Integrated Charger, Dual Main Step
... Separate enable inputs for each SMPS and a combined open-drain power-good output allow flexible power sequencing. Voltage soft-start reduces inrush current, while passive shutdown discharges the output through an internal switch. Fast transient response, with an extended on-time feature reduces ou ...
... Separate enable inputs for each SMPS and a combined open-drain power-good output allow flexible power sequencing. Voltage soft-start reduces inrush current, while passive shutdown discharges the output through an internal switch. Fast transient response, with an extended on-time feature reduces ou ...
Facility Rating Methodology
... The rating methodology in this document holds to the principle that the “Facility Rating shall equal the most limiting applicable Equipment Rating of the individual equipment that comprises that Facility”. For the purposes of this Rating Methodology, and in accordance with PP7, the equipment rating ...
... The rating methodology in this document holds to the principle that the “Facility Rating shall equal the most limiting applicable Equipment Rating of the individual equipment that comprises that Facility”. For the purposes of this Rating Methodology, and in accordance with PP7, the equipment rating ...
Symmetrical Components 1 - WSU Conference Management
... an actual impedance (in ohms) at 241.5kV and then converting the actual impedance to a per-unit impedance on the new base. In the problem 3 at the end of this document, the transformer nameplate data is for a ratio of 525/241.5kV or 2.174, whereas BPA’s ASPEN model uses nominal voltages of 525kV an ...
... an actual impedance (in ohms) at 241.5kV and then converting the actual impedance to a per-unit impedance on the new base. In the problem 3 at the end of this document, the transformer nameplate data is for a ratio of 525/241.5kV or 2.174, whereas BPA’s ASPEN model uses nominal voltages of 525kV an ...
Online Full Text
... A metal oxide varistor consists of a bulk semiconductor material (typically sintered granular zinc oxide) that can conduct large currents (effectively short-circuits) when presented with a voltage above its rated voltage. MOVs typically limit voltages to about 3 to 4 times the normal circuit voltage ...
... A metal oxide varistor consists of a bulk semiconductor material (typically sintered granular zinc oxide) that can conduct large currents (effectively short-circuits) when presented with a voltage above its rated voltage. MOVs typically limit voltages to about 3 to 4 times the normal circuit voltage ...
Gas-insulated switchgear type series 8DN8
... system. Depending on their respective functions, the components are housed either individually and/or combined in pressure-resistant, gas-tight enclosures. With a remarkably small number of active and passive modules, all customary bus schemes are possible. Adapter solutions ensure compatibility wit ...
... system. Depending on their respective functions, the components are housed either individually and/or combined in pressure-resistant, gas-tight enclosures. With a remarkably small number of active and passive modules, all customary bus schemes are possible. Adapter solutions ensure compatibility wit ...
Final Report - Senior Design
... Using ultraviolet (UV) light to cure paint is a new process in the field of auto body repair. Current systems used in small to medium-sized auto body repair facilities are limited in curing area due to the cost of components. H&S Autoshot, Inc., located in Centerville, Iowa, currently has a systems ...
... Using ultraviolet (UV) light to cure paint is a new process in the field of auto body repair. Current systems used in small to medium-sized auto body repair facilities are limited in curing area due to the cost of components. H&S Autoshot, Inc., located in Centerville, Iowa, currently has a systems ...
XBO R 300 W/60 C
... Comments It is required that temperatures are less than 250°C at point A and 350°C at point B, respectively. The optimum distribution and speed of airflow will depend on the design of the fixture in which a lamp is operated. Factors such as shape and volume of the fixture and position of the lamp re ...
... Comments It is required that temperatures are less than 250°C at point A and 350°C at point B, respectively. The optimum distribution and speed of airflow will depend on the design of the fixture in which a lamp is operated. Factors such as shape and volume of the fixture and position of the lamp re ...
Loading Considerations When Paralleling Transformers
... difficult for power engineers in industrial and commercial facilities to understand circulating currents and load sharing. However, as systems change over time, and transformers are replaced or added, users need to know the impact of paralleling transformers using different parameters. Electrical sy ...
... difficult for power engineers in industrial and commercial facilities to understand circulating currents and load sharing. However, as systems change over time, and transformers are replaced or added, users need to know the impact of paralleling transformers using different parameters. Electrical sy ...
HV9921/HV9922/HV9923 3-Pin Switch-Mode LED Lamp Driver ICs Features Description
... one-shot circuit is activated that determines the duration of the off-state (10.5μs typical). As soon as this time is over, the flip-flop sets again. The new switching cycle begins. A “blanking” delay of 300ns is provided that prevents false triggering of the current sense comparator due to the lead ...
... one-shot circuit is activated that determines the duration of the off-state (10.5μs typical). As soon as this time is over, the flip-flop sets again. The new switching cycle begins. A “blanking” delay of 300ns is provided that prevents false triggering of the current sense comparator due to the lead ...
MAX5092/MAX5093 4V to 72V Input LDOs with Boost Preregulator General Description Features
... to 65µA (typ). This makes the devices suitable for always-on power supplies. The buck-boost operation achieved by this combination of LDO and boost preregulator offers the advantage of using a single off-the-shelf inductor in place of the multiple-winding custom magnetics needed in typical single-en ...
... to 65µA (typ). This makes the devices suitable for always-on power supplies. The buck-boost operation achieved by this combination of LDO and boost preregulator offers the advantage of using a single off-the-shelf inductor in place of the multiple-winding custom magnetics needed in typical single-en ...
DC-DC Converter
... From what explained above, it is clear that a DC conversion by a voltage divider presents some drawbacks: A DC voltage higher than the input voltage cannot be obtained; The output voltage depends on the load, in general; The efficiency is very poor. ...
... From what explained above, it is clear that a DC conversion by a voltage divider presents some drawbacks: A DC voltage higher than the input voltage cannot be obtained; The output voltage depends on the load, in general; The efficiency is very poor. ...
Maxim Design Support Technical Documents Application Notes
... Proper component selection and PCB layout make a significant difference in the parasitic losses that occur. The operation of the system can also be managed by two different ways to improve efficiency. The first method is to reduce the inductor current, thus reducing the resistive losses of the induc ...
... Proper component selection and PCB layout make a significant difference in the parasitic losses that occur. The operation of the system can also be managed by two different ways to improve efficiency. The first method is to reduce the inductor current, thus reducing the resistive losses of the induc ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.