
Brief Analysis on Reasons and Solutions of Excessive Neutral
... should be used. If the input power factor of UPS is 0.8 and harmonic current is about 30% during three-phase pulse rectifying, the input power factor of UPS can be 0.95 during three-phase 12 pulse, but it still ahs 10% harmonic current component. To solve the problem of narrow and small communicatio ...
... should be used. If the input power factor of UPS is 0.8 and harmonic current is about 30% during three-phase pulse rectifying, the input power factor of UPS can be 0.95 during three-phase 12 pulse, but it still ahs 10% harmonic current component. To solve the problem of narrow and small communicatio ...
3021/3023 BuckPuck - LUXdrive LED Drivers
... Where the ability to adjust the output current to an intermediate value is required, all output current ratings are available with an on-board potentiometer. This permits the output current to be varied from approximately 40% to 110% of the rated value. When measuring the output is required to deter ...
... Where the ability to adjust the output current to an intermediate value is required, all output current ratings are available with an on-board potentiometer. This permits the output current to be varied from approximately 40% to 110% of the rated value. When measuring the output is required to deter ...
1.0 Introduction - Electrical and Computer Engineering
... report is far more efficient and less costly then the previously method used. The basic idea of the circuit is to ‘control’ the MOSFET switching and regulate the output of the circuit without the need to do any tedious functions or conversions as can be seen above with the switching from DC-AC-DC. T ...
... report is far more efficient and less costly then the previously method used. The basic idea of the circuit is to ‘control’ the MOSFET switching and regulate the output of the circuit without the need to do any tedious functions or conversions as can be seen above with the switching from DC-AC-DC. T ...
AFR 10_Manual_English-5
... starts blinking. The activation of the upeer resistive stage is internaly time and temperature limited. AFR 1xx is intended for installation on 35 mm DIN rail according to EN 50 022 and only for interior applications. It is crucially important to protect the instrument against dust, dirt and water e ...
... starts blinking. The activation of the upeer resistive stage is internaly time and temperature limited. AFR 1xx is intended for installation on 35 mm DIN rail according to EN 50 022 and only for interior applications. It is crucially important to protect the instrument against dust, dirt and water e ...
AP1530
... transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit. An enable function, an over current protection and a short circuit protection are built inside, and when OCP or SCP happens, the oper ...
... transient characteristics. The PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit. An enable function, an over current protection and a short circuit protection are built inside, and when OCP or SCP happens, the oper ...
load- and test resistors
... sheathed with a cross winding. In order to be able to realise high outputs for the same voltage with resistance tubes, it is possible to provide the ceramic tubes with a stepped winding. Advantage: this design is significantly more space-saving. For tapping different resistance values, the tube resi ...
... sheathed with a cross winding. In order to be able to realise high outputs for the same voltage with resistance tubes, it is possible to provide the ceramic tubes with a stepped winding. Advantage: this design is significantly more space-saving. For tapping different resistance values, the tube resi ...
DS1812 5V EconoReset with Active High Push-Pull Output FEATURES
... The DS1812 EconoReset uses a precision temperature reference and comparator circuit to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance ...
... The DS1812 EconoReset uses a precision temperature reference and comparator circuit to monitor the status of the power supply (VCC). When an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces reset to the active state. When VCC returns to an in-tolerance ...
Capacitor bank
... C is a capacitor bank of equivalent resistance R and self-inductance L. It drives a pair of EWAs and a pair of ballast inductors when switch S1 is closed. The load is attached between the nodes A and B when S2 closes, near the moment of peak voltage across both EWAs. ...
... C is a capacitor bank of equivalent resistance R and self-inductance L. It drives a pair of EWAs and a pair of ballast inductors when switch S1 is closed. The load is attached between the nodes A and B when S2 closes, near the moment of peak voltage across both EWAs. ...
... precautions are followed with general good EMC practice for the users complete control system. - Sensitive analog cables should not be laid next to or bound with high voltage cabling. Where possible, users should run analog cables separately. - Good cable shielding should be used. When grounding the ...
1-Bit, 10MHz, 2nd-Order, Isolated Delta
... Safety limiting intends to prevent potential damage to the isolation barrier upon failure of input or output (I/O) circuitry. A failure of the I/O circuitry can allow low resistance to ground or the supply and, without current limiting, dissipate sufficient power to overheat the die and damage the i ...
... Safety limiting intends to prevent potential damage to the isolation barrier upon failure of input or output (I/O) circuitry. A failure of the I/O circuitry can allow low resistance to ground or the supply and, without current limiting, dissipate sufficient power to overheat the die and damage the i ...
Lab 5 - facstaff.bucknell.edu
... Construct a common-source amplifier circuit with source degeneration like the one shown in Figure 1. Use an MPF-102 n-channel JFET for the active device, include the source bypass capacitor CS, and use a power supply voltage VDD of 12 V. Design the amplifier for a smallsignal voltage gain of –10 a ...
... Construct a common-source amplifier circuit with source degeneration like the one shown in Figure 1. Use an MPF-102 n-channel JFET for the active device, include the source bypass capacitor CS, and use a power supply voltage VDD of 12 V. Design the amplifier for a smallsignal voltage gain of –10 a ...
