Читать книгу Design and Development of Efficient Energy Systems - Группа авторов - Страница 27

In Figure 2.4 the compressor is made of three half adders and one full adder by which we obtain the outputs as the sum and two carries. The working principle of 4:3 compressor is to understand as two of the inputs applied to the half adder (H1), and the other two inputs are applied half adder (H2). The sum of two half adders given to (H3) half adder and the sum which obtained from (H3) is the sum of the compressor, and the carry which derived from all the half adders inputted to full adder. Sum and carry output of this full adder is named as SUM2 and carry is SUM3.