Hello,
for a school project we need to build logic gates but all made from NANDs made with NPN Transistors.You can see our NAND circuit that we have to use as a base for all the other logic gates in the attachments. The XOR needs to have 2 Inputs (simple switches) with LEDs that indicate wheter its on or off and 1 LED that shows the output. We have to use the basic NAND like it is shown in the attachment. Now my friends made the following plan which should be the basic NAND combined like shown in the picture above but it obviously doesn´t work, for example the lowest Transistor to the right is burning everytime because there is no transistor to the base.
What do we have to change that the XOR works as intended? Thank you for your Answers.
for a school project we need to build logic gates but all made from NANDs made with NPN Transistors.You can see our NAND circuit that we have to use as a base for all the other logic gates in the attachments. The XOR needs to have 2 Inputs (simple switches) with LEDs that indicate wheter its on or off and 1 LED that shows the output. We have to use the basic NAND like it is shown in the attachment. Now my friends made the following plan which should be the basic NAND combined like shown in the picture above but it obviously doesn´t work, for example the lowest Transistor to the right is burning everytime because there is no transistor to the base.
What do we have to change that the XOR works as intended? Thank you for your Answers.