application note u-129 uc3907 load share ic
... the output impedance of the power supplies to obtain load sharing. This method exhibits very poor current sharing at low currents and improves at higher currents, but can still have large current imbalances between supplies. An example of this method is shown in Fig 1 where as the individual supply ...
... the output impedance of the power supplies to obtain load sharing. This method exhibits very poor current sharing at low currents and improves at higher currents, but can still have large current imbalances between supplies. An example of this method is shown in Fig 1 where as the individual supply ...
NGfL
... responsibility whatsoever for any injury, however caused, relating to or resulting from this document. By reading this, the reader accepts and agrees that neither WJEC or NGfL are providing training, intentionally or unintentionally for carrying out electrical works. www.ngfl-cymru.org.uk ...
... responsibility whatsoever for any injury, however caused, relating to or resulting from this document. By reading this, the reader accepts and agrees that neither WJEC or NGfL are providing training, intentionally or unintentionally for carrying out electrical works. www.ngfl-cymru.org.uk ...
Use of Motor Protection Circuit Breakers with Variable
... When MPCBs, due to a partially loaded motor, operate at currents lower than the min. current setting, they are usually not able to trip thermally when additional heating in the magnetic trip coil occurs. The breaker, however, still is permanently experiencing the load of the voltage pulses as descri ...
... When MPCBs, due to a partially loaded motor, operate at currents lower than the min. current setting, they are usually not able to trip thermally when additional heating in the magnetic trip coil occurs. The breaker, however, still is permanently experiencing the load of the voltage pulses as descri ...
US Echo II installion and user guide
... Heat meter with mains power supply must be connected according to installation instructions. The mains power supply must be protected against voltage failures. Protective systems (circuit breakers) must be used, in order to ensure secure disconnection of the unit from the mains in case of electric t ...
... Heat meter with mains power supply must be connected according to installation instructions. The mains power supply must be protected against voltage failures. Protective systems (circuit breakers) must be used, in order to ensure secure disconnection of the unit from the mains in case of electric t ...
AN SB-220 COMPENDIUM
... Do not leave clippings, drill debris or any other conductive material loose inside the amp. Take care that there is no possibility of short circuits developing between components or circuit boards to chassis or to each other. Ensure that the integrity of wiring insulation and coaxial cable dielectri ...
... Do not leave clippings, drill debris or any other conductive material loose inside the amp. Take care that there is no possibility of short circuits developing between components or circuit boards to chassis or to each other. Ensure that the integrity of wiring insulation and coaxial cable dielectri ...
integrated mos gate drivers
... If the electrical isolation is done before the final stage, the gate voltages (VG+, VG-) must be isolated from the other voltages which supply the logic and the interface blocks – Fig.6.1. Also, in the MGDs logic side may be needed more supply voltages. It is possible that some blocks which included ...
... If the electrical isolation is done before the final stage, the gate voltages (VG+, VG-) must be isolated from the other voltages which supply the logic and the interface blocks – Fig.6.1. Also, in the MGDs logic side may be needed more supply voltages. It is possible that some blocks which included ...
Electricity in HPC Centres
... Consumers with specific needs such as HPC centres that run large Petascale (or Exascale in the future) computing machines have high requirements regarding the power distribution network capacities and arrangement. It is caused by very high power consumption of connected devices knowing that some pro ...
... Consumers with specific needs such as HPC centres that run large Petascale (or Exascale in the future) computing machines have high requirements regarding the power distribution network capacities and arrangement. It is caused by very high power consumption of connected devices knowing that some pro ...
VCB 400 - Geberal information and power section
... The frequency inverters are integrated in a drive system consisting of a number of components. The electromagnetic compatibility (EMC) only has to be assessed for the overall system. This is why compliance with the EMC Guideline and EMC Law can only be achieved through the EMC-compatible design as s ...
... The frequency inverters are integrated in a drive system consisting of a number of components. The electromagnetic compatibility (EMC) only has to be assessed for the overall system. This is why compliance with the EMC Guideline and EMC Law can only be achieved through the EMC-compatible design as s ...
MAX8622 Fast-Charge-Time Xenon Flash Charger for Digital Still Cameras and Camera Phones
... small, the primary windings may not cover the width of the core and result in poor coupling to the secondary. This also increases the leakage inductance. Leakage inductance does not participate in the primary to secondary energy transfer. Since the leakage inductance does not find a path for the cur ...
