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R.C.N. Pilawa-Podgurski, A.D. Sagneri, J.M. Rivas, D.I. Anderson, and D.J. Perreault, Very-High-Frequency Resonant Boost Converters, IEEE Transactions on Power Electronics, Vol. 24, No. 6, pp. 1654-1665, June 2009.
R.C.N. Pilawa-Podgurski, A.D. Sagneri, J.M. Rivas, D.I. Anderson, and D.J. Perreault, Very-High-Frequency Resonant Boost Converters, IEEE Transactions on Power Electronics, Vol. 24, No. 6, pp. 1654-1665, June 2009.

... However, when precise selection of the diode’s die area is possible during design, reducing loss may prove an overriding concern. Optimal diode size depends on the distribution of loss between the diode forward drop and the circulating currents in the lossy diode capacitance. Assuming the total capa ...
CIRCUIT FUNCTION AND BENEFITS
CIRCUIT FUNCTION AND BENEFITS

... to be used elsewhere in a system (as illustrated in Figure 1), the output from REFA or REFB must first be buffered. The OP177 features the highest precision performance of any op amp currently available and is a perfect choice for a reference buffer. Note that the AD8138 operates on dual 5 V supplie ...
Nanoscience - LampX Web Server
Nanoscience - LampX Web Server

... This drive current has been maintained even as the transistors have been made smaller. The capacitance of the components decreases as they become smaller and the supply voltage can be decreased which has resulted in an increase in the switching speed as transistors have been made smaller. Most non-s ...
LM122 LM322 LM3905 Precision Timers
LM122 LM322 LM3905 Precision Timers

... diode to protect the transistor from inductive kick-back. A boost pin is provided on the LM122 to increase the speed of the internal comparator. The comparator is normally operated at low current levels for lowest possible input current. For timing periods less than 1 ms, where low input current is ...
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Structured Questions on Mechanics

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... 3) When Schottky diode (SBD) remove In the situation that connection is opened and also DC/DC is activated, SW terminal voltage becomes more than rated voltage due to a lack of parts that can accept the current accumulated inside the coil. Consequently IC might be destroyed. To prevent the IC destru ...
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... This report covers the electrical and mechanical performance of Economy RF coaxial connector .Testing was performed at Shanghai Engineer Center Laboratory between 24Nov08 and 30Dec08.And test file numbers for these testing are TR-60108-E and TR-60110-E .These documentations are on file at and availa ...
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... Autotransformer Starting (continued) • To Start – All S contacts CLOSE – Line terminals connect to high-side of autotransformers. Low-sides of autotransformers are connected together. ...
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SP-35XMV DC Ammeter for Battery Powered Systems 3 1/2 Digit 0.48” LCD
SP-35XMV DC Ammeter for Battery Powered Systems 3 1/2 Digit 0.48” LCD

... Texmate’s exclusive optional Push-On Connectors combine an edge card connector and a 10 position screw terminal block. Push-On Connectors are ordered preconfigured for each specific power supply voltage and each optional power supply available for the SP-Series. ...
Low Voltage Power Circuit Breaker
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... Zone-Selective Interlocking (ZSI), or zone restraint, has been available since the early 1990s. ZSI is designed to limit thermal stress caused by shortcircuits on a distribution system. ZSI will enhance the coordination of the upstream and downstream molded case circuit breakers for all values of av ...
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... sleek and modern appearance and due to its small and unobtrusive size, this fixture will become almost invisible on the structure to which it will be installed. The STR9 is a totally sealed, low voltage fixture with an external power supply, so there should be no need to ever access the fixture for ...
Introduction to(GMAW) Gas Metal Arc Welding
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... •Requires special gas mixtures •Decreased warpage is possible •Decreased need for jigs or ...
LTC4444-5 - Linear Technology
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... pull-down on the driver outputs is the prevention of crossconduction current. For example, when BG turns the low side (synchronous) power MOSFET off and TG turns the high side power MOSFET on, the voltage on the TS pin will rise to VIN very rapidly. This high frequency positive voltage transient wil ...
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... 3.1 INSTALLATION OF SURGE PROTECTION DEVICES ............................................................... 5 ...
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Switch Debounce Filter

... In a typical switching circuit, a pull up or pull down resistor is connected to the wiper of the switch. In our case, a 20K-ohm resistor is connected between the switch wiper and –24V. The logic input circuit used in our test equipment is the Systran DID48 logic input module. This module has an inp ...
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... each high frequency (HF) cycle the voltage on the lamp is increased. At a period specified by the lamp frequency (LF) oscillator, the voltage on the lamp is discharged to ground and the polarity of the inductive charging is reversed. By this means, an alternating positive and negative voltage is dev ...
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... displays (LCDs). The input supply voltage range of the MAX8739 is from 1.8V to 5.5V. The device also includes a logic-controlled, high-voltage switch with adjustable delay. The step-up DC-DC converter provides the regulated supply voltage for the panel source driver ICs. The converter is a high-freq ...
MAX8627 Low V , 20µA IQ, 1MHz Synchronous Boost Converter with True Shutdown
MAX8627 Low V , 20µA IQ, 1MHz Synchronous Boost Converter with True Shutdown

... capacitive element in the feedback loop, these highgain amplifiers typically take hundreds of microseconds to respond to a load step and return to steady state. As a result, the voltage can droop by as much as 6% or more during the recovery time. In portable equipment where the output load can chang ...
signals - Usenix
signals - Usenix

... characteristic impedance (resistance to an AC signal). The material used and the way the cable is manufactured determine the characteristic impedance. If the impedance of the cable does not match the circuitry on both ends, you might end up with reflection. Reflection means that part of the signal i ...
Electrical Battery Model for Use in Dynamic Electric Vehicle
Electrical Battery Model for Use in Dynamic Electric Vehicle

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Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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