By Madeleine Catherine. Circuit. Publised at Sunday, December 17th 2017, 00:43:41 AM. An often used and sometimes confusing term in electronic circuits is the word ground. The ground is a circuit node to which all voltages in a circuit are referenced. In a constant voltage supply circuit, one terminal from each voltage supply is typically connected to ground, or is grounded. For example, the negative terminal of a positive power supply is usually connected to ground so that any current drawn out of the positive terminal can be put back into the negative terminal via ground.
By Madeleine Catherine. Circuit. Publised at Tuesday, December 26th 2017, 07:11:55 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.
By Sasha Sara. Circuit. Published at Wednesday, December 27th 2017, 06:37:54 AM. Since single-layer/single-sided PCBs only have their various circuits and electrical components soldered onto one side, they are easy to design and manufacture. This popularity means that they can be purchased at a low-cost, especially for high-volume orders. The low-cost, high volume model means they are commonly used for a variety of applications, including calculators, cameras, radio and stereo equipment, solid state drives, printers and power supplies.
By Sasha Sara. Diagram. Published at Wednesday, December 27th 2017, 05:29:58 AM. When working with circuits, you will often find something called a schematic diagram. These diagrams use symbols to illustrate what electronic components are used and where they’re placed in the circuit. These symbols are graphic representations of the actual electronic components.
By Madeleine Catherine. Circuit. Published at Wednesday, December 27th 2017, 05:09:44 AM. The concept of complex impedance introduces a unified representation for resistors, capacitors, and inductors, whereby a circuit’s frequency response from input to output can be determined using KVL and KCL, where each element is assigned the appropriate impedance. The key assumption to this point is that the input to the circuit must consist solely of DC and/or sinusoidal signals. Now, this analysis is be extended to include arbitrary input signals by using the mathematical techniques of Laplace transforms.
By Cyrielle Marjolaine. Amplifier. Published at Wednesday, December 27th 2017, 04:53:46 AM. Unlike the Class A amplifier mode of operation above that uses a single transistor for its output power stage, the Class B Amplifier uses two complimentary transistors (either an NPN and a PNP or a NMOS and a PMOS) for each half of the output waveform. One transistor conducts for one-half of the signal waveform while the other conducts for the other or opposite half of the signal waveform. This means that each transistor spends half of its time in the active region and half its time in the cut-off region thereby amplifying only 50% of the input signal.
By Charlotte Myriam. Diode. Published at Wednesday, December 27th 2017, 04:31:39 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.
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. A reliable way to verify the identity of the terminals is using a multimeter to figure out the forward current direction. On the resistance setting, Ω\OmegaΩ, the meter puts a small voltage on its test leads (this is why an ohm meter needs a battery). You use that small voltage to see which way current flows.
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