Static Power Optimization for CMOS Combinational Circuit Based on Bacterial Colony Chemotaxis Algorithm

In view of the present shortcomings of static power optimization for CMOS combinational circuit, such as long execution time and depending on Hspice simulation, a novel system based on bacterial colony chemotaxis algorithm is proposed, of which the principle is transistor stacking effect. In this system, the input of circuit is considered as the position of bacteria and the virtual stacking factor of circuit is considered as the fitness function. Then according to the inspected type and state of all standard cells, the input minimizing the static power of circuit is obtained with bacterial colony chemotaxis algorithm. The experimental result shows that the proposed system has a good performance on analytical velocity while holding fine analytical precision.