UCC38500 PFC/PWM Combination Controller
... •Voltage Feed Forward(VFF) –UC3854 Generates VFF From the Input and Requires a Two Pole Filter –UCC3817 Generates VFF Internally From the Iac Current and Only Requires a Single Pole Filter •Multiplier –The Older UC3854 Required a Bias Resistor From the Internal Reference to the Iac Pin for Proper Op ...
... •Voltage Feed Forward(VFF) –UC3854 Generates VFF From the Input and Requires a Two Pole Filter –UCC3817 Generates VFF Internally From the Iac Current and Only Requires a Single Pole Filter •Multiplier –The Older UC3854 Required a Bias Resistor From the Internal Reference to the Iac Pin for Proper Op ...
doc
... We have a voltage source (with voltage equal to the fault point voltage before the fault) in series with the fault impedance, connected from the fault point to ground with the rest of the network represented exactly as it is in the unfaulted condition except that all network sources are idl ...
... We have a voltage source (with voltage equal to the fault point voltage before the fault) in series with the fault impedance, connected from the fault point to ground with the rest of the network represented exactly as it is in the unfaulted condition except that all network sources are idl ...
6. Organization, training and methodological support of students` self
... Hardware is set of experimental set-ups with real high voltage equipment and high voltage level. They are: 1. Facility for AC and DC high voltage generation with measuring system for research electro-physical processes in gases. 2. Marx generator with pulsed voltage level up to 300 kV. 3. Marx gener ...
... Hardware is set of experimental set-ups with real high voltage equipment and high voltage level. They are: 1. Facility for AC and DC high voltage generation with measuring system for research electro-physical processes in gases. 2. Marx generator with pulsed voltage level up to 300 kV. 3. Marx gener ...
Three-channel white-LED driver uses simple step
... converter—also known as a as shown in Figure 2, the same input VCO (voltage-controlled oscillator)— voltage range of 0 to 10V produced a IC has a simple linear tuning character- tuning range of approximately 10 Hz to istic relating input voltage to output more than 1 MHz (Reference 3). frequency. It ...
... converter—also known as a as shown in Figure 2, the same input VCO (voltage-controlled oscillator)— voltage range of 0 to 10V produced a IC has a simple linear tuning character- tuning range of approximately 10 Hz to istic relating input voltage to output more than 1 MHz (Reference 3). frequency. It ...
DC684A - Linear Technology
... This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing- ...
... This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing- ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... In hard switched DC-DC converters, power switches work under high stress and tolerates high voltage and current simultaneously due to sharp turn ON and turn OFF. Though snubber circuits minimize dv/dt and di/dt effects they bring limitation on the maximum frequency of operation. Soft switching reduc ...
... In hard switched DC-DC converters, power switches work under high stress and tolerates high voltage and current simultaneously due to sharp turn ON and turn OFF. Though snubber circuits minimize dv/dt and di/dt effects they bring limitation on the maximum frequency of operation. Soft switching reduc ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... The function of the prime mover and the energy transmitting device is to impart the motion and operate actual apparatus. The most commonly used prime mover is, of course an electric motor, since it is far superior in performance to steam, hydraulic, diesel and other types of engines. Electric motors ...
... The function of the prime mover and the energy transmitting device is to impart the motion and operate actual apparatus. The most commonly used prime mover is, of course an electric motor, since it is far superior in performance to steam, hydraulic, diesel and other types of engines. Electric motors ...
Title: Design Considerations for High Step
... SLHC. With the planned changes the existing powering scheme will have an estimated efficiency of about 10% if the existing cables are reused. Due to space and mass constraints these cables would be difficult to change or made larger. A system featuring DC-DC converters with a voltage ratio of ten wo ...
... SLHC. With the planned changes the existing powering scheme will have an estimated efficiency of about 10% if the existing cables are reused. Due to space and mass constraints these cables would be difficult to change or made larger. A system featuring DC-DC converters with a voltage ratio of ten wo ...
Interconnection Application/Agreement - Part 1
... the specific information necessary for the EDC to adequately evaluate the impact of the proposed facility on the EDC’s electrical distribution system at the time of the initial application. Often times the equipment for which this information is needed hasn’t been specified. The type information nec ...
... the specific information necessary for the EDC to adequately evaluate the impact of the proposed facility on the EDC’s electrical distribution system at the time of the initial application. Often times the equipment for which this information is needed hasn’t been specified. The type information nec ...
