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Title Layout
Title Layout

...  Temperature (water and air)  Contamination (fungi and molds) Figure 1 ...
Surge Protection Done Right
Surge Protection Done Right

... tor within the diode bridge. The capacitor within the bridge integrates the incoming surge voltage, controlling the peak let-through voltage, dv/dt, and offering a measurement of the residual surge energy (1/2C∆V2) passing through the inductor. A very large dv/dt developed across this large capacito ...
Document
Document

Determining the Air Gap Length of an Axial Flux Wound Rotor
Determining the Air Gap Length of an Axial Flux Wound Rotor

... The air gap length of the designed axial flux wound rotor (AFWR) synchronous generator is determined properly according to the design parameters. One of the distinct advantages of an axial flux (AF) machine is its adjustable air gap. An AF generator’s performance might be controlled by adjusting its ...
Switched Reluctance Motors
Switched Reluctance Motors

... Freescale Semiconductor reserves the right to make changes without further notice to any products herein. Freescale Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale Semiconductor assume any liability ...
Switched Mode Converters (4 Quadrants)
Switched Mode Converters (4 Quadrants)

... Low BF ripple (magnet current precision) & Low HF Ripple (EMC) ...
LTM8023 - 2A, 36V DC/DC Step-Down uModule Regulator
LTM8023 - 2A, 36V DC/DC Step-Down uModule Regulator

... acceptable, and can yield improved dynamic response, if it is necessary. Again, it is incumbent upon the user to verify proper operation over the intended system’s line, load and environmental conditions. Ceramic capacitors are small, robust and have very low ESR. However, not all ceramic capacitors ...
BR1200 - BR2200 Static Bar
BR1200 - BR2200 Static Bar

Experimental investigation of the metals vaporization and ionization
Experimental investigation of the metals vaporization and ionization

AN-979 The Practical Limits of RS-485 (Rev. A)
AN-979 The Practical Limits of RS-485 (Rev. A)

... 4000 feet. Advances in technology continue to push these limits. At long distances the practical limitation is dominated by the rise time degradation due to the cable. The approximate delay associated with 100Ω cable is 1.5 ns/foot. Therefore, 4000 feet of cable will cause 6 μs of delay—which limits ...
Background Lecture - IEEE Real World Engineering Projects
Background Lecture - IEEE Real World Engineering Projects

... • Shorter trip times in high density urban areas • Quieter ...
NTE74LS196 Integrated Circuit TTL − Presettable
NTE74LS196 Integrated Circuit TTL − Presettable

... During the count operation, transfer of information to the outputs occurs on the negative−going edge of the clock pulse. The NTE74LS196 features a direct clear which when taken low sets all outputs low regardless of the state of the clocks. The NTE74LS196 may also be used as a 4−bit latch by using t ...
PPT: 555 - godinweb
PPT: 555 - godinweb

... transistor causes the capacitor to discharge to ground. ◊ Ra must have a minimum value of 25 to prevent a short circuit of the power supply through the discharge transistor. ...
Evaluates:  MAX2620 MAX2620 Evaluation Kit ________________General Description ____________________________Features
Evaluates: MAX2620 MAX2620 Evaluation Kit ________________General Description ____________________________Features

... Measure the MAX2620 TANK pin’s input impedance with feedback capacitors C3 and C4 but without the resonant circuit. This measurement takes into account parasitic circuit elements that are specific to board lay- ...
AAT3220 数据资料DataSheet下载
AAT3220 数据资料DataSheet下载

... Ceramic composition capacitors are highly recommended over all other types of capacitors for use with the AAT3220. Ceramic capacitors offer many advantages over their tantalum and aluminum electrolytic counterparts. A ceramic capacitor typically has very low ESR, is lower cost, has a smaller PCB foo ...
Low-Ripple 1.8V/1.6V Spread-Spectrum
Low-Ripple 1.8V/1.6V Spread-Spectrum

... Capacitors with a Y5V or Z5U temperature characteristic are generally not recommended for use with the LM2773. These types of capacitors typically have wide capacitance tolerance (+80%, -20%) and vary significantly over temperature (Y5V: +22%, -82% over -30°C to +85°C range; Z5U: +22%, -56% over +10 ...
all  other  uses,  in  any ... © 2012 IEEE
all other uses, in any ... © 2012 IEEE

Field assessment of induction motor efficiency
Field assessment of induction motor efficiency

Loading Considerations When Paralleling Transformers
Loading Considerations When Paralleling Transformers

transistor
transistor

... and using them. Until the 1920s radio was in Morse Code and most radios were operated either by radio amateurs (hams), commercial stations in the business of sending messages, or by the Navy. Vacuum triodes were too expensive for most hams, so most of their radios used these crystal detectors. Some ...
Lisa D.4 Nõuded elektrijaamade mudelitele Annex D.4
Lisa D.4 Nõuded elektrijaamade mudelitele Annex D.4

... (complex and simplified) and report under what conditions the results comply with each other. The report shall include under what conditions the simplified model is valid i.e. under what conditions the results from the simplified model coincide with the results from the complex model. The report sha ...
ICDesignMethodology(China)
ICDesignMethodology(China)

4N25 - Vishay
4N25 - Vishay

... Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all liability arising out of the application or use ...
unit 5 PPT
unit 5 PPT

... Capacitive Transducers The principle of these type is that variations in capacitance are used to produce measurement of many physical phenomenon such as dynamic pressure, displacement, force, humidity, etc. 0.088 KA( N  1) C Pico farads An equation for capacitance is d Where K= dielectric constan ...
System Operating Limit Definition and Exceedance
System Operating Limit Definition and Exceedance

... Owner’s or the Generation Owner’s Facility Ratings Methodology per approved FAC-008-3. Normal voltage limits are typically applicable for the pre-Contingency state while emergency voltage limits are applicable for the post-Contingency state. SOL exceedance with respect to these voltage limits occur ...
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Alternating current



Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).
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