Long-Line Ir Drop-Voltage Recovery

Posted on Aug 26, 2012

This circuit provides a unique solution to a common system-level power distribution problem: When the su

Long-Line Ir Drop-Voltage Recovery
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pply voltage to a remote board must traverse a long cable, the voltage at the end of the line sometimes drops to unacceptable levels. This + 5-V/ + 5-V converter addresses this by taking the reduced voltage at the end of the supply line and boosting it back to + 5 V. This can be especially useful in remote display devices, such as some point-of-sale (POS) terminals, where several meters of cable could separate the terminal from the readout.

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