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Qucs - A Tutorial
Qucs - A Tutorial

... The major problem in this design is the fact that the needed current on the LNA is not mentioned in the already measured S parameters from the manufacturer. This is one of the reasons why, we need specicaly a non linear model to describe the transistor. Of course a preliminary calculus could be done ...
Dell Compellent SC280 Dense Enclosure
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... Efficiency that drives your data center The high-density Dell Compellent SC280 enclosure is up to 2.8 times denser than traditional 2U 3.5” disk-drive enclosure solutions, offering 67.2TB of storage per rack unit. Easily increase storage capacity for your Dell Compellent Storage Center SAN and Compe ...
High Temperature (>200  C) Isolated Gate Drive Topologies for
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... primary to secondary coupling capacitance Cc . Small Lσ leads to high switching speeds and a small Cc ensures low commonmode currents resulting from the high dv/dt levels of the JFET Drain-Source voltage uds . Furthermore, it should be noted that in practice a voltage overshoot Uov (Fig. 15) at turn ...
AD8074
AD8074

... slew rate will give a pessimistic result. The primary cause of overshoot in these amplifiers is the presence of large reactive loads at the output and insufficient series isolation of the load. However, it is possible to overdrive these amplifiers with 1 V, subnanosecond input-pulse edges. The ensui ...
Shure Phonograph Pickups
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... mass of the lever cartridge makes possible the use of an aluminum tone arm for the first time. N o springs or counter-weights are used, and an accurate, uniform needle force of 1'/8 ounces is maintained. The arm has been scientifically curved to minimize tracking error and produce the best results. ...
Alberta Reliability Standard Generator Operation for Maintaining Network Voltages VAR-002-AB-1.1b
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... R2 The operator of an aggregated generating facility, subject to requirement R3 and the ISO’s consent to operate otherwise, must only operate such aggregated generating facility with the voltage regulating system in service, in voltage control mode and controlling voltage. R3 Each operator of a gene ...
BDTIC www.BDTIC.com/infineon  Industrial Power Control
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... latency needs to be ensured, especially for the pulse events, which need to be delivered within a biologically realistic time window (cf. Section 2.2). The latency crucially depends on the architecture of the packet flow. As there are nine possible sources for neural events and configuration packets, ...
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Chapter 3 Clocked circuits
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Feedback Analysis and Design of RF Power Links for Low

... link such that a reasonable amount of power may be received in several tiny secondaries. A theoretical model of RF links has been described in [6] who focused on operating at conditions of critical coupling. In critically coupled conditions, the magnitude of the voltage transfer function from the pr ...
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... [2. 13] R. Ho et al., “Efficient on-chip global interconnects,” in IEEE Symp. VLSI Circuits Dig. Tech. Papers, Jun. 2003, pp. 271–274. [2. 14] C. Svensson, “Optimum voltage swing on on-chip and off-chip interconnect,”IEEE J. Solid-State Circuits, vol. 36, no. 7, pp. 1108–1112, Jul. 2001. [2. 15] P. ...
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... Automatic fault restart keeps the application running without needing to stop the motor, avoiding production loss from down time. Verify Menu lists any parameters that have been changed from their original default settings for easy maintenance and inspection. Monitors display total operation time of ...
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... the middle of the shut down window if the PWM input is left floating by the controller IC. An adaptive anti-shoot-through control scheme is implemented in order to avoid cross conduction between the high side MOSFET and the low side MOSFET. This adaptive scheme allows for the use of a variety of dif ...
Powerful Siren - Hobbielektronika
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... 10u capacitors is discharged and both transistors are off. When the push button switch is pressed to 10u capacitor will charge via the 22k resistor. This voltage is applied to the base of the BC108B which will turn on slowly. When the switch is released the capacitor will discharge via the 100k and ...
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... where higher attenuation levels must be tolerated. This mode is selected by connecting the mode select pins to the supplies, MS+ to VDD and MS– to VSS. The low output mode is selected by connecting both mode select pins MS+ and MS– to GND. This mode provides a controlled output swing with lower outp ...
40G QPSK and DQPSK Modulation
40G QPSK and DQPSK Modulation

nemmani_paper
nemmani_paper

... (C) Time-to-digital converter: The time-to-digital converter compares the input reference clock and oscillator divided output and generates the phase difference word. The operation is performed as follows. The phase/frequency detector (PFD) at the input of the TDC generates UP & DN pulses. A digital ...
Create smarter, more effi cient white goods An industry-leading portfolio of cost-effective,
Create smarter, more effi cient white goods An industry-leading portfolio of cost-effective,

