CONTROL CIRCUIT FOR SINGLE CHIP IC
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United States of America Patent
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Issued Date -
Mar 18, 2010
app pub date -
Nov 7, 2008
filing date -
Sep 17, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A control circuit for a single chip IC controlled by an external power is provided. The control circuit includes a regulating circuit, an MCU and a trigger circuit. The regulating circuit is controlled by the external power and includes a regulator to be enabled to generate an internal power for an internal circuit of the single chip IC. The MCU is controlled by the internal power and generates a switch signal to disable the regulator when the internal circuit of the single chip IC is standby. The trigger circuit is controlled by the external power and generates a trigger signal to enable the regulator based on an external signal.
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