from ucd.ie - the RF and Microwave Research Group at UCD
... Ideally, the digitally assisted envelope amplifier in Fig. 7 can achieve high efficiency for wideband signals by properly designing the switch control signal to force the switcher to provide the majority of the required output current. However, because the digital switch control is an open loop stru ...
... Ideally, the digitally assisted envelope amplifier in Fig. 7 can achieve high efficiency for wideband signals by properly designing the switch control signal to force the switcher to provide the majority of the required output current. However, because the digital switch control is an open loop stru ...
lecture1423722706
... the source current, and then finds its way to the desired unknown. In Fig (a), for instance, the voltage V4 is desired. The absence of a single series or parallel path to V4 from the source immediately reveals that the methods introduced in the last two chapters cannot be applied here. First, series ...
... the source current, and then finds its way to the desired unknown. In Fig (a), for instance, the voltage V4 is desired. The absence of a single series or parallel path to V4 from the source immediately reveals that the methods introduced in the last two chapters cannot be applied here. First, series ...
Laboratory #4 Diode Basics and Applications (II)
... The line regulation is defined as equation (2): Vout rZ Line regulation ...
... The line regulation is defined as equation (2): Vout rZ Line regulation ...
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Characterization of an n-type 4 kV Silicon GTO for pulsed power
... 24. Experimental results of TD @ VPS = 1 kV ...................................................... 34 25. Experimental results of TD @ VPS = 2 kV ...................................................... 35 26. Experimental results of TD @ VPS = 3 kV .................................................... ...
... 24. Experimental results of TD @ VPS = 1 kV ...................................................... 34 25. Experimental results of TD @ VPS = 2 kV ...................................................... 35 26. Experimental results of TD @ VPS = 3 kV .................................................... ...
03046
... type of grounding implemented on the system. The settings for ground protection in the Cooper Form 5 and Form 6 controls and the Idea™ relay will also be different based on the applied method of grounding. Examples of how each is set for a four-wire, multiple-grounded system will not assist in setti ...
... type of grounding implemented on the system. The settings for ground protection in the Cooper Form 5 and Form 6 controls and the Idea™ relay will also be different based on the applied method of grounding. Examples of how each is set for a four-wire, multiple-grounded system will not assist in setti ...
III. Eliminating transmission line mismatch
... wavelength of the line signal. As a result, a physically long line may have a short electrical length if a low-frequency signal (long ) is being transmitted and vice versa. ...
... wavelength of the line signal. As a result, a physically long line may have a short electrical length if a low-frequency signal (long ) is being transmitted and vice versa. ...
HP 34401A User`s Guide
... and a properly functioning multimeter will measure the signals received. The entire measurement path, including the power line, act as a loop antenna. Circulating currents in the loop will create error voltages across any impedances in series with the multimeter’s input. For this reason, you should ...
... and a properly functioning multimeter will measure the signals received. The entire measurement path, including the power line, act as a loop antenna. Circulating currents in the loop will create error voltages across any impedances in series with the multimeter’s input. For this reason, you should ...
AC Sources - Operating 3.8.1 3.8 ELECTRICAL POWER SYSTEMS
... performed to reestablish OPERABILITY provided an assessment determines the safety of the plant is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR. 2. ] If performed with EDG synchronized with offsite power, it shall be performed at a power factor ≤ 0.9. However, ...
... performed to reestablish OPERABILITY provided an assessment determines the safety of the plant is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR. 2. ] If performed with EDG synchronized with offsite power, it shall be performed at a power factor ≤ 0.9. However, ...
ILXGHB Series
... After power interruption, auxiliary Quartz lamp is automatically energized when power is restored and remains on during run down, restrike and ramp up. ...
... After power interruption, auxiliary Quartz lamp is automatically energized when power is restored and remains on during run down, restrike and ramp up. ...
Document
... town driving has been reported for Toyota Prius but the additional electrical equipment has been rated at 3000 USD. PM-RSM or transverse flux PM rotor configurations are currently proposed as they are credited with slightly less initial system costs for lower total system losses. University “Politeh ...
... town driving has been reported for Toyota Prius but the additional electrical equipment has been rated at 3000 USD. PM-RSM or transverse flux PM rotor configurations are currently proposed as they are credited with slightly less initial system costs for lower total system losses. University “Politeh ...
C:\Users\roland\Documents\WTT2013\WTT-LED
... Damaged LEDs will show some unusual characteristics such as the leak current remarkably increases, the forward voltage becomes lower, or the LEDs do not light at the low current. Criteria: (VF>2.0V at IF=0.5mA) (4) Heat Generation a. Thermal design of the end product was most importance. Please cons ...
... Damaged LEDs will show some unusual characteristics such as the leak current remarkably increases, the forward voltage becomes lower, or the LEDs do not light at the low current. Criteria: (VF>2.0V at IF=0.5mA) (4) Heat Generation a. Thermal design of the end product was most importance. Please cons ...
Elite™ 5000W
... volts alternating household current (120V AC). It easily powers TV/VCR combinations, small microwave ovens, and refrigerators. It also operates at high efficiency (up to 90%) that results in long running time and extended battery life compared to other inverters with this level of power output. This ...
... volts alternating household current (120V AC). It easily powers TV/VCR combinations, small microwave ovens, and refrigerators. It also operates at high efficiency (up to 90%) that results in long running time and extended battery life compared to other inverters with this level of power output. This ...
Cowman? Form? HA/GMS
... > circuits 35-36 and 3l—-38 are tuned. ever, certain disadvantages are present. For In Fig. 2' the voltage vector of the circuit 35-36 example, the transmitter condenser can only vary , is indicated by O-A. The voltage vector of they from minimum value to maximum value repre circuit 31-38 is indicat ...
... > circuits 35-36 and 3l—-38 are tuned. ever, certain disadvantages are present. For In Fig. 2' the voltage vector of the circuit 35-36 example, the transmitter condenser can only vary , is indicated by O-A. The voltage vector of they from minimum value to maximum value repre circuit 31-38 is indicat ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... the motor turning. A BLDC motor has trapezoidal waveform back-EMF with 120 electrical- degree wide conducting period .The current is rectangular in shape. At any instant of time during operation, or during one conducting period which is 60 electrical degrees, two of the stator phases are excited as ...
... the motor turning. A BLDC motor has trapezoidal waveform back-EMF with 120 electrical- degree wide conducting period .The current is rectangular in shape. At any instant of time during operation, or during one conducting period which is 60 electrical degrees, two of the stator phases are excited as ...
Power electronics
Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)