INTERFACE CIRCUIT
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专利名称：INTERFACE CIRCUIT
发明人：NAKANO RIICHI,MINAGAWA KEIJI,TAKAHASHI KAZUTO 申请号：JP15613185
申请日：19850717
公开号：JPS6217855A
公开日：
19870126
专利内容由知识产权出版社提供
摘要：PURPOSE:To prevent the other devices to be controlled in working from bad influence when a power supply for one device to be controlled is turned off by connecting the power supplies for terminal circuits in respective devices to be controlled mutually through an one-way corrent supply element such as a diode. CONSTITUTION:Write data P, N are utilized for disk driving devices 5a-5c selected by a host device, a terminal circuit constituted of plural resistors 2 in the last disk driving device 5c is validated by a terminal resistance connecting connector 3 and the terminal circuits of the other disk driving devices 5a, 5b are invalidated. When the power supply of the disk driving device 5c is turned off due to maintenance or accident, a -5V power supply for the terminal circuit in the device 5c is also turned off. At that time, the -5V power supplies in the devices 5a, 5b are supplied to the terminal circuit in the device 5c through a diode 8 and a power supply connecting line 9 and the terminal circuit is normally functioned.
申请人：HITACHI LTD
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