External Characteristic of Separately Excited DC Generator
... So, this curve can be obtained practically be separating the field winding and exciting the DC generator by an external source. Here in the diagram below AB curve is showing the magnetic characteristic of series wound DC generator. The linearity of the curve will continue till the saturation of t ...
... So, this curve can be obtained practically be separating the field winding and exciting the DC generator by an external source. Here in the diagram below AB curve is showing the magnetic characteristic of series wound DC generator. The linearity of the curve will continue till the saturation of t ...
Lecture 10
... Common for transmission/distribution step-down since there is a neutral on the low voltage side. Even if a = 1 there is a sqrt(3) step-up ratio ...
... Common for transmission/distribution step-down since there is a neutral on the low voltage side. Even if a = 1 there is a sqrt(3) step-up ratio ...
Stearns SINPAC Electronic Switches
... • Speed Sensitive SINPAC Switches duplicate mechanical switch performance. They cut out the start circuit at approximately 80% of synchronous speed*. This means no degradation in motor performance and no confusing and cumbersome time or current selection criteria to consider, since SINPAC Switches a ...
... • Speed Sensitive SINPAC Switches duplicate mechanical switch performance. They cut out the start circuit at approximately 80% of synchronous speed*. This means no degradation in motor performance and no confusing and cumbersome time or current selection criteria to consider, since SINPAC Switches a ...
Power MOSFET Basics
... VDS(MAX) due to inductive spikes during circuit operation. Therefore, manufacturers commonly specify single and repetitive ratings, and many perform 100% single pulse testing on shipped units. ...
... VDS(MAX) due to inductive spikes during circuit operation. Therefore, manufacturers commonly specify single and repetitive ratings, and many perform 100% single pulse testing on shipped units. ...
1) INTRODUCTION
... techniques are used to control the motor from zero and low speed up to full speed operation. The selfsensing technique is used at zero and low speeds to start the machine, then the control is switched to a back-EMF based sensor less technique for the normal higher speed operating range of the machin ...
... techniques are used to control the motor from zero and low speed up to full speed operation. The selfsensing technique is used at zero and low speeds to start the machine, then the control is switched to a back-EMF based sensor less technique for the normal higher speed operating range of the machin ...
Step-Down Converter with Cable Voltage Drop
... Juergen Neuhaeusler, Carsten Thiele ABSTRACT Output voltages of DCDC converters typically are precisely regulated at the location the feedback divider is connected. In case of longer connections to the load which, for example, is not on the same PCB the precision of the regulation suffers from the w ...
... Juergen Neuhaeusler, Carsten Thiele ABSTRACT Output voltages of DCDC converters typically are precisely regulated at the location the feedback divider is connected. In case of longer connections to the load which, for example, is not on the same PCB the precision of the regulation suffers from the w ...
5 HP – 30 HP Single-Phase to Three
... The converter shall be based on a double-IGBT conversion design, rectifying the incoming AC power to DC, then generating a third AC voltage which is added to the two legs of the single-phase service, producing balanced three-phase power in a closed delta configuration with a center-tap ground betwee ...
... The converter shall be based on a double-IGBT conversion design, rectifying the incoming AC power to DC, then generating a third AC voltage which is added to the two legs of the single-phase service, producing balanced three-phase power in a closed delta configuration with a center-tap ground betwee ...
Ahmad Shtaiyat
... sensor, servo motor …) , and has Microcontroller (Arduino ) . Microcontroller receive the information from the sensor , then according to this information it will determine the distance , then change the servo angle , then force the sensor to recompute the distance , then determine the direction of ...
... sensor, servo motor …) , and has Microcontroller (Arduino ) . Microcontroller receive the information from the sensor , then according to this information it will determine the distance , then change the servo angle , then force the sensor to recompute the distance , then determine the direction of ...
Twelve-Sided Polygonal Voltage Space Vector
... 5th and 7th harmonics in the motor phase voltage. These harmonic currents restrict the bandwidth of the closed-loop current controllers and require a different approach for current controller design in the overmodulation region [8]. Multilevel inverter-fed induction motor drives can also be realized ...
... 5th and 7th harmonics in the motor phase voltage. These harmonic currents restrict the bandwidth of the closed-loop current controllers and require a different approach for current controller design in the overmodulation region [8]. Multilevel inverter-fed induction motor drives can also be realized ...
G7L-2A-X DC24 Datasheet
... scenario, burning may extend to surrounding components. Do not use these Relays outside of the specified ratings and service life, or for any application other than high DC voltages. Implement safety circuits and other safety measures to minimize the risk in case of the unlikely event of a failure. ...
... scenario, burning may extend to surrounding components. Do not use these Relays outside of the specified ratings and service life, or for any application other than high DC voltages. Implement safety circuits and other safety measures to minimize the risk in case of the unlikely event of a failure. ...
TVS_web
... Lightning is the most obvious threat, heralding its presence with bright flashes across the sky and raucous thunder. Powerful lightning strokes usually cause damage by inducing currents into both power and communication lines. Direct hits are rare. Specific information on threats are defined in IEC ...
... Lightning is the most obvious threat, heralding its presence with bright flashes across the sky and raucous thunder. Powerful lightning strokes usually cause damage by inducing currents into both power and communication lines. Direct hits are rare. Specific information on threats are defined in IEC ...
FSL176MRT Green-Mode Fairchild Power Switch (FPS™) Features
... However, when the SMPS is in normal operation, the overload protection circuit can be triggered during load transition. To avoid this undesired operation, the overload protection circuit is designed to trigger only after a specified time to determine whether it is a transient situation or a true ove ...
... However, when the SMPS is in normal operation, the overload protection circuit can be triggered during load transition. To avoid this undesired operation, the overload protection circuit is designed to trigger only after a specified time to determine whether it is a transient situation or a true ove ...
Lecture 3
... Diode V-I Characteristic VI Characteristic for reverse bias. With 0V reverse voltage there is no reverse current. There is only a small current through the junction VR as the reverse voltage increases. At a point, reverse current shoots up with the break down of diode. The voltage called br ...
... Diode V-I Characteristic VI Characteristic for reverse bias. With 0V reverse voltage there is no reverse current. There is only a small current through the junction VR as the reverse voltage increases. At a point, reverse current shoots up with the break down of diode. The voltage called br ...
An alternator is an electrical generator that converts mechanical
... This emf reverses its polarity when it moves under magnetic poles of opposite polarity. Typically, a rotating magnet, called the rotor turns within a stationary set of conductors wound in coils on an iron core, called the stator. The field cuts across the conductors, generating an induced EMF (elect ...
... This emf reverses its polarity when it moves under magnetic poles of opposite polarity. Typically, a rotating magnet, called the rotor turns within a stationary set of conductors wound in coils on an iron core, called the stator. The field cuts across the conductors, generating an induced EMF (elect ...
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.