Types of D.C. Generators Separately Excited D.C. Generators Self
... Separately Excited D.C. Generators A d.c. generator whose field magnet winding is supplied from an independent external d.c. source (e.g., a battery etc.) is called a separately excited generator. Fig. (1.32) shows the connections of a separately excited generator. The voltage output depends upon th ...
... Separately Excited D.C. Generators A d.c. generator whose field magnet winding is supplied from an independent external d.c. source (e.g., a battery etc.) is called a separately excited generator. Fig. (1.32) shows the connections of a separately excited generator. The voltage output depends upon th ...
Using the MP6530 Family of Pre
... until the magnetic field has decayed. When the MOSFETs are turned off, this current flows through the body diode, which is inherent in the MOSFET device. MOSFET body diodes have a much higher voltage drop than the MOSFET has during conduction, so more power is dissipated in body diode conduction tha ...
... until the magnetic field has decayed. When the MOSFETs are turned off, this current flows through the body diode, which is inherent in the MOSFET device. MOSFET body diodes have a much higher voltage drop than the MOSFET has during conduction, so more power is dissipated in body diode conduction tha ...
BlimpBot - Phase 2
... is to configure the PWM in such a way that the motor driver quickly toggles between the Standby and Forward states (to go forward) or between the Standby and Reverse states (to go backwards). Your motor controller should NEVER switch to the “Brake” state, as it will cause unnecessary current consump ...
... is to configure the PWM in such a way that the motor driver quickly toggles between the Standby and Forward states (to go forward) or between the Standby and Reverse states (to go backwards). Your motor controller should NEVER switch to the “Brake” state, as it will cause unnecessary current consump ...
STK681-320
... ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www ...
... ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www ...
Lecture Notes - Balanced Three Phase Circuit Connections File
... to the transducer than can be delivered with a single-phase supply. 4. In general, most larger motors are three phase because they are essentially selfstarting and do not require a special design or additional starting circuitry. Eeng 224 ...
... to the transducer than can be delivered with a single-phase supply. 4. In general, most larger motors are three phase because they are essentially selfstarting and do not require a special design or additional starting circuitry. Eeng 224 ...
Integrating EMI Filters and Appliance Motor Controls
... and requiring high speed. Although it has lower life than its brushless counterparts, Universal motors are well suited for low duty cycle applications where motor efficiency is not as critical. The control of a universal motor is typically performed with a low cost Triac2. A simple universal motor c ...
... and requiring high speed. Although it has lower life than its brushless counterparts, Universal motors are well suited for low duty cycle applications where motor efficiency is not as critical. The control of a universal motor is typically performed with a low cost Triac2. A simple universal motor c ...
fundemental principes of working in resonant converter
... generated at a higher frequency. Switching loss can be partly avoided by connecting a simple snubber circuit parallel to the switching circuit. However, the total amount of switching loss generated in the system remains the same. The loss avoided, has in fact, just moved to the snubber circuit. High ...
... generated at a higher frequency. Switching loss can be partly avoided by connecting a simple snubber circuit parallel to the switching circuit. However, the total amount of switching loss generated in the system remains the same. The loss avoided, has in fact, just moved to the snubber circuit. High ...
SEMITOP 3 Power Board
... Application Note was written for TRIAC, the isolation constraints still apply for fast switching semiconductor devices such as IGBTs.) ...
... Application Note was written for TRIAC, the isolation constraints still apply for fast switching semiconductor devices such as IGBTs.) ...
Electromagnetic Induction
... creating a current in a circuit by a changing magnetic field. • A change in the magnetic flux through a conductor induces an electric current in the conductor. • The separation of charges by the magnetic force induces an emf. ...
... creating a current in a circuit by a changing magnetic field. • A change in the magnetic flux through a conductor induces an electric current in the conductor. • The separation of charges by the magnetic force induces an emf. ...
DN1001 - High Efficiency, High Density Power
... output supply using four LTC3731 controllers. Figure 2 shows the schematic for a single LTC3731-based 3-phase circuit block. Each phase uses two SO-8 size MOSFETs to provide up to 17A of output current. The total footprint of the power supply fits within a 6.5" × 1.65" area as shown in Figure 3. The ...
... output supply using four LTC3731 controllers. Figure 2 shows the schematic for a single LTC3731-based 3-phase circuit block. Each phase uses two SO-8 size MOSFETs to provide up to 17A of output current. The total footprint of the power supply fits within a 6.5" × 1.65" area as shown in Figure 3. The ...
Electric Drives Experiment 2 Two-Pole Switch-Mode DC Converter and
... To aid in measuring the change in current when the voltage is applied, add two check button instruments to the ControlDesk layout. Drag and drop the Reset->Value (“Reset”) variable into one checkbox, and put the SD->Value (“Shutdown”) variable into the second checkbox. Press the “Start Measuring” ic ...
... To aid in measuring the change in current when the voltage is applied, add two check button instruments to the ControlDesk layout. Drag and drop the Reset->Value (“Reset”) variable into one checkbox, and put the SD->Value (“Shutdown”) variable into the second checkbox. Press the “Start Measuring” ic ...
... corresponding to a pre-determined speed of rotation, followed by one or more periods of operation at other constant loads corresponding to different speeds of rotation (carried out, for example, by means of a change of the number of poles in the case of induction motors) NOTE There is no rest or de- ...
the asynchronous generator in small power plants
... The asynchronous machine needs "reactive power" to build up the magnetic field. It is known that the reactive power is an apparent power not contributing to the direct energy conversion. The current associated with it, which means the reactive current, causes losses in supply and in the machine. The ...
... The asynchronous machine needs "reactive power" to build up the magnetic field. It is known that the reactive power is an apparent power not contributing to the direct energy conversion. The current associated with it, which means the reactive current, causes losses in supply and in the machine. The ...
Induction motor
An induction or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor therefore does not require mechanical commutation, separate-excitation or self-excitation for all or part of the energy transferred from stator to rotor, as in universal, DC and large synchronous motors. An induction motor's rotor can be either wound type or squirrel-cage type.Three-phase squirrel-cage induction motors are widely used in industrial drives because they are rugged, reliable and economical. Single-phase induction motors are used extensively for smaller loads, such as household appliances like fans. Although traditionally used in fixed-speed service, induction motors are increasingly being used with variable-frequency drives (VFDs) in variable-speed service. VFDs offer especially important energy savings opportunities for existing and prospective induction motors in variable-torque centrifugal fan, pump and compressor load applications. Squirrel cage induction motors are very widely used in both fixed-speed and variable-frequency drive (VFD) applications. Variable voltage and variable frequency drives are also used in variable-speed service.