tutorial2(que).
... A six pole machine has a flux per pole of 30 mWb. The armature has 536 conductors connected as a lap winding in which the number of parallel paths (a) is equal to the number of poles (p). The DC machine runs at 1050 revolution per minute (rpm), and delivers a rated armature current of 225 A to a loa ...
... A six pole machine has a flux per pole of 30 mWb. The armature has 536 conductors connected as a lap winding in which the number of parallel paths (a) is equal to the number of poles (p). The DC machine runs at 1050 revolution per minute (rpm), and delivers a rated armature current of 225 A to a loa ...
Aalborg Universitet
... The carrier based sine-triangle PWM method generates a train of pulses for the power switches from an inverter, based on the comparison between a high frequency triangular and a sinusoidal reference signal. By adding the 3rd harmonic to the phase voltages the linear range of the modulation index can ...
... The carrier based sine-triangle PWM method generates a train of pulses for the power switches from an inverter, based on the comparison between a high frequency triangular and a sinusoidal reference signal. By adding the 3rd harmonic to the phase voltages the linear range of the modulation index can ...
Word Version - DCC - LIGO Document Control Center Portal
... During operation, the MOSFET on-resistance is typically less than 0.1 ohms. L2 and L3 must be “lossy” ferrite based inductors with impedances of ~1 kohm or more at 100 MHz to avoid ringing. ...
... During operation, the MOSFET on-resistance is typically less than 0.1 ohms. L2 and L3 must be “lossy” ferrite based inductors with impedances of ~1 kohm or more at 100 MHz to avoid ringing. ...
Current-Fed Multi-Resonant DC
... of dIe input inductor ~Lin) by a current source is justified by the fact that in the proposed CF-MRC 4Lin»Lr. Consequently, during one switching cycle, the AC component through Lin is low and dIe input feed can be considered to be a DC current source. Assuming an initial stage in which dIe toggle sw ...
... of dIe input inductor ~Lin) by a current source is justified by the fact that in the proposed CF-MRC 4Lin»Lr. Consequently, during one switching cycle, the AC component through Lin is low and dIe input feed can be considered to be a DC current source. Assuming an initial stage in which dIe toggle sw ...
a secondary-side phase-shift-controlled llc resonant converter with
... provided by using SS-PSC strategy. In comparison with the conventional variable-frequencycontrolled (VFC) LLC resonant converter, the main advantages are that the circulating current caused by the magnetizing inductor is effectively suppressed and the efficiency of normal operation is significantly ...
... provided by using SS-PSC strategy. In comparison with the conventional variable-frequencycontrolled (VFC) LLC resonant converter, the main advantages are that the circulating current caused by the magnetizing inductor is effectively suppressed and the efficiency of normal operation is significantly ...
ONERA, 29 avenue de la division Leclerc 92320 Châtillon
... good thermal stability and low noise In order to increase the differential charge amplifier thermal stability, its integration is finally presented with special care on noise reduction, and feedback capacitor matching. This integrated circuit has been developed and is being realized. The next step i ...
... good thermal stability and low noise In order to increase the differential charge amplifier thermal stability, its integration is finally presented with special care on noise reduction, and feedback capacitor matching. This integrated circuit has been developed and is being realized. The next step i ...
Lab #1: Ohm’s Law (and not Ohm’s Law)
... • For R, should we use the color-band value or should we measure it? • big currents! Should we switch to lower scale when using smaller currents? • open switch when not in use (try touching the resistors) • Some of these batteries drift with temperature. Take A.1 and A.5 seriously to avoid this prob ...
... • For R, should we use the color-band value or should we measure it? • big currents! Should we switch to lower scale when using smaller currents? • open switch when not in use (try touching the resistors) • Some of these batteries drift with temperature. Take A.1 and A.5 seriously to avoid this prob ...
