![]() ![]() Original Assignee National Aeronautics and Space Administration NASA Priority date (The priority date is an assumption and is not a legal conclusion. National Aeronautics and Space Administration NASA Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Sampsell Current Assignee (The listed assignees may be inaccurate. ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07/331,551 Inventor Richard D. Google Patents Programmable remapper for image processingÄownload PDF Info Publication number US5067019A US5067019A US07/331,551 US33155189A US5067019A US 5067019 A US5067019 A US 5067019A US 33155189 A US33155189 A US 33155189A US 5067019 A US5067019 A US 5067019A Authority US United States Prior art keywords input output image pixels pixel Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. ![]() Google Patents US5067019A - Programmable remapper for image processing Thus, regardless of AC or DC supply, universal motor works on the same principle that DC series motor works.US5067019A - Programmable remapper for image processing Thus, direction of magnetic field and the direction of armature current reverses in such a way that the direction of force experienced by armature conductors remains same. Hence, as polarity of AC changes periodically, the direction of current in armature and field winding reverses at the same time. Because, armature winding and field winding are connected in series, they are in same phase. When fed with AC supply, it still produces unidirectional torque. The direction of this force is given by Fleming's left hand rule. Due to this mechanical force, or torque, the rotor starts to rotate. When a current carrying conductor is placed in an electromagnetic field, it experiences a mechanical force. ![]() The same current also flows from the armature conductors. When current flows in the field winding, it produces an electromagnetic field. When the universal motor is fed with a DC supply, it works as a DC series motor. A universal motor works on either DC or single phase AC supply. ![]()
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