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MP3900DK-LF-Z Datasheet
MP3900DK-LF-Z Datasheet

Document
Document

... Variable - Voltage • When a unit charge moves from point A to point B, the energy it lose. • Consumed (absorbed) by the elements on the path ...
Overcurrent and Overcurrent Protective Devices
Overcurrent and Overcurrent Protective Devices

PS-5501
PS-5501

... One A Series supercapacitor can supply the required capacitance. However, the nominal operating voltage of 2.5V is exceeded by the 5V requirement. Therefore, two aerogel supercapacitors must be configured in series. If two equal value supercapacitors are used, then the voltage across each device wil ...
Resistors Value Lesson Plan
Resistors Value Lesson Plan

... A resistor is small but important component of your project. The components on your circuit board need to be protected, if we fed a 12 volt current from a battery directly to your small components they would be damaged. A resistor placed in front of a component will only allow a certain current to p ...
coach battery voltage and current meter monitor panel
coach battery voltage and current meter monitor panel

... rear hole in this assembly to be connected to the set of smaller screw terminals on the MKA-50-50 current shunt. Also of course, the red #6 AWG coach battery(s) to charger/converter assembly cable wiring must be modified so that the current carried by this cable will be passed thru the ammeter shun ...
Bus Edison Overcurrent Protective Devices
Bus Edison Overcurrent Protective Devices

... an “ON-OFF” switch for the normal current flow. When abnormal current flows through the circuit breaker, the latch trips, and the indicator on the outside of the circuit breaker moves into the “OFF” position. Once the overcurrent problem has been corrected, the indicator lever can be reset into the ...
Lecture 10
Lecture 10

1 Coulomb = 6.242*10 18 electrons
1 Coulomb = 6.242*10 18 electrons

Ohm`s Law and Electrical Circuits
Ohm`s Law and Electrical Circuits

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discussion about the effects and dangers of
discussion about the effects and dangers of

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KS4 Electricty - Resistance, Power and Energy

Crouzet Solid State Relay Technical Presentation
Crouzet Solid State Relay Technical Presentation

... Input Circuit; Commonly referred to as the ‘primary’, the input of a SSR may consist of a simple resistor in series with the optical-isolator, or of a more complex circuit with current regulation, reverse polarity protection, EMC filtering, etc. In either case, they both serve the same basic functio ...
Nov 1998 LT1468: An Operational Amplifier for Fast, 16-Bit Systems
Nov 1998 LT1468: An Operational Amplifier for Fast, 16-Bit Systems

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year_11_revision_mechanics_electricity_notes

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A Single-Phase Energy Meter with Capacitive Power Supply

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ZXTN25012EZ 12V NPN high gain transistor in SOT89 Summary Description

... 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failur ...
compensation for non-active current components at mains supply
compensation for non-active current components at mains supply

... In this case the work of classical compensator (Fig. 2, II) was characterized by decrease of voltage unbalance coefficient ( K 2U =1.76 %), but considerable total harmonic distortion (THD) of current with THDI = 9 % was observed (Fig. 2, II). It is caused by the fact that a voltage signal distorted ...
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Optoelectronics 2 Notes

... The positive potential on the gate causes a conducting layer of electrons to form below the gate just beneath the insulator. This channel is called an n-channel (since it is formed by electrons). When the channel is formed, this allows the possibility of a current between the source and the drain. I ...
Chapter 1 - Answers - Pearson Schools and FE Colleges
Chapter 1 - Answers - Pearson Schools and FE Colleges

... 1. Define what effect a capacitor and inductor will have on an a.c. circuit. A capacitor will cause a current to lead voltage and an inductor will make current lag voltage in an a.c. circuit. 2. What is impedance? This is the combined effect of capacitors, inductors and resistance in an a.c. circuit ...
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RC (Resistor-Capacitor) Circuits

Internal Resistance and Resistivity in DC Circuits
Internal Resistance and Resistivity in DC Circuits

ZXTN25060BZ 60V, SOT89, NPN medium power transistor Summary Description
ZXTN25060BZ 60V, SOT89, NPN medium power transistor Summary Description

... 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failur ...
Dual Step-Down Converter with Supervisory RESET Function
Dual Step-Down Converter with Supervisory RESET Function

phys202 – spring 2009
phys202 – spring 2009

< 1 ... 371 372 373 374 375 376 377 378 379 ... 628 >

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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