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International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.2, pp. 1787-1791
International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.2, pp. 1787-1791

... system of the intermittent unstable and critical operation of the collapse, and so on. Chaos movement studies have identified in the DC-DC converters, most of them because of bifurcation and chaos caused in the system [2]. In most practical situations, required stable operation is a period-1 operati ...
Fluke 1520 MegOhmMeter - Technical Diagnostic Services
Fluke 1520 MegOhmMeter - Technical Diagnostic Services

... Technical Data The Fluke 1520 MegOhmMeter is a handy insulation resistance tester that also measures voltage and checks connections with its Lo-Ohms function. ...
LM111/LM211/LM311 Voltage Comparator
LM111/LM211/LM311 Voltage Comparator

... result in oscillation, the printed-circuit layout should be engineered thoughtfully. Preferably there should be a groundplane under the LM111 circuitry, for example, one side of a double-layer circuit card. Ground foil (or, positive supply or negative supply foil) should extend between the output an ...
Y.MG325/452 Universal bipolar constant potential X-ray systems YXLON.Products
Y.MG325/452 Universal bipolar constant potential X-ray systems YXLON.Products

... value. Any fluctuation or deviation of set values is controlled and corrected within microseconds. These features make the system an excellent candidate not only for radiographic and radioscopic applications but also for scanning methods like tomography and even in the field of dosimetry. In additio ...
MAX7034 315MHz/434MHz ASK Superheterodyne Receiver General Description
MAX7034 315MHz/434MHz ASK Superheterodyne Receiver General Description

... need for a costly front-end SAW filter for most applications. Advantages of not using a SAW filter are increased sensitivity, simplified antenna matching, less board space, and lower cost. The mixer cell is a pair of double balanced mixers that perform an IQ downconversion of the RF input to the 10. ...
Three-level four-leg flying capacitor converter for renewable energy
Three-level four-leg flying capacitor converter for renewable energy

MAX1858 Dual 180° Out-of-Phase PWM Step-Down Controller with Power Sequencing and POR
MAX1858 Dual 180° Out-of-Phase PWM Step-Down Controller with Power Sequencing and POR

... The two independent regulators in the MAX1858 operate 180° out-of-phase to reduce input filtering requirements, reduce electromagnetic interference (EMI), and improve efficiency. This effectively lowers component cost and saves board space, making the MAX1858 ideal for cost-sensitive applications. D ...
P85324_ E50_MULTICANDELA_SPEAKER_SPEAKERSTROBE
P85324_ E50_MULTICANDELA_SPEAKER_SPEAKERSTROBE

... and #10 wood screws for stud mounting. If metal conduit is installed onto top and bottom conduit entrances, then an insulated grounding wire (18 AWG, supplied) must be connected between the top and bottom plate by using thread cutting screws (supplied) to provide electrical ...
15C02MH 数据资料DataSheet下载
15C02MH 数据资料DataSheet下载

... Mass (g) Unit 0.007 mm * For reference ...
Datasheet - Microchip
Datasheet - Microchip

... The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not desig ...
Asymmetrical Duty Cycle Controlled Edge Resonant Soft Switching
Asymmetrical Duty Cycle Controlled Edge Resonant Soft Switching

Electric Circuits II
Electric Circuits II

... setting. This week, we will replace batteries with power supplies. The power supply does exactly the same job as a battery (it is a constant voltage source), but it will not run down over time. In fact, a power supply and a battery will be represented by the same symbol in our circuit diagrams. We w ...
FJA13009 High Speed Switching F JA
FJA13009 High Speed Switching F JA

... A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ...
ISL32704E Datasheet
ISL32704E Datasheet

... 6. All voltages on the isolator primary side are with respect to GND1. All line voltages and common-mode voltages on the isolator secondary or bus side are with respect to GND2. 7. Differential I/O voltage is measured at the noninverting bus terminal A with respect to the inverting terminal B. 8. Sk ...
• 4- or 8-channel power amp systems—220 Watts RMS per channel
• 4- or 8-channel power amp systems—220 Watts RMS per channel

... volts. Frequency response at 1 watt under an 8-ohm load shall be 5 Hz to 20 kHz. Attenuation controls for each channel shall be located on the rear panel. A selection switch shall be provided for each channel on the rear panel to allow the enabling or bypass of a high-pass filter per channel. A gain ...
Evaluation Board EVAL-1EDI60I12AF
Evaluation Board EVAL-1EDI60I12AF

... Voltages exceeding the maximum values may lead to damage of the IGBT drivers and other circuitries. The +5V supply is generated on the board by using the Infineon voltage regulator TLE4264G. The regulator is used to supply input as well as output circuits of the evaluation board. In case a complete ...
WHM2025AE
WHM2025AE

LM217, LM317 1.2 V to 37 V adjustable voltage regulators Description -
LM217, LM317 1.2 V to 37 V adjustable voltage regulators Description -

... Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or other ...
ASR Battery supply for ASR Emitter Exclusive
ASR Battery supply for ASR Emitter Exclusive

...  In Standby the batteries are charged and the input stage is supplied with a low voltage to warm up the circuits. This ensures excellent sound quality immediately after switching ON the Emitter.  After switching ON, the amplifier is supplied from of the batteries. The charging transformer is disco ...
BD6962FVM
BD6962FVM

... Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect ...
Godoy, P.A., S. Chung, T.W. Barton, D.J. Perreault, and J.L. Dawson, “A Highly Efficient 1.95-GHz, 18-W Asymmetric Multilevel Outphasing Transmitter for Wideband Applications,” 2011 International Microwave Symposium , pp. 1-4, June 2011.
Godoy, P.A., S. Chung, T.W. Barton, D.J. Perreault, and J.L. Dawson, “A Highly Efficient 1.95-GHz, 18-W Asymmetric Multilevel Outphasing Transmitter for Wideband Applications,” 2011 International Microwave Symposium , pp. 1-4, June 2011.

... shows the measured PAE, drain efficiency, output power, and gain of the implemented Class-E GaN PA at 1.95 GHz. At the 40-dBm peak output power, the PAE is 62.5% with 13dB gain. The peak PAE is 67% with 20-V supply voltage. Although drain efficiency is better at lower supply voltage, the PAE is degr ...
1.2 V to 37 V adjustable voltage regulators
1.2 V to 37 V adjustable voltage regulators

... Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or other ...
Ohm`s Law (and Circuit Theory) Tutorial
Ohm`s Law (and Circuit Theory) Tutorial

... increase in current results in a substantial increase in voltage (this implies that for a given current flow, the voltage drop across a higher resistance is larger). The smaller the resistance, the flatter the graph would be which means it takes a larger current to produce a change in voltage. Physi ...
Lecture Notes - Signals and Spectra File
Lecture Notes - Signals and Spectra File

Lecture 31 Slides - Digilent Learn site
Lecture 31 Slides - Digilent Learn site

... • Which can be decomposed into two plots: ...
< 1 ... 1888 1889 1890 1891 1892 1893 1894 1895 1896 ... 2646 >

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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