By Valentine Sybille. Circuit. Publised at Monday, November 20th 2017, 09:05:47 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 Alix Loane. Circuit. Published at Thursday, December 07th 2017, 12:22:34 PM. Voltage is measured in units of Joules per Coulomb, known as a Volt (V). It is important to remember that voltage is not an absolute quantity, rather, it is always considered as a relative value between two points. In an electronic circuit, the electromagnetic problem of voltages at arbitrary points in space is typically simplified to voltages between nodes of circuit components such as resistors, capacitors, and transistors
By Alix Loane. Diode. Published at Tuesday, December 05th 2017, 12:19:51 PM. When the diode is reverse biased (the anode connected to a negative voltage and the cathode to a positive voltage), as shown in Fig. 2.0.6, positive holes are attracted towards the negative voltage on the anode and away from the junction. Likewise the negative electrons are attracted away from the junction towards the positive voltage applied to the cathode. This action leaves a greater area at the junction without any charge carriers (either positive holes or negative electrons) as the depletion layer widens. Because the junction area is now depleted of charge carriers it acts as an insulator, and as higher voltages are applied in reverse polarity, the depletion layer becomes wider still as more charge carriers away from the junction. The diode will not conduct with a reverse voltage (a reverse bias) applied, apart from a very small ‘Reverse Leakage Current’ (IR), which in silicon diodes is typically less than 25nA. However if the applied voltage reaches a value called the ‘Reverse Breakdown Voltage’ (VRRM) current in the reverse direction increases dramatically to a point where, if the current is not limited in some way, the diode will be destroyed.
By Bertille Solange. Diagram. Published at Monday, December 04th 2017, 11:38:56 AM. The voltage source, such as a battery, is needed in order to cause the current to flow through the circuit. In addition, there needs to be a conductive path that provides a route for the electricity to flow. Finally, a proper circuit needs a load that consumes the power.
By Lydie Honorine. Circuit. Published at Saturday, December 02nd 2017, 11:34:14 AM. Electronic signals are represented either by voltage or current. The timedependent characteristics of voltage or current signals can take a number of forms including DC, sinusoidal (also known as AC), square wave, linear ramps, and pulsewidth modulated signals. Sinusoidal signals are perhaps the most important signal forms since once the circuit response to sinusoidal signals are known, the result can be generalized to predict how the circuit will respond to a much greater variety of signals using the mathematical tools of Fourier and Laplace transforms.
By Charlotte Myriam. Circuit. Published at Friday, December 01st 2017, 09:55:05 AM. A simple low-pass filter circuit, which allows low frequency signals to pass through the circuit while attenuating high-frequency signals, can be made using a resistor and capacitor in series.The transfer function of this filter can be determined by analyzing the circuit as a voltage divider,
By Alix Loane. Power. Published at Wednesday, November 29th 2017, 09:01:12 AM. Linear regulators are simple voltage regulator circuits commonly used in electronics. This paper briefly discusses how linear regulators work, their advantages and disadvantages, variations on the linear regulator, and important datasheet parameters.
By Sasha Sara. Circuit. Published at Monday, November 27th 2017, 07:42:24 AM. Resistors, capacitors, and inductors are the fundamental components of electronic circuits. In fact, all electronic circuits can be equivalently represented by circuits of these three components together with voltage and current sources.
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