I designed a circuit like this.
originally, i put jfet(n-cha) on Q2,Q3,Q4. however we don't have stock now. so i use transistor and i will use satuation state, cutoff state.
2n2222's collector-emitter-satuation-voltage is 0.3~1 and current gain is 100. so i must controll current. but I can't analyze this circuit.
how can i analyze this circuit??