Analysis of a Novel Soft Switching Bidirectional DC-DC
... condition in boost mode and buck mode. Since this switching loss is one of serious dissipation, it is able to be caused to drop the efficiency of system. General method to prevent efficiency droop is that auxiliary switches without auxiliary circuit are employed to help the ZVS and ZCS operation [16 ...
... condition in boost mode and buck mode. Since this switching loss is one of serious dissipation, it is able to be caused to drop the efficiency of system. General method to prevent efficiency droop is that auxiliary switches without auxiliary circuit are employed to help the ZVS and ZCS operation [16 ...
2005 Code Changes
... these shorts require all three legs to be electrically connected. Though bolted faults do occur, far more common is the mishap of a slipped screwdriver, dropped wrench, or worn insulation that shorts one phase to ground, creating a single-pole short-circuit. These phase-to-ground faults affect the p ...
... these shorts require all three legs to be electrically connected. Though bolted faults do occur, far more common is the mishap of a slipped screwdriver, dropped wrench, or worn insulation that shorts one phase to ground, creating a single-pole short-circuit. These phase-to-ground faults affect the p ...
Phase-shifting Transformer Modeling in PSS®E
... For short circuit calculations the phase-shifting transformer model for the negative sequence network will employ the same leakage impedance used in the load flow calculations, but the sign of the phase shift angle will be reversed. Hence, if the phase shift angle is +Φ in the positive sequence netw ...
... For short circuit calculations the phase-shifting transformer model for the negative sequence network will employ the same leakage impedance used in the load flow calculations, but the sign of the phase shift angle will be reversed. Hence, if the phase shift angle is +Φ in the positive sequence netw ...
MAX15023 Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller General Description
... MAX15023 includes two independent power-good outputs and two independent enable inputs with precise turn-on/turn-off thresholds, which can be used for supply monitoring and for power sequencing. Additional protection features include cycle-by-cycle, low-side, sink peak current limit, and thermal shu ...
... MAX15023 includes two independent power-good outputs and two independent enable inputs with precise turn-on/turn-off thresholds, which can be used for supply monitoring and for power sequencing. Additional protection features include cycle-by-cycle, low-side, sink peak current limit, and thermal shu ...
Insulated Gate Bipolar Transistor
... much higher current density compared to a power MOSFET. If the shorting resistance between the base and emitter of the npn transistor is small, the n+ emitter p-base junction does not become forward biased and therefore the parasitic npn transistor is not active and can be deleted from the equivalen ...
... much higher current density compared to a power MOSFET. If the shorting resistance between the base and emitter of the npn transistor is small, the n+ emitter p-base junction does not become forward biased and therefore the parasitic npn transistor is not active and can be deleted from the equivalen ...
BD8963EFJ
... 5. Considerations on Permissible Dissipation and Heat Generation Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including ...
... 5. Considerations on Permissible Dissipation and Heat Generation Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including ...
LTC3892/ - 60V Low IQ, Dual, 2-Phase Synchronous Step
... Note 4: The LTC3892/LTC3892-1/LTC3892-2 is tested in a feedback loop that servos VITH1,2 to a specified voltage and measures the resultant VFB1,2. The specification at 85°C is not tested in production and is assured by design, characterization and correlation to production testing at other temperatu ...
... Note 4: The LTC3892/LTC3892-1/LTC3892-2 is tested in a feedback loop that servos VITH1,2 to a specified voltage and measures the resultant VFB1,2. The specification at 85°C is not tested in production and is assured by design, characterization and correlation to production testing at other temperatu ...
Atomic absorption spectroscopy
... • This amount of energy is specific to a particular electron transition in a particular element. As the quantity of energy put into the flame is known, and the quantity remaining at the other side (at the detector) can be measured, it is possible to calculate how many of these transitions took plac ...
... • This amount of energy is specific to a particular electron transition in a particular element. As the quantity of energy put into the flame is known, and the quantity remaining at the other side (at the detector) can be measured, it is possible to calculate how many of these transitions took plac ...
ODEN AT - Progusa
... Primary Current Injection Test System This power ful test system is designed for primary injection testing of protective relay equipment and circuit breakers. It is also used to test the transformation ratio of current transformers and for other applications that require high variable currents. The ...
... Primary Current Injection Test System This power ful test system is designed for primary injection testing of protective relay equipment and circuit breakers. It is also used to test the transformation ratio of current transformers and for other applications that require high variable currents. The ...
FAN5069 PWM and LDO Controller Combo F AN5069 PWM and LD
... Shunt Regulator for 12V Operation Support for Ceramic Cap on PWM Output Programmable Current Limit for PWM Output Programmable Switching Frequency (200KHz to ...
... Shunt Regulator for 12V Operation Support for Ceramic Cap on PWM Output Programmable Current Limit for PWM Output Programmable Switching Frequency (200KHz to ...
