Mindblown: a blog about philosophy.
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Advantages of PLC`s
There are many advantages of PLCs. But some of the main ones are as follows: The control software is stored locally, so in the event of a building energy management system failure, the PLC can carry on. The connections between the PLC inputs and outputs are made by the software and not by lots of…
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PLC Operation.
The basic operation of a PLC is to perform a pre-programmed output, depending on the input signal, by following a set of rules. The PLC completes the following stages in its basic operation. First, there is the input scan, which detects the state of the inputs. Then, the program scan, to see what needs to be done.…
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Main Parts of a PLC:
First, we have the input modules or field sensors. These are the physical connections between the outside world and the PLC. These can be: Digital inputs, such as Simple On – Off switches Bi metallic temperature strips Presence or motion sensors Or even a Float switch These digital inputs can only provide information on whether something in…
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PLC Basics Explained
What is a PLC PLC stands for programmable logic controller. There are many variations but they typically look something like this. A Programmable Logic Controller is basically a small computer that can carry out pre-programmed outputs based on inputs and a set of specific rules. They are used in commercial and industrial applications to control…
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Application of Power Electronics
It is literally impossible to list all the applications of power electronics today; it has penetrated almost all the fields where electrical energy is in the picture. This trend is an ever increasing one especially with present trends of new devices and integrated design of power semiconductor devices and controllers. The ease of manufacturing has…
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5V Regulator Design
Voltage regulator. Learn how to make a 5V regulator using capacitors, LM7805 regulator and Schottky diode, learn how the circuit works and also how to build your own PCB printed circuit board, how to order a PCB and how to solder the boards electronic components together. This is what happens when we supply to much…
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Full Wave Bridge Rectifier
The most common method used is the full wave bridge rectifier. This uses 4 diodes. The AC supply is connected between diodes 1 and 2, with the neutral between 3 and 4. The DC positive output is connected between diodes 2 and 3, and the negative between diodes 1 and 4. In the positive half…
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Full Wave Rectifier
We can create a full wave rectifier simply by using a centre tapped transformer and two diodes. A centre tapped transformer just has another wire on the secondary side, which is connected to the centre of the transformer coil, allowing us to use the full length of the transformer or just half of it. Because…
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Half Wave Rectifier
If we looked at an AC supply, with a step down transformer which reduces the voltage, the electrons are flowing forward and backwards. So, the load experiences a sine wave. The load could be anything from a resistor, a lamp, a motor etc. If we inserted a diode, the diode will only allow current to…
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Full Wave Bridge Rectifier
Learn about the full wave bridge rectifier, the half wave rectifier the full wave rectifier, center tapped transformers, diodes, load, oscilloscope, waveform, DC, AC, voltage current, capacitors, bleeder resistor to learn how full wave bridge rectifiers work. This is a full wave bridge rectifier. It’s used to power our electronic circuits, so we’re going to…
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