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MAX1714 High-Speed Step-Down Controller for Notebook Computers General Description
MAX1714 High-Speed Step-Down Controller for Notebook Computers General Description

... constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The MAX1714 achieves high efficiency at a reduced cost by eliminating the current-sense resi ...
Application Report www.BDTIC.com/TI Understanding Boost Power
Application Report www.BDTIC.com/TI Understanding Boost Power

... and includes switches and the output filter. This report addresses the boost power stage only and does not cover control circuits. The report includes detailed steady-state and small-signal analysis of the boost power stage operating in continuous and discontinuous modes. A discussion of power stage ...
HMC674LC3C 数据资料DataSheet下载
HMC674LC3C 数据资料DataSheet下载

... data latching pulse width is 60 ps. The HMC674LC3C operates in either Track (Transparent) Mode, where the output follows the logical value of the input, or the Latch (Hold) Mode, where the output value is held to the logical value of the comparison result of the input just prior to (LE - LE_bar) goi ...
EV Traction Dry Cell Performance
EV Traction Dry Cell Performance

EE 42/100 Lecture 19: AC Power
EE 42/100 Lecture 19: AC Power

... That’s because these components (such as capacitors) can only store or supply energy, but they cannot dissipate energy. Nevertheless they draw power and return power to a generator, and so they need to be taken into account. ...
(7.0 MB PowerPoint)
(7.0 MB PowerPoint)

Document
Document

... extensive in automotive applications, but also in cases where a DC voltage produced by rectification is used to supply secondary loads. The conversion is often associated with stabilizing, i.e. the input voltage is variable but the desired output voltage stays the same. The converse is also required ...
MAX8795A TFT-LCD DC-DC Converter with Operational Amplifiers General Description
MAX8795A TFT-LCD DC-DC Converter with Operational Amplifiers General Description

... included is 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-frequency (1.2MHz) current-mode regulator with an integrated 20V n-channel MOSFET that allows the use ...
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... in the case of PV Systems because solar cells can be inverter. These converter topologies can generate assembled in a number of separate generators. In this high-quality voltage waveforms with power way, they satisfy the requirements of the CHB-MLI, semiconductor switches operating at a frequency ne ...
Preliminary Datasheet  General Description
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... The OUT pin is used to turn on and turn off the power switch. When turning on the power switch, the OUT pin will output 30mA source current to support the base current of the power BJT. When turning off the power switch, the resistance between the OUT and GND will become to 5Ω The GND pin is the gro ...
BU4S584G2
BU4S584G2

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Lab 5. Coupling between signal lines
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FOD0720 Datasheet
FOD0720 Datasheet

... coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purp ...
A New Single-Phase Soft-Switching Power Factor Correction
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... which are used more frequently, create harmonics current and pollute the electricity network. Harmonics have a negative effect on the operation of the receiver, which is fed from the same network. Nowadays, engineers design all the electronic devices to meet the harmonic standards. AC–DC converters ...
AL8806Q Description Pin Assignments
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... L1, the LEDs and the schottky diode D1, and back to the supply rail, but it decays, with the rate of decay determined by the forward voltage drop of the LEDs and the schottky diode. This decaying current produces a falling voltage at R1, which is sensed by the AL8806Q. A voltage proportional to the ...
Reactance - schoolphysics
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... The variation of the resistance of a resistor and the reactance of an inductor and a capacitor with the applied voltage frequency (f) is shown in Figure 1. XC XL ...
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Green Book TOC - Teledyne Relays
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... DESCRIPTION These state-of-the-art solid-state power controllers (SSPCs) are designed for use in power controller applications. These SSPCs utilize the latest technology to provide low On-resistance output with complete short circuit and overload current protection. In addition, status output lines ...
SN75ALS056 数据资料 dataSheet 下载
SN75ALS056 数据资料 dataSheet 下载

... implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: Voltage values are with respect to network ground terminal. ...
Agilent AN 372-1 Power Supply Testing
Agilent AN 372-1 Power Supply Testing

... Switching power supplies address the disadvantages of linear power supplies (namely the low efficiency and relatively large size and weight), and are therefore a more effective and less costly solution for high power applications. The relative disadvantages occur in three areas when compared to line ...
HMC675LC3C 数据资料DataSheet下载
HMC675LC3C 数据资料DataSheet下载

... supports 10 Gbps operation while providing 100 ps propagation delay and 60 ps minimum pulse width with 0.2 ps rms random jitter (RJ). Overdrive and slew rate dispersion are typically 10 ps, making the device ideal for a wide range of applications from ATE to broadband communications. The reduced swi ...
DS1088C Fixed-Frequency EconoOscillator™ General Description Features
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... Note 6: This indicates the time elapsed between power-up and the output becoming active. An on-chip delay is intentionally introduced to allow the oscillator to stabilize. tSTAB is equivalent to approximately 512 clock cycles and will depend on the programmed oscillator frequency. Note 7: Output d ...
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1 speedboat energyteacher final edit

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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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