TW200713727A - Circuit for protecting mother board - Google Patents
Circuit for protecting mother boardInfo
- Publication number
- TW200713727A TW200713727A TW094134348A TW94134348A TW200713727A TW 200713727 A TW200713727 A TW 200713727A TW 094134348 A TW094134348 A TW 094134348A TW 94134348 A TW94134348 A TW 94134348A TW 200713727 A TW200713727 A TW 200713727A
- Authority
- TW
- Taiwan
- Prior art keywords
- transistor
- electrode
- signal
- generated
- circuit
- Prior art date
Links
Landscapes
- Electronic Switches (AREA)
Abstract
A circuit for protecting a mother board on which a CPU power line has not linked includes a first transistor, a second transistor and a third transistor. A base electrode of the first transistor is connected to a control signal caused by a CPU voltage signal. An emitter electrode of the first transistor is ground connection. A base electrode of the second transistor is connected to a collector electrode of the first transistor. A collector electrode of the second transistor is connected to a power button signal. An emitter electrode of the second transistor is ground connection. A base electrode of the third transistor is connected to a first signal that is generated at the same time as the CPU voltage signal is generated. A collector electrode of the third transistor is connected to a second signal that is generated at the same time as the CPU voltage signal is generated. The emitter electrode of the third transistor is connected with a collector electrode of the first transistor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW094134348A TW200713727A (en) | 2005-09-30 | 2005-09-30 | Circuit for protecting mother board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW094134348A TW200713727A (en) | 2005-09-30 | 2005-09-30 | Circuit for protecting mother board |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200713727A true TW200713727A (en) | 2007-04-01 |
Family
ID=57911425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094134348A TW200713727A (en) | 2005-09-30 | 2005-09-30 | Circuit for protecting mother board |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW200713727A (en) |
-
2005
- 2005-09-30 TW TW094134348A patent/TW200713727A/en unknown
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