/* This Code simulates the behavior of NPN Transistors. Each Transistor is an Object with three Pins: two Inputs (b, c) and one Output (e). Only when both Inputs are true, the Output is true, too. In this Example two Transistors are connected with a third Transistor. Play around - it's Fun! */ #include using namespace std; class npn { protected: string name; bool b = false; bool c = false; bool e = false; char co_pin; npn *co_npn = 0; public: npn (string n) { name = n; cout << "Created new Transistor called " << name << endl; } void connect (npn *c, char p) { co_npn = c; co_pin = p; cout << "Output Pin e of "<< name << " connected to Pin " << p<< " of " << co_npn->name << endl; } void set_pin (char pin, bool value) { switch (pin) { case 'b': b = value; break; case 'c': c = value; break; } set_out (b, c); cout << "Input Pin " << pin << " of " << name << " switched " << value << endl; } void set_out (bool b, bool c) { if (b == 1 and c == 1) { e = 1; } else { e = 0; } switch (co_pin) { case 'b': co_npn->b = e; break; case 'c': co_npn->c = e; break; } if (co_npn->b == 1 and co_npn->c == 1) { co_npn->e = 1; } else { co_npn->e = 0; } } void out () { cout << name << endl; cout << "Input Pin b " << b << endl; cout << "Input Pin c " << c << endl; cout << "Output Pin e " << e << endl << endl; } }; int main() { npn tr1 ("NPN 1"); npn tr2 ("NPN 2"); npn tr3 ("NPN 3"); npn *tr3p = &tr3; cout << endl; tr1.connect (tr3p, 'b'); tr2.connect (tr3p, 'c'); cout << endl; tr1.set_pin ('b', true); tr2.set_pin ('c', true); cout << endl; tr1.out(); tr2.out(); tr3.out(); cout << "-----------------------------" << endl; tr1.set_pin ('c', true); tr2.set_pin ('b', true); cout << endl; tr1.out(); tr2.out(); tr3.out(); cout << "-----------------------------" << endl; tr1.set_pin ('b', false); cout << endl; tr1.out(); tr2.out(); tr3.out(); return 0; }

NPN Transistors connected