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41. 发明专利

JPS63244273A COMPENSATION APPARATUS AND METHOD FOR VIDEO SIGNAL PROCESSOR 失效
公开(公告)号：JPS63244273A
公开(公告)日：1988-10-11
申请号：JP266488
申请日：1988-01-11
申请人： ALLEN BRADLEY CO
发明人： UESURII DEEBISU , MAIKURU ERU GASUPERI
IPC分类号： G06T1/00 , H04N5/243

46. 发明专利

JPS54137968A METHOD OF MOUNTING LEAD WIRE AND METHOD OF ASSEMBLING MICROMINIATURE CIRCUIT 失效
公开(公告)号：JPS54137968A
公开(公告)日：1979-10-26
申请号：JP4212279
申请日：1979-04-09
申请人： ALLEN BRADLEY CO
发明人： OOBUIRU AA PENRADO
IPC分类号： H01R12/04 , H01L23/495 , H01L23/50 , H05K3/34

50. 发明专利

JPH06267385A ELECTRIC CONTACTOR 失效
公开(公告)号：JPH06267385A
公开(公告)日：1994-09-22
申请号：JP10455193
申请日：1993-04-30
申请人： ALLEN BRADLEY CO
发明人： KURISUTOFUAA JIEI BUIEROTSUKU
IPC分类号： H01H47/04 , H01H47/32
摘要： PURPOSE: To control a voltage signal impressed to a solenoid so as to close a contact point with the minimum springing back of the contact point. CONSTITUTION: An electric module 60 constituting a control system includes a rectifier 62 for converting an interline voltage signal into a DC voltage signal, a transistor switch 64 for controlling the impression of this DC voltage signal to a solenoid 16 and a controller 66. The controller 66 generates a pulse width modulation signal for driving the switch 64, increases its duty cycle linearly from 20 to 100% over an adjusting time zone several times as large as an average transition period for contact point opening and thereby gradually increases a substantial or average voltage level applied to the solenoid 16. During the transition period, a voltage and a current applied to the solenoid are limited to levels slightly higher than the lowest level necessary for closing the contact point, and the contact point is closed by a minimum force.

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