By Alix Loane. Diagram. Publised at Saturday, July 29th 2017, 15:03:18 PM. Production circuit boards typically start out as thin sheets of fiberglass (about 1mm thick) that are completely covered on both sides with very thin sheets of metal (typically copper). A "standard" circuit board might use a 1 ounce copper process, which means that one ounce of copper is evenly spread across 1 square foot of circuit board. During the manufacturing process, wire patterns are "printed" onto the copper surfaces using a compound that resists etching (hence the name Printed Circuit Board or PCB). The boards are subjected to a chemical etching process that removes all exposed copper. The remaining, un-etched copperforms wires that will interconnect the circuit board components, and small pads that define the regions where component leads will be attached.
By Sasha Sara. Diagram. Publised at Tuesday, July 25th 2017, 11:46:43 AM. Knowing how to read circuits is a very useful skill that will help you out all the time. especially if you start messing around with building little electronics projects.
By Sasha Sara. Diagram. Publised at Friday, July 28th 2017, 13:28:14 PM. Variable resistors and potentiometers each augment the standard resistor symbol with an arrow. The variable resistor remains a two-terminal device, so the arrow is just laid diagonally across the middle. A potentiometer is a three-terminal device, so the arrow becomes the third terminal (the wiper).
By Sasha Sara. Circuit. Published at Wednesday, December 27th 2017, 06:37:54 AM. An electric current is defined as free flow of electrons and the motivating force behind that free flow of electrons is called Voltage. Voltage is the measurement of potential energy that would move the electrons between two points. Voltage is the push that the electrons require to move within a circuit. Voltage is measured by Volt and Current is measured by Ampere.
By Sasha Sara. Diagram. Published at Wednesday, December 27th 2017, 05:29:58 AM. A digital circuit is constructed of a power supply, devices, and conduction nets. Some nets provide circuit inputs from the “outside world”; in a schematic, these input nets are generally shown entering the left side of component and/or the overall circuit. Other nets present circuit outputs to the outside world; these nets are generally shown exiting the schematic on the right. In the sample schematic below, circuit components are shown as arbitrary shapes, nets are shown as lines, and inputs and outputs are denoted by connector symbols.
By Madeleine Catherine. Circuit. Published at Wednesday, December 27th 2017, 05:09:44 AM. Ohm’s law states that the current through a conductor between two points is directly proportional to the potential difference across those two points. It means that more the resistance lesser current would flow. I=V/R This would apply to any component of a circuit. For example conductors would increase the current flow and the inductors would decrease it.
By Cyrielle Marjolaine. Amplifier. Published at Wednesday, December 27th 2017, 04:53:46 AM. So if you have followed everything so far, we have three separate grounds; the signal return, the power supply return, and the chassis. I find that all must interconnect at a single place to avoid having any conductor contaminated with something from one of the others. I suppose that putting signal on a power conductor would not be likely to cause the power supply any problems, but the reverse results in serious issues.
By Charlotte Myriam. Diode. Published at Wednesday, December 27th 2017, 04:31:39 AM. A diode conducts strongly in the direction of the black arrow, and essentially 000 current can flow in the opposite direction. A diode made of silicon has a forward voltage between 0.60−0.75V.
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. If you apply a negative voltage to a diode, so the −-−cathode terminal is higher voltage than the +++anode terminal, this puts us on the left side of the iii-vvv curve. We say the diode is reverse biased. In the reverse direction, the current is very close to zero, just ever so slightly negative.
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