A CIRCUIT TO CONNECT SPARE PARTS AUTOMATICALLY DURING THE TROUBLE TIME OF THE MAIN PARTS

摘要

A system provides new mechanism to exchange major part with spare one when the current is interrupted upon part failure. Also it is capable of increasing connection point of spare part, while reducing failure rate and saving maintenence cost. The system features major parts (MP0), driving signal generator (SG) for MPo, major part driver (MD0), spare part (SP0...Spn) and spare part driver (SD0...SDn) working to replace major part upon at least one fault signal from major driver or previous driver including (SDn). The part driver (MD0, SD0...SDn) are composed of transistors (Q0...Qn), switching device (S0...Sn) for driving base terminal of transistors and failure detector (DET0,...DETn).