AN2839
... specialized IC products. The L6228 is a fully-integrated stepper motor driver IC specifically developed to drive a wide range of two-phase (bipolar) stepper motors. This IC is a onechip, cost-effective solution that includes several unique circuit design features. These features, including a decodin ...
... specialized IC products. The L6228 is a fully-integrated stepper motor driver IC specifically developed to drive a wide range of two-phase (bipolar) stepper motors. This IC is a onechip, cost-effective solution that includes several unique circuit design features. These features, including a decodin ...
Noise Reduction in VFDs
... sizing the drive to handle the higher input current and DC bus ripple. Some 480 V drives require adding additional capacitance plus double sizing the drive. Line reactors reduce the peak current; but also reduces bus V. Schneider Electric - Industry Business – Jim Crook – 2013-06-26 ...
... sizing the drive to handle the higher input current and DC bus ripple. Some 480 V drives require adding additional capacitance plus double sizing the drive. Line reactors reduce the peak current; but also reduces bus V. Schneider Electric - Industry Business – Jim Crook – 2013-06-26 ...
RFFM3482Q
... 54Mbps OFDM modulation, and 21dBm under 1Mbps 11b modulation. The RFFM3482Q requires a single positive supply of 3.3V to 4.2V to operate at full specifications. PA control for the 802.11b/g/n band is provided through one bias control input pin (PA_EN). The PA_EN pin requires a regulated supply to ma ...
... 54Mbps OFDM modulation, and 21dBm under 1Mbps 11b modulation. The RFFM3482Q requires a single positive supply of 3.3V to 4.2V to operate at full specifications. PA control for the 802.11b/g/n band is provided through one bias control input pin (PA_EN). The PA_EN pin requires a regulated supply to ma ...
Low Power Design for D-Flip Flops
... Triggering Flip Flop, Low Swing Double Edge Flip Flop, Multi Threshold CMOS and Conditional Data Mapping Flip Flop. In this paper, various designs are presented by connecting limited number of transistors and as the transistors used have small area and low power consumption, they can be used in buff ...
... Triggering Flip Flop, Low Swing Double Edge Flip Flop, Multi Threshold CMOS and Conditional Data Mapping Flip Flop. In this paper, various designs are presented by connecting limited number of transistors and as the transistors used have small area and low power consumption, they can be used in buff ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... steady-state periodic waveforms, which deform the supply signal, are termed as harmonics. Recent few years have witnessed rapid growth in harmonic voltages and currents injected into the power system due to the increased utilization of non-linear loads. In addition, devices employing high frequency ...
... steady-state periodic waveforms, which deform the supply signal, are termed as harmonics. Recent few years have witnessed rapid growth in harmonic voltages and currents injected into the power system due to the increased utilization of non-linear loads. In addition, devices employing high frequency ...
UCC2581 数据资料 dataSheet 下载
... A Typical Micropower Application The circuit shown in Fig. 3 illustrates the use of the UCC3581 in a micropower application. The isolated 5V flyback power supply uses a minimum of parts and operates over an 8:1 input voltage range (15VDC to 120VDC) while delivering a regulated 5V output with a load ...
... A Typical Micropower Application The circuit shown in Fig. 3 illustrates the use of the UCC3581 in a micropower application. The isolated 5V flyback power supply uses a minimum of parts and operates over an 8:1 input voltage range (15VDC to 120VDC) while delivering a regulated 5V output with a load ...
Analysis and Mitigation of Voltage Offsets in Multi-inverter
... and this paper will discuss them. Detailed examination will be provided to circulating currents due to differences in outputvoltage magnitudes of the inverters and differences in the dc offsets present in the inverter output voltages. The difference in voltage magnitudes between inverters causes the ...
... and this paper will discuss them. Detailed examination will be provided to circulating currents due to differences in outputvoltage magnitudes of the inverters and differences in the dc offsets present in the inverter output voltages. The difference in voltage magnitudes between inverters causes the ...
excerpt
... increase in current. In some cases, protective devices which sense only current may not provide complete single-phasing protection. However, PRACTICAL experience has demonstrated that motor running overload devices properly sized and maintained can greatly reduce the problems of single-phasing for t ...
... increase in current. In some cases, protective devices which sense only current may not provide complete single-phasing protection. However, PRACTICAL experience has demonstrated that motor running overload devices properly sized and maintained can greatly reduce the problems of single-phasing for t ...
Bistable Rotary Solenoid
... for any rebound to die down, as the end-stop conditions will vary with customer implementation and are not under Geeplus control. ...
... for any rebound to die down, as the end-stop conditions will vary with customer implementation and are not under Geeplus control. ...
How To Configure a 555 Timer IC
... starts the 5 second timing interval and turns on LED1. At the end of the timing interval LED1 will turn off. During normal operation switch S2 connects pin 4 to the supply voltage. To stop the timer before the end of the timing interval you set S2 to the “Reset” position which connects pin 4 to grou ...