... offering the widest selection of ARM7 and ARM9 microcontrollers. That means you’ll always find the right core, the right memory size, and the right mix of peripherals for your application. The LPC family provides an added level of flexibility, too, since you can reuse software code, hardware, and desi ...
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... chemical sensors proposed here potentially superior to conventional devices in all aspects of the design criteria previously mentioned. The SAW velocity for AIN (6000 m/s) is higher, by about a factor of 2, than any other material that h as been used in the construction of SAW devices. In addition, ...
review: design of high radix addition in deep submicron technology
review: design of high radix addition in deep submicron technology

... In [6] the ternary logic base circuit is design. The resistance of channels can be change by altering the length-towidth ratio of the PMOS and NMOS channels. Thus, the resistance of the circuit is directly proportional to its L/W ratio which can be effectively used to change the resistance of transi ...
Alberta Reliability Standard Voltage and Reactive Control VAR-001-AB- 1a4
Alberta Reliability Standard Voltage and Reactive Control VAR-001-AB- 1a4

... (b) the reactive power to be achieved by the generating unit, aggregated generating facility, power plant or industrial complex. R6 The ISO must monitor the status of all transmission reactive power resources, automatic voltage regulators, voltage regulating systems and power system stabilizers. R7 ...
Radiation-Hard/High-Speed Parallel Optical Links  K.K. Gan
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... engine. The ASIC is designed using a 130 nm CMOS process to enhance the radiation-hardness. The eye diagram is open, satisfying the IEEE specification with good margin. The added functionalities to make the optical engine more reliable and easier to operate are also successful. This includes the abi ...
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Transmission line loudspeaker

A transmission line loudspeaker is a loudspeaker enclosure design (topology) that uses an acoustic transmission line within the cabinet, compared to the simpler enclosures used by sealed (closed) or ported (bass reflex) designs. Instead of reverberating in a fairly simple damped enclosure, sound from the back of the bass speaker is directed into a long (generally folded) damped pathway within the speaker enclosure, which allows far greater control and use of speaker energy, and the resulting sound.Inside a transmission line loudspeaker, is a (usually folded) pathway into which the sound is directed. The pathway is often covered with varying types and depths of absorbent material, may vary in size or taper, and may be open or closed at its far end. Used correctly, such a design ensures that undesired resonances and energies, which would otherwise cause undesirable auditory effects, are instead selectively absorbed or reduced (""damped"") due to the effects of the duct, or alternatively only emerge from the open end in phase with the sound radiated from the front of the driver, enhancing the output level (""sensitivity"") at low frequencies. The transmission line acts as an acoustic waveguide, and the padding both reduces reflection and resonance, and also slows the speed of sound within the cabinet to allow for better tuning.Transmission line loudspeakers designs are more complex to implement, making mass production difficult, but their advantages have led to acclaim for a number of manufacturers such as IMF, TDL, PMC, KVART & BØLGE and the like. As a rule, transmission line speakers tend to have exceptionally high fidelity low frequency response far below that of a typical speaker or subwoofer, into the infrasonic (British company TDL's studio monitor range from the 1990s quoted their frequency responses as starting from as low as 7 Hz depending upon model) at sensitivity 96 dB, without need for a separate enclosure or driver. Acoustically, TL speakers roll off slower at low frequencies and provide better driver control than standard reflex cabinet designs, are less sensitive to positioning, and tend to create a very spacious soundstage. Modern TL speakers were described in a 2000 review as ""match[ing] reflex cabinet designs in every respect, but with an extra octave of bass, lower LF distortion and a frequency balance which is more independent of listening level"".Although more complex to design and tune, and not as easy to analyze and calculate as other designs, the transmission line design is valued by several smaller manufacturers, as it avoids many of the major disadvantages of other loudspeaker designs. In particular, the basic parameters and equations describing sealed and reflex designs are fairly well understood, the range of options involved in a transmission line design mean that the general design can be somewhat calculated but final transmission line tuning requires considerable attention and is less easy to automate.
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