86.2. Coverage of Today’s Presentation

So, the coverage of today’s presentation is enlisted here. So, we shall start with numerical examples of simple current mirror. We may start with current mirror having MOSFET transistor and then we can go for current mirror using BJT and then we will be moving to numerical examples on improvised current mirror or more precision current mirror.

In this section, the speaker outlines the topics that will be discussed during the presentation. It indicates that the focus will be on numerical examples related to current mirrors, starting with simple versions using MOSFETs and BJTs. The session will also cover more advanced designs known as 'improvised current mirrors', which aim to enhance precision in circuit performance.

Think of current mirrors as different types of watering systems for plants. The simple current mirror is like a basic drip system that provides just enough water. The advanced ones, like improvised current mirrors, are sophisticated systems that ensure each plant receives exactly the right amount of water, just like precision electronics ensure circuits operate efficiently.

And there also we will be having 2 types of circuits: namely one using BJT’s and then other one is MOSFET. And subsequently, we will be talking about numerical examples on amplifiers which are using current mirror.

This chunk specifies that the presentation will explore two main types of current mirror circuits: those using Bipolar Junction Transistors (BJTs) and those using Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs). Following this, it will also touch on how current mirrors can be utilized within amplifiers, although the main focus remains on understanding current mirrors themselves.

Imagine different types of light bulbs (BJT and MOSFET) used for lighting a room. Each type has its own characteristics but ultimately serves the same purpose of illuminating space. In electronics, different types of transistors serve similar functions but with unique behaviors and efficiencies.

So, our main focus is on the current mirror. So, we may not be going into the aspect of the amplifiers, but primarily what are the advantages we can get using current mirror and what is the corresponding calculation we do?

The emphasis here is on understanding the practical benefits and calculations associated with current mirrors rather than amplifiers. This indicates that the session will prioritize hands-on numerical examples to reinforce theoretical knowledge about current mirrors, demonstrating their utility in real circuit applications.

Think of a chef honing in on perfecting a specific dish rather than diversifying their menu. By focusing on the current mirror, the aim is to master the techniques and calculations critical for its application in electronics, ensuring an in-depth understanding of this particular component.

That will be highlighted by considering 2 specific types of examples, one is single-ended amplifier namely, common emitter and common source amplifier and then differential amplifier.

This section notes the specific types of amplifiers that will be discussed in relation to current mirrors: the common emitter amplifier, which is a typical single-ended amplifier configuration, and the differential amplifier type. It suggests that while the focus is on current mirrors, these amplifiers demonstrate practical applications where current mirrors enhance circuit performance.

Picture a car that runs on special fuel that optimizes efficiency. The current mirror acts like that special fuel, enhancing how well amplifiers (the car) operate. The common emitter and differential amplifiers are different models of cars that each can benefit from this fuel type in unique ways.

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