are disclosed for providing current to a load. The apparatus includes a full or half bridge switching circuit, including at least one switching element for supplying power to a load when switched on and means for switching a state of the switching element only at a time when a substantially zero voltage is applied across the switching element. | 10-16-2008 |