MULTI-CHANNEL CURRENT DRIVER
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United States of America Patent
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Issued Date -
May 12, 2011
app pub date -
Nov 12, 2009
filing date -
Nov 12, 2009
priority date (Note) -
Abandoned
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Abstract
A multi-channel current driver is provided. One of the channels includes a channel switch and a memory-type current mirror. A first end of the channel switch receives a reference current. A master current end of the memory-type current mirror is coupled to a second end of the channel switch. Wherein, a slave current end of the memory-type current mirror outputs a driving current according to the reference current when the channel switch provides the reference current to the memory-type current mirror, and the slave current end of the memory-type current mirror holds the driving current when the channel switch stops the reference current.
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