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Light Bulbs in parallel and in series
Light Bulbs in parallel and in series

Design Considerations for Designing with Cree SiC Modules Part 1.
Design Considerations for Designing with Cree SiC Modules Part 1.

Atmel U3280M Transponder Interface for Microcontroller Features DATASHEET
Atmel U3280M Transponder Interface for Microcontroller Features DATASHEET

... The EEPROM allows byte-, word- and current address read operations. The read operations are initiated in the same way as write operations. Each read access is initiated by sending the START condition followed by the control byte which contains the address and the read mode. When the device has recei ...
Shipboard Electrical Equipment
Shipboard Electrical Equipment

... generator (MG) sets supply this power (usually 400 Hz). Any given ship has several MGs to provide power to specific loads. These MGs are often of different ratings. The rating of an MG set can be less than 1 kW or as large as 300 kW. MGs can also be used to provide electrical isolation. Isolation is ...
Higher EE pupil notes (8.3MB Word)
Higher EE pupil notes (8.3MB Word)

... b) As the light level decreases the resistance of the LDR increases. Calculate the reading on the voltmeter when the resistance of the LDR is 1600Ω. ...
XC1700Product Specification V4.0 (1/96)
XC1700Product Specification V4.0 (1/96)

AP7173  1.5A LOW DROPOUT LINEAR REGULATOR WITH PROGRAMMABLE SOFT-START
AP7173 1.5A LOW DROPOUT LINEAR REGULATOR WITH PROGRAMMABLE SOFT-START

... pin, use a 10kΩ to 1MΩ pull-up resistor to pull it up to a supply of up to 5.5V, which can be higher than the input voltage. Bias Input pin, provides input voltage for internal control circuitry. This voltage should be higher than the VIN. Enable pin. This pin should be driven either high or low an ...
The Mathematics of Log-Based Dynamic
The Mathematics of Log-Based Dynamic

... an opamp) will produce a sharp transition between regions of processing and no processing. It is possible to combine several types of controlvoltage processing into one circuit, by using diodes to switch control-voltage processor paths based on the output voltage from the detector. For example, in a ...
MAX6397/MAX6398 Overvoltage Protection Switch/Limiter Controllers Operate Up to 72V General Description
MAX6397/MAX6398 Overvoltage Protection Switch/Limiter Controllers Operate Up to 72V General Description

... The MAX6397/MAX6398 are small, high-voltage overvoltage protection circuits. These devices disconnect the output load or limit the output voltage during an input overvoltage condition. These devices are ideal for applications that must survive high-voltage transients such as those found in automotiv ...
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Instructions

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2 SuperCarrier Usage

... The fourth pin of Header H7 provides regulated +5v out of the SuperCarrier to power other circuits. The amount of current that this pin can provide is very limited and also depends on the input voltage into the SuperCarrier. If you have assembled the SuperCarrier without a voltage regulator, then yo ...
Waste heat energy harvesting using thermo electric generator
Waste heat energy harvesting using thermo electric generator

... A Thermoelectric power generator is a solid state device that provides direct energy conversion from thermal energy (heat) into electrical energy based on “Seebeck effect”. The thermoelectric power cycle, with charge carriers serving as the working fluid, follows the fundamental laws of thermodynami ...
Fuses - R Rated
Fuses - R Rated

... currents below the minimum interrupting rating of the fuse. Since multiple devices are used to provide protection it is very important that they be properly coordinated. The motor starter manufacturer typically chooses the proper fuse R-rating, overload relay, and contactor. The following guideline ...
design and process considerations for thick film surge resistors to
design and process considerations for thick film surge resistors to

CMOS Micromechanical Resonator Oscillator
CMOS Micromechanical Resonator Oscillator

... Oscillation builds up until either some form of nonlinearity or a designed automatic-level control circuit limits the amplitude. For oscillators controlled by quartz crystals, the nonlinearity usually appears in the sustaining circuit, where transistors enter the triode region at large voltage ampli ...
DC Current Source AC and DC Current Source
DC Current Source AC and DC Current Source

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AP2161/ AP2171 Description Pin Assignments
AP2161/ AP2171 Description Pin Assignments

... Over-current and Short Circuit Protection An internal sensing FET is employed to check for over-current conditions. Unlike current-sense resistors, sense FETs do not increase the series resistance of the current path. When an over-current condition is detected, the device maintains a constant output ...
batteries - Current Generation
batteries - Current Generation

... themselves to 12 volts nicely. Many lights and small appliances can be found at this voltage and efficiencies are high. On the down side, 12 volt suffers from high line loss problems. The solar modules and loads cannot be far from the battery bank. 24 volt systems are recommended for medium to large ...
Número de publicación
Número de publicación

... movable part; first actuator for wiring the movable part; first and second sets of three insulating posts, arranged on the fixed part along two corresponding rows; first and second disconnection contacts being respectively associated with the insulating posts and being electrically connectable to th ...
MAX5934/MAX5934A Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity
MAX5934/MAX5934A Positive High-Voltage, Hot-Swap Controllers with Selectable Fault Management and Status Polarity

... insertion and removal of circuit cards into a live backplane without causing glitches on the backplane power-supply rail. The MAX5934/MAX5934A feature a programmable analog foldback current limit, programmable undervoltage lockout, and programmable output-voltage slew rate through an external n-chan ...
LT8310 - 100Vin Forward Converter Controller
LT8310 - 100Vin Forward Converter Controller

... ≥ 1V. After an overcurrent shutdown, the pin sources only 5µA until VSS ≥ 1V, which provides an extended wake-up period that reduces power dissipation during repeated start-up retries (hiccup mode). Switching frequency and duty cycle are folded back until SS > 2.5V. Above 1V, the pin sources 50µA un ...
ONET4291PA 数据资料 dataSheet 下载
ONET4291PA 数据资料 dataSheet 下载

... resistors; two gain stages, which provide a typical gain of about 37 dB; and a CML output stage, which provides another 6-dB gain. The amplified data-output signal is available at the output terminals DOUT+ and DOUT–, which feature on-chip 2 × 50-Ω back-termination to VCC. A dc feedback stage compen ...
Question Bank - Saraswathi Velu College of Engineering
Question Bank - Saraswathi Velu College of Engineering

... ii) Derive the emf equation of DC Machine, how can its direction be obtained? 2. Explain the open circuit and load characteristics of DC generators? 3. Explain the various types of DC motors with suitable diagram showing the connection of field coils to armature? 4. i) Explain the swinburne’s test t ...
Application Notes - NXP Semiconductors
Application Notes - NXP Semiconductors

... Life support – These products are not designed for use in life support appliances, devices or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at th ...
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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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