DC Motors and Generators Unit 2
... voltage to be induced between the ends of the coil of wire. If a wire loop is placed between two magnets and rotated as shown in Figure 2-6, magnetic lines of force are cut and a voltage "݁" is induced in the loop. The polarity of the induced voltage "݁" depends on the direction in which the wire lo ...
... voltage to be induced between the ends of the coil of wire. If a wire loop is placed between two magnets and rotated as shown in Figure 2-6, magnetic lines of force are cut and a voltage "݁" is induced in the loop. The polarity of the induced voltage "݁" depends on the direction in which the wire lo ...
Lab 17
... 4. Repeat step 3 using a single resistor to provide the switching current . Lab Procedure: 1. Construct the differential amplifier designed in step 1 of the design procedures. Verify the circuit operation with both inputs grounded. Be careful in making voltage measurements so as not to effectively ...
... 4. Repeat step 3 using a single resistor to provide the switching current . Lab Procedure: 1. Construct the differential amplifier designed in step 1 of the design procedures. Verify the circuit operation with both inputs grounded. Be careful in making voltage measurements so as not to effectively ...
On the Ongoing Evolution of Very High Frequency Power Supplies
... consider the drive trapezoidal, the rise and fall times have to be less than 1 ns [33]. A trapezoidal or square wave drive would minimize the time of the power switch in linear operation and therefore decreases the losses. The degrees of freedom in terms of modulation principles are less for VHF con ...
... consider the drive trapezoidal, the rise and fall times have to be less than 1 ns [33]. A trapezoidal or square wave drive would minimize the time of the power switch in linear operation and therefore decreases the losses. The degrees of freedom in terms of modulation principles are less for VHF con ...
PPT: Circuits 1
... logic ICs are either TTL (transistor) or CMOS (MOSFET) based. ◊ These are expanded further into numerous families of devices that each have their own electrical and performance characteristics. ...
... logic ICs are either TTL (transistor) or CMOS (MOSFET) based. ◊ These are expanded further into numerous families of devices that each have their own electrical and performance characteristics. ...
Deep-Submicron CMOS Design Methodology for High
... devices provide the core operation of the converter and are required to have as large of operating range as possible. Some designs, such as the Folding converter discussed here, eases some of the requirements of the converter. However, for the Flash converter, also discussed, the comparator can be t ...
... devices provide the core operation of the converter and are required to have as large of operating range as possible. Some designs, such as the Folding converter discussed here, eases some of the requirements of the converter. However, for the Flash converter, also discussed, the comparator can be t ...
AP4201274279
... reduction of multiphase DC-DC converter by employing directly coupled inductors. An emphasis was also given to calculate the generalized expression of equivalent inductance. With the help of specified parameters, the design parameters are also determined. The proposed multi phase Boost topology reta ...
... reduction of multiphase DC-DC converter by employing directly coupled inductors. An emphasis was also given to calculate the generalized expression of equivalent inductance. With the help of specified parameters, the design parameters are also determined. The proposed multi phase Boost topology reta ...
Dual-mode Multiphase Sinusoidal Oscillator using CDBAs
... differencing buffered amplifier (CDBA) has been introduced [10]. Since the CDBA consists of a unity-gain differential amplifier and a unity-gain voltage amplifier, a high frequency operation and less parasitic can be expected. The MSO based on CDBAs has been reported in the literature [11], however ...
... differencing buffered amplifier (CDBA) has been introduced [10]. Since the CDBA consists of a unity-gain differential amplifier and a unity-gain voltage amplifier, a high frequency operation and less parasitic can be expected. The MSO based on CDBAs has been reported in the literature [11], however ...
24-bit Multifunction Temperature and Voltage Devices
... USB-2416 Series devices provide eight digital I/O lines with read/write rates of 500 port or single bit reads per second. Each DIO channel is an open-drain. Digital outputs can sink up to 150 mA for direct drive applications. The maximum sink current is 150 mA per eight-channel bank, or if all eight ...
... USB-2416 Series devices provide eight digital I/O lines with read/write rates of 500 port or single bit reads per second. Each DIO channel is an open-drain. Digital outputs can sink up to 150 mA for direct drive applications. The maximum sink current is 150 mA per eight-channel bank, or if all eight ...
An AA-Sized Vibration- Based Microgenerator for Wireless Sensors
... Amirtharajah and Anantha Chandrakasan,2 our system achieves 3.5 to 20 times better power density. Also, it’s possible to manufacture our mechanical resonating springs using an electroplating technique compatible with microelectromechanical systems. This feature has an advantage over commercial syste ...
... Amirtharajah and Anantha Chandrakasan,2 our system achieves 3.5 to 20 times better power density. Also, it’s possible to manufacture our mechanical resonating springs using an electroplating technique compatible with microelectromechanical systems. This feature has an advantage over commercial syste ...
MPM3805 - Monolithic Power System
... 4). Only FB resistors and input and output capacitors are needed to complete the design. The high-current paths (PGND, IN and OUT) should be placed very close to the device with short, direct, and wide traces. The input capacitor needs to be as close to IN and PGND as possible. The external feedback ...
... 4). Only FB resistors and input and output capacitors are needed to complete the design. The high-current paths (PGND, IN and OUT) should be placed very close to the device with short, direct, and wide traces. The input capacitor needs to be as close to IN and PGND as possible. The external feedback ...
