ISSI DDR2 SDRAM Design Considerations Guide
... condition for the device that assumes ideal voltage conditions without current deficiencies. VDD and VDDQ often share the same power plane in the board, which can result in level shifts on VDD. This condition is caused by DDR2 high frequency I/O switching (VDDQ) which consumes a large amount of curr ...
... condition for the device that assumes ideal voltage conditions without current deficiencies. VDD and VDDQ often share the same power plane in the board, which can result in level shifts on VDD. This condition is caused by DDR2 high frequency I/O switching (VDDQ) which consumes a large amount of curr ...
Chapter 3 - Automation Direct
... Circuit protection fuses should be rated to allow for the extended start times associated with the use of a Soft Starter. Traditional HRC motor fuses may need to be rated higher than the motor rated current for normal low-inertia applications, but modern “extended start” fuses will generally give fu ...
... Circuit protection fuses should be rated to allow for the extended start times associated with the use of a Soft Starter. Traditional HRC motor fuses may need to be rated higher than the motor rated current for normal low-inertia applications, but modern “extended start” fuses will generally give fu ...
Group C
... battery. This mainly because batteries have high energy density as compared to a capacitor bank even though batteries can’t handle huge peaks in current. Using data from Siemens and results from the energy and grid analysis, we suggested using a bidirectional step-down converter. But after consultin ...
... battery. This mainly because batteries have high energy density as compared to a capacitor bank even though batteries can’t handle huge peaks in current. Using data from Siemens and results from the energy and grid analysis, we suggested using a bidirectional step-down converter. But after consultin ...
Electronics_Engineering_MT_2
... B. only if a bit in the interrupt mask is made 0 C. only if interrupts have been enabled by an EI instruction ...
... B. only if a bit in the interrupt mask is made 0 C. only if interrupts have been enabled by an EI instruction ...
MC3479 PCB Description - ME210-CKA
... Motorola’s MC3479 provides logic and power drive stages for controlling 2-phase bipolar stepper motors. It has output stages capable of supplying up to 350mA/phase. The maximum current supplied to a motor is internally limited by the MC3479, and this current limit may be adjusted by the selection of ...
... Motorola’s MC3479 provides logic and power drive stages for controlling 2-phase bipolar stepper motors. It has output stages capable of supplying up to 350mA/phase. The maximum current supplied to a motor is internally limited by the MC3479, and this current limit may be adjusted by the selection of ...
Datasheet
... across sprawling industrial environments typical of industrial applications. The 115E-2 can serve as an end node or network gateway and is scalable to thousands of nodes. Gather-scatter and block mapping technology offers the efficient use of network resources, allowing point-to-point transfer of pr ...
... across sprawling industrial environments typical of industrial applications. The 115E-2 can serve as an end node or network gateway and is scalable to thousands of nodes. Gather-scatter and block mapping technology offers the efficient use of network resources, allowing point-to-point transfer of pr ...
2. - AIUB Solution
... 1. The value of β was measured by using a multimeter for each transistor.. 2. Calculated DC operating point of the transistor circuit. 3. Implement the circuit as shown in the figure. 4. Measured the operating point with the help of table: 1 and compare with your calculated value. 5. Feed ac Signal ...
... 1. The value of β was measured by using a multimeter for each transistor.. 2. Calculated DC operating point of the transistor circuit. 3. Implement the circuit as shown in the figure. 4. Measured the operating point with the help of table: 1 and compare with your calculated value. 5. Feed ac Signal ...
Siemens Programmable Variable Speed DC Drives Applied to Wet
... Each drive can be programmed using the keypad on the drive or through a serial port using software such as PC-INN from Siemens. The serial port is by far the easiest way. PC-INN dumps a text file from the computer into the drive through the serial port. When programming the drive for a CTI installat ...
... Each drive can be programmed using the keypad on the drive or through a serial port using software such as PC-INN from Siemens. The serial port is by far the easiest way. PC-INN dumps a text file from the computer into the drive through the serial port. When programming the drive for a CTI installat ...
Manual - CNCRoom
... Full Stepper, 1/2, 1/4, 1/8, 1/16 selectable with jumper and fixed for 1/10, 1/12 model. Accurate drive current setting by plug-in resistor, or vary setting from 330 mA to 3 Amp with on board trimpot. Accurate Idle current setting with plug-in resistor. Selectable charge-pump frequency detection fro ...
... Full Stepper, 1/2, 1/4, 1/8, 1/16 selectable with jumper and fixed for 1/10, 1/12 model. Accurate drive current setting by plug-in resistor, or vary setting from 330 mA to 3 Amp with on board trimpot. Accurate Idle current setting with plug-in resistor. Selectable charge-pump frequency detection fro ...
2011 Efficient Multiphysics Analysis of Drum Rollers Mircea Popescu INDUCTICA TECHNICAL CONFERENCE
... The necessary complexity of the sub-models differs. While the mechanic load could be described by relatively simple equations, the electro-magnetic motor model is rather complex due to the consideration of non-linear dependencies like the skin effect and the iron losses. The thermal network of the e ...
... The necessary complexity of the sub-models differs. While the mechanic load could be described by relatively simple equations, the electro-magnetic motor model is rather complex due to the consideration of non-linear dependencies like the skin effect and the iron losses. The thermal network of the e ...
The Modelling , Simulation and Control of a 50 kW Vertical Axis
... disassembled and moved to a new location and reassembled at new connection point either to an isolated load or to the grid.The most common special feature about wind turbines is the fact that, unlike other generation systems, the power inflow rate is not controllable [3]. In most generation systems, ...
... disassembled and moved to a new location and reassembled at new connection point either to an isolated load or to the grid.The most common special feature about wind turbines is the fact that, unlike other generation systems, the power inflow rate is not controllable [3]. In most generation systems, ...
System Identification and Integration Design of an Air/Electric Motor
... Currently in Taiwan, there are more than 15 million motorcycles, mostly driven by internal combustion engines (ICEs) [1]. As a result, great amounts of air pollutants are generated by motorcycles and then released into the atmosphere, and this is one of the major reasons causing global warming and d ...
... Currently in Taiwan, there are more than 15 million motorcycles, mostly driven by internal combustion engines (ICEs) [1]. As a result, great amounts of air pollutants are generated by motorcycles and then released into the atmosphere, and this is one of the major reasons causing global warming and d ...
262-30x Digital Panel Meter Relays
... sinusoidal current. Current waveforms are at best distorted sinewaves, but generally have much more complex shapes. Voltage waveforms are generally sinusoidal with some distortion, except for older UPS loads, where square waves are not uncommon. Low cost meters are generally "RMS calibrated" and are ...
... sinusoidal current. Current waveforms are at best distorted sinewaves, but generally have much more complex shapes. Voltage waveforms are generally sinusoidal with some distortion, except for older UPS loads, where square waves are not uncommon. Low cost meters are generally "RMS calibrated" and are ...
Electronics Engineering - Dronacharya College of Engineering
... FET ( Field Effect Transistor) Few important advantages of FET over conventional Transistors ...
... FET ( Field Effect Transistor) Few important advantages of FET over conventional Transistors ...
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.