DUAL-CHANNEL LOAD SWITCH CIRCUITS, DEVICES INCLUDING A DUAL-CHANNEL LOAD SWITCH CIRCUIT AND METHODS OF SWITCHING LOAD CHANNELS
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United States of America Patent
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Issued Date -
Jul 30, 2009
app pub date -
Jan 30, 2008
filing date -
Jan 30, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A dual-channel load switch circuit may be provided for switching between first and second sources that generate respective input voltages. The circuit may include first and second channels adapted to receive the respective input voltages and to supply respective output voltages to a load element based on the respective input voltages. The first and second channels may each include first and second switching elements and first and second control circuitry. The second channel may include a diode in parallel with the second switching element and may be coupled to the first control circuitry. The circuit may include a reservoir element coupled to the first and second channels and configured to store a potential when one of the first and second channels supplies a respective output voltage to the load element and to apply the potential to the load element when neither output voltage is being supplied to the load element.
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