The MC33261 by Motorola is a POWER FACTOR CONTROLLERS. Below is the official datasheet preview.
| Part number | MC33261 |
|---|---|
| Manufacturer | Motorola |
| File Size | 309.03 KB |
| Description | POWER FACTOR CONTROLLERS |
| Datasheet |
 MC33261_Motorola.pdf
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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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