TW200713727A - Circuit for protecting mother board - Google Patents

Circuit for protecting mother board

Info

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
Application number
TW094134348A
Other languages
Chinese (zh)
Inventor
Chia-Wen Huang
Original Assignee
Hon Hai Prec Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hon Hai Prec Ind Co Ltd filed Critical Hon Hai Prec Ind Co Ltd
Priority to TW094134348A priority Critical patent/TW200713727A/en
Publication of TW200713727A publication Critical patent/TW200713727A/en

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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.
TW094134348A 2005-09-30 2005-09-30 Circuit for protecting mother board TW200713727A (en)

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)

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