O A RIGINAL RTICLES
... Beiranvand et al., 2010; Badin and Barbi2010). In today's industry, it is necessary to convert power for equipment used in environments where dissimilar voltages and frequencies are the norm. Static frequency converters or industrial power supplies are used for converting either 50Hz or 60Hz utility ...
... Beiranvand et al., 2010; Badin and Barbi2010). In today's industry, it is necessary to convert power for equipment used in environments where dissimilar voltages and frequencies are the norm. Static frequency converters or industrial power supplies are used for converting either 50Hz or 60Hz utility ...
a AN-584 APPLICATION NOTE
... associated with VOUT,dm become nonzero. This significantly complicates the mathematical analysis along with any intuitive understanding of how the part operates. Some of these configurations will be in another section. ...
... associated with VOUT,dm become nonzero. This significantly complicates the mathematical analysis along with any intuitive understanding of how the part operates. Some of these configurations will be in another section. ...
LV8760T Forward/Reverse H-bridge Driver Overview Bi-CMOS LSI
... 2) For the set design, employ the derating design with sufficient margin. Stresses to be derated include the voltage, current, junction temperature, power loss, and mechanical stresses such as vibration, impact, and tension. Accordingly, the design must ensure these stresses to be as low or small as ...
... 2) For the set design, employ the derating design with sufficient margin. Stresses to be derated include the voltage, current, junction temperature, power loss, and mechanical stresses such as vibration, impact, and tension. Accordingly, the design must ensure these stresses to be as low or small as ...
TEP Measurement of low resistance TEP Measurement of low
... sockets on the side, using the amplifier (four-wire method of measurement, see Fig. 1). Settings of the amplifier: Low drift, R = 10 4 Ω, Amplification: 10 3 , Timer constant: 0 sec. ...
... sockets on the side, using the amplifier (four-wire method of measurement, see Fig. 1). Settings of the amplifier: Low drift, R = 10 4 Ω, Amplification: 10 3 , Timer constant: 0 sec. ...
Ohm`s and Kirchhoff`s Circuit Laws Abstract Introduction and Theory
... additional components, such as the resistors that were used in Lab #1. A point in the circuit where two or more components connect together is called a circuit node. A path from one node to another is known as a circuit branch. A closed path through the circuit that starts at a particular node and p ...
... additional components, such as the resistors that were used in Lab #1. A point in the circuit where two or more components connect together is called a circuit node. A path from one node to another is known as a circuit branch. A closed path through the circuit that starts at a particular node and p ...
1. What is the potential difference across a 5 ohm resistor which
... 26. Four 1.5 volt AA batteries in series are used to power a transistor radio. If the batteries hold a total charge of 240 C, how long will they last if the radio has a resistance of 200 Ω ? a. 1.1 hours b. 2.2 hours c. 4.1 hours d. 13 hours 27. What is the maximum number of 100 Watt lightbulbs you ...
... 26. Four 1.5 volt AA batteries in series are used to power a transistor radio. If the batteries hold a total charge of 240 C, how long will they last if the radio has a resistance of 200 Ω ? a. 1.1 hours b. 2.2 hours c. 4.1 hours d. 13 hours 27. What is the maximum number of 100 Watt lightbulbs you ...
ES1F - ES1J Fast Rectifiers ES1F - ES1J Fast Rectifiers Features
... SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: ...
... SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: ...
Design of Low Power CMOS Crystal Oscillator with Tuning Capacitors
... The approximate expression for the motional impedance Z m is ...
... The approximate expression for the motional impedance Z m is ...
Chapter_3_Lecture_PowerPoint
... Source transformations is a procedure that may be very useful in the computation of equivalent circuits, permitting, in some circumstances, replacement of current sources with voltage sources and vice versa. The Norton and Thévenin theorems state that any oneport network can be represented by a vol ...
... Source transformations is a procedure that may be very useful in the computation of equivalent circuits, permitting, in some circumstances, replacement of current sources with voltage sources and vice versa. The Norton and Thévenin theorems state that any oneport network can be represented by a vol ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.