Hi all,
I am working on a circuit that is supposed to produce a train of square waves at one amplitude then at a lower amplitude and switch back and forth from high amplitude pulses to low amplitude pulses. See schematic/waveforms
I designed the circuit in multisim and it worked great the first time....But in real life its not working right-I think my problem is because I'm using a different voltage across the transistors so the base current is getting distorted since it comes from a different circuit and is at a different voltage???
WhenI remove Vee in multisim and ground that point to the other circuit I get exactly what I need.....But in real life when I ground the lower transistor to the supply ground the amplitude across the load drops to nothing.
I'm using a dual variable power supply and a dual channel signal generator....Signals look exactly as they are supposed to until I look across the 10 ohm load??
Thanks
I am working on a circuit that is supposed to produce a train of square waves at one amplitude then at a lower amplitude and switch back and forth from high amplitude pulses to low amplitude pulses. See schematic/waveforms
I designed the circuit in multisim and it worked great the first time....But in real life its not working right-I think my problem is because I'm using a different voltage across the transistors so the base current is getting distorted since it comes from a different circuit and is at a different voltage???
WhenI remove Vee in multisim and ground that point to the other circuit I get exactly what I need.....But in real life when I ground the lower transistor to the supply ground the amplitude across the load drops to nothing.
I'm using a dual variable power supply and a dual channel signal generator....Signals look exactly as they are supposed to until I look across the 10 ohm load??
Thanks