Clipper and clamper circuits are used to modify signal waveforms. Clipper circuits remove portions of a signal that exceed a reference level, cutting off either positive or negative portions. Clamper circuits shift the entire signal up or down without changing its shape, setting either the positive or negative peak at a desired level. Common circuit types include positive and negative clippers and clampers, which use diodes and capacitors to clip or shift the signal in a particular direction relative to the reference level.
Do Diodes and electronic stuff freaks you out?And what about those clippers and clampers?The details are as follows.
You can learn every concept related to it here.Enjoy clipping :)
Do Diodes and electronic stuff freaks you out?And what about those clippers and clampers?The details are as follows.
You can learn every concept related to it here.Enjoy clipping :)
The three terminals of the FET are known as Gate, Drain, and Source.
It is a voltage controlled device, where the input voltage controls by the output current.
In FET current used to flow between the drain and the source terminal. And this current can be controlled by applying the voltage between the gate and the source terminal.
So this applied voltage generate the electric field within the device and by controlling these electric field we can control the flow of current through the device.
The three types of rectifiers in just 18 slides. Learn and enjoy the concepts. This PowerPoint presentation not only tells about the working and principles of rectifiers but also determines the disadvantages and advantages of different rectifiers. This PowerPoint presentation also has circuit diagrams that suit your necessities. This PPT can be written as an answer for a long type of question too.
The three terminals of the FET are known as Gate, Drain, and Source.
It is a voltage controlled device, where the input voltage controls by the output current.
In FET current used to flow between the drain and the source terminal. And this current can be controlled by applying the voltage between the gate and the source terminal.
So this applied voltage generate the electric field within the device and by controlling these electric field we can control the flow of current through the device.
The three types of rectifiers in just 18 slides. Learn and enjoy the concepts. This PowerPoint presentation not only tells about the working and principles of rectifiers but also determines the disadvantages and advantages of different rectifiers. This PowerPoint presentation also has circuit diagrams that suit your necessities. This PPT can be written as an answer for a long type of question too.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
2. What are clipper circuits?
• Clippers Circuits are used to remove the part of a signal
that is above or below some defined reference level.
• One of the simple example of a clipper is the half-wave
rectifier – that circuit basically cut off everything at the
reference level of zero and let only the positive-going or
negative-going portion of the input waveform.
• Clipping circuits (also known as limiters, amplitude selector
or slicers)
• Depending on the orientation of the diode, the positive or
negative region of the input signal is “clipped” off.
4. Unbiased positive Clippers
Positive clippers are used to clip positive portions of the input signal and allow the
negative portions of the signal to pass through
• Figure below shows the input and output signal along with the positive clipper. The
positive cycle is completely clipped off by the clipper.
• During the positive half cycle of the input waveform, the diode ‘D’ is reverse biased,
which maintains the output voltage at 0 Volts. This causes the positive half cycle to be
clipped off. During the negative half cycle of the input, the diode is forward biased and so
the negative half cycle appears across the output.
5. Unbiased Negative clippers
Negative clippers are used to clip Negative portions of the input signal and allow the
positive portions of the signal to pass through
Figure shows the input and output signal along with the negative
clipper. The negative cycle is completely clipped off by the clipper.
The diode in forward biased configuration can be modelled as an close switch. This is
indicated in the figure. As the diode acts as closed switch, current flows through the
load and hence output appears across the load. This is the reason why the negative cycle
is completely clipped off.
6. Biased positive clipper
As shown earlier, we saw that the clipping of the signal
takes place as soon as the input signal goes positive. If we
want to change/adjust the clipping level of AC voltage,
then external biasing voltage must be used. The figure
given below shows a biased (series) clipper.
7. Working:
• A biased clipper comes in handy when a small portion of positive or negative half
cycles of the signal voltage is to be removed. When a small portion of the positive half
cycle is to be removed, it is called a biased positive clipper.
• It is similar to the series positive clipper in addition to a negative reference voltage in
series with a resistor; and here, during the positive half cycle, the output appears across
the resistor as a negative reference voltage. During the negative half cycle, the output is
generated after reaching a value greater than the negative reference voltage
• Instead of negative reference voltage a positive reference voltage is connected to obtain
series positive clipper with a positive reference voltage. During the positive half cycle,
the reference voltage appears as an output across the resistor, and during the negative
half cycle, the entire input appears as output across the resistor.
8. Biased negative Clipper
As shown earlier, we saw that the clipping of the signal
takes place as soon as the input signal goes negative. If we
want to change/adjust the clipping level of AC voltage, then
external biasing voltage must be used. The figure given
below shows a biased (series) clipper.
9. Working:
• A biased clipper comes in handy when a small portion of positive or negative half cycles of
the signal voltage is to be removed. When a small portion of the negative half cycle is to be
removed, it is called a biased negative clipper.
• Series negative clipper with positive reference voltage is similar to the series negative
clipper, but in this a positive reference voltage is added in series with the resistor. During the
positive half cycle, the diode start conducting only after its anode voltage value exceeds the
cathode voltage value.
• The series negative clipper with a negative reference voltage is similar to the series negative
clipper with positive reference voltage, but instead of positive Vr here a negative Vr is
connected in series with the resistor, which makes the cathode voltage of the diode as
negative voltage. Thus during the positive half cycle, the entire input appears as output
across the resistor, and during the negative half cycle, the input appears as output until the
input value will be less than the negative reference voltage
10. Clamper circuit
• A clamper is an electronic circuit that changes the DC level
of a signal to the desired level without changing the shape of
the applied signal. In other words, the clamper circuit moves
the whole signal up or down to set either the positive peak or
negative peak of the signal at the desired level.
• A clamper circuit is also called as a Level Shifter.
• Clamper circuits consist of energy storage elements like
capacitors. A simple clamper circuit comprises of a
capacitor, a diode, a resistor and a dc battery if required.
11. Types Of Clamper Circuits
• The direction of the diode in the clamping circuit determines
the clamper circuit type.
• The operation of a clamping circuit is mainly based on the
switching time constants of the capacitor. However,
capacitor in the circuit charges through the diode and
discharges through the load.
1. Negative clamper
2. Positive clamper
12. Negative Clamper
• The Negative Clamping circuit consists of a diode connected in
parallel with the load.
• The capacitor used in the clamping circuit can be chosen such
that it must charge very quickly and it should not discharge
very drastically. The anode of the diode is connected to the
capacitor and cathode to the ground.
• This type of clamping circuit shifts the input waveform in a
negative direction, as a result the waveform lies below a DC
reference voltage
13. • During the positive half cycle of the input, the diode is in
forward bias and as the diode conducts the capacitor charges
very quickly.
• During the negative half cycle of the input, the diode will be
in reverse bias and the diode will not conduct, the output
voltage will be equal to the sum of the applied input voltage
and the charge stored in the capacitor during reverse bias.
The output waveform is same as input waveform, but shifted
below 0 volts.
14. Positive Clamper
• The circuit of the positive clamper is similar to the negative
clamper but the direction of the diode is inverted in such a
way that the cathode of the diode is connected to the
capacitor.
• This type of clamping circuit shifts the input waveform in a
positive direction, as a result the waveform lies above a DC
reference voltage.
• A Clamping circuit restores the DC level. When a negative
peak of the signal is raised above to the zero level, then the
signal is said to be positively clamped.
15. • During the positive half wave cycle, output voltage of the
circuit will be the sum of applied input voltage and the
charge stored at capacitor.
• During the negative half wave cycle, the diode starts to
conduct and charges the capacitor very quickly to its
maximum value. The output waveform of the positive
clamper shifts towards the positive direction above the 0
volts