Vdd Vcc Vss Vee
Vdd, Vcc, Vss, Vee Vcc = Collector supply voltage Vee = Emitter supply voltage Vdd = Drain supply voltage Vss = source supply voltage Vdd stands for FET Positive supply voltage Vcc stands for BJT Positive supply voltage Vss stands for FET Negative supply, ground Vee stands for BJT Negative supply, ground »