POWER CONVERTER
A power converter, and more particularly a switched AC/DC converter provided with input current shaping (ICS) function is disclosed. The ICS function is carried out by adjusting the conducting angle of the input current for the rectifier in virtue of the central tap of the main transformer, and a hi...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A power converter, and more particularly a switched AC/DC converter provided with input current shaping (ICS) function is disclosed. The ICS function is carried out by adjusting the conducting angle of the input current for the rectifier in virtue of the central tap of the main transformer, and a higher power factor can be obtained. Owing to the action of the ICS, the ripples on the feedback signal are usually larger. The present invention uses the ripples to modulate the switching frequency to effectively disperse and planarize the electromagnetic energy distribution of the power supply, and obviate the electromagnetic interference deficiency of the power supply. |
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