... starts the 5 second timing interval and turns on LED1. At the end of the timing interval LED1 will turn off. During normal operation switch S2 connects pin 4 to the supply voltage. To stop the timer before the end of the timing interval you set S2 to the “Reset” position which connects pin 4 to grou ...
Optimizing Power Management in Solenoid Valves
... substantial “iron losses” (hysteresis and eddy currents) can account for half of its power dissipation. AC is also not as suitable to many modern industrial applications that use programmable logic controllers (PLCs), distributed control systems (DCSs), and other digital technologies that automate f ...
... substantial “iron losses” (hysteresis and eddy currents) can account for half of its power dissipation. AC is also not as suitable to many modern industrial applications that use programmable logic controllers (PLCs), distributed control systems (DCSs), and other digital technologies that automate f ...
Hysteresis Brake and Clutch user`s manual.
... Magtrol Hysteresis Brakes are DC-powered devices. The amount of braking torque transmitted by the brake is proportional to the amount of current flowing through the brake coil. The direction of current flow (polarity) is of no consequence to the operation of the brake, however, the normal convention ...
... Magtrol Hysteresis Brakes are DC-powered devices. The amount of braking torque transmitted by the brake is proportional to the amount of current flowing through the brake coil. The direction of current flow (polarity) is of no consequence to the operation of the brake, however, the normal convention ...
Protection Description
... b tripping according to the equal-area criterion, time-delayed b tripping according to power swing (number of active power swings): v suitable for generators capable of withstanding high electrical and mechanical constraints v to be set as a number of rotations. The 2 types of operation may be used ...
... b tripping according to the equal-area criterion, time-delayed b tripping according to power swing (number of active power swings): v suitable for generators capable of withstanding high electrical and mechanical constraints v to be set as a number of rotations. The 2 types of operation may be used ...
VCM TCM LCM Data Sheet/Manual PDF
... These modules provide a convenient way to adapt RLC Counters to most any machine control voltage signal. They also make it easy to upgrade electromechanical counter installations with RLC Counters. VCM’s are available in two input voltage ranges that cover the spectrum from 4-270 V. The non-polarize ...
... These modules provide a convenient way to adapt RLC Counters to most any machine control voltage signal. They also make it easy to upgrade electromechanical counter installations with RLC Counters. VCM’s are available in two input voltage ranges that cover the spectrum from 4-270 V. The non-polarize ...
chapter_10
... Figure 10.15 Realization of the exclusive-OR (XOR) function: (a) The PUN synthesized directly from the expression in Eq. (10.25). (b) The complete XOR realization utilizing the PUN in (a) and a PDN that is synthesized directly from the expression in Eq. (10.26). Note that two inverters (not shown) ...
... Figure 10.15 Realization of the exclusive-OR (XOR) function: (a) The PUN synthesized directly from the expression in Eq. (10.25). (b) The complete XOR realization utilizing the PUN in (a) and a PDN that is synthesized directly from the expression in Eq. (10.26). Note that two inverters (not shown) ...
Gain Equalization Improves Flyback Performance
... Fig. 2 shows the circuit with linear control, which results in the output current being proportional to VC2. From Fig. 3, E1 and E2 are used to force the current-mode statespace flyback model to operate in voltage mode. R1 through R8, D1, D5, D6, D7 and X6 comprise the log converter, which performs t ...
... Fig. 2 shows the circuit with linear control, which results in the output current being proportional to VC2. From Fig. 3, E1 and E2 are used to force the current-mode statespace flyback model to operate in voltage mode. R1 through R8, D1, D5, D6, D7 and X6 comprise the log converter, which performs t ...
ASCO White Paper Optimizing Power Management in Solenoid Valves
... substantial “iron losses” (hysteresis and eddy currents) can account for half of its power dissipation. AC is also not as suitable to many modern industrial applications that use programmable logic controllers (PLCs), distributed control systems (DCSs), and other digital technologies that automate f ...
... substantial “iron losses” (hysteresis and eddy currents) can account for half of its power dissipation. AC is also not as suitable to many modern industrial applications that use programmable logic controllers (PLCs), distributed control systems (DCSs), and other digital technologies that automate f ...
Product news - Danielson Europe
... The UMT-H has been extended with 7 additional rated currents and is now offered with a total of 24 rated currents, which cover the rated currents between 160 mA and 30 A. The compact SMD fuse stands out with its high breaking capacity. With its square, compact design, it is the space saving alternat ...
... The UMT-H has been extended with 7 additional rated currents and is now offered with a total of 24 rated currents, which cover the rated currents between 160 mA and 30 A. The compact SMD fuse stands out with its high breaking capacity. With its square, compact design, it is the space saving alternat ...
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.