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SP385E
SP385E

... accept TTL or CMOS inputs and output the RS-232 signals with an inverted sense relative to the input logic levels. Typically the RS-232 output voltage swing is ±9V for 5V supply and ±4.2V for 3.3V supply. Even under worst case loading conditions of 3kΩ and 2500pF, the output is guaranteed to be ±5V ...
TPS65011 数据资料 dataSheet 下载
TPS65011 数据资料 dataSheet 下载

... The TPS65011 is an integrated power and battery management IC for applications powered by one Li-Ion or Li-Polymer cell and which require multiple power rails. The TPS65011 provides two highly efficient, step-down converters targeted at providing the core voltage and peripheral, I/O rails in a proce ...
OOOOHMM - Urbana School District 116
OOOOHMM - Urbana School District 116

... drops that aren’t too high. When voltage drops are high, so is the current, and high current causes more heat to generated. More heat means more random thermal motion of the atoms in the resistor. This, in turn, makes it harder for current to flow, so resistance goes up. In the circuit problems we d ...
Voltage Fluctuations in the Electric Supply System
Voltage Fluctuations in the Electric Supply System

... reactive power Q, connected to a power system with an impedance of resistance R, and reactance X, as illustrated in Figure 3. The voltage VR seen by the customer can usually be regulated by operating the system voltage VS at a slightly higher value to ensure VR remains at the required value, e.g. 23 ...
LABORATORY WORK 1
LABORATORY WORK 1

Multi-Channel LCD Gamma Correction Buffer
Multi-Channel LCD Gamma Correction Buffer

... current switching. The VCOM channel has increased output drive of > 100mA and can handle even larger capacitive loads. The BUF07703 is available in the HTSSOP PowerPAD™ package for dramatically increased power dissipation capability. The BUF06703 and BUF05703 are available in standard TSSOP-16 and ...
TX-o I A Transistor Computer with a 256 by 256 Memory
TX-o I A Transistor Computer with a 256 by 256 Memory

... are connected in such a manner that no two subassemblies on the same sense winding section are common to the same X or Y drive line; see Fig. 5. It should be noted that with this method of connection the voltage induced in the sense winding by the half-selected cores is equal to that induced in a 64 ...
Physics, Chapter 34: Alternating Currents
Physics, Chapter 34: Alternating Currents

... of current is a maximum; that is, when the current itself is zero. The current and voltage relationships for an inductor are drawn as a function of time in Figure 34-3. We describe these phase relationships by saying that the voltage across an inductor leads the current through it by 90°. The word l ...
IOSR Journal of Electronics & Communication Engineering  (IOSR-JECE)
IOSR Journal of Electronics & Communication Engineering (IOSR-JECE)

... The world is facing an energy crisis as well as significant environmental problems. It is well known that fossil fuels such as petroleum, natural gas and coal are the main resources for generating electricity and at the same time major contributors to environmental problems. Renewable energy is view ...
Nuclear Power Plant Electrical Power Supply System
Nuclear Power Plant Electrical Power Supply System

... outcome must be investigated for purpose of validation of the calculated constraints. III. VOLTAGE CONSTRAINTS It is normal for grid voltage to sway, as grid voltage is dependent of total system production and consumption of reactive power, and in the case of absence of the feeding ...
Ch.19
Ch.19

Normalization and Conditioning of Nickel Metal Hydride Batteries
Normalization and Conditioning of Nickel Metal Hydride Batteries

... • Batteries can be charged in many ways to produce certain results. - Charge #1 fast charges batteries for electric vehicles applications. - Charge #2 recovers batteries that have been unused for an extended period of time. ...
STEVAL-ILL017V1
STEVAL-ILL017V1

... The VIPer17 device is an offline converter with an 800 V rugged power section, a PWM control, overcurrent protection, overvoltage and overload protection, hysteretic thermal protection, soft-start and safe auto-restart after the removal of a fault condition. The brown-out protection function is embe ...
Modifying The Exterior Lighting Replacing rear
Modifying The Exterior Lighting Replacing rear

+ R
+ R

... drops that aren’t too high. When voltage drops are high, so is the current, and high current causes more heat to generated. More heat means more random thermal motion of the atoms in the resistor. This, in turn, makes it harder for current to flow, so resistance goes up. In the circuit problems we d ...
Monitoring System
Monitoring System

AD7870/AD7875/AD7876 LC2MOS Complete, 12
AD7870/AD7875/AD7876 LC2MOS Complete, 12

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... energy at smooth sinusoidal voltage at the contracted magnitude level and frequency. However, in practice, power systems, especially the distribution systems, have numerous nonlinear loads, which significantly affect the quality of the power supply. As a result of these nonlinear loads, the purity o ...
$doc.title

... † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to ...
model ps250 installation and service
model ps250 installation and service

... C. Power Supply Circuit Board Assembly. The power supply printed circuit board contains circuitry that provides DC operating voltage to units in a SelecTone system and maintain a charge level on the batteries when AC power is available. It also includes logic circuitry that controls the AC power LE ...
ch26
ch26

... Although an electric current is a stream of moving charges, not all moving charges constitute an electric current. If there is to be an electric current through a given surface, there must be a net flow of charge through that surface. Two examples are given. 1. The free electrons (conduction electro ...
Physical IC debug – backside approach and nanoscale challenge
Physical IC debug – backside approach and nanoscale challenge

... Beam (FIB) milling. As a derivative from this process, a locally ultra thin silicon device can be processed, creating a back surface as work bench for breakthrough applications of nanoscale analysis techniques to a fully functional circuit through chip backside. Several applications demonstrate the ...
The V-Star 1100 Charging System
The V-Star 1100 Charging System

... The rectifier has the simple job of converting the voltage that comes from the alternator, which is AC or alternating current, to DC, which is direct current. The regulator makes sure that the total voltage going to the battery from the rectifier is at a safe level for the battery. Typically around ...
Castle Creations MAMBA Micro X
Castle Creations MAMBA Micro X

... Yes, with purchase of optional sensor harness. (Castle P/N 011-0108-00) ...
Multiple Meters in One Compact Unit
Multiple Meters in One Compact Unit

< 1 ... 1096 1097 1098 1099 1100 1101 1102 1103 1104 ... 2982 >

Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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