Restricted Earth fault Protection in
... the CTs may have different ratio error and phase angle error – due to this , the secondary cuurents will not be equal even if the primary currents are same.. the CTs may have different saturation characteristics – this will cause small difference in the secondary currents for a same primary current ...
... the CTs may have different ratio error and phase angle error – due to this , the secondary cuurents will not be equal even if the primary currents are same.. the CTs may have different saturation characteristics – this will cause small difference in the secondary currents for a same primary current ...
UCC2818A-Q1 数据资料 dataSheet 下载
... of the current sense resistor to VREF to level shift this signal to a voltage level defined by the value of the sense resistor and the peak current limit. Peak current limit is reached when PKLMT voltage falls below 0 V. RT: Oscillator charging current. A resistor from RT to GND is used to program o ...
... of the current sense resistor to VREF to level shift this signal to a voltage level defined by the value of the sense resistor and the peak current limit. Peak current limit is reached when PKLMT voltage falls below 0 V. RT: Oscillator charging current. A resistor from RT to GND is used to program o ...
Chapter-16 Electricity
... In parallel combination of resistors, if one component of circuit (resistor) is damaged then rest of the component of the circuit will perform their work without any disturbance. It is due to the presence of more than paths for the flow of electric current. EQUIVALENT RESISTANCE IN PARALLEL COMBINAT ...
... In parallel combination of resistors, if one component of circuit (resistor) is damaged then rest of the component of the circuit will perform their work without any disturbance. It is due to the presence of more than paths for the flow of electric current. EQUIVALENT RESISTANCE IN PARALLEL COMBINAT ...
Subgap biasing of Superconducting Tunnel Junctions without a Magnetic Field
... three junctions are in the voltage state. In order to predict the form of the I-V curve for increasing the current, a full time-dependent model must be applied. The complete Resistive and Capacitive Shunted Junction 共RCSJ兲 form of the current is used for each junction and the system equations are ob ...
... three junctions are in the voltage state. In order to predict the form of the I-V curve for increasing the current, a full time-dependent model must be applied. The complete Resistive and Capacitive Shunted Junction 共RCSJ兲 form of the current is used for each junction and the system equations are ob ...
FJN3303F High Voltage Fast-Switching NPN Power Transistor FJN3303F — High V olt
... Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support. Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor ...
... Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support. Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor ...
Application Note - Aeroflex Microelectronic Solutions
... Electrostatic Discharge (ESD) Protection via Transorbs ESD requirements are often imposed as part of the procurement specification. In many cases, the “human body model” is employed, in which a 100 pf capacitor is charged to 4000 V, either positive or negative polarity, and discharged into every I/O ...
... Electrostatic Discharge (ESD) Protection via Transorbs ESD requirements are often imposed as part of the procurement specification. In many cases, the “human body model” is employed, in which a 100 pf capacitor is charged to 4000 V, either positive or negative polarity, and discharged into every I/O ...
Small Signal Model
... Cross-section of a CMOS integrated circuit. Note that the PMOS transistor is formed in a separate n-type region, known as an n well. Another arrangement is also possible in which an n-type body is used and the n device is formed in a p well. Not shown are the connections made to the ptype body and t ...
... Cross-section of a CMOS integrated circuit. Note that the PMOS transistor is formed in a separate n-type region, known as an n well. Another arrangement is also possible in which an n-type body is used and the n device is formed in a p well. Not shown are the connections made to the ptype body and t ...
9/2 Erwin Sitompul University Physics: Wave and Electricity
... The SI unit for current is the coulomb per second (C/s) or the ampere (A). ...
... The SI unit for current is the coulomb per second (C/s) or the ampere (A). ...
fundamentals of electricity
... Ohm’s Law is the basic formula used in all AC and DC electrical circuits. So if you know two of the three characteristics, your can calculate the third one. Electrical designers use it to determine how much voltage is required for a certain load, like a motor, a computer, or even a house full of app ...
... Ohm’s Law is the basic formula used in all AC and DC electrical circuits. So if you know two of the three characteristics, your can calculate the third one. Electrical designers use it to determine how much voltage is required for a certain load, like a motor, a computer, or even a house full of app ...
The time period or periodic time T of an alternating quantity is the
... A phasor is a line which represents the a. rms value and phase of an alternating quantity b. average value and phase of an alternating quantity c. magnitude and direction of an alternating quantity d. none of the above ans:a If two sinusoids of the same frequency but of different amplitudes and phas ...
... A phasor is a line which represents the a. rms value and phase of an alternating quantity b. average value and phase of an alternating quantity c. magnitude and direction of an alternating quantity d. none of the above ans:a If two sinusoids of the same frequency but of different amplitudes and phas ...
Ch. 9
... • In time domain, this would be tricky as the ratios of voltage and current and always changing. • But in frequency domain it is straightforward • The impedance of a circuit element is the ratio of the phasor voltage to the phasor current. V ...
... • In time domain, this would be tricky as the ratios of voltage and current and always changing. • But in frequency domain it is straightforward • The impedance of a circuit element is the ratio of the phasor voltage to the phasor current. V ...
EE 210 Lab Exercise #8: RC Circuit Transient
... then discharged through a resistor and the oscilloscope’s internal resistance. The time dependence of the potential across the capacitor as it changes from 0 V to 10 V will be measured, so that the time constant τ = RC can be determined. The resistance R is the equivalent resistance of the 1M Ω inte ...
... then discharged through a resistor and the oscilloscope’s internal resistance. The time dependence of the potential across the capacitor as it changes from 0 V to 10 V will be measured, so that the time constant τ = RC can be determined. The resistance R is the equivalent resistance of the 1M Ω inte ...
AN1645 - STMicroelectronics
... One of the major problems of synchronous rectification is the generation of proper driving signals for the mosfets to avoid cross conduction. Contemporary conduction of the two mosfets must be avoided not only when the two mosfets are both in on state but also when just one is on and the other one i ...
... One of the major problems of synchronous rectification is the generation of proper driving signals for the mosfets to avoid cross conduction. Contemporary conduction of the two mosfets must be avoided not only when the two mosfets are both in on state but also when just one is on and the other one i ...
1. Using spice, draw the voltage-current graph by changing Vgs from
... .model nfet nmos (vto=1.0) .DC vds 0 5 0.1 vgs 1 5 1 .plot dc i(vids) .end ...
... .model nfet nmos (vto=1.0) .DC vds 0 5 0.1 vgs 1 5 1 .plot dc i(vids) .end ...
TBU white paper
... allow less than these values from reaching the equipment, and 2) can subsequently short circuit and protect the interface from a surge which may peak on the order of 1000 A. Considering that the surge may develop in a few microseconds, this is quite a difficult task. Some primary protective devices ...
... allow less than these values from reaching the equipment, and 2) can subsequently short circuit and protect the interface from a surge which may peak on the order of 1000 A. Considering that the surge may develop in a few microseconds, this is quite a difficult task. Some primary protective devices ...
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.