By Jessica Mireille. Diagram. Publised at Saturday, December 23rd 2017, 14:53:38 PM. Electronic components are often assembled and interconnected on a flat surface known as a circuit board. The several types of existing circuit boards may be divided into two broad categories: those intended for prototype or experimental circuits; and those intended for production and/or commercial sale. Circuit boards used for experimental work are often referred to as breadboards or protoboards. Breadboards allow engineers to construct circuits quickly, so that they can be studied and modified until an optimal design is discovered. In a typical breadboard use, components and wires are added to a circuit in an ad hoc manner as the design proceeds, with new data and new understanding dictating the course of the design. Since breadboard circuits exist only in the laboratory, no special consideration need be given to creating reliable or simple-to-manufacture circuits – the designer can focus exclusively on the circuits behavior. In contrast, circuit boards intended for production or commercial sale must have highly reliable wires and interconnects, permanent bonds to all components, and topographies amenable to mass production and thorough testing. And further, they must be made of a material that is reliable, low-cost, and easy to manufacture. A fiberglass substratewith copper wires (etched from laminated copper sheets) has been the PCB material of choice for the past several decades. The Digilent board is a simple example of such a board. Note that most often, production circuit board designs are finalized only after extensive breadboard phases. Components are permanently affixed to production boards using the soldering process.
By Bertille Solange. Power. Publised at Friday, December 29th 2017, 04:58:06 AM. There are two types of voltage regulators, shunt and series. The name comes from where the control element (typically a transistor) is placed. Except for the special case of a Zener diode shunt regulator which is open-loop, virtually all voltage regulators are closed-loop high-gain proportional control systems.
By Cyrielle Marjolaine. Amplifier. Published at Wednesday, December 27th 2017, 04:53:46 AM. However, by altering the position of this Base bias voltage, it is possible to operate an amplifier in an amplification mode other than that for full waveform reproduction. With the introduction to the amplifier of a Base bias voltage, different operating ranges and modes of operation can be obtained which are categorized according to their classification. These various mode of operation are better known as Amplifier Class.
By Charlotte Myriam. Diode. Published at Wednesday, December 27th 2017, 04:31:39 AM. A diode is a one-way conductor. It has two terminals, the anode or positive terminal and the cathode or negative terminal. Ideally a diode will pass current when its anode is made more positive than its cathode, but prevent current flow when its anode is more negative than its cathode. In the circuit symbols shown in Fig. 2.0.2, the cathode is shown as a bar and the anode as a triangle. On some circuit diagrams the anode of a diode may also be indicated by the letter ‘a’ and the cathode by the letter ‘k’.
By Madeleine Catherine. Circuit. Published at Wednesday, December 27th 2017, 03:48:10 AM.
By Valentine Sybille. Diode. Published at Wednesday, December 27th 2017, 03:25:22 AM. You need not be familiar with the “diode equation” to analyze simple diode circuits. Just understand that the voltage dropped across a current-conducting diode does change with the amount of current going through it, but that this change is fairly small over a wide range of currents. This is why many textbooks simply say the voltage drop across a conducting, semiconductor diode remains constant at 0.7 volts for silicon and 0.3 volts for germanium. However, some circuits intentionally make use of the P-N junction’s inherent exponential current/voltage relationship and thus can only be understood in the context of this equation. Also, since temperature is a factor in the diode equation, a forward-biased P-N junction may also be used as a temperature-sensing device, and thus can only be understood if one has a conceptual grasp on this mathematical relationship.
By Alix Loane. Diagram. Published at Wednesday, December 27th 2017, 03:00:34 AM. How to calculate voltage across a resistor with pictures total current. Voltage current gnomes lyza the townspeoples new signature cookie showed relationship between v. Working out current voltage and resistance in a bridge circuit enter image description here. Related rates archives every step calculus current resistance
By Bertille Solange. Diagram. Published at Wednesday, December 27th 2017, 02:16:25 AM. An electronic circuit is a circular path of conductors by which electric current can flow. A closed circuit is like a circle because it starts and ends at the same point forming a complete loop. Furthermore, a closed circuit allows electricity to flow from the (+) power to the (-) ground uninterrupted.
By Sasha Sara. Circuit. Published at Wednesday, December 27th 2017, 02:05:06 AM. If the components are connected in a parallel format they would be termed to be a parallel series. In this sort of a connection all the components would receive the same voltage, while the current would be divided amongst the components.
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