发明公开
EP1301982A2 LOW POWER VOLTAGE REGULATOR CIRCUIT FOR USE IN AN INTEGRATED CIRCUIT DEVICE
有权
具有能耗低FOR USE集成电路电压稳压器
- 专利标题： LOW POWER VOLTAGE REGULATOR CIRCUIT FOR USE IN AN INTEGRATED CIRCUIT DEVICE
- 专利标题（中）： 具有能耗低FOR USE集成电路电压稳压器
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申请号： EP01928713.5申请日： 2001-04-20
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公开(公告)号： EP1301982A2公开(公告)日： 2003-04-16
- 发明人: PATHAK, Saroj , PAYNE, James, E. , KUO, Harry, H.
- 申请人： ATMEL CORPORATION
- 申请人地址： 2325 Orchard Parkway San Jose,California 95131 US
- 专利权人： ATMEL CORPORATION
- 当前专利权人： ATMEL CORPORATION
- 当前专利权人地址： 2325 Orchard Parkway San Jose,California 95131 US
- 代理机构： Käck, Jürgen
- 优先权： US586664 20000601
- 国际公布： WO01093409 20011206
- 主分类号： H02M1/00
- IPC分类号： H02M1/00
摘要：
A voltage regulator circuit (11) that receives an input signal (450) and provides an output signal (600) that is clamped at a specified voltage desired for an internal circuit. The disclosed voltage regulator circuit includes a plurality of subcircuits including a voltage tracking subcircuit (500) in which the output voltage tracks the input voltage with no voltage drop when the input voltage starts to rise from zero volts. In the input voltage increases to a desired voltage level for the internal circuit, the voltage tracking subcircuit (500) clamps the output voltage to remain at that voltage. If the input voltage further increases to a higher voltage, the voltage tracking subcircuit (500) is disabled and one of a plurality of voltage maintaining subcircuits (550, 560, 570) takes control so that the output voltage remains at the desired voltage for the internal circuit.
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