Multilevel Inverters for Large Automotive Electric
... with adjustable speed drives because the power semiconductor switches are now able to switch fast enough such that the voltage change rate (dV/dt) is high enough to induce the damaging circulating currents and corona discharge between the winding layers. Present power semiconductors can be turned on ...
... with adjustable speed drives because the power semiconductor switches are now able to switch fast enough such that the voltage change rate (dV/dt) is high enough to induce the damaging circulating currents and corona discharge between the winding layers. Present power semiconductors can be turned on ...
417_1.PDF
... and is chopped into mini-pulses of 645ns duration with a 300ns gap, providing a macro-pulse of 1060 mini-pulses repeating at a 60Hz rate. Ring beam current will vary from about 15ma peak during studies, to about 50Amps peak (design to 100 amps). A digital approach to droop compensation has been impl ...
... and is chopped into mini-pulses of 645ns duration with a 300ns gap, providing a macro-pulse of 1060 mini-pulses repeating at a 60Hz rate. Ring beam current will vary from about 15ma peak during studies, to about 50Amps peak (design to 100 amps). A digital approach to droop compensation has been impl ...
UT54ACS86 - Aeroflex Microelectronic Solutions
... 1. Functional tests are conducted in accordance with MIL-STD-883 with the following input test conditions: VIH = VIH(min) + 20%, - 0%; VIL = VIL(max) + 0%, 50%, as specified herein, for TTL, CMOS, or Schmitt compatible inputs. Devices may be tested using any input voltage within the above specified ...
... 1. Functional tests are conducted in accordance with MIL-STD-883 with the following input test conditions: VIH = VIH(min) + 20%, - 0%; VIL = VIL(max) + 0%, 50%, as specified herein, for TTL, CMOS, or Schmitt compatible inputs. Devices may be tested using any input voltage within the above specified ...
Low Drop-Out (LDO) Linear Regulators: Design Considerations and
... • NMOS pass FET is easier to compensate at low loads and dropout, due to the higher output impedance of PMOS. • NMOS pass FET are smaller due to weaker drive of PMOS. • NMOS pass FET LDO requires the VDD rail to be higher than Vin, while a PMOS does not. To do this, a charge pump is usually requi ...
... • NMOS pass FET is easier to compensate at low loads and dropout, due to the higher output impedance of PMOS. • NMOS pass FET are smaller due to weaker drive of PMOS. • NMOS pass FET LDO requires the VDD rail to be higher than Vin, while a PMOS does not. To do this, a charge pump is usually requi ...
Harmonic Distortion Reduction Technique for Uninterruptible Power
... constant DC input voltage, this can cause the inverter output voltage to contain large amounts of low order harmonics and significantly affect the inverter performance. Hence, a large PWM voltage area of each pulse is required to keep the distortion of output voltage low. This issue is completely ig ...
... constant DC input voltage, this can cause the inverter output voltage to contain large amounts of low order harmonics and significantly affect the inverter performance. Hence, a large PWM voltage area of each pulse is required to keep the distortion of output voltage low. This issue is completely ig ...
Methodology for relative location of voltage sag source using
... available current measurements or algorithms that depend only on the voltage are required. Most relevant descriptors to determine the relative location of the voltage sag source are identified and listed in some works. Also, the appropriate thresholds for discriminating the relative location of the ...
... available current measurements or algorithms that depend only on the voltage are required. Most relevant descriptors to determine the relative location of the voltage sag source are identified and listed in some works. Also, the appropriate thresholds for discriminating the relative location of the ...
IC Logic Families
... Unused inputs: three different ways to handle. Tie-together inputs: common input generally represent a load that is the sum of the load current rating of each individual input. Exception: for AND and NAND gates, the LOW state input load will be the same as a single input no matter how many inputs ar ...
... Unused inputs: three different ways to handle. Tie-together inputs: common input generally represent a load that is the sum of the load current rating of each individual input. Exception: for AND and NAND gates, the LOW state input load will be the same as a single input no matter how many inputs ar ...
TPS51217 数据资料 dataSheet 下载
... system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong ga ...
... system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong ga ...
High-efficiency, high step-up DC-DC converters
... Instead of nonisolation converters or cascade dc–dc converters, those with coupled inductors, such as flyback or isolation Sepic converters, could be used [1], [9], [10]. Converters with coupled inductors can easily achieve high step-up voltage gain, utilizing low - switches at low power levels. How ...
... Instead of nonisolation converters or cascade dc–dc converters, those with coupled inductors, such as flyback or isolation Sepic converters, could be used [1], [9], [10]. Converters with coupled inductors can easily achieve high step-up voltage gain, utilizing low - switches at low power levels. How ...
