The focus is on practical skills in using simple electronics to reinforce application of bio-inspired ideas. Many experiments will help working towards thesis projects. Controlling a servo motor in a bio-robotic environment Remote Trigger Understanding the kinematics of a robotic upper arm Remote Trigger Understanding the kinematics of a robotic upper arm - Interactive Remote Trigger Light sensing process in a neural circuit Remote Trigger Pattern recognition in a hardware neural network Remote Trigger Mechanism behind the movement of a Walker robot with 4 neurons Remote Trigger Interaction study with Neuronal Circuits Constructing a six core brain like circuit Remote Trigger Virtual Biophysics Lab Remote Trigger This lab will provide an online experience via remote equipment to study biophysics and biophysical techniques.
Filtering and removal of artifacts in Biosignals Point processes and models Analysis of Biosignals activity and artifacts Power spectrum calculations using different windows Study the changes in the PSDs by varying window width Temporal structure in EEG Motor unit firing pattern Modeling network activity as in biological circuits Modeling synaptic network connectivity Reconstructing Averaged Population Response Biosignal Import and Channel Analysis Time-frequency analysis of Biosignals.
Bioinformatics and Data Science in Biotechnology This lab is a connection of bioinformatics experiments performed using R programming. Neurophysiology Virtual Lab pilot Neurophysiology is the study of nervous system function. Neuron Simulation Virtual Lab pilot This lab uses a graphical web-based Neuron simulator and models a section of excitable neuronal membrane using the Hodgkin-Huxley equations. Modeling resting potentials in Neurons Modeling action potentials Modeling the delayed rectifier Potassium channels Modeling the sodium ion channel and its effects on neural signaling Current Clamp protocol Voltage Clamp Protocol Understanding Frequency-Current relationship Understanding first spike latency - current relationship Voltage-Current VI plot Effects of pharmacological blockers on action potential.
Biochemistry Virtual Lab I Biochemistry is the study of the chemical processes in living organisms. Biochemistry Virtual Lab II Biochemistry Virtual Lab II deals with topics like enzymology, purification of plant pigments and natural products as well as estimation of iodine value and saponification value of fats and oils.
Population ecology Virtual Lab I A population is a collection of individuals of the same species that live together in a region. Population ecology Virtual Lab II Population ecology is the study of populations especially population abundance and how they change over time.
Immunology Virtual Lab I The branch of biomedicine concerned with the structure and function of the immune system, innate and acquired immunity, the bodily distinction of self from no self, and laboratory techniques involving the interaction of antigens with specific antibodies. Immunology Virtual Lab II The branch of biomedicine concerned with the structure and function of the immune system, innate and acquired immunity, the bodily distinction of self from no self, and laboratory techniques involving the interaction of antigens with specific antibodies.
Microbiology Virtual Lab I The study of microorganisms, which are unicellular or cell-cluster microscopic organisms. Microbiology Virtual Lab II To study the biochemical properties of microorganisms, the various techniques employed in cultivation of fungi and viruses along with the molecular level analysis of microbial genome. Cell biology Virtual Lab I Cell biology is an exciting and dynamic area that helps discover the fascinating world of cells.
Cell biology Virtual Lab II Cell biology is an exciting and dynamic area that helps discover the fascinating world of cells. Bioinformatics Virtual Lab I Bioinformatics is a field which using techniques of informatics to gather, store, analyse and integrate biological data. Thus it utilizes only the one-half cycle of the input signal. So the polarity of the output terminals keeps unchanged and obtains a unidirectional current through the load.
It converts the complete cycles of the AC signal to DC. Both positive and negative half cycles of the AC signal is converted to a unidirectional flow of current. A center tapped full wave rectifier works only with a center tap transformer or with a similar common potential point across the terminals.
The center tap act as a common zero potential terminal in both half cycles. Hence the current flow through D1 and the load resistance, from terminal A to center tap. Current flows through D2 and load resistance, from the B terminal to the center tap of the transformer.
In the center tap rectifier, the output DC voltage will be half of the total output voltage of the secondary winding. Because the load is always on half of the secondary winding. The bridge rectifier consists of 4 diodes in a bridge circuit configuration.
From a center tap rectifier, the bridge rectifier has a difference only in the circuit arrangement. Because in a center tap rectifier the transformer winding should consider separately. The bridge rectifier has an advantage over the center tap, that is it works without a center tapped transformer or a common ground. Current flows through D4, load resistance and D1. The biasing of the diodes alternates in each half cycle and creates a same polarity across the load. Hence, in both half cycles the load resistance has the same direction of the current.
The arithmetic average of all the instantaneous values of a signal is called as its average value. The area under the curve is the Integral of function f x in the interval from a to b. And the base length is the difference between the limits b and a. The average value of a sinusoidal alternating quantity for a complete cycle will be equal to zero.
Because, the positive and negative half cycle is equal in magnitude and thus the total value cancels out on summation. Negative half cycles are absent in the output wave form of a half wave rectifier.
So, in order to find the average value of the rectifier, the area under the positive half cycle has divided by the total base length. In a full wave rectifier, the negative polarity of the wave will be converted to positive polarity. So the average value can be found by taking the average of one positive half cycle. So during calculations, the average voltage can be obtained by substituting the value of maximum voltage in the equation for V DC. The RMS value of an alternating current is the equivalent DC value of an alternating or varying electrical quantity.
RMS value of an AC current produces the same amount of heat when an equal value of DC current flows through the same resistance.
The RMS value of a sine wave can be calculated by just taking the half cycle region only. Because the area of positive half cycle squared and negative half cycle squared have the same values.
So the derivation will be same as it for a full wave rectifier. In a half wave rectifier, the negative half cycle will be removed from the output. The peak factor is defined as the ratio of the maximum value to the RMS value of an alternating quantity. This is not as efficient from the transformer perspective because current flows in only one half of the secondary during each positive and negative half cycle of the AC input. If a second pair of diodes is included as in figure 6.
One can also view this arrangement to be the same as adding a center tap to the secondary winding in the full-wave bridge rectifier from figure 4. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Skip to content. Dhirendra Yadav. What is Rectifier? Half-wave rectification: In half wave rectification, either the positive or negative half of the AC wave is passed, while the other half is blocked. Half wave rectifier using one diode The output DC voltage of a half wave rectifier, given a sinusoidal input, can be calculated with the following ideal equations: Full-wave rectification: A full-wave rectifier converts both the positive and negative halves of the input waveform to a single polarity positive or negative at its output.
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