发明名称 |
High voltage cascaded charge pump |
摘要 |
A cascaded charge pump includes multiple stages each providing a (nominal) 3 volt increment. Thus a charge pump having an 18 volt range is provided using a CMOS process which normally then allows integration on a single integrated circuit chip of a complex digital logic function such as a UART (universal asynchronous receiver and transmitter) with a high voltage function such as an RS-232 interface, including integrated capacitors for the RS-232 interface charge pump.
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申请公布号 |
US5475335(A) |
申请公布日期 |
1995.12.12 |
申请号 |
US19940319902 |
申请日期 |
1994.10.07 |
申请人 |
NATIONAL SEMICONDUCTOR CORPORATION |
发明人 |
MERRILL, RICHARD B.;YOUNG, WHU-MING |
分类号 |
H01L27/02;H01L27/092;H01L29/08;H01L29/10;H01L29/78;H02M3/07;(IPC1-7):G05F1/10;G05F3/02 |
主分类号 |
H01L27/02 |
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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