An example of positive feedback loop is the onset of contractions in childbirth. When contraction begins, the hormone oxytocin is released into the body to stimulate further contractions. As for the negative feedback loop, an example is the regulation of blood glucose levels.

## What is an example of feedback mechanism?

An example of positive feedback loop is the onset of contractions in childbirth. When contraction begins, the hormone oxytocin is released into the body to stimulate further contractions. As for the negative feedback loop, an example is the regulation of blood glucose levels.

## Why oscillators are needed negative and positive feedback loop connection?

Using Positive Feedback. With feedback (either positive or negative) it is in “closed loop” mode. In ordinary amplifiers negative feedback is used to provide advantages in bandwidth, distortion and noise generation, and in these circuits the closed loop gain of the amplifier is much less than the open loop gain.

## Can AC be converted into DC?

A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification, since it “straightens” the direction of current.

## What are the types of feedback loops?

There are two types of feedback loops: positive and negative. Positive feedback amplifies system output, resulting in growth or decline. Negative feedback dampers output, stabilizes the system around an equilibrium point.

## What is the minimum frequency of a 16 MHz crystal with a stability of 200 ppm?

What is the maximum frequency of a 16-MHz crystal with a stability of 200 ppm? Explanation: The frequency can vary as much as 200 Hz for every 1 MHz of frequency or 200×16=3200Hz. The maximum frequency is 1,+ 3200 = 1,Hz.

## Why do we convert AC to DC?

AC signals can not be stored and DC power or signals can be stored. Thus,to store the electrical energy we need to convert it into DC. Also, Digital devices require constant voltages, thus to get those constant voltage levels(DC levels) we need to convert AC into DC using Rectifiers.

## What is a positive feedback loop example?

Positive feedback occurs to increase the change or output: the result of a reaction is amplified to make it occur more quickly. Some examples of positive feedback are contractions in child birth and the ripening of fruit; negative feedback examples include the regulation of blood glucose levels and osmoregulation.

## Does UPS convert AC to DC?

The UPS converts the AC to DC by the help of the rectifier and again converts the DC power into AC power by the help of an inverter. The block diagram od UPS is shown below. The basic feature of the offline/standby inverter is to provide the backup power and protect the system from the power surges.

## How are oscillators classified?

There are many types of oscillators, but can broadly be classified into two main categories – Harmonic Oscillators (also known as Linear Oscillators) and Relaxation Oscillators. RC Phase Shift Oscillator. Hartley Oscillator. Voltage Controlled Oscillator.

## How an oscillator converts DC to AC?

An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave or a triangle wave. Oscillators convert direct current (DC) from a power supply to an alternating current (AC) signal.

## Which oscillator has highest frequency?

Quartz Crystal Oscillator

## Can a transistor converts AC to DC?

A single transistor may not convert DC to AC. But if you use a combination of minimum 2 transistors with 2 capacitors you can do it. The circuit is known as the half-bridge inverter circuit. Or else you can use a full-bridge inverter circuit with 4 transistors.