Embedded Magnetorquer Coil Design for Micro
... incorporated within the PCB four inner layers to generate the required torque and orientate the satellite in desired direction. Each PCB internal layer has 60 turns and the four inner layers have a total of 240 turns. Coil in each layer is a separate coil and has their terminals on the PCB surface. ...
... incorporated within the PCB four inner layers to generate the required torque and orientate the satellite in desired direction. Each PCB internal layer has 60 turns and the four inner layers have a total of 240 turns. Coil in each layer is a separate coil and has their terminals on the PCB surface. ...
Wind Turbine, 2009 - WPI - Worcester Polytechnic Institute
... The next component in line with the rotor is the gear box, or gear ratio. This gear box provides certain mechanical advantages which are desirable because of the general low velocity of the wind. In order to gain a suitable electrical energy output from our generator we will needs a relatively high ...
... The next component in line with the rotor is the gear box, or gear ratio. This gear box provides certain mechanical advantages which are desirable because of the general low velocity of the wind. In order to gain a suitable electrical energy output from our generator we will needs a relatively high ...
Current Shunt Resistors integrated in IGBT Power
... temperature range. This is unfortunately not the case. Not only an electric voltage is formed by the current through the resistance but also power losses are generated in this resistor. The power losses for a DC current are simply ...
... temperature range. This is unfortunately not the case. Not only an electric voltage is formed by the current through the resistance but also power losses are generated in this resistor. The power losses for a DC current are simply ...
EMMI LAB Laboratory
... lumped parameters, the windings of transformers and chokes, and inductance coils. Their principle of operation depends on the method of measurement. The “voltmeter-ammeter” method (Figure 1) is used for measuring relatively large inductances (from 0.1 to 1,000 henrys [H]) when the resistance of the ...
... lumped parameters, the windings of transformers and chokes, and inductance coils. Their principle of operation depends on the method of measurement. The “voltmeter-ammeter” method (Figure 1) is used for measuring relatively large inductances (from 0.1 to 1,000 henrys [H]) when the resistance of the ...
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... and position control applications. Their speeds below the base speeds can be controlled by armature/voltage control. Speeds above the base speed are obtained by field-flux control method. As speed control method for DC motors are simpler and less expensive than those for AC motors, DC motors are pre ...
... and position control applications. Their speeds below the base speeds can be controlled by armature/voltage control. Speeds above the base speed are obtained by field-flux control method. As speed control method for DC motors are simpler and less expensive than those for AC motors, DC motors are pre ...
What do resistors do?
... VF increases from zero, the SCR conducts only a small forward current (IF ) which is due to leakage. As VF continues to increase, IF remains very low and almost constant but eventually a point is reached where IF increases rapidly and VF drops to a low value. – The VF value required to trigger this ...
... VF increases from zero, the SCR conducts only a small forward current (IF ) which is due to leakage. As VF continues to increase, IF remains very low and almost constant but eventually a point is reached where IF increases rapidly and VF drops to a low value. – The VF value required to trigger this ...
Transformers
... difficulties in voltage conversion); therefore, high currents were needed to be generated and transmitted to deliver necessary power. This system suffered significant energy losses! The second generation of power distribution systems (what we are still using) was proposed by Tesla few years later. H ...
... difficulties in voltage conversion); therefore, high currents were needed to be generated and transmitted to deliver necessary power. This system suffered significant energy losses! The second generation of power distribution systems (what we are still using) was proposed by Tesla few years later. H ...
One valuable thing to understand about the buck circuit is the input
... The steady state average current through the inductor is 1.17A The steady state rms current through the capacitor is 1.4Arms. Inductors are sized based on the max DC current. We would probably add some margin and pick an inductor that was at least capable of 2A, maybe more depending how conservativ ...
... The steady state average current through the inductor is 1.17A The steady state rms current through the capacitor is 1.4Arms. Inductors are sized based on the max DC current. We would probably add some margin and pick an inductor that was at least capable of 2A, maybe more depending how conservativ ...
CAT32 - CMOS White LED Driver
... The CAT32 is a DC/DC step up converter that delivers a regulated output current. Operation at a constant switching frequency of 1.2 MHz allows the device to be used with very small value external inductor and ceramic capacitors. The CAT32 is targeted to drive multiple white light−emitting diodes (LE ...
... The CAT32 is a DC/DC step up converter that delivers a regulated output current. Operation at a constant switching frequency of 1.2 MHz allows the device to be used with very small value external inductor and ceramic capacitors. The CAT32 is targeted to drive multiple white light−emitting diodes (LE ...
Downloaded
... consists of an induction generator directly connected to the grid through a transformer, and a STATCOM connected at the terminals of the induction machine. It should, however, be noted that a system with an induction motor can be considered in the same way. The derivation of the suggested control me ...
... consists of an induction generator directly connected to the grid through a transformer, and a STATCOM connected at the terminals of the induction machine. It should, however, be noted that a system with an induction motor can be considered in the same way. The derivation of the suggested control me ...
Transistor Introduction, Simulation and optional
... Although they differ fundamentally in the way they operate, both types perform similar functions. Unique characteristics of each technology determine which type of transistor to use. This lab studies BJT’s. The three terminals of a BJT are referred to as the Base, Emitter, and Collector. Figure 1 s ...
... Although they differ fundamentally in the way they operate, both types perform similar functions. Unique characteristics of each technology determine which type of transistor to use. This lab studies BJT’s. The three terminals of a BJT are referred to as the Base, Emitter, and Collector. Figure 1 s ...
Stepper motor
A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.