Power Controllers with Ultra-High-Voltage Startup
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United States of America Patent
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Issued Date -
Jan 29, 2015
app pub date -
Jul 16, 2014
filing date -
Jul 29, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A power controller in a multi-chip module is disclosed. The power controller comprises a power controller die, an ultra-high voltage startup die, and a multi-chip module. The power controller die is operable to control a power switch when powered by an operation power source. The operation power source has a maximum voltage limit of tens volt. The ultra-high voltage startup die comprises an ultra-high voltage pad tolerable to receiving an input line voltage higher than one hundred volt. During a startup procedure the ultra-high voltage startup die charges the operation power source, and during a normal operation the ultra-high voltage startup die substantially performs an open-circuit. The multi-chip module packages both the power controller die and the ultra-high voltage startup die.
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