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MAX1574 180mA, 1x/2x, White LED Charge Pump in 3mm x 3mm TDFN
MAX1574 180mA, 1x/2x, White LED Charge Pump in 3mm x 3mm TDFN

... Driving Camera Strobes/Flashes The MAX1574’s 180mA output capability makes it suitable for driving white LED camera strobes/flashes. For example, the typical operating circuit drives a 3-LED flash module with up to 60mA/LED. To ensure 180mA total drive capability at low input voltages, increase C1 t ...
Introduction
Introduction

Strain Gages and Signal Conditioning
Strain Gages and Signal Conditioning

... By Dr. Sotiris Omirou ...
notes
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... perspective, there are three basic types of buses. We refer to the first two types using terminology that remind us of the known variables.  PV Buses: For type PV buses, we know Pk and |Vk | but not Qk or k. These buses fall under the category of voltage-controlled buses because of the ability to ...
Improved Power Quality AC/DC Converters
Improved Power Quality AC/DC Converters

... by these nonlinear loads are propagated throughout the power network. Voltage distortion is the result of these distorted currents passing through the series impedance of the system, as shown in Fig. 2. Harmonic current passing through the system impedance causes a voltage drop for each harmonic and ...
TPS312x Series Supervisory Circuits in Ultra
TPS312x Series Supervisory Circuits in Ultra

NSI50150AD - Adjustable Constant Current Regulator and LED Driver
NSI50150AD - Adjustable Constant Current Regulator and LED Driver

Legend 1) A 230-Volt electrical supply should be supplied to the
Legend 1) A 230-Volt electrical supply should be supplied to the

A nanomechanical resonator shuttling single electrons at radio
A nanomechanical resonator shuttling single electrons at radio

... a well defined geometry. Another advantage of nanomechanical resonators, machined out of Silicon-OnInsulator (SOI) material, is their insensitivity to thermal and electrical shocks as has been shown in their application for electrometry [5, 6]. This and the high speed of operation enable direct int ...
Hybrid power flow analysis : Combination of AC and DC
Hybrid power flow analysis : Combination of AC and DC

... Therefore, it has been constantly required to develop the efficient power flow analysis method with the widespread of computer technologies [1] and especially, as the increase of online application for wide area monitoring and control in the field, it might be more stressed to develop the reliable a ...
Prehospital Emergency care of electrical injuries
Prehospital Emergency care of electrical injuries

... the skull. The most common areas of ground are the heels. There may be multiple contact and ground points. Because high-voltage current often flows internally and can create massive muscle damage one should not attempt to predict the amount of underlying tissue damage from the amount of cutaneous in ...
Lecture_Lab4
Lecture_Lab4

ELEC 225L Circuit Theory I Laboratory Fall 2006
ELEC 225L Circuit Theory I Laboratory Fall 2006

... the Thévenin equivalent resistance directly by evaluating Rth = voc / isc. However, there are two potential problems with this approach. First, it is not a good idea in general to short the output of a signal source. Although many devices are designed to protect themselves in the event of a shorted ...
Fast, faster, fastest!
Fast, faster, fastest!

Equivalent Resistance
Equivalent Resistance

... constant Req is called “the equivalent resistance of circuit R as seen looking into the terminals ab”. This is frequently shortened to “the equivalent resistance of Circuit R” or “the resistance seen looking into a-b”. In some contexts, Req is called the input resistance, the output resistance or th ...
Zero Voltage Switching Resonant Power Conversion
Zero Voltage Switching Resonant Power Conversion

PV150 Comparison Document
PV150 Comparison Document

... Solar PV panel manufacturers quote the electrical output at standard test conditions (STC) with an irradiance level of 1000W/m2. Therefore, when commissioning a PV system, it is necessary to measure the level of irradiance at the same time as testing its electrical output, to know whether it is work ...
LT1513/LT1513-2 - Linear Technology
LT1513/LT1513-2 - Linear Technology

... voltage sensing. The R1/R2 voltage divider connected to FB defines Li-Ion float voltage at full charge, or acts as a voltage limiter for NiCd or NiMH applications. FB is the inverting input to the voltage error amplifier. Input bias current is typically 300nA, so divider current is normally set to 1 ...
JB Operators Manual
JB Operators Manual

... This document consolidates much of the information that is available in numerous formal documents issued by Oceanworks, engineering drawings, design notes and correspondence. The goal is to provide the operators of the JB all of the information they need in a concise format in one place. However, th ...
TLV7256 - Texas Instruments
TLV7256 - Texas Instruments

... TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous mater ...
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doc - Cornerstone Robotics

... extent photovoltaic cells. Roboticists usually use motors that are rated for 6, 12, or 24 volts because the power source, batteries, is normally available in these voltages. 12 Volt batteries are preferred when motors and 5 volt logic are powered from the same source. 5 Volt voltage regulators requi ...
batteries - Current Generation
batteries - Current Generation

... each other. For example: a well insulated home not only requires less heating and cooling, but also less energy to distribute and circulate this conditioned air. Correctly placed windows not only heat the home, but can also contribute a great deal of natural light, thus reducing both heating and lig ...
End Fed Half Wave Antenna
End Fed Half Wave Antenna

operating instruction
operating instruction

... When the test leads are shorted together in this range, the meter will display 02.0. The residual reading must be subtracted from the reading obtained in step 4 when this range is used. For example, when measuring 100MΩon the 400m Ωrange, the display will read 102.0, from which the 20 residual is su ...
What is a Power Supply?
What is a Power Supply?

... Switching power supplies convert commercial AC power into high-frequency DC power using the high-speed switching of semiconductors built into the switching power supply. Switching power supplies are so compact, light, and efficient that they are used as power supplies by most ...
< 1 ... 1073 1074 1075 1076 1077 1078 1079 1080 1081 ... 1974 >

Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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