Modeling of Eddy-Current Loss of Electrical Machines and Transformers
... renewable energy systems with the utility grid, or to be used as power factor correction devices. Pulsewidth modulation (PWM) voltage control is widely utilized in modern power converters. The high-frequency harmonics in the output voltage induce additional losses in the electric machines or transfo ...
... renewable energy systems with the utility grid, or to be used as power factor correction devices. Pulsewidth modulation (PWM) voltage control is widely utilized in modern power converters. The high-frequency harmonics in the output voltage induce additional losses in the electric machines or transfo ...
pat3147447_fender.pdf
... through winding portion 21 and capacitor 22, due to the relatively low value of capacitor 22. Thus, lower-frequency currents at tap 28 must pass primarily through 35 rheostat winding 24 to ground. The bass response is affected somewhat by the setting of the slider 23 of the treble control. However, ...
... through winding portion 21 and capacitor 22, due to the relatively low value of capacitor 22. Thus, lower-frequency currents at tap 28 must pass primarily through 35 rheostat winding 24 to ground. The bass response is affected somewhat by the setting of the slider 23 of the treble control. However, ...
AN-828 Increasing the High Speed Torque of
... constants by four and allows the rated supply voltage to be increased by a factor of four. Both the crispness of the response and the high speed torque are increased. While the rotor holds position or moves at low step rates, the series power resistors protect the motor by holding the winding curren ...
... constants by four and allows the rated supply voltage to be increased by a factor of four. Both the crispness of the response and the high speed torque are increased. While the rotor holds position or moves at low step rates, the series power resistors protect the motor by holding the winding curren ...
INDUSTRIAL SERVO CONTROL SYSTEMS Fundamentals and
... configurations, with the most popular circuit being the three-phase, half-wave amplifier. For reference, this circuit design for a Gettys DC drive is shown in Figure 7. Each circuit design for the SCR has an efficiency rating, represented by the form factor, which is a measure of the amount of ripple c ...
... configurations, with the most popular circuit being the three-phase, half-wave amplifier. For reference, this circuit design for a Gettys DC drive is shown in Figure 7. Each circuit design for the SCR has an efficiency rating, represented by the form factor, which is a measure of the amount of ripple c ...
Kosky, Wise, Balmer, Keat: Exploring Engineering, Second Edition
... Then across either of the 1,000 Ω resistors, (V – 0) = ½ I × 1.0 × 103. These are two equations in two unknowns and solving by eliminating V gives 12 = I × (1.0 × 102 + ½ × 1.0 × 103) ∴ I = 12/(1.0 × 102 + ½ × 1.0 × 103) [V][A/V] = 0.020 A (Incidentally if you also needed V it is 10. volts. This is ...
... Then across either of the 1,000 Ω resistors, (V – 0) = ½ I × 1.0 × 103. These are two equations in two unknowns and solving by eliminating V gives 12 = I × (1.0 × 102 + ½ × 1.0 × 103) ∴ I = 12/(1.0 × 102 + ½ × 1.0 × 103) [V][A/V] = 0.020 A (Incidentally if you also needed V it is 10. volts. This is ...
LTC6603
... resistor with an accuracy of 3.5% or better. The external resistor programs an internal oscillator whose frequency is divided prior to being applied to the filter networks. This allows up to three cutoff frequencies that can be obtained for each external resistor value, allowing the cutoff frequency ...
... resistor with an accuracy of 3.5% or better. The external resistor programs an internal oscillator whose frequency is divided prior to being applied to the filter networks. This allows up to three cutoff frequencies that can be obtained for each external resistor value, allowing the cutoff frequency ...
MX15 Series AC and DC Power Source User Manual
... Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any cable. In normal operation, the operator does not have access to hazardous voltages within the chassis. However, depending on the user’s application configuration, HIGH VOLTAGES HAZARDOUS TO HUMAN SAF ...
... Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any cable. In normal operation, the operator does not have access to hazardous voltages within the chassis. However, depending on the user’s application configuration, HIGH VOLTAGES HAZARDOUS TO HUMAN SAF ...
Voltage differencing transconductance amplifier
... and capacitors using various active elements have been introduced in the literature1-16. A survey of the literature shows that the floating simulator realizations1-16 still suffer from the following ...
... and capacitors using various active elements have been introduced in the literature1-16. A survey of the literature shows that the floating simulator realizations1-16 still suffer from the following ...