Infineon Application Note Reverse Conduction IGBT for Induction
... additional anti-parallel diode can be avoided. On cell of the IGBT shown in Fig. 4 is based on two major principles, which are the fieldstop layer and the trench gate structure. This structure combination leads to a widely improved saturation voltage and very low turn-off energies. Compared to previ ...
... additional anti-parallel diode can be avoided. On cell of the IGBT shown in Fig. 4 is based on two major principles, which are the fieldstop layer and the trench gate structure. This structure combination leads to a widely improved saturation voltage and very low turn-off energies. Compared to previ ...
Evaluation of a Radial Flux Air-cored Permanent Magnet Machine
... Due to finite oil resources and its political and economical impact, a renewed interest in energy independence has compelled industry and government to pursue electric vehicle designs. The current worldwide research that is being conducted on drivetrain topologies for EVs, focus mainly on direct in-w ...
... Due to finite oil resources and its political and economical impact, a renewed interest in energy independence has compelled industry and government to pursue electric vehicle designs. The current worldwide research that is being conducted on drivetrain topologies for EVs, focus mainly on direct in-w ...
- Landis+Gyr
... bring in four signed Kwh and Kvarh values (which can be netted) along with voltages and currents. The Kompensator can calculated current if it is unmeasured, this feature would be used if power values are being netted or the losses are downstream other side of the power transformer or downstream of ...
... bring in four signed Kwh and Kvarh values (which can be netted) along with voltages and currents. The Kompensator can calculated current if it is unmeasured, this feature would be used if power values are being netted or the losses are downstream other side of the power transformer or downstream of ...
polyfuse® ptc selection guide
... When to apply a resettable PTC vs. a traditional fuse is always the choice of the designer or technician but in some cases, PTC’s offer a convenient form of circuit protection to improve the reliability of an application. There is an important area of applications where the use of resettable fuses ( ...
... When to apply a resettable PTC vs. a traditional fuse is always the choice of the designer or technician but in some cases, PTC’s offer a convenient form of circuit protection to improve the reliability of an application. There is an important area of applications where the use of resettable fuses ( ...
LT8630 - 100V, 0.6A Synchronous Micropower
... of 3V to 100V makes the LT8630 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom supplies. Variable frequency boundary mode switching maximizes efficiency across a wide range of input voltages. Low ripple Burst Mode opera ...
... of 3V to 100V makes the LT8630 suitable for regulating power from a wide variety of sources, including automotive and industrial systems and 36V to 72V telecom supplies. Variable frequency boundary mode switching maximizes efficiency across a wide range of input voltages. Low ripple Burst Mode opera ...
Chapter 4 Analog CMOS Subcircuits 4.1 MOS Switch
... is never zero and rOFF is never infinite. Moreover, these values are never constant with respect to terminal conditions. In general, switches can have some form of voltage offset which is modeled by VOS of Fig. 4.1-1. VOS represents the small voltage that may exist between terminals A and B when the ...
... is never zero and rOFF is never infinite. Moreover, these values are never constant with respect to terminal conditions. In general, switches can have some form of voltage offset which is modeled by VOS of Fig. 4.1-1. VOS represents the small voltage that may exist between terminals A and B when the ...
instruction manual 700151 en1501 series controls
... DIGITAL CURRENT CONTROL is possible via micro processor driven circuitry allowing precise firing on each half cycle of alternating current being delivered to the welding transformer. Accurate phase shift firing makes this control adjustable in 1 percent increments of available current. FUNCTION TIMI ...
... DIGITAL CURRENT CONTROL is possible via micro processor driven circuitry allowing precise firing on each half cycle of alternating current being delivered to the welding transformer. Accurate phase shift firing makes this control adjustable in 1 percent increments of available current. FUNCTION TIMI ...
TPS70175-Q1 数据资料 dataSheet 下载
... high performance power management solutions. These devices provide fast transient response and high accuracy with small output capacitors, while drawing low quiescent current. Programmable sequencing provides a power solution for DSPs without any external component requirements. This reduces the com ...
... high performance power management solutions. These devices provide fast transient response and high accuracy with small output capacitors, while drawing low quiescent current. Programmable sequencing provides a power solution for DSPs without any external component requirements. This reduces the com ...
High Power DC/DC Converter Topologies
... Difficult to regulate the output at no load condition Significant current may circulate through the resonant network, even at the no load condition Quasi-sinusoidal waveforms exhibit higher peak values than equivalent rectangular waveforms High output current ripple ...
... Difficult to regulate the output at no load condition Significant current may circulate through the resonant network, even at the no load condition Quasi-sinusoidal waveforms exhibit higher peak values than equivalent rectangular waveforms High output current ripple ...
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.