Title :
A novel approach base on electric field analysis to reduce crosstalk problem on PCB
Author :
Xin, Wu ; Lee, C.M. ; Pong, M.H. ; Qian, Zhaoming
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
Abstract :
Parasitic capacitance between printed traces have severe influence on EMC performance of a switching power supply. A field-oriented PCB layout CAD method is proposed to reduce electric field coupling on a PCB. An emission map of a noisy trace provides a visual aid to the PCB designer. A coupling index feeds back a value to indicate coupling level between traces in real-time. A genetic algorithm based on the coupling index is implemented to obtain the best layout. A simulation and experiment are carried out to verify these ideas
Keywords :
capacitance; circuit layout CAD; crosstalk; electric fields; electromagnetic compatibility; genetic algorithms; printed circuit layout; switched mode power supplies; EMC performance; PCB; coupling index; coupling level; crosstalk reduction; electric field analysis; electric field coupling reduction; emission map; field-oriented PCB layout CAD method; genetic algorithm; noisy trace; parasitic capacitance; printed traces; switching power supply; Couplings; Crosstalk; Current density; Electromagnetic compatibility; Electromagnetic interference; Genetic algorithms; Parasitic capacitance; Power engineering and energy; Switched-mode power supply; Time factors;
Conference_Titel :
Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE
Conference_Location :
Charleston, SC
Print_ISBN :
0-7803-5421-4
DOI :
10.1109/PESC.1999.785609
