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Distance Relays - GE Grid Solutions
Distance Relays - GE Grid Solutions

... and later its T3 contact, both time delays being independently adjustable. Therefore, it can be seen that a value of impedance within the Z2 circle, but outside the Z1 circle, will result in tripping in T2 time. And finally, a value of Z outside the Z1, and Z2 circles, but within the Z3 circle, will ...
Aalborg Universitet Li, Helong
Aalborg Universitet Li, Helong

MAX3222E/MAX3232E/MAX3237E/MAX3241E ±15kV ESD
MAX3222E/MAX3232E/MAX3237E/MAX3241E ±15kV ESD

... inputs are protected to ±15kV using IEC 1000-4-2 AirGap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge, and ±15kV using the Human Body Model. The MAX3237E’s logic and receiver I/O pins are protected to the above standards, while the transmitter output pins are protected to ±15kV using the Huma ...
CHAPTER 2 Harmonic Analysis of Star-Delta Inverter
CHAPTER 2 Harmonic Analysis of Star-Delta Inverter

... and Assoc. Prof. Dr. Murat FAHRİOĞLU for their updates and corrections on this work. Finally, I would like to thank to Samet BİRİCİK for his help and support in every stage of this work. ...
802.3at PSE Load Compliance Testing
802.3at PSE Load Compliance Testing

... Under 802.3af, short circuit behaviors were very similar to inrush overload responses including requirements for limiting output current when loads exceeded a defined threshold. Under 802.3at, the “short circuit” region is actually below the current limiting region and takes on a new meaning related ...
LP38798 800-mA Ultra-Low-Noise, High-PSRR
LP38798 800-mA Ultra-Low-Noise, High-PSRR

... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absol ...
Chapter 4- Resistance
Chapter 4- Resistance

... The resistor value is the primary concern. The value of the resistor may be indicated by three to five digits. In all cases, the last digit indicates the number of zeros to be added to the preceding digits. In the example given, the last digit (2) indicates the number of zeros to be added to the fir ...
Q1. Four resistors, each having resistance of 50 Ω, are connected to
Q1. Four resistors, each having resistance of 50 Ω, are connected to

Programmable Output Voltage Ultra-Low Power Buck
Programmable Output Voltage Ultra-Low Power Buck

... The TPS6273X integrates an optimized hysteretic controller for low power applications. The internal circuitry utilizes a time based sampling system in order to reduce the average quiescent current. To further assist users in the strict management of their energy budgets, the TPS6273X toggles the inp ...
Single-Channel, 12-/16-Bit Programmable Current Output and
Single-Channel, 12-/16-Bit Programmable Current Output and

Model 428B Clip-On Milliammeter
Model 428B Clip-On Milliammeter

... such residual readings for a particular probe location. 3-22. EARTH'S MAGNETIC FIELD. The earth's magnetic field will affect the reading if the jaws of the probe are not completely shielded (jaws partially open). The effect of this field is relatively strong - comparable to deflection due to about 5 ...
BD135/ 137/ 139 NPN Epitaxial Silicon Transistor
BD135/ 137/ 139 NPN Epitaxial Silicon Transistor

Thermal Protection of IGBT Modules for HEV and EV Traction
Thermal Protection of IGBT Modules for HEV and EV Traction

to the possibility of calculation
to the possibility of calculation

Logic Design - IITB-EE
Logic Design - IITB-EE

128-Position I C-Compatible Digital Potentiometer AD5247
128-Position I C-Compatible Digital Potentiometer AD5247

performance specifications and acceptance testing for x-ray
performance specifications and acceptance testing for x-ray

TPS709 150-mA, 30-V, 1-μA IQ Voltage Regulators with Enable
TPS709 150-mA, 30-V, 1-μA IQ Voltage Regulators with Enable

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ppt - SEAS

... Why Zeroth Order Useful? • Allows us to reason (mostly) at logic level about steady-state functionality of typical gate circuits • Make sure understand logical function (achieve logical function) before worrying about performance details ...
MAX1907A/MAX1981A Quick-PWM Master Controllers for Voltage- Positioned CPU Core Power Supplies (IMVP-IV)
MAX1907A/MAX1981A Quick-PWM Master Controllers for Voltage- Positioned CPU Core Power Supplies (IMVP-IV)

... The MAX1907A/MAX1981A are single-phase, QuickPWM™ master controllers for IMVP-IV™ CPU core supplies. Multi-phase operation is achieved using a Quick-PWM slave controller (MAX1980). Multiphase operation reduces input ripple current requirements and output voltage ripple while easing component selecti ...
Masters Thesis
Masters Thesis

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power electronic converters

Presentation - KPB INTRA sro
Presentation - KPB INTRA sro

... It is stated as FS , e.g. FS5 or FS10 It expresses the ratio of resulting exciting current with respect to rated current at which the transformer’s magnetic circuit will be oversaturated This parameter is important for protection of measuring instruments on the transformer’s secondary side The real ...
Ch28 Direct Current Circuits
Ch28 Direct Current Circuits

... A short circuit can develop when the last bit of insulation frays away between the two conductors in a lamp cord. Then the two conductors touch each other, opening a low-resistance branch in parallel with the lamp. The lamp will immediately go out, carrying no current and presenting no danger. A ver ...
3. Preformance of CMOS Circuits
3. Preformance of CMOS Circuits

... – Negligible for older processes – Approaches subthreshold leakage at 65 nm and below in some processes  An order of magnitude less for pMOS than nMOS  Control leakage in the process using tox > 10.5 Å – High-k gate dielectrics help – Some processes provide multiple tox • e.g. thicker oxide for 3. ...
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TRIAC



TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.
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