Читать книгу Design and Development of Efficient Energy Systems - Группа авторов - Страница 30

In Figure 2.7, a 10:4 compressor is made of five full adders, five half adders, and one OR gate. The working principle of this compressor is three inputs given to the full adder (F1), another three inputs given to another full adder (F2), and another three inputs given to the full adder (F3). The sum of these three full adders (F1), (F2) and (F3) is given to full adder (F5) and carry given to the full adder (F4). The last input and the sum of the full adder (F5) is given to (H3) half adder. Carry signal of (FG5) full adder and the output sum of the (F4) full adder acts as input to half adder (H1).

Figure 2.6 Compressor 8 to 4.

Figure 2.7 Compressor 10 to 4.

The sum obtained from the half adder (H3) is the Y1 output of the compressor. The carry output of the (H3) half adder and sum of (H1) half adder (H1) acts as input to (H4) half adder. The sum obtained from half adder (H4) taken as output Y2. The carry of the full adder (F4) and half adder (H1) given to half adder (H2). The carry output of (H4) half adder and the sum output of (H2) half adder acts as input to half adder (H5). The sum obtained for half adder (H5) is taken as output Y3. The carry of half adder (H5) and half adder (H2) is given to the OR gate. The result obtained in this OR gate is taken as output Y4.