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MAX8662/MAX8663 Power-Management ICs for Single-Cell, Li+ Battery-Operated Devices General Description
MAX8662/MAX8663 Power-Management ICs for Single-Cell, Li+ Battery-Operated Devices General Description

... Note 1: Limits are 100% production tested at TA = +25°C. Limits over the operating temperature range are guaranteed through correlation using statistical quality control (SQC) methods. Note 2: Input withstand voltage. Not designed to operate above VDC = 6.5V due to thermal-dissipation issues. Note 3 ...
LTC3857-1 - Low IQ, Dual, 2-Phase Synchronous Step
LTC3857-1 - Low IQ, Dual, 2-Phase Synchronous Step

... The 50μA no-load quiescent current extends operating life in battery-powered systems. The LTC3857-1 features a precision 0.8V reference and a power good output indicator. A wide 4V to 38V input supply range encompasses a wide range of intermediate bus voltages and battery chemistries. Independent TR ...
Electricity Hands-On #1
Electricity Hands-On #1

... battery. If a battery has a charge of 6 volts, each Coulomb of charge has 6 Joules of energy. Using your textbook p. 414, a Joule is a unit of ___________ which is __________x__________. How many volts are in your battery? ________ So, how many Joules of energy does each Coulomb of electrons produce ...
PDF datasheet, specs
PDF datasheet, specs

... The measurement results provide the peak-peak value, maximum, minimum as well as the frequency corresponding to the maximum amplitude in the spectrum analysis of the AC component of the output signal. ...
Protecting PV systems. Technical info
Protecting PV systems. Technical info

... Box Photovoltaic Source Circuits ...
SP385E
SP385E

... With the Air Discharge Method, an ESD voltage is applied to the equipment under test (EUT) through air. This simulates an electrically charged person ready to connect a cable onto the rear of the system only to find an unpleasant zap just before the person touches the back panel. The high energy pot ...
Local Expansion Network Input Module (LEN-I1/ME)
Local Expansion Network Input Module (LEN-I1/ME)

... Figure 2) that should blink intermittently when the power is turned on and proper communication is occurring. If the LED does not blink, there is a loss of communication and/or power. Power Connection ...
LT1033 - 3A Negative Adjustable Regulator
LT1033 - 3A Negative Adjustable Regulator

... The adjustment pin of the LT1033 may be bypassed with a capacitor to ground, C1, to reduce output ripple, noise, and impedance. These parameters scale directly with output voltage if the adjustment pin is not bypassed. A bypass capacitor reduces ripple, noise and impedance to that of a 1.25V regulat ...
MAX5974A Evaluation Kit Evaluates: General Description Features
MAX5974A Evaluation Kit Evaluates: General Description Features

... The EV kit is a galvanically isolated 25W DC-DC converter using the active-clamped, current-mode PWM controller in a forward, coupled-inductor feedback topology. The EV kit receives power from an IEEE 802.3af/at-compliant PSE and a UTP cable connected to the EV kit’s RJ45 MagJack. The EV kit uses a ...
STEPPER MOTORS
STEPPER MOTORS

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SP483E 数据资料DataSheet下载
SP483E 数据资料DataSheet下载

... touches the back panel. The high energy potential on the person discharges through an arcing path to the rear panel of the system before he or she even touches the system. This energy, whether discharged directly or through air, is predominantly a function of the discharge current rather than the di ...
AP7217
AP7217

... is stable with any small ceramic output capacitors of 1.0μF or higher value, and the temperature coefficients of X7R or X5R type. Additional capacitance helps to reduce undershoot and overshoot during transient. For PCB layout, the output capacitor must be placed as close as possible to OUT and GND ...
CPG.0 Single busbar gas-insulated cubicles Up to 36 kV
CPG.0 Single busbar gas-insulated cubicles Up to 36 kV

AT4101261265
AT4101261265

... In this research we are investigate the controlling and enhancing or modulation power flow in a transmission line using a static synchronous series compensator (SSSC). At present studies it include detailed PWM techniques controlled for SSSC, are conducted in control circuits. In this proposed techn ...
Using ADS8411 in a Multiplexed Analog Input Application (slaa285a.HTM, 8 KB)
Using ADS8411 in a Multiplexed Analog Input Application (slaa285a.HTM, 8 KB)

... step of 4 V because of MUX switching. So, even if the signal bandwidth is low, the driving OPA needs to settle from 0 V to 4 V (or 4 V to 0 V) within one ADC sampling frame. When selecting the operational amplifier, one has to ensure that it can settle from 0 V to 4 V (or from 4 V to 0 V) within the ...
BQ24750A 数据资料 dataSheet 下载
BQ24750A 数据资料 dataSheet 下载

... The bq24750A charges two, three, or four series Li+ cells, supporting up to 10 A of charge current, and is available in a 28-pin, 5x5-mm QFN package. The bq24750A controls external switches to prevent battery discharge back to the input, connect the adapter to the system, and to connect the battery ...
MAX9205/MAX9207 10-Bit Bus LVDS Serializers General Description Features
MAX9205/MAX9207 10-Bit Bus LVDS Serializers General Description Features

... The MAX9205/MAX9207 serializers transform 10-bitwide parallel LVCMOS/LVTTL data into a serial highspeed bus low-voltage differential signaling (LVDS) data stream. The serializers typically pair with deserializers like the MAX9206/MAX9208, which receive the serial output and transform it back to 10-b ...
FEATURES
FEATURES

... limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affi ...
Interleaving Contributes Unique Benefits to Forward and Flyback
Interleaving Contributes Unique Benefits to Forward and Flyback

... A 200-W interleaved forward converter design example illustrates how an interleaved topology can reduce the size and cost of power filtering components and also enhance dynamic load response. In this comprehensive design review, the converter operates from a standard 48-V telecom input voltage and o ...
Nodal and Loop Analysis cont'd (8.8)
Nodal and Loop Analysis cont'd (8.8)

Software - Indico
Software - Indico

... Understanding the behavior of the circuit during the power-converter shut down, with particular attention to the oscillations of the aperture voltages, and their difference. In each sector, about 60% of the dipoles present an unexpected behavior: during the PC shut-down, U_QSO reaches values ~5 time ...
AC/DC   and   DC/AC   Multilevel... Regulation. Applied To the Asynchronous Machine
AC/DC and DC/AC Multilevel... Regulation. Applied To the Asynchronous Machine

... Tensions UC1 and UC2 illustrated in Figure 7.a. are very close and the voltage difference (UC1 - UC2) oscillates around a value small compared to that of UC1 and UC2. This difference is most important capabilities of low value, causing the instability of the input voltage to the inverter, and which ...
MAX8790A Six-String White LED Driver with Active General Description
MAX8790A Six-String White LED Driver with Active General Description

... the light source. A current-mode step-up controller drives up to six parallel strings of multiple series-connected LEDs. Each string is terminated with ballast that achieves ±1.5% current regulation accuracy, ensuring even brightness for all LEDs. The MAX8790A has a wide input-voltage range from 4.5 ...
ADR525 数据手册DataSheet 下载
ADR525 数据手册DataSheet 下载

... band gap concept to produce a stable, low temperature coefficient voltage reference suitable for high accuracy data acquisition components and systems. The devices use the physical nature of a silicon transistor base-emitter voltage (VBE) in the forward-biased operating region. All such transistors ...
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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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