By Alix Loane. Motor. Publised at Friday, December 29th 2017, 20:40:03 PM. To make your own power supply you must have three key components: a transformer, bridge rectifier, and filter capacitor. The transformer’s current rating must be sufficient to adequately run all motors that will be run from it using the above current formula. The DC output voltage will be 1.4 times the transformer’s AC voltage rating of the secondary. For example, a 24VAC transformer secondary will provide about 34VDC at the output of the supply. The bridge rectifier’s voltage and current ratings must exceed what the supply will deliver. Finally the minimum filter capacitor size must be calculated.
By Bertille Solange. Motor. Publised at Monday, January 01st 2018, 05:05:03 AM. An unregulated power supply will be sufficient and is recommended for most applications because of its simplicity. If a motor with a large inertial load decelerates quickly it will act as an alternator and send voltage back to the drive which then sends it back to the power supply. Because many regulated power supplies feature protection circuitry this may cause the power supply to fault or reset; however, if the supply is unregulated it will simply get absorbed by the filter capacitor.
By Cyrielle Marjolaine. Diagram. Published at Thursday, July 13th 2017, 08:59:25 AM. Wiring diagrams use standard symbols for wiring devices, usually different from those used on schematic diagrams. The electrical symbols not only show where something is to be installed, but also what type of device is being installed. For example, a surface ceiling light is shown by one symbol, a recessed ceiling light has a different symbol, and a surface fluorescent light has another symbol. Each type of switch has a different symbol and so do the various outlets. There are symbols that show the location of smoke detectors, the doorbell chime, and thermostat. On large projects symbols may be numbered to show, for example, the panel board and circuit to which the device connects, and also to identify which of several types of fixture are to be installed at that location.
By Valentine Sybille. Circuit. Published at Monday, July 10th 2017, 06:11:26 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 Sasha Sara. Power. Published at Friday, July 07th 2017, 05:33:01 AM. It is important to understand that a regulator holds its output voltage fixed only when it is in constant voltage mode. In current limiting, the output voltage will be reduced as required to hold the load current at the set limiting value.
By Madeleine Catherine. Diagram. Published at Wednesday, July 05th 2017, 04:09:04 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 Charlotte Myriam. Circuit. Published at Tuesday, July 04th 2017, 03:38:49 AM. For DC signals, the linearity of the system implies that H is independent of Vin. For dynamic signals, the transfer function cannot in general be described simply. However, if the input is a sinusoidal signal then the output must also be a sinusoidal signal with the same frequency but possibly a different amplitude and phase. In other words, a linear system can only modify the amplitude and phase of a sinusoidal input.
By Madeleine Catherine. Circuit. Published at Saturday, July 01st 2017, 02:55:55 AM. When multiple components are connected in series, each component must carry the same current. When multiple components are connected in parallel, the total current is the sum of the currents flowing through each individual component. These statements are generalized as Kirchoff’s Current Law (KCL), which states that the sum of currents entering and exiting a node must be zero.
By Bertille Solange. Circuit. Published at Friday, June 30th 2017, 01:44:35 AM. If the components of the circuit are connected in one single path is it termed as series. The same current would flow through all the components while the voltage would differ from one component to another. For example you have lit three lamps in series to the same power source, the first one would receive more voltage than the last.
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