EE-339 - Analog Devices
... The Blackfin® family of embedded processors includes an optional internal programmable pulse width modulation (PWM) voltage controller. Together with a set of external components, the PWM controller provides an adjustable internal voltage power supply that can be applied to the core and on-chip memo ...
... The Blackfin® family of embedded processors includes an optional internal programmable pulse width modulation (PWM) voltage controller. Together with a set of external components, the PWM controller provides an adjustable internal voltage power supply that can be applied to the core and on-chip memo ...
FEATURES DESCRIPTION D
... supply current. At unity-gain, the OPA4820 gives > 600MHz bandwidth with < 1 dB peaking. The OPA4820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±0.8mV and an offset current of ±500nA give excellent absolute DC precisi ...
... supply current. At unity-gain, the OPA4820 gives > 600MHz bandwidth with < 1 dB peaking. The OPA4820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±0.8mV and an offset current of ±500nA give excellent absolute DC precisi ...
PowerPoint Presentation - Interfacing Methods and Circuits
... Amplifiers can also be used for impedance matching purposes even when no amplification is needed May be used for the sole purpose of signal conditioning, signal translation or for isolation Power amplifiers, which usually connect to actuators, serve similar purposes beyond providing the power necess ...
... Amplifiers can also be used for impedance matching purposes even when no amplification is needed May be used for the sole purpose of signal conditioning, signal translation or for isolation Power amplifiers, which usually connect to actuators, serve similar purposes beyond providing the power necess ...
Functions of the throttle position sensor
... (located between the seats) so the weather seal is not broken in the wiring/connection out in the engine compartment. If this seal is broken, moisture can corrode the connections to the TPS and create all sorts of problems. Once you get your TPS voltage display up, turn the ignition on but do not st ...
... (located between the seats) so the weather seal is not broken in the wiring/connection out in the engine compartment. If this seal is broken, moisture can corrode the connections to the TPS and create all sorts of problems. Once you get your TPS voltage display up, turn the ignition on but do not st ...
a Fast, High-Voltage Drive, 6-Channel Output DecDriver Decimating LCD Panel Driver
... video output and a power supply voltage rail (VCC or VEE). Temporary short circuits can reduce an output’s ability to source or sink current and, therefore, impact the device’s ability to drive a load. Short circuits of extended duration can cause metal lines to fuse open, rendering the device nonfu ...
... video output and a power supply voltage rail (VCC or VEE). Temporary short circuits can reduce an output’s ability to source or sink current and, therefore, impact the device’s ability to drive a load. Short circuits of extended duration can cause metal lines to fuse open, rendering the device nonfu ...
494-148
... impedance to the filter impedance will lead to better filtering of load current harmonics. A single active filter can be used for compensating multiple harmonics as well as for damping resonance in a power distribution system [1]. An active filter can be a VSI or CSI operating on PWM and requires a ...
... impedance to the filter impedance will lead to better filtering of load current harmonics. A single active filter can be used for compensating multiple harmonics as well as for damping resonance in a power distribution system [1]. An active filter can be a VSI or CSI operating on PWM and requires a ...
1.5MHz, 1A, STEP DOWN DC-DC CONVERTER ... Data Sheet Features
... In most applications, the part does not dissipate much heat due to its high efficiency. However, in some conditions when the part is operating in high ambient temperature with high RDS(ON) resistance and high duty cycles, such as in LDO mode, the heat dissipated may exceed the maximum junction tempe ...
... In most applications, the part does not dissipate much heat due to its high efficiency. However, in some conditions when the part is operating in high ambient temperature with high RDS(ON) resistance and high duty cycles, such as in LDO mode, the heat dissipated may exceed the maximum junction tempe ...
Ch 1. Amplifiers - University of Alabama
... Practical OP amp • Current flowing into the terminal is NOT Zero • To keep the input Tr of OP amp turned on • Causes errors proportional to feedback network R ...
... Practical OP amp • Current flowing into the terminal is NOT Zero • To keep the input Tr of OP amp turned on • Causes errors proportional to feedback network R ...
The Self-Healing Affect of - Electronic Concepts, Inc.
... vented to the atmosphere and do not have the opportunity to redeposit the conductive carbon deposits. In the end application of the finished capacitors, the self-healing mechanism is meant to provide a safeguard against permanent shorting. Shorts in the end application typically are the result of op ...
... vented to the atmosphere and do not have the opportunity to redeposit the conductive carbon deposits. In the end application of the finished capacitors, the self-healing mechanism is meant to provide a safeguard against permanent shorting. Shorts in the end application typically are the result of op ...
IX3120 - IXYS Integrated Circuits Division
... All plastic encapsulated semiconductor packages are susceptible to moisture ingression. IXYS Integrated Circuits Division classified all of its plastic encapsulated devices for moisture sensitivity according to the latest version of the joint industry standard, IPC/JEDEC J-STD-020, in force at the t ...
... All plastic encapsulated semiconductor packages are susceptible to moisture ingression. IXYS Integrated Circuits Division classified all of its plastic encapsulated devices for moisture sensitivity according to the latest version of the joint industry standard, IPC/JEDEC J-STD-020, in force at the t ...
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.