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5-0 - Amateur Radio Equipment
5-0 - Amateur Radio Equipment

...  Several buttons labeled in frequency (MHz), or  Several buttons labeled in wavelength (m or cm), or  1 or 2 buttons (Up & Down). ...
Selecting the Proper Wire Size for 4 and 8 Ohm
Selecting the Proper Wire Size for 4 and 8 Ohm

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CY36602610
CY36602610

... In order to promote the integration of wind farms into the electrical network, Flexible AC transmission Systems, FACTS, are widely used. The FACTS STATCOM system is one of them. ST ATCOM has some advantages, such as better performance, quick response, smaller in size, less cost, and capable of satis ...
Ch 17 Electromagnetic Induction
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Aalborg Universitet Capacitor-Supported System
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... placed at the input line and is activated, depending on the dc-link voltage level, resulting in a stable dc-link voltage, but at the expense of reducing the input power factor of the entire system. In [15], [17] and [22], an H-bridge circuit with a current source (inductor) is used to minimize the r ...
S904T/S904TR MOSMIC for TV–Tuner Prestage with 9 V
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... 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA ) in the USA 3. Council Decision 88/540/EEC and 91/690/ ...
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Measurement Systems
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IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
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... time reactive power increased and the voltage magnitude decreases[7, 8]. To overcome the voltage drop as described above, it is required compensation equipment to maintain the voltage magnitude remains at the desired level. There are many type of reactive compensation devices, such as: capacitor ban ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
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... circuit output, the subsequent gates also evaluate and discharge in a domino fashion. After the node voltages settle to a steady state, all of the high- Vth transistors are strongly cut off, significantly reducing the subthreshold leakage current. Also this technique, does not require any additional ...
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... 41. When two resistors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5. Which of the following statements about the resistances is correct? (A) Both R1 and R2 are greater than 5. (B) Both R1 and R2 are equal to 5. (C) Both R1 and R2 are ...
AM34232235
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... angle control of converter design. The thyristor of converter receive conduction the firing pulse either mode of continuous or discontinuous operation. To simplify single phase dual converter, two of these full converter are connected back to back as shown in figure 2. The system will provide four q ...
Applying Power Supplies
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... Once a suitable power supply is selected, equal care must be taken in applying the unit both electrically and mechanically. If good fundamental engineering practices are not followed in the use of power supplies and the layout of power systems, equipment performance and/or reliability will be advers ...
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FPF2310/12/13/13L Dual-Output Adjustable Current Limit Switch FPF23 1
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... point-of-load (POL) application power requirements. Dual-output current can be used where two USB ports are powered by hosts or self-powered hubs. The FPF231X family offers control and protection while providing optimum operation current for safe design practices. The core of each switch is a 75mΩ ( ...
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distributed mppt based cascaded h-bridge multilevel inverter

... grid currents in abc coordinates are converted to dq coordinates and regulated through proportional-integral (PI) coordinates, which is then converted back to three phases. The distributed MPPT control scheme for the single-phase system is nearly same. The total voltage controller gives the magnitud ...
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... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor doe ...
a matrix converter producing two phase supply from single
a matrix converter producing two phase supply from single

... As shown in figure 1. matrix converter is ac to ac converter, which is also called as direct energy conversion. The direct AC/AC converter provides a direct connection between the input and output terminals without an intermediate energy storage element through an array of semiconductor switches. It ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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