NCP699 150 mA CMOS Low Iq LDO with Enable in TSOP-5
... As power across the NCP699 increases, it might become necessary to provide some thermal relief. The maximum power dissipation supported by the device is dependent upon board design and layout. Mounting pad configuration on the PCB, the board material and also the ambient temperature effect the rate ...
... As power across the NCP699 increases, it might become necessary to provide some thermal relief. The maximum power dissipation supported by the device is dependent upon board design and layout. Mounting pad configuration on the PCB, the board material and also the ambient temperature effect the rate ...
Megger Insulation Tester Safety
... IEC 61010-‐1 defines the design requirements for instruments that declare a specific category rating and specifies both the electrical and physical requirements. The electrical environment changes radically as cur ...
... IEC 61010-‐1 defines the design requirements for instruments that declare a specific category rating and specifies both the electrical and physical requirements. The electrical environment changes radically as cur ...
HIGH EFFICIENCY 3-PHASE CMOS RECTIFIER WITH STEP UP AND REGULATED
... because charge pumps a) are generally designed for one specific voltage ratio, and b) offer high efficiency only if this ratio is observed. To perform the step-up stage, a boost converter was therefore chosen, and has been realised using the self-powered commercial circuit MAX1676. This component in ...
... because charge pumps a) are generally designed for one specific voltage ratio, and b) offer high efficiency only if this ratio is observed. To perform the step-up stage, a boost converter was therefore chosen, and has been realised using the self-powered commercial circuit MAX1676. This component in ...
2STW4468
... Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ...
... Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ...
481 Zone Expansion Interface Card
... 1. DMP recommends using 18 or 22-gauge unshielded wire for all keypad and LX-Bus circuits. Do Not use twisted pair or shielded wire for LX-Bus and keypad bus data circuits. To maintain auxiliary power integrity when using 22-gauge wire do not exceed 500 feet. When using 18-gauge wire do not exceed 1 ...
... 1. DMP recommends using 18 or 22-gauge unshielded wire for all keypad and LX-Bus circuits. Do Not use twisted pair or shielded wire for LX-Bus and keypad bus data circuits. To maintain auxiliary power integrity when using 22-gauge wire do not exceed 500 feet. When using 18-gauge wire do not exceed 1 ...
Optimized Distribution Feeder Protection With Remote and Local
... beyond a delta-wye transformer bank, just as it would be for a unit transformer connected to a generator. The resultant voltage VS lags voltage VA by 330° because of the phase shift introduced by the delta-wye transformer bank. In this case, “SYNCP” is set = 330. Setting “SYNCP” = 330 accounts for t ...
... beyond a delta-wye transformer bank, just as it would be for a unit transformer connected to a generator. The resultant voltage VS lags voltage VA by 330° because of the phase shift introduced by the delta-wye transformer bank. In this case, “SYNCP” is set = 330. Setting “SYNCP” = 330 accounts for t ...
Instantaneous Power Measurement using Hall Sensor
... Abstract- Power consumption is an important area which has various applications. However, in most cases, the amount of electricity consumed by an applicance is not readily apparent. Many devices are equipped with an information tag with states the power consumption ,but this is typically an average ...
... Abstract- Power consumption is an important area which has various applications. However, in most cases, the amount of electricity consumed by an applicance is not readily apparent. Many devices are equipped with an information tag with states the power consumption ,but this is typically an average ...
Choose the best answer to each question and write the appropriate
... Choose the best answer to each question and write the appropriate letter in the space provided. ...
... Choose the best answer to each question and write the appropriate letter in the space provided. ...
US6T7
... The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants cont ...
... The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants cont ...
Mitigation of Inrush Currents in Network Transformers by Reducing
... current with zero residual flux is only 210 A (22 p.u.). Therefore, substantial improvement can be obtained when the residual flux is eliminated. Inrush currents have been reduced by 60% by eliminating the residual flux. B. Three-Phase Transformer Fig. 12 shows the circuit used to demagnetize a 500- ...
... current with zero residual flux is only 210 A (22 p.u.). Therefore, substantial improvement can be obtained when the residual flux is eliminated. Inrush currents have been reduced by 60% by eliminating the residual flux. B. Three-Phase Transformer Fig. 12 shows the circuit used to demagnetize a 500- ...
Three-phase electric power
Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.