Quescent point and ac and dc load lines - Physics Forums The quiescent point shows the operating point with no signal, the resting condition, for instance, the collector voltage and current with no signal The DC load line applies if the collector load is a resistor It shows how the collector voltage will swing up and down as the current varies, going from zero to the supply voltage
ALS logic family circuit calculations - Physics Forums Homework Statement For the ALS logic circuit, estimate: (a) the current IOL (b) the delay in a 1-to-0 transition at one of the inputs of GATE 1 appearing as an effect at the output of GATE 5 (c) the total power consumed by the circuit in a quiescent state Homework Equations data[ B] The
Explain Vceq Icq in Collector-Base Bias Config. - Physics Forums Vceq would be the value of Vce at the quiescent point, the "Q point" Icq is the value of collector current at the Q point The Q point is the DC operating point that your bias arrangement sets BTW, it is not correct to use lower-case subscripts for these DC bias points, you should be using upper-case There is a strict convention to follow
Do transistors only work with DC and not with AC? - Physics Forums Whereas "AC" means that the current is alternating (usually about some quiescent current value, as Jim has pointed you to) Transistors are fine amplifying AC signals, as long as the quiescent point is chosen so that the bias of the transistor (usually in its active region) is met throughout the input and output signal swing range
Voltage gain of a bipolar transistor circuit - Physics Forums * At first, one must know that re is a dynamic quantity (not constant) which depends on the DC quiescent current * From the physical point of view it is not a resistance (although it has the unit V A) and it does not belong to the emitter Instead, it is an abbreviation (symbol) for the invers transconductance gm=1 re
Spikes in LTspice voltages and currents - Physics Forums Another is that, to reduce crossover distortion, the output stage has a quiescent current of 800 mA, without any current limit to prevent the catastrophic thermal runaway You need a checklist of parameters to verify, so when you optimise a design, you do not end up with something like 800 mA quiescent in the output stage
Do electrons flow in an electrical circuit? - Physics Forums In an AC circuit, the electrons indeed do not stray very far from their quiescent locales, since their motion is back and forth (over pretty short distances) In DC circuits of course electrons move through the circuit, albeit a lot more slowly than you would expect until you calculate their drift velocity
Analyzing the internal circuitry of IC 741 Op-Amp step by step Q16, Green, is biasing to set the output stage (Q14, Q20) quiescent current, eliminating crossover distortion, probably class AB (Enter the circuit in a simulator such as the free LTSpice to see all the bias points ) The Output current limiting is done by Q17 and the 25Ω resistor