## Astable Multivibrator Transistors

Regenerative switching circuits such as Astable Multivibrators are the most commonly used type of relaxation oscillator because not only are they simple, reliable and

## Schmitt Trigger

The Schmitt Trigger is a logic input type that provides hysteresis or two different threshold voltage levels for rising and falling edge.

## Transistor Schmitt Trigger

The Schmitt Trigger is a logic input type that provides hysteresis or two different threshold voltage levels for rising and falling edge.

## circuit design notes

Voltage limiter with ic source inrush current protector to protect capacitor from fast charging and let mosfets work as soft start +

## INPUT and OUTPUT IMPEDANCE

THEORETICAL CONSIDERATIONS The concept of circuit loading The emitter-follower circuit Calculation of the effective (load) input impedance Zin in the emitter-follower circuit

## Common Emitter Amplifier

The most common amplifier configuration for an NPN transistor is that of the Common Emitter Amplifier circuit All types of transistor amplifiers

## inductor and capacitor formulas

Capacitor Inductor

## Norton’s Theorem

What is Norton’s Theorem? Norton’s Theorem states that it is possible to simplify any linear circuit, no matter how complex, to an

## Superposition theorem

Superposition theorem is one of those strokes of genius that takes a complex subject and simplifies it in a way that makes

## Mesh Current Method and Analysis

The Mesh-Current Method, also known as the Loop Current Method, is quite similar to the Branch Current method in that it uses simultaneous equations,

## Thevenin’s Theorem

Thevenin’s Theorem states that it is possible to simplify any linear circuit, no matter how complex, to an equivalent circuit with just

## Millman theorem

In Millman’s Theorem, the circuit is re-drawn as a parallel network of branches, each branch containing a resistor or series battery/resistor combination. Millman’s Theorem is applicable