A SPICE MODEL FOR IGBTs
... available in IsSpice4 replaces the inductor and two other switching devices normally used for this test. Note the two-input voltage controlled current source that is added to multiply the IGBT voltage and current to compute power (measured across the one-ohm resistor). This power (current) is then i ...
... available in IsSpice4 replaces the inductor and two other switching devices normally used for this test. Note the two-input voltage controlled current source that is added to multiply the IGBT voltage and current to compute power (measured across the one-ohm resistor). This power (current) is then i ...
style guidelines to assist authors preparing papers using ms word
... (PWM) inverter. The content of this paper is intended to be descriptive in nature so as to provide an insight into this new technology. Introduction The theory and design of AC variable speed drives using a matrix converter has been the subject of discussion and research for over thirty years. From ...
... (PWM) inverter. The content of this paper is intended to be descriptive in nature so as to provide an insight into this new technology. Introduction The theory and design of AC variable speed drives using a matrix converter has been the subject of discussion and research for over thirty years. From ...
Alberta Reliability Standard Generator Operation for Maintaining Network Voltages VAR-002-AB-1.1b
... R2 The operator of an aggregated generating facility, subject to requirement R3 and the ISO’s consent to operate otherwise, must only operate such aggregated generating facility with the voltage regulating system in service, in voltage control mode and controlling voltage. R3 Each operator of a gene ...
... R2 The operator of an aggregated generating facility, subject to requirement R3 and the ISO’s consent to operate otherwise, must only operate such aggregated generating facility with the voltage regulating system in service, in voltage control mode and controlling voltage. R3 Each operator of a gene ...
single phasing, phase reversal, overvoltage, under
... Phase reversal problem occurs in motor when the supply phase is reversed due to wrong connection (except than RYB) due to phase reversal motor starts running in anticlockwise (opposite direction from normal) would cause operation and safety problem. Most of three phases motor run opposite phases. Th ...
... Phase reversal problem occurs in motor when the supply phase is reversed due to wrong connection (except than RYB) due to phase reversal motor starts running in anticlockwise (opposite direction from normal) would cause operation and safety problem. Most of three phases motor run opposite phases. Th ...
Fuse Facts and Fuse Selection Guide
... DERIVATION OF NOMINAL MELTING I2t: Laboratory tests are conducted on each fuse design to determine the amount of energy required to melt the fusing element. This energy is described as nominal melting I2t and is expressed as “Ampere Squared Seconds” (A2 Sec.). A pulse of current is applied to the fu ...
... DERIVATION OF NOMINAL MELTING I2t: Laboratory tests are conducted on each fuse design to determine the amount of energy required to melt the fusing element. This energy is described as nominal melting I2t and is expressed as “Ampere Squared Seconds” (A2 Sec.). A pulse of current is applied to the fu ...
RI-R38
... The auxiliary power supply could be the same of the network to control. Insulation control Terminals 5-11 The two terminals must be connected between the line under control and the earth of measure reference. The terminal 5 must be connected to the neutral conductor of the single-phase or the three- ...
... The auxiliary power supply could be the same of the network to control. Insulation control Terminals 5-11 The two terminals must be connected between the line under control and the earth of measure reference. The terminal 5 must be connected to the neutral conductor of the single-phase or the three- ...
VISHAY K3021 datasheet
... 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. ...
... 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. ...
GUIDE TO CONSTANT-VOLTAGE SYSTEMS
... Other high-voltage systems might run at other voltages. Although rare, the 200V system has been used for cable length exceeding one mile. ADVANTAGES OF 70V OPERATION As stated before, a 70V line reduces power loss due to cable heating. That's because the speaker cable carries the audio signal as a ...
... Other high-voltage systems might run at other voltages. Although rare, the 200V system has been used for cable length exceeding one mile. ADVANTAGES OF 70V OPERATION As stated before, a 70V line reduces power loss due to cable heating. That's because the speaker cable carries the audio signal as a ...
Introduction to Power MOSFETs and their Applications
... diodes except for very low frequency applications. e.g., motor control circuit shown in Figure 5. However in high frequency applications, the parasitic diode must be paralleled externally by an ultra-fast rectifier to ensure that the parasitic diode does not turn on. Allowing it to turn will substan ...
... diodes except for very low frequency applications. e.g., motor control circuit shown in Figure 5. However in high frequency applications, the parasitic diode must be paralleled externally by an ultra-fast rectifier to ensure that the parasitic diode does not turn on. Allowing it to turn will substan ...
Power Quality Standards for Electric Service
... 1. Total motor load (to include size(s) of largest motor(s), starting current(s), NEMA letter or code) and rated voltage. 2. General characteristics of equipment to be driven by motors. 3. Date new electric service or alterations to existing service are needed. 4. Any highly fluctuating loads such a ...
... 1. Total motor load (to include size(s) of largest motor(s), starting current(s), NEMA letter or code) and rated voltage. 2. General characteristics of equipment to be driven by motors. 3. Date new electric service or alterations to existing service are needed. 4. Any highly fluctuating loads such a ...
Ground Fault Interrupter
... pathway. The neutral return would then have 5 mA less current than the "hot" wire, but that might be out of a 20A load. So the circuit would have to detect a 0.025% deviation from 20A return current. Fortunately, comparator circuits such as an op-amp comparator are quite capable of detecting such di ...
... pathway. The neutral return would then have 5 mA less current than the "hot" wire, but that might be out of a 20A load. So the circuit would have to detect a 0.025% deviation from 20A return current. Fortunately, comparator circuits such as an op-amp comparator are quite capable of detecting such di ...
IOM MICRONEX (V2.2)
... seconds after starting, this effect is random and very variable. With the availability of MCB's with a wide range of characteristics, the individual engineer can make a better judgement of what is required. Use MCB's suitable for inrush currents to reduce ratings. The inrush current can be calculate ...
... seconds after starting, this effect is random and very variable. With the availability of MCB's with a wide range of characteristics, the individual engineer can make a better judgement of what is required. Use MCB's suitable for inrush currents to reduce ratings. The inrush current can be calculate ...
READ THIS FIRST! - Millennia Media
... 4. The shipping box of the HV-3C system will include (1) Owner's Manual, (2) HV-3C, (3) a UL approved power cord, (4) Owner's Registration Card. Fill out the Owner's Registration Card and return to Millennia Media at your earliest ability. The material contained in this manual consists of informatio ...
... 4. The shipping box of the HV-3C system will include (1) Owner's Manual, (2) HV-3C, (3) a UL approved power cord, (4) Owner's Registration Card. Fill out the Owner's Registration Card and return to Millennia Media at your earliest ability. The material contained in this manual consists of informatio ...
APR34330 NEWPRODUCT Description Features Pin Assignments
... SECONDARY SIDE SYNCHRONOUS RECTIFICATION SWITCHER ...
... SECONDARY SIDE SYNCHRONOUS RECTIFICATION SWITCHER ...
Metadyne
A metadyne is a direct current electrical machine with two pairs of brushes. It can be used as an amplifier or rotary transformer. It is similar to a third brush dynamo but has additional regulator or ""variator"" windings. It is also similar to an amplidyne except that the latter has a compensating winding which fully counteracts the effect of the flux produced by the load current. The technical description is ""a cross-field direct current machine designed to utilize armature reaction"". A metadyne can convert a constant-voltage input into a constant-current, variable-voltage output.