TTL realisation of inverter or NOT gate

210

02:27:47

TTL IC's though are no longer used but musy say they were the rulers of their era because of fast switching ....but had much power dissipation...the capacitor is the equivalent capacitance of base-collector junctions of pnp and npn....it improves the logic levels and noise margin which directly increases the performance

published 11 years ago

mehedihasan

11 years ago

very nice

hurz

11 years ago

TTL had much power dissipation, right, but not that much as you demonstrante! The internal of an TTL is a little more complex and much more efficent then this circuit. Keep it up!

hafiz09

11 years ago

TTL had much dynamic power dissipation just because of high speed switching compared to MOS n CMOS families thats what i meant

hurz

11 years ago

But your demonstration does have extrem STATIC power dissipation.

aditya001

11 years ago

I like it very much . It helps to understand transistors.

hafiz09

11 years ago

@hurz it all static here ...coz there is no clock and hence no switching..itz just a realization of asynchronous or combinational logic NOT gate...you are mixing it up with fabrication

hafiz09

11 years ago

In RTL we had even much larger dissipation so we moved to TTL ..but coz of large power dissipation we moved to ECL which had approx same switching speed but comparatively less dissipation....in cmos we use insulated gates and channel conduction leading to very less power dissipation...n even today we are at CMOS technology

hurz

11 years ago

You missed something, 10Watt static power dissipation is far beyond reality. Check your circuit. Keep it up.

hafiz09

11 years ago

Sir,the ouput is a logic level not dissipation,dissipation parameters exist in real-time circuits not in simulators itz a realisation im still reapeating not transistor fabrication

mikey5869

11 years ago

Have to agree with hurz on this one, its due to the base current. Standby draw of 10 watts is not ideal.

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.