Wiley - Grounds for Grounding: A Circuit to System Handbook Jan 2010

535749 · 发表于 2010-8-7 07:00:00

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tiberia_kelvin · 发表于 2010-8-8 20:06:50

thank you very much.

allex_liu · 发表于 2010-9-6 15:28:11

Good sharing!

allex_liu · 发表于 2010-9-6 15:48:32

Downloaded!!!

ahshima · 发表于 2010-9-9 15:20:05

ahshima · 发表于 2010-9-9 15:21:28

ahshima · 发表于 2010-9-9 17:19:20

ahshima · 发表于 2010-9-9 17:21:40

tom-tseng · 发表于 2010-11-5 10:00:01

所謂匯流排衝突 (Bus Contention或Bus Conflict) 是說：“同一時間”有兩個以上的單元對匯流排送出資料，導至接收端的單元收到的資料不正確。例如單元A對匯流排送出資料1，而單元B對匯流排同時送出資料0, 1與0這兩個信號在接收端的單元所看到的將可能既非0亦非1。須知道的是：匯流排雖是共用，但是一個時間僅允許有一個單元對其這個匯流排送出資料。

tom-tseng · 发表于 2010-11-5 10:09:53

Grounding serves the following principal purposes:
• It provides an electrical supply system with an electrical reference to the
groundmass. By connecting a particular point of the supply source to the
ground (such as the neutral of a three-phase source), it is ensured that any
other point of the system stays at a certain potential with reference to the
ground.
• A metallic surface of the enclosure of an electrical system is grounded to
ensure that it stays at ground potential always and thus remains safe to persons
who may come into contact with it.
• It provides a low-impedance path for accumulated static charges and surges
caused by atmospheric or electrical phenomenon to the ground thus ensuring
that no damage is caused to sensitive equipment and personnel.
Electrical systems were not always grounded. The first systems were ungrounded

[资料] Wiley - Grounds for Grounding: A Circuit to System Handbook Jan 2010

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