发明名称 |
Power supply reverse bias protection circuit for protecting both analog and digital devices coupled thereto |
摘要 |
All integrated circuits (ICs) require a power supply having a potential difference for use in powering internal integrated circuit components to ensure their operation. In some cases it is possible to inadvertently reverse the bias of the applied potential difference, resulting in damage to the IC. For propagating large currents big pass transistors are used within the circuit. Reverse bias protection for these ICs is achieved by utilizing either a protection transistor in parallel with the big pass transistor, or a diode within the big pass transistor for protecting both analog and digital ICs.
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申请公布号 |
US6650520(B2) |
申请公布日期 |
2003.11.18 |
申请号 |
US20010014722 |
申请日期 |
2001.10.26 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
HE QING |
分类号 |
H02H11/00;(IPC1-7):H02H3/42 |
主分类号 |
H02H11/00 |
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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