DW1000 Datasheet
... The DW1000, as supplied from Decawave, has not been certified for use in any particular geographic region by the appropriate regulatory body governing radio emissions in that region although it is capable of such certification depending on the region and the manner in which it is used. All products ...
... The DW1000, as supplied from Decawave, has not been certified for use in any particular geographic region by the appropriate regulatory body governing radio emissions in that region although it is capable of such certification depending on the region and the manner in which it is used. All products ...
MAX5039, MAX5040
... the gate-to-source turn-on threshold of the external Nchannel MOSFET) and I/O voltages ranging from VCORE to 4V. The MAX5039/MAX5040 provide tracking control of the I/O and CORE voltages using a single external N-channel MOSFET connected across them. This MOSFET is not in series with the power paths ...
... the gate-to-source turn-on threshold of the external Nchannel MOSFET) and I/O voltages ranging from VCORE to 4V. The MAX5039/MAX5040 provide tracking control of the I/O and CORE voltages using a single external N-channel MOSFET connected across them. This MOSFET is not in series with the power paths ...
Si5345/44/42 - Silicon Labs
... 3. Rise and fall times can be estimated using the following simplified equation: tr/tf80-20 = ((0.8 – 0.2) x VIN_Vpp_se) / SR 4. This mode is intended primarily for single-ended LVCMOS input clocks < 1 MHz that must be dc-coupled because they have a duty cycle significantly less than 50%. A typical ...
... 3. Rise and fall times can be estimated using the following simplified equation: tr/tf80-20 = ((0.8 – 0.2) x VIN_Vpp_se) / SR 4. This mode is intended primarily for single-ended LVCMOS input clocks < 1 MHz that must be dc-coupled because they have a duty cycle significantly less than 50%. A typical ...
application note
... Recharging a Deep Discharged Battery In the case of a deep discharged NiMH cell, the battery must not be charged with a fast charge current rate until the battery voltage is at least 0.9V. This can be done by adding a resistor between VUSB the chip VDD (see Figure 7). The resistor is dimensionned to ...
... Recharging a Deep Discharged Battery In the case of a deep discharged NiMH cell, the battery must not be charged with a fast charge current rate until the battery voltage is at least 0.9V. This can be done by adding a resistor between VUSB the chip VDD (see Figure 7). The resistor is dimensionned to ...
CM-35XT Loop-Powered Panel Meter 3 1/2 Digit 0.48” LCD
... counterpart, the CM-35XTL, has the same pinout as the CM35XT but requires only a 1.0V loop drop to operate, making it particularly suitable for current loops that would otherwise exceed their power supply capacity with too many devices connected. The meters feature Display Hold, Display Test and Aut ...
... counterpart, the CM-35XTL, has the same pinout as the CM35XT but requires only a 1.0V loop drop to operate, making it particularly suitable for current loops that would otherwise exceed their power supply capacity with too many devices connected. The meters feature Display Hold, Display Test and Aut ...
solid-state devices and circuits
... that has put the power of a full-scale computer into a pocket or purse. But size and weight reduction have long ceased to be the principal objectives on integrated circuits. Though vitally important in certain applications such as medical electronics and space apparatus, the physical characteristics ...
... that has put the power of a full-scale computer into a pocket or purse. But size and weight reduction have long ceased to be the principal objectives on integrated circuits. Though vitally important in certain applications such as medical electronics and space apparatus, the physical characteristics ...
Three-Phase Induction Motor Operating from Single
... supply, with proper choice of the capacitor phase converter, could be as high as 70% of a balanced rating three-phase motor for the same frame size. This makes the three-phase motor almost as good as a well designed single-phase motor. Further, the three-phase motor is cheaper than single-phase moto ...
... supply, with proper choice of the capacitor phase converter, could be as high as 70% of a balanced rating three-phase motor for the same frame size. This makes the three-phase motor almost as good as a well designed single-phase motor. Further, the three-phase motor is cheaper than single-phase moto ...
1. WHAT IS METER
... Operating section of (SEM) a) Analog Section: High precision Current transformer and voltage transformer step down input currents and voltages which are fed to an Analog to Digital converter. b) Digital Section: A powerful microprocessor controls the Analog and Digital sections. Analog to Digital c ...
... Operating section of (SEM) a) Analog Section: High precision Current transformer and voltage transformer step down input currents and voltages which are fed to an Analog to Digital converter. b) Digital Section: A powerful microprocessor controls the Analog and Digital sections. Analog to Digital c ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.