Lab 5 - ece.unm.edu
... 4. Repeat step 3 using a single resistor to provide the switching current . Lab Procedure: 1. Construct the differential amplifier designed in step 1 of the design procedures. Verify the circuit operation with both inputs grounded. Be careful in making voltage measurements so as not to effectively ...
... 4. Repeat step 3 using a single resistor to provide the switching current . Lab Procedure: 1. Construct the differential amplifier designed in step 1 of the design procedures. Verify the circuit operation with both inputs grounded. Be careful in making voltage measurements so as not to effectively ...
MAX8880/MAX8881 12V, Ultra-Low-I , Low-Dropout Linear Regulators with POK
... also use high base-drive currents under large loads. The MAX8880/MAX8881 do not suffer from these problems and consume only 3.5µA of supply current (see Typical Operating Characteristics). ...
... also use high base-drive currents under large loads. The MAX8880/MAX8881 do not suffer from these problems and consume only 3.5µA of supply current (see Typical Operating Characteristics). ...
Electric Motors for Machines and Mechanisms - Fab Central
... than an incremental six step approach. 2) A different kind of field position sensing such as a resolver or encoder is used to replace Hall Effects. 3) All three phase legs are excited simultaneously rather than just two legs in a six step drive. ©2012 Moog, Inc. David Marks ...
... than an incremental six step approach. 2) A different kind of field position sensing such as a resolver or encoder is used to replace Hall Effects. 3) All three phase legs are excited simultaneously rather than just two legs in a six step drive. ©2012 Moog, Inc. David Marks ...
Energy Harvesting Device - Ohio State ECE
... devised to reduce the size of the linear generator and use this for applications on a smaller scale such as supplying energy low power electronic devices used in the field by the military. This would provide great benefit because it would reduce need to rely on battery power. The design of this ...
... devised to reduce the size of the linear generator and use this for applications on a smaller scale such as supplying energy low power electronic devices used in the field by the military. This would provide great benefit because it would reduce need to rely on battery power. The design of this ...
NSS30101LT1G
... saturation voltage (VCE(sat)) and high current gain capability. These are designed for use in low voltage, high speed switching applications where affordable efficient energy control is important. Typical application are DC−DC converters and power management in portable and battery powered products ...
... saturation voltage (VCE(sat)) and high current gain capability. These are designed for use in low voltage, high speed switching applications where affordable efficient energy control is important. Typical application are DC−DC converters and power management in portable and battery powered products ...
LM138/LM338 5-Amp Adjustable Regulators
... use and require only 2 resistors to set the output voltage. Careful circuit design has resulted in outstanding load and line regulation — comparable to many commercial power supplies. The LM138 family is supplied in a standard 3-lead transistor package. A unique feature of the LM138 family is time-d ...
... use and require only 2 resistors to set the output voltage. Careful circuit design has resulted in outstanding load and line regulation — comparable to many commercial power supplies. The LM138 family is supplied in a standard 3-lead transistor package. A unique feature of the LM138 family is time-d ...
PDF
... creating a continuous trend to change the frequency during islanding. Though active methods suffer smaller NDZs, the presence of disturbances during normal operation will sacrifice power quality and reliability of the power system. But the power quality issue can be reduced by injecting the disturba ...
... creating a continuous trend to change the frequency during islanding. Though active methods suffer smaller NDZs, the presence of disturbances during normal operation will sacrifice power quality and reliability of the power system. But the power quality issue can be reduced by injecting the disturba ...
Copper losses
... Eddy current, and hysteresis losses are called ‘iron losses’. This type of loss is a magnetic loss. The eddy current, particularly within a material such as iron, can cause quite a large increase in temperature, and consequent power loss. Solution = laminated cores (these reduce the losses) Hysteres ...
... Eddy current, and hysteresis losses are called ‘iron losses’. This type of loss is a magnetic loss. The eddy current, particularly within a material such as iron, can cause quite a large increase in temperature, and consequent power loss. Solution = laminated cores (these reduce the losses) Hysteres ...
Fuji Electric UPS7000HX-T3U (300, 400, and 500kVA) 480V 3
... the development of our large-capacity UPS, which provides unparalleled efficiency and superior reliability. Based on decades of development and manufacturing experience, Fuji Electric’s UPS7000HX-T3U is the latest generation of UPS product equipped with our own patented components for optimal perfor ...
... the development of our large-capacity UPS, which provides unparalleled efficiency and superior reliability. Based on decades of development and manufacturing experience, Fuji Electric’s UPS7000HX-T3U is the latest generation of UPS product equipped with our own patented components for optimal perfor ...
Construction of a Simple Transformer to Illustrate Faraday`s Law of
... A steady current creates a steady magnetic field described by Oersted's law; [2] and a timevarying magnetic field induces an electromotive force in nearby conductors, which is described by Faraday's law of induction [2]. Mutual inductance occurs when the change in current in one inductor induces a v ...
... A steady current creates a steady magnetic field described by Oersted's law; [2] and a timevarying magnetic field induces an electromotive force in nearby conductors, which is described by Faraday's law of induction [2]. Mutual inductance occurs when the change in current in one inductor induces a v ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.