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Distribution Transformers
Distribution Transformers

... to a minimum. Unbalanced ampere-turns create forces during short circuits that push the high voltage and low voltage coils apart vertically. By minimising this imbalance vertical forces are correspondingly reduced, thus making the design stronger under short circuit stresses. The large areas present ...
MAX9310 1:5 Clock Driver with Selectable LVPECL Inputs and LVDS Outputs General Description
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... The MAX9310 is a fast, low-skew 1:5 differential driver with selectable LVPECL/HSTL inputs and LVDS outputs, designed for clock distribution applications. This device features an ultra-low propagation delay of 345ps with 45.5mA of supply current. The MAX9310 operates from a 2.375V to 2.625V power su ...
03_AC Machines
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...  A large percentage of small AC motors are classed as induction motors. This implies that there is no current supplied to the rotating coils. These coils are closed loops which have large currents induced in them because of their low resistance.  An induction motor must achieve a rotating magnetic ...
4. Power limitation control at high marine currents
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... maintenance constraints and increase the robustness. So when the marine current speed is higher than the rated value, a fixed-pitch MCT is not able to limit the extracted power by pitch control as in classical wind turbines. Therefore, an appropriate generator-side control strategy should be applied ...
Touch (Leakage) Current Test
Touch (Leakage) Current Test

... • Definitions (UL 101, IEC 60990) • Touch current paths • Physiological effects of touch current (electric shock) • Body impedance models and “safe” voltage limits • Touch (Leakage) Current Test –Touch current instruments (meters) –Measurement circuits and procedures ...
Technical Specification for Variable Frequency Drives
Technical Specification for Variable Frequency Drives

... This motor controller shall produce an adjustable Alternating Current voltage/frequency output. It shall have an output voltage regulator to maintain correct output Volt/Hertz ratio despite incoming voltage variations. The Variable Frequency Drive(s) shall not induce excessive power losses in the mo ...
MAX14950 Quad PCI Express Equalizer/Redriver EVALUATION KIT AVAILABLE General Description
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... The MAX14950 is a quad equalizer/redriver designed to improve PCI Express® (PCIe) signal integrity by providing programmable input equalization at its receiver and programmable redrive circuitry. The output circuitry reestablishes deemphasis lost on the board and compensates for circuit-board loss. ...
IGC168T170S8RM
IGC168T170S8RM

... Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. The Infineon Technologies component described in this Data Sheet may be used in life-support devices or systems and/or automo ...
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Read Full Article - ADB Airfield Solutions

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a novel low power energy recovery full adder cell

... accurate estimation of the switched capacitance is critical. It is recommended to have between 50 and 100 simulation cycles for an accurate estimation of the capacitance [5]. A reduction in any of the appropriate components in the above equation will obviously reduce power consumption. Several desig ...
Build a Cool Blue Audio Level Meter for Your Speakers
Build a Cool Blue Audio Level Meter for Your Speakers

... The output of the filter bypasses the log amp on linear ranges, going to the panel meter, via the meter limiter. This precision limiter prevents signals beyond the limits of the panel meter from damaging it or banging the stops. LOG Range In log mode, there is only one range, because the meter cover ...
MAX3669 +3.3V, 622Mbps SDH/SONET Laser Driver with Current Monitors and APC General Description
MAX3669 +3.3V, 622Mbps SDH/SONET Laser Driver with Current Monitors and APC General Description

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EON Model EL3 - Controlled Power Company
EON Model EL3 - Controlled Power Company

... is used for the EON’s rectifier and inverter power sections. Also essential to the design, are the fiber optic cables for control and communications. Fiber optics allow for better isolation; and faster, more accurate, noise-free signals between processors. The EON provides reliable, regulated voltag ...
MAX14778 Dual ±25V Above- and Below-the
MAX14778 Dual ±25V Above- and Below-the

... The MAX14778 dual 4:1 analog multiplexer supports analog signals up to Q25V with a single 3.0 to 5.5V supply. Each multiplexer has separate control inputs to allow independent switching, making the device ideal for multiplexing different communications signals with the same connector pins. Extended ...
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Roentgen Radiometer DP-66 Geiger Counter
Roentgen Radiometer DP-66 Geiger Counter

... Sr-90 + Y-90 have an activity of 10 μCi allowing systematic testing and maintenance of the instrument’s components without breeching regulations in the safety manual. (Note: Calibration Source is removed due to US NRC import regulations) 1.2.11. Power Supply The instrument can be powered by: -- Two ...
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R.M.A. Dawson, Z. Shen, D.A. Furst, S. Connor, J. Hsu, M.G.Kane, R.G. Stewart, M.H. Lu, A. Ipri, J.C. Sturm, et al, "A Polysilicon Active Matrix Organic Light Emitting Diode Display with Integrated Drivers," SID Symposium Digest 30, 438 (1999).
R.M.A. Dawson, Z. Shen, D.A. Furst, S. Connor, J. Hsu, M.G.Kane, R.G. Stewart, M.H. Lu, A. Ipri, J.C. Sturm, et al, "A Polysilicon Active Matrix Organic Light Emitting Diode Display with Integrated Drivers," SID Symposium Digest 30, 438 (1999).

... level shifts all logic signals from [5, 0] volts to [5, -15] volts, so the display has a completely 5 volt interface except for the negative power supply. The logic block also generates all additional clocks necessary to drive the select circuit which is a shift register that controls pass gates for ...
dimming facts for led products
dimming facts for led products

... • ELV wall dimmers can be more expensive than incandescent or magnetic low voltage dimmers. • Smaller install base could mean replacing incompatible dimmers on retrofit projects. • ELV drivers should not be used with incandescent dimmers because doing so could cause any of the following malfunctions ...
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Accelerators (<1 MeV/n) for Low

... For low energy, linacs are generally considered more “straight forward” than circular machines There are various schemes to apply kinetic energy: - radio frequency (rf), induction, or static potential drop A dc electrostatic accelerator is a potential-drop type of linac with typical voltages up to s ...
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Power System 1 EEE 3231 Transmission Line

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1977 - HP Archive

Common Electrical Terms, Abbreviations and Definitions
Common Electrical Terms, Abbreviations and Definitions

... Common Electrical Terms, Abbreviations and Definitions…pg 2 The name "foot-candle" conveys "the illuminance cast on a surface by a one-candela source one foot away.” As natural as this sounds, this style of name is now frowned upon, because the dimensional formula for the unit is not foot · candela ...
BDTIC  Application Note No. 014
BDTIC Application Note No. 014

... supply voltage: VCE = VS - 0.65 V The voltage drop of approximately 0.65 V on Rext (i.e. between pins 3 and 4 of BCR400) is almost constant (Rext = 0.65 V x IC). In case a lower VCE is really required (e.g. to prevent exceeding of maximum VCE or VDS ratings), an additional resistor R = (VS - VCE -0. ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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