Digital codes-Excess 3 code

What is an Excess-3 code?

Excess-3 code is also called as self complementary code or reflective code as its complement of any number (0-9) is available with in these 10 numbers. For example Excess 3 code of 5 is 1000 and it is 1’s complement code is 0111 which is code of 4. its an unweighted code.

Excess -3 code is addition of 3 to the BCD word.

BCD                = 0000

Excess – code    = 0011

How to convert decimal to excess-3 code?

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