What is the Q-point?

The Q-point, also known as the operating point or quiescent point, is the operating point of a device or circuit where the current and voltage levels are stable and do not vary significantly. It is the point at which the device or circuit operates under normal conditions, without any input signal or modulation. The Q-point is important in the design and analysis of electronic circuits, as it determines the biasing conditions and overall performance of the circuit.

The Q-point is the operating point of a transistor on its output characteristics graph. It is the point at which the transistor is biased so that it is operating in its active region. The Q-point is determined by the values of the collector-emitter voltage (Vce) and the collector current (Ic). The Q-point is important because it determines the transistor's gain and linearity.