Advanced Electronics formulas

Below is the List of Advanced Electronics formulas:

• Comlex numbers formulas
• LR-C network formula
• LR-CR formulas
• Advanced Electronics Determinants
• Delta star formula
• Star delta formula
• Impedance matching formula
• Formulas for R-L-C series circuits
• Fourier series formulas
• Field theory Formulas
• Harmonic Analysis Formulas
• Formulas for Hysteresis and Eddy current

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FET Parameters

As you know the primary gain parameter of a standard bipolar transistor is beta. Beta describes the ratio of the current flow through the base relative to the current flow through the collector. In case of FETs, the primary gain parameter is called trans-conductance (Gm). This trans-conductance is the ratio that defines the effect that a gate-to source voltage (VGS) variation will have on the drain current (ID).

Transconductance is usually defined in terms of micromhos (mho is the basic unit used for expressing conductance).Normal transconductance values for common FETs range from 2000 to 15,000 micromhos. The equation for determining transconductance is,

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Asynchronous Flip-flop Inputs

The normal inputs of data to a flip flop (0, Sand R, or J and K) are specified to as synchronous inputs because they have ability to affect on the outputs (Q and not-Q) only in step, or in sync, with the clock signal transitions. These additional inputs that are brought to your knowledge are called asynchronous because they can set or reset the flip-flop regardless of the status of the clock signal. Normally, they're called preset and clear.

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