Output circuit and method for detecting whether load connected to connection port corresponding to output circuit
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United States of America Patent
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Nov 28, 2017
Issued Date -
N/A
app pub date -
Nov 3, 2015
filing date -
Apr 10, 2015
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Abstract
An output circuit includes a level adjustment circuit and a determination circuit. The output circuit is employed for generating an output to an output terminal of the output circuit, where the output terminal is coupled to a connecting port. The level adjustment circuit is coupled to the output terminal and is employed for generating at least one adjusted signal according to a first voltage signal at the output terminal in a first period and a second voltage signal at the output terminal in a second period. The determination circuit is coupled to the level adjustment circuit and is employed for generating a determination signal according to the at least one adjusted signal, wherein the determination signal indicates whether a load is connected to the connecting port.
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