发明名称 |
Multiple supply-voltage power-up/down detectors |
摘要 |
A multiple supply voltage device includes an input/output (I/O) network operative at a first supply voltage, a core network coupled to the I/O network and operative at a second supply voltage, and a power-on-control (POC) network coupled to the I/O network and the core network. The POC network is configured to transmit a POC signal to the I/O network and includes an adjustable current power up/down detector configured to detect a power state of the core network. The POC network also includes processing circuitry coupled to the adjustable current power up/down detector and configured to process the power state into the POC signal, and one or more feedback circuits. For reducing the leakage current while also improving the power-up/down detection speed, the feedback circuit(s) are coupled to the adjustable current power up/down detector and configured to provide feedback signals to adjust a current capacity of the adjustable current power up/down detector. |
申请公布号 |
US8063674(B2) |
申请公布日期 |
2011.11.22 |
申请号 |
US20090365559 |
申请日期 |
2009.02.04 |
申请人 |
KWON CHANG KI;MOHAN VIVEK;QUALCOMM INCORPORATED |
发明人 |
KWON CHANG KI;MOHAN VIVEK |
分类号 |
H03L7/00;H03K5/153;H03K19/094;H03L5/00 |
主分类号 |
H03L7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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