| Part number | MC33261, MC34261 |
|---|---|
| Manufacturer | Motorola |
| File Size | 309.03 KB |
| Description | (MC33261 / MC34261) POWER FACTOR CONTROLLERS |
| Datasheet |
 MC34261_Motorola.pdf
|
| Note |
This datasheet PDF includes multiple part numbers: MC33261, MC34261. Please refer to the document for exact specifications by model. |
Introduction Most electronic ballasts and switching power supplies use a bridge rectifier and a filter capacitor to derive raw dc voltage from the utility ac line.This simple rectifying circuit draws power from the line when the instantaneous ac voltage exceeds the capacitor’s voltage.This occurs near the line voltage peak and results in a high charge current spike.Since power is only taken near the line voltage peaks, the resulting spikes of current are extremely nonsinusoidal with a high co
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