... small, the primary windings may not cover the width of the core and result in poor coupling to the secondary. This also increases the leakage inductance. Leakage inductance does not participate in the primary to secondary energy transfer. Since the leakage inductance does not find a path for the cur ...
Transmission Line Fault Detection Using BFONN 1 Ashok kumar 2
... fault information. It can improve accuracy, especially with phasor measurement units-based location algorithm, which is based on transmission line current and voltage relationships. This algorithm does not depend on the fault type, impedance or load effects. Accurate transmission line parameters can ...
... fault information. It can improve accuracy, especially with phasor measurement units-based location algorithm, which is based on transmission line current and voltage relationships. This algorithm does not depend on the fault type, impedance or load effects. Accurate transmission line parameters can ...
What do resistors do?
... (IF ) which is due to leakage. As VF continues to increase, IF remains very low and almost constant but eventually a point is reached where IF increases rapidly and VF drops to a low value. – The VF value required to trigger this sudden change is referred to as the Forward Breakover Voltage (Vp). Wh ...
... (IF ) which is due to leakage. As VF continues to increase, IF remains very low and almost constant but eventually a point is reached where IF increases rapidly and VF drops to a low value. – The VF value required to trigger this sudden change is referred to as the Forward Breakover Voltage (Vp). Wh ...
Series 440 Installation and Operation Instructions
... Always start troubleshooting with the checklists below if faults occur after start up or during operation. This takes you directly (via various queries) to the cause of the problem and the appropriate remedial measures. Note: Due to its design, the device cannot be repaired. However, it is possible ...
... Always start troubleshooting with the checklists below if faults occur after start up or during operation. This takes you directly (via various queries) to the cause of the problem and the appropriate remedial measures. Note: Due to its design, the device cannot be repaired. However, it is possible ...
SCHOOL OF ENGINEERING
... a) Describe the operation of the circuit to such an input signal explaining what the input voltage waveform Vbi will be to the buffer and how the corresponding buffer output voltage Vbo will affect the current i into the integrator input resistance R. Sketch the buffer input and output waveforms to ...
... a) Describe the operation of the circuit to such an input signal explaining what the input voltage waveform Vbi will be to the buffer and how the corresponding buffer output voltage Vbo will affect the current i into the integrator input resistance R. Sketch the buffer input and output waveforms to ...
Matlab simulations for power factor correction of switching power 8
... PFC(PPFC) only use capacitance, diode, inductance and other passive elements. The circuit is simple, and the cost is low, but the power factor of passive PFC is not very high that can only reach 0.7~0.8; APFC need to use transistor and controlling IC, the cost of which is much higher than that of PP ...
... PFC(PPFC) only use capacitance, diode, inductance and other passive elements. The circuit is simple, and the cost is low, but the power factor of passive PFC is not very high that can only reach 0.7~0.8; APFC need to use transistor and controlling IC, the cost of which is much higher than that of PP ...
MAX2180AEVKIT.pdf
... the device can induce voltages in the PCB ground plane, known as “ground bounce.” To avoid unwanted spurious products in the signal path due to ground bounce, proper grounding techniques must be followed. To prevent ground bounce from large FM signals entering the AM signal path, the AM bypass capac ...
... the device can induce voltages in the PCB ground plane, known as “ground bounce.” To avoid unwanted spurious products in the signal path due to ground bounce, proper grounding techniques must be followed. To prevent ground bounce from large FM signals entering the AM signal path, the AM bypass capac ...
4. Electrical characteristics
... The connection supports are made of porcelain or epoxy resin. Connections are of bare copper bars. 4.10 Low voltage wiring Low voltage wiring is insulated with black PVC, 1000 V grade, with the following cross-sections: - 2,5 sq. mm for currents circuits, - 1,5 sq. mm for voltage circuits. Each extr ...
... The connection supports are made of porcelain or epoxy resin. Connections are of bare copper bars. 4.10 Low voltage wiring Low voltage wiring is insulated with black PVC, 1000 V grade, with the following cross-sections: - 2,5 sq. mm for currents circuits, - 1,5 sq. mm for voltage circuits. Each extr ...
