7 Segment to BCD Converter

2. 7 Segment to BCD Converter Digital Logic design Imran khan Jabbar khan Javediqbal

3. Introduction Actually, our projectis a reverse project of BCD to 7-segment display. 7-segment consist of seven individual named LED’s (called the segments) named as A,B,C,D,E,F,G. A to G inputs combination will produce any decimal from 0 to 9 number on 7 segment and project circuit will convert it into binary.

4. Block Diagram Circuit A W b x C D y E F z G

5. Truth table

6. Simplification Using MINTERMS W = abcdefg + abcde’fg = abcdfg(e + e’) =abcdfg(1) • W =abcdfg X = a’bcd’e’fg + ab’cde’fg + ab’cdefg + abcd’e’f’g’ =ab’cdfg(e + e’) + a’bcd’e’fg + abcd’e’f’g’ • X =ab’cdfg + a’bcd’e’fg + abcd’e’f’g’ • Y = abc’def’g + abcde’f’g + ab’cdefg + abcd’e’f’g’ Z = a’bcd’e’f’g’ + abcde’f’g + ab’cde’fg + abcd’e’f’g’ + abcde’fg = bcd’e’f’g’(a + a’) + abcde’g(f + f’) + ab’cde’fg • Z = bcd’e’f’g’+ abcde’g + ab’cde’fg

7. Components used We have used seven components as follows. 7SEG-COM-CAT-GRN TOGGLE AND_7 GATE NOT GATE OR_3 GATE OR_4 GATE GROUND

8. Proteus circuit

9. Implementation • On 7-segment we will give combination of inputs which will produce Hexadecimal number 0 to 9. • lets have an example where Decimal 7 is produce on 7-segment as an input & circuit will produce its binary • Input image

10. implementation • LED OFF mean 0 • LED ON mean 1 Output image 0 1 1 1

11. Thank You