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A power converter is an electrical device for converting electrical energy between alternating current (AC) and direct current (DC). It can also change the voltage or frequency of the current. Power converters include simple devices such as transformers, and more complex ones like resonant converters.
WFCO was originally owned by Fairfield Christian Academy, and the station was known as "Fairfield's Christian Outreach". WFCO began 24-hour operations in the early 1990s. In 2002, WFCO moved to downtown Lancaster, added more local and musical programming and became known as "Peaceful 90.9 FM". In 2006, WFCO increased its power to 1,200 watts.
A simple voltage dropper can be used to reduce the voltage for low-power devices; if more than 12V is required, or for high-powered devices, a switched-mode power supply is used. The output will usually be DC in the range 1.5–24 V. Power supplies that output either 100–120 V AC or 210–240 V AC are available; they are called inverters ...
DC-to-DC converters are used in portable electronic devices such as cellular phones and laptop computers, which are supplied with power from batteries primarily. Such electronic devices often contain several sub-circuits, each with its own voltage level requirement different from that supplied by the battery or an external supply (sometimes higher or lower than the supply voltage).
The flyback converter is an isolated power converter. The two prevailing control schemes are voltage mode control and current mode control. In the majority of cases current mode control needs to be dominant for stability during operation. Both modes require a signal related to the output voltage. There are three common ways to generate this ...
Career criminal Rondail Henry was charged with stabbing a teen on a Brooklyn subway train, but Judge Philip Tisne let him go without bail.
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