Application of unified power flow controller in interconnected power
... Applying modern PWM control technique[10] to the two voltage source converters, the relations between the inverter dc- and ac-side voltages can be expressed by: ...
... Applying modern PWM control technique[10] to the two voltage source converters, the relations between the inverter dc- and ac-side voltages can be expressed by: ...
Internal Heating of an IGBT Module in a System Michel Mabano
... the constant rise. As to why they are sought after, one cannot overlook the fact that power electronic devices convert electrical of one form to another with higher efficiency, whether it is DC power to AC power or vice-versa. What is even more remarkable is their capability to handle larger power w ...
... the constant rise. As to why they are sought after, one cannot overlook the fact that power electronic devices convert electrical of one form to another with higher efficiency, whether it is DC power to AC power or vice-versa. What is even more remarkable is their capability to handle larger power w ...
Liebert APM UPS 15-45kVA and 15-90kVA Guide
... provide 150% of full load for 60 seconds, 125% of full load for 10 minutes and 110% of full load for 60 minutes. A status indicator and audible alarm shall indicate overload operation. The UPS shall transfer the load to bypass when overload capacity is exceeded. 2.2.2.3 Fault Clearing and Current Li ...
... provide 150% of full load for 60 seconds, 125% of full load for 10 minutes and 110% of full load for 60 minutes. A status indicator and audible alarm shall indicate overload operation. The UPS shall transfer the load to bypass when overload capacity is exceeded. 2.2.2.3 Fault Clearing and Current Li ...
An Excessive Current Subtraction Technique to Improve
... input of charge amplifier. Since polarity between the current from Tx input voltage signal and the current from subtraction circuit is opposite, the mixed current is countervailed. By using this subtraction circuit, excessive current caused by parallel driving method is eliminated. Futhermore, there ...
... input of charge amplifier. Since polarity between the current from Tx input voltage signal and the current from subtraction circuit is opposite, the mixed current is countervailed. By using this subtraction circuit, excessive current caused by parallel driving method is eliminated. Futhermore, there ...
AN3027 Application note How to design a transition-mode PFC pre-regulator
... The front-end stage of conventional offline converters, typically consisting of a full-wave rectifier bridge with a capacitor filter, has an unregulated DC bus from the AC mains. The filter capacitor must be large enough to have a relatively low ripple superimposed on the DC level. This means that t ...
... The front-end stage of conventional offline converters, typically consisting of a full-wave rectifier bridge with a capacitor filter, has an unregulated DC bus from the AC mains. The filter capacitor must be large enough to have a relatively low ripple superimposed on the DC level. This means that t ...
MR4000Series
... 3.4 Standby mode control (patent pending) The MR4000 Series is capable of switching between two methods of output voltage control, normal operation mode and standby mode, in a single power supply. This IC uses the burst method for standby mode. Intermittent operation is performed under light loads t ...
... 3.4 Standby mode control (patent pending) The MR4000 Series is capable of switching between two methods of output voltage control, normal operation mode and standby mode, in a single power supply. This IC uses the burst method for standby mode. Intermittent operation is performed under light loads t ...
Basic Components and Electric Circuits
... the specified voltage vs across its terminals. The current will be determined by other circuit elements. ...
... the specified voltage vs across its terminals. The current will be determined by other circuit elements. ...
LED driver for single flash
... Medium Flash mode selection: pushing the Medium Flash button, we will have 150 mA current flowing through the WLed, safety shutdown is active and after maximum 0.5 sec. the WLed will be turned off. Is possible to reach up to 500 mA of medium Flash current calculating the Rmflash resistor using this ...
... Medium Flash mode selection: pushing the Medium Flash button, we will have 150 mA current flowing through the WLed, safety shutdown is active and after maximum 0.5 sec. the WLed will be turned off. Is possible to reach up to 500 mA of medium Flash current calculating the Rmflash resistor using this ...
NCP1250 - ON Semiconductor
... architecture where the switch−off event is dictated by the peak current setpoint. This component represents the ideal candidate where low part−count and cost effectiveness are the key parameters, particularly in low−cost ac−dc adapters, open−frame power supplies etc. Capitalizing on the NCP120X seri ...
