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NPP
NPP Number System, Boolean Algebra and Logic Circuits 189
Convert OR into Bubbled OR: OR JoQ> H$mo ~~ëS> OR JoQ> _| ~XbZo na…
A
B A + B
Replace Bubbled OR with NAND: ~~ëS> OR Ho$ ñWmZ na NAND ~ZmZo na …
A
A+B
B
Two NOT Gates can be replaced by shorted XmoZm| NOT JoQ>m| Ho$ ñWmZ na shorted NAND
NAND: ~ZmZo na:
A
B A.B
Problem 3.44 àíZ 3.44
Draw OR using NOR: OR JoQ> H$mo NOR H$s ghm`Vm go ~ZmAmo:
Solution: hc:
A
B A + B
Convert OR into NOR by placing a bubble OR H$mo NOR _| ~XbZo hoVw CgHo$ AmCQ>nwQ> na
at the output. But to cancel this bubble put a EH$ ~~b bJmVo h¢ Am¡a gmW hr BgHo$ loUr _| EH$ NOT
NOT Gate in Series: JoQ> bJmZm ^r Amdí`H$ hmoJm…
A
B A + B
Convert NOT into shorted NOR: A~ NOT Ho$ ñWmZ na em°Q>}S> NOR ~ZmZo na…
A
B A+B
