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TVS Diode Array SPA SP725 Datasheet
TVS Diode Array SPA SP725 Datasheet

Electric Heating Equipment
Electric Heating Equipment

IS31BL3508A - Integrated Silicon Solution
IS31BL3508A - Integrated Silicon Solution

... A 2.2μF input capacitor is used to reduce input ripple and noise, where the input ripple amplitude is inversely proportional to the value of the input capacitance. The input and output capacitors should be placed as close to the device as possible, so as to reduce the effect of voltage ripple. The v ...
Electricity – Resistance, Power and Energy
Electricity – Resistance, Power and Energy

... it means What graph look like? your graph. that the two quantities current and voltage are proportional. What does proportional mean? If you double the voltage then the current doubles. This fact was put into a law: ...
KS4 Electricity - Resistance, Power and Energy
KS4 Electricity - Resistance, Power and Energy

small-signal hybrid-π equivalent circuit of bipolar
small-signal hybrid-π equivalent circuit of bipolar

...  Hybrid- π equivalent circuit including Early Effect  Expanded hybrid- π equivalent circuit  Other small-signal parameters and equivalent circuits2 ...
Paper Title (use style: paper title)
Paper Title (use style: paper title)

lab sheet - Faculty of Engineering
lab sheet - Faculty of Engineering

ULN2003A DataSheet
ULN2003A DataSheet

... Operating free-air temperature range, TA, ULN200xA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20°C to 70°C ULQ200xA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C ULQ200xAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C ...
Lab3 Thermistor
Lab3 Thermistor

EE 321 Exam 1
EE 321 Exam 1

... non-inverting amplifier, so vo = 50VOS = 50 mV. • Figure (b). IB+ will flow through the 10 kΩ resistor, so v+ = -10 nA × 10 kΩ = -0.1 mV. This will be amplified by the non-inverting amplifier, so vo = 50× (-0.1 mV) = -5 mV. • Figure (c). v− = v+ = 0. IB− will flow into (-) terminal. Because v− = 0 V ...
AD5203设计的8串白光LED驱动方案
AD5203设计的8串白光LED驱动方案

... of multiple series connected LEDs with a ±1.5% current matching between strings. The ADD5203 provi des various dimming modes. Each dimming mode is selectable with an external dimming mode selection pin. The LED dimming control interface can be achieved through PWM input and/or SMBus.The device provi ...
Heavy-Duty Truck Sytems Chapter 05
Heavy-Duty Truck Sytems Chapter 05

... • The principle of a transformer can be summarized by describing it as flowing current through a primary coil and inducing a current flow in a secondary or output coil. ...
Chapter 7. ALTERNATING CURRENT
Chapter 7. ALTERNATING CURRENT

... Time constant of a L – R circuit is the time in which current in the circuit grows to 63.2% of the maximum value of current. Decay of current in an inductor at any time t is given by I = Ioe -Rt / L Time constant of a L – R circuit is the time in which current decays to 36.8% of the maximum value of ...
Single Electron Transistor
Single Electron Transistor

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Resistance, Power and Energy 2 - School

SM72295 Photovoltaic Full Bridge Driver (Rev. E)
SM72295 Photovoltaic Full Bridge Driver (Rev. E)

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electricity----static and current

Ohm`s Law - Power
Ohm`s Law - Power

... yourself insulated from earth ground when working on power-line circuits, since one side of the line is usually connected to earth. In addition, the metal chassis of radio and television receivers is often connected to the power line ground. The final and best safety rule is to work on the circuits ...
Developer Notes
Developer Notes

... end, the flat end on a D-cell. The voltage is not high because the chemicals in the battery only react at a certain rate. Have students build circuit boards or show a demo of one.  Electric circuit = when a current makes a complete loop  What are necessary components of an electrical circuit? Sour ...
Lecture4_oim - Nuclear Physics Group
Lecture4_oim - Nuclear Physics Group

Jun 1999 4.5µA Li-Ion Battery Protection Circuit
Jun 1999 4.5µA Li-Ion Battery Protection Circuit

AND gate
AND gate

Chapter 22
Chapter 22

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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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