发明名称 |
Power control apparatus and method |
摘要 |
A power control apparatus for controlling a supply voltage for an associated circuit comprises a power input for receiving an input voltage and a power output for supplying the supply voltage to the circuit. A switch device is provided with a first terminal coupled to the power input, a second terminal coupled to the power output and a control terminal for receiving a sleep select signal. A control device selectively configures the switch device to act as either a power gating switch, in which the switch device is responsive to the sleep select signal to select whether or not to supply the input voltage to the power output; or a retention switch in which a voltage difference is formed between the power input and the power input and the switch device supplies a retention voltage to the power output, the retention voltage being different to the input voltage. |
申请公布号 |
US2012013319(A1) |
申请公布日期 |
2012.01.19 |
申请号 |
US20100805146 |
申请日期 |
2010.07.14 |
申请人 |
PATIL SANJAY BHAGWAN;FREDERICK, JR. MARLIN WAYNE;GOMEZ VALENTINA;ARM LIMITED |
发明人 |
PATIL SANJAY BHAGWAN;FREDERICK, JR. MARLIN WAYNE;GOMEZ VALENTINA |
分类号 |
G05F1/10 |
主分类号 |
G05F1/10 |
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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