SL Series: 1.5 kW to 6 kW - Magna
... current when connected together. Master/slave series operation allows two or more power supplies to equally share output voltage when connected together. In either operation mode, the master unit will command the slave units to the proper voltage and current. Each unit will display its own individua ...
... current when connected together. Master/slave series operation allows two or more power supplies to equally share output voltage when connected together. In either operation mode, the master unit will command the slave units to the proper voltage and current. Each unit will display its own individua ...
Experiment 4
... windings (only a magnetic connection), the source and load can be electrically isolated from each other by means of a transformer. When a transformer is energized and loaded, AC current flowing in its windings creates an alternating magnetic field in its iron core. A small portion of the current, ca ...
... windings (only a magnetic connection), the source and load can be electrically isolated from each other by means of a transformer. When a transformer is energized and loaded, AC current flowing in its windings creates an alternating magnetic field in its iron core. A small portion of the current, ca ...
... It can be observed that the most critical case for the fundamentals is when they have a phase of ±90º. In such conditions, and for a modulation index of m=1, the maximum amplitude acceptable for the fourth-order harmonic is only 3.4 % of the fundamental. It is important to remark that modulation ind ...
Learning Outcome 14: Identify and describe LRC circuits. Analyze and
... This course will serve as a comprehensive study in alternating current ( AC circuits ). Student will be introduced to the principles, applications, and measurements of alternating current. Generally, students will begin their learning with AC measurements, then the use of AC measuring tools, and pro ...
... This course will serve as a comprehensive study in alternating current ( AC circuits ). Student will be introduced to the principles, applications, and measurements of alternating current. Generally, students will begin their learning with AC measurements, then the use of AC measuring tools, and pro ...
Phase Control Using Thyristors
... For example, assume that we want to trigger an S2010L SCR with a 32 V trigger DIAC. A 0.1 µF capacitor will supply the necessary SCR gate current with the trigger DIAC. Assume a 50 V dc power supply, 30º minimum conduction angle, and 150º maximum conduction angle with a 60 Hz input power source. At ...
... For example, assume that we want to trigger an S2010L SCR with a 32 V trigger DIAC. A 0.1 µF capacitor will supply the necessary SCR gate current with the trigger DIAC. Assume a 50 V dc power supply, 30º minimum conduction angle, and 150º maximum conduction angle with a 60 Hz input power source. At ...
ppt
... Lab Reports • Maximum score for each lab is 100. • Lab reports are due one week after. • Late reports will be accepted up to one week after the due date, but will be penalized by a 50% grade reduction. • The report must be typed; the graphs are to be generated using OriginLab© (highly preferred). D ...
... Lab Reports • Maximum score for each lab is 100. • Lab reports are due one week after. • Late reports will be accepted up to one week after the due date, but will be penalized by a 50% grade reduction. • The report must be typed; the graphs are to be generated using OriginLab© (highly preferred). D ...
Contact resistance and TLM measurements
... Using the geometry shown, finding contact resistivity should be a straight-forward exercise in measuring resistors of several lengths and then extracting the parameters, assuming that we know the area of the contacts. However, we don’t use the contact geometry that was shown. Instead, we have conta ...
... Using the geometry shown, finding contact resistivity should be a straight-forward exercise in measuring resistors of several lengths and then extracting the parameters, assuming that we know the area of the contacts. However, we don’t use the contact geometry that was shown. Instead, we have conta ...
4 Electrical Ratings and Characteristics of Power Semiconductor
... The absolute voltage limit is characterised by a sharp increase in leakage current when the device has at least one junction reverse-biased. The most commonly experienced voltage-limiting mechanism is that of avalanche multiplication, as considered in chapters 2.2.2 and 3.1.2. Since leakage current ...
... The absolute voltage limit is characterised by a sharp increase in leakage current when the device has at least one junction reverse-biased. The most commonly experienced voltage-limiting mechanism is that of avalanche multiplication, as considered in chapters 2.2.2 and 3.1.2. Since leakage current ...
MAX6613MXK+T
... to, the object whose temperature it is intended to measure. Because there is a good thermal path between the package’s metal lead and the IC die, the MAX6613 can accurately measure the temperature of the circuit board to which it is soldered. If the sensor is intended to measure the temperature of a ...
... to, the object whose temperature it is intended to measure. Because there is a good thermal path between the package’s metal lead and the IC die, the MAX6613 can accurately measure the temperature of the circuit board to which it is soldered. If the sensor is intended to measure the temperature of a ...