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公开(公告)号：EP0732796B1
公开(公告)日：2005-05-11
申请号：EP96200598.9
申请日：1996-03-08
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公开(公告)号：EP0732796A3
公开(公告)日：1999-03-24
申请号：EP96200598.9
申请日：1996-03-08
IPC分类号： H02M3/07
摘要： An embodiment of a pumped substrate system includes an oscillator, capacitive pump, comparing circuit, and a level shifter. The level shifter is coupled between the substrate and the positive input lead of the comparator and shifts the voltage level present on the substrate by a voltage Vbg. The comparator compares ground potential to the shifted substrate voltage. The oscillator, capacitive pump and comparing circuit form a negative feedback loop which operates to maintain the substrate voltage substantially equal to -Vbg. In one embodiment, the level shifter includes a band gap reference.
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公开(公告)号：EP0732796A2
公开(公告)日：1996-09-18
申请号：EP96200598.9
申请日：1996-03-08
IPC分类号： H02M3/07
摘要： An embodiment of a pumped substrate system includes an oscillator, capacitive pump, comparing circuit, and a level shifter. The level shifter is coupled between the substrate and the positive input lead of the comparator and shifts the voltage level present on the substrate by a voltage Vbg. The comparator compares ground potential to the shifted substrate voltage. The oscillator, capacitive pump and comparing circuit form a negative feedback loop which operates to maintain the substrate voltage substantially equal to -Vbg. In one embodiment, the level shifter includes a band gap reference.
摘要翻译： 泵浦衬底系统的实施例包括振荡器，电容泵，比较电路和电平转换器。 电平移位器耦合在比较器的衬底和正输入引线之间，并且通过电压Vbg将存在于衬底上的电压电平移位。 比较器将接地电位与移位的衬底电压进行比较。 振荡器，电容泵和比较电路形成负反馈回路，其操作以将衬底电压维持在基本上等于-Vbg。 在一个实施例中，电平移位器包括带隙基准。
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