Evaluates: MAX1534 MAX1534 Evaluation Kit General Description Features
... buck converter and the LDO regulators can be adjusted by adding feedback resistors R1 through R6. For instructions on adjusting the output voltage, see the Adjusting the Output Voltages section. The default configuration of the MAX1534 EV kit drives the input to the LDOs with the output of the buck ...
... buck converter and the LDO regulators can be adjusted by adding feedback resistors R1 through R6. For instructions on adjusting the output voltage, see the Adjusting the Output Voltages section. The default configuration of the MAX1534 EV kit drives the input to the LDOs with the output of the buck ...
BD6382EFV
... Users should be aware that BD6382EFV have been designed to expose their frames at the back of the package, and should be used with suitable heat dissipation treatment in this area to improve dissipation. As large a dissipation pattern should be taken as possible, not only on the front of the baseboa ...
... Users should be aware that BD6382EFV have been designed to expose their frames at the back of the package, and should be used with suitable heat dissipation treatment in this area to improve dissipation. As large a dissipation pattern should be taken as possible, not only on the front of the baseboa ...
NI Camera Link I/O Extension Board (PCIe) User Guide
... Do not operate the device in a manner not specified in the documentation. Misuse of the device may result in a hazard and may compromise the safety protection built into the device. If the device is damaged, turn it off and do not use it until service-trained personnel can check its safety. If neces ...
... Do not operate the device in a manner not specified in the documentation. Misuse of the device may result in a hazard and may compromise the safety protection built into the device. If the device is damaged, turn it off and do not use it until service-trained personnel can check its safety. If neces ...
Turkey Point Units 6 & 7 COL Application Part 2 — FSAR
... ranging from 69 kV to 500 kV. FPL maintains multiple direct interconnections with neighboring utilities. FPL also participates as a member of the Florida Reliability Coordinating Council and the North American Electric Reliability Corporation. The plant switchyard (Clear Sky substation) on the Turke ...
... ranging from 69 kV to 500 kV. FPL maintains multiple direct interconnections with neighboring utilities. FPL also participates as a member of the Florida Reliability Coordinating Council and the North American Electric Reliability Corporation. The plant switchyard (Clear Sky substation) on the Turke ...
www.BDTIC.com/ADI
... Bipolar references may be accommodated by offsetting VREF or Pin 17. The negative common-mode range of the reference amplifier is given by: VCM– = V– plus (IREF × 2 kΩ) plus 2 V. The positive common-mode range is V+ less 1.8 V. When a dc reference is used, a reference bypass capacitor is recommended ...
... Bipolar references may be accommodated by offsetting VREF or Pin 17. The negative common-mode range of the reference amplifier is given by: VCM– = V– plus (IREF × 2 kΩ) plus 2 V. The positive common-mode range is V+ less 1.8 V. When a dc reference is used, a reference bypass capacitor is recommended ...
Ground (electricity)
In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth.Electrical circuits may be connected to ground (earth) for several reasons. In mains powered equipment, exposed metal parts are connected to ground to prevent user contact with dangerous voltage if electrical insulation fails. Connections to ground limit the build-up of static electricity when handling flammable products or electrostatic-sensitive devices. In some telegraph and power transmission circuits, the earth itself can be used as one conductor of the circuit, saving the cost of installing a separate return conductor (see single-wire earth return).For measurement purposes, the Earth serves as a (reasonably) constant potential reference against which other potentials can be measured. An electrical ground system should have an appropriate current-carrying capability to serve as an adequate zero-voltage reference level. In electronic circuit theory, a ""ground"" is usually idealized as an infinite source or sink for charge, which can absorb an unlimited amount of current without changing its potential. Where a real ground connection has a significant resistance, the approximation of zero potential is no longer valid. Stray voltages or earth potential rise effects will occur, which may create noise in signals or if large enough will produce an electric shock hazard.The use of the term ground (or earth) is so common in electrical and electronics applications that circuits in portable electronic devices such as cell phones and media players as well as circuits in vehicles may be spoken of as having a ""ground"" connection without any actual connection to the Earth, despite ""common"" being a more appropriate term for such a connection. This is usually a large conductor attached to one side of the power supply (such as the ""ground plane"" on a printed circuit board) which serves as the common return path for current from many different components in the circuit.