... architecture where the switch−off event is dictated by the peak current setpoint. This component represents the ideal candidate where low part−count and cost effectiveness are the key parameters, particularly in low−cost ac−dc adapters, open−frame power supplies etc. Capitalizing on the NCP120X seri ...
Ohms Law Worksheet Basic Circuits
... Lamps in Parallel From the previous page you know that resistance is temperature dependent. The parallel circuit should be similar to the one you built on page 3 and is brighter than the lamps in series. The brighter the bulb the higher the resistance and I have found that scaling by 1.4 is a goo ...
... Lamps in Parallel From the previous page you know that resistance is temperature dependent. The parallel circuit should be similar to the one you built on page 3 and is brighter than the lamps in series. The brighter the bulb the higher the resistance and I have found that scaling by 1.4 is a goo ...
Low Frequency Sounder/Strobes
... DC or FWR (full wave rectified) systems. Sounder/Strobe versions are only to be used with 24 volt, DC or FWR systems. These products are electrically backward compatible with the previous generation of SpectrAlert notification appliances. The 2-wire products fit systems where a single NAC controls b ...
... DC or FWR (full wave rectified) systems. Sounder/Strobe versions are only to be used with 24 volt, DC or FWR systems. These products are electrically backward compatible with the previous generation of SpectrAlert notification appliances. The 2-wire products fit systems where a single NAC controls b ...
Features
... The MG2RTP series is a 0.5 micron, array based, CMOS product family. Several arrays up to 270K gates cover most system integration needs. The MG2RTP is manufactured using a 0.5 micron drawn, 3 metal layers CMOS process, called SCMOS 3/2 RTP. The base cell architecture of the MG2RTP series provides h ...
... The MG2RTP series is a 0.5 micron, array based, CMOS product family. Several arrays up to 270K gates cover most system integration needs. The MG2RTP is manufactured using a 0.5 micron drawn, 3 metal layers CMOS process, called SCMOS 3/2 RTP. The base cell architecture of the MG2RTP series provides h ...
MAX13485E/MAX13486E Half-Duplex RS-485/RS-422 Transceivers in µDFN General Description Features
... inputs are open or shorted. The receiver outputs a logichigh if all transmitters on a terminated bus are disabled (high impedance). The MAX13485E/MAX13486E include a hot-swap capability to eliminate false transitions on the bus during power-up or live-insertion. The MAX13485E features reduced slew-r ...
... inputs are open or shorted. The receiver outputs a logichigh if all transmitters on a terminated bus are disabled (high impedance). The MAX13485E/MAX13486E include a hot-swap capability to eliminate false transitions on the bus during power-up or live-insertion. The MAX13485E features reduced slew-r ...
Vertical scaling of 0.25-/spl mu/ emitter InP/InGaAs single
... primarily due to a larger emitter undercut and a higher specific ...
... primarily due to a larger emitter undercut and a higher specific ...
EE110 Lab2 Ohm`s Law and Resistor Combinations
... V=RI Graphically this linear relationship (similar to the familiar y = m x) is represented by a line when the current through the resistor is plotted against the voltage across it. This graph is termed I-V characteristic of the device. A linear I-V graph indicates that the resistance of the device r ...
... V=RI Graphically this linear relationship (similar to the familiar y = m x) is represented by a line when the current through the resistor is plotted against the voltage across it. This graph is termed I-V characteristic of the device. A linear I-V graph indicates that the resistance of the device r ...
Unit 2-Electricity and Energy
... In the circuit below the ammeter reads 0.8A, the current through the lamp is 0.3 A and the voltmeter reads 6V. ...
... In the circuit below the ammeter reads 0.8A, the current through the lamp is 0.3 A and the voltmeter reads 6V. ...
VRDC-Hz - Atkinson Electronics Inc
... The VRDC-Hz is a Adjustable Voltage Relay for AC frequency applications. The VRDC-Hz can be used in applications where a varying frequency is used to switch an adjustable relay such as in generator control or a frequency Hydro Power Plant load disconnect. The “cut-in” frequency, “cut-out” frequency, ...
... The VRDC-Hz is a Adjustable Voltage Relay for AC frequency applications. The VRDC-Hz can be used in applications where a varying frequency is used to switch an adjustable relay such as in generator control or a frequency Hydro Power Plant load disconnect. The “cut-in” frequency, “cut-out” frequency, ...
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)