91.4.1. Ideal Conditions and Naming Conventions

In this case, as I said, that the input signal and output signal are say voltages. So, here we consider it is voltage here also it is voltage, so the signal here it is voltage and this is also voltage.

This chunk introduces the basic model of a feedback system where both the input and output signals are voltages. Understanding the type of signals involved is crucial because it determines how we configure our feedback system.

Think of a feedback system like a thermostat in your home. The input is the current temperature (voltage), and the output is the heating or cooling action (also represented as voltage). Both parts interact to ensure your home stays at a comfortable temperature.

So, that is why we say that voltage sampler at the output port it is having a parallel port. On the other hand, if you see signal here they are voltages, so our intention is to use these two voltages to generate this S or v.

This chunk explains two key actions in feedback systems: sampling and mixing. The voltage sampler in a feedback network samples the output signal in a parallel manner. Mixing is about combining both the feedback voltage and the input voltage to generate a new signal, S.

Consider a music mixing board where different audio signals (voltages) are blended together to create one output sound. The way these signals are combined will determine the quality of the final audio, similar to how feedback signals impact system behavior.

So, we have considered this ideal situation namely the resistance here it is ∞. So, I am keeping this open so, R it is ∞.

In ideal feedback systems, we assume infinite input resistance and zero output resistance. This assumption helps in avoiding loading effects, ensuring that the feedback does not alter the circuit's operation significantly.

Imagine trying to listen to music through a speaker system. If there's very little resistance in the wires (zero output resistance), your sound quality remains perfect, much like in the ideal feedback system. Conversely, if you had too much resistance, your music would sound muffled.

As you can see here we are summarizing the naming conventions again it may vary from textbook to textbook; but you should not get confused with different naming.

This chunk emphasizes the importance of naming conventions in feedback systems. Each configuration has names based on its sampling and mixing methods, which can differ across various resources. Understanding these terms helps in grasping how feedback systems function.

Think of naming as giving instructions in a recipe; different chefs might call the same dish by different names based on their cultural context. Similarly, feedback configurations can be referred to differently, but they aim to achieve the same goal in circuit design.

To compress it typically we use this word and this word. So, alternatively this configuration it can be named as shunt series feedback system or you may say that here the signal it was voltage, so we can say that this is voltage series feedback.

In this chunk, we summarize how to refer specifically to feedback configurations based on their sampling and mixing techniques. For instance, 'shunt-series feedback' indicates the method of sampling and mixing employed.

When discussing types of sandwiches, you might refer to a 'grilled cheese sandwich' (specific ingredients and cooking method) versus a 'toasted sandwich' (general preparation). Naming configurations in feedback circuits helps clarify the methods used.

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