发明申请
US20070229138A1 APPARATUS FOR IMPROVED DELAY VOLTAGE LEVEL SHIFTING FOR LARGE VOLTAGE DIFFERENTIALS
失效
用于改进延迟电压水平移位的装置用于大电压差分
- 专利标题: APPARATUS FOR IMPROVED DELAY VOLTAGE LEVEL SHIFTING FOR LARGE VOLTAGE DIFFERENTIALS
- 专利标题(中): 用于改进延迟电压水平移位的装置用于大电压差分
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申请号: US11278236申请日: 2006-03-31
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公开(公告)号: US20070229138A1公开(公告)日: 2007-10-04
- 发明人: David Chen , Michael Kerr , William Lawson
- 申请人: David Chen , Michael Kerr , William Lawson
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 主分类号: H03L5/00
- IPC分类号: H03L5/00
摘要:
A voltage level shifting device for translating a lower operating voltage to a higher operating voltage includes a first input node coupled to a first pull down device and a second input node coupled to a second pull down device. The second node receives a complementary logic signal with respect to the first input node, the first and second input nodes associated with the lower operating voltage. A first pull up device is in series with the first pull down device and second pull up device is in series with the second pull down device, with the first and second pull up devices coupled to a power supply at the higher operating voltage. An output node is between the second pull down device and the second pull up device, the output node controlling the conductivity of the first pull up device. A clamping device is in parallel with the first pull up device, and configured to prevent the second pull up device from becoming fully saturated.
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