BDTIC
... be able to provide the isolated output even if AC input voltage become zero for a short holdup time. The common specification for this holdup time is 20ms. If minimum input voltage for PWM stage is defined as 250VDC, then the bulk capacitance will be ...
... be able to provide the isolated output even if AC input voltage become zero for a short holdup time. The common specification for this holdup time is 20ms. If minimum input voltage for PWM stage is defined as 250VDC, then the bulk capacitance will be ...
A2 Capacitors - Animated Science
... A student was required to design an experiment to measure the acceleration of a heavy cylinder as it rolled down an inclined slope of constant gradient. He suggested an arrangement that would make use of a capacitor-resistor discharge circuit to measure the time taken for the cylinder to travel betw ...
... A student was required to design an experiment to measure the acceleration of a heavy cylinder as it rolled down an inclined slope of constant gradient. He suggested an arrangement that would make use of a capacitor-resistor discharge circuit to measure the time taken for the cylinder to travel betw ...
Constant-Frequency, Current-Mode Step-Up DC/DC Controller ADP1621
... external n-channel power MOSFET. Connect GATE to the gate of the MOSFET. Power Input. PIN powers the gate driver output. An internal 5.5 V shunt regulator is connected to this pin. Bypass PIN to PGND with a 0.1 μF or greater capacitor. Current-Sense Input. CS is the positive input of the current-sen ...
... external n-channel power MOSFET. Connect GATE to the gate of the MOSFET. Power Input. PIN powers the gate driver output. An internal 5.5 V shunt regulator is connected to this pin. Bypass PIN to PGND with a 0.1 μF or greater capacitor. Current-Sense Input. CS is the positive input of the current-sen ...
Module 4-6
... • Resistance: the opposition to the movement of electrons, measured in ohms (Ω) by an ohmmeter and represented by R in formulas. • Resistance is like friction and turns electrical energy into heat when current flows. • Conductors permit current flow (low resistance) and insulators block current flow ...
... • Resistance: the opposition to the movement of electrons, measured in ohms (Ω) by an ohmmeter and represented by R in formulas. • Resistance is like friction and turns electrical energy into heat when current flows. • Conductors permit current flow (low resistance) and insulators block current flow ...
Power System Operation and Control (EE
... shutdown and preventive maintenance. If only one generator is used and it is not operating at near full load, then it will be relatively inefficient. But with many machines it is possible to operate only a fraction of them. The ones that do operate near full load and therefore more efficiently. ...
... shutdown and preventive maintenance. If only one generator is used and it is not operating at near full load, then it will be relatively inefficient. But with many machines it is possible to operate only a fraction of them. The ones that do operate near full load and therefore more efficiently. ...
A Design Study of a Future 10 kW Converter Sebastian Fant
... A Design Study of a Future 10 kW Converter Författare Sebastian Fant Sammanfattning ...
... A Design Study of a Future 10 kW Converter Författare Sebastian Fant Sammanfattning ...
TPS40075 数据资料 dataSheet 下载
... The TPS40075 drives external N-channel MOSFETs using second generation Predictive Gate Drive to minimize conduction in the body diode of the low side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low side FET to turn on until the voltage commanded by the closed lo ...
... The TPS40075 drives external N-channel MOSFETs using second generation Predictive Gate Drive to minimize conduction in the body diode of the low side FET and maximize efficiency. Pre-biased outputs are supported by not allowing the low side FET to turn on until the voltage commanded by the closed lo ...
TPS61130 数据资料 dataSheet 下载
... The TPS6113x devices provide a complete power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or two- to four-cell Alkaline, NiCd, or NiMH batteries. The devices can generate two regulated output voltages. It provides a simple and efficient buck-boost solution for gen ...
... The TPS6113x devices provide a complete power supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or two- to four-cell Alkaline, NiCd, or NiMH batteries. The devices can generate two regulated output voltages. It provides a simple and efficient buck-boost solution for gen ...
datasheet - Texas Instruments
... It sets the switching frequency, which is constant for steady state operating conditions, and provides immediate response to dynamic load changes. To get accurate DC load regulation, a voltage feedback loop is used. The internally compensated regulation network achieves fast and stable operation wit ...
... It sets the switching frequency, which is constant for steady state operating conditions, and provides immediate response to dynamic load changes. To get accurate DC load regulation, a voltage feedback loop is used. The internally compensated regulation network achieves fast and stable operation wit ...
chapter 13
... exhibits a voltage drop of V = (2 amps)(12 Ω ) = 24 volts. If you will remember, a voltage difference is equal to the work per unit charge or, in this case, the energy per unit charge, dropped by the resistor. Again, mathematically, this means W/q = - ∆ V. Although it is possible to get confused wit ...
... exhibits a voltage drop of V = (2 amps)(12 Ω ) = 24 volts. If you will remember, a voltage difference is equal to the work per unit charge or, in this case, the energy per unit charge, dropped by the resistor. Again, mathematically, this means W/q = - ∆ V. Although it is possible to get confused wit ...
analysis of load test, transformation, turns ratio, efficiency and
... electrical machines and requires almost negligible amount of maintenance and supervision ...
... electrical machines and requires almost negligible amount of maintenance and supervision ...
Lesson Plan
... A. This section is designed to be covered with students having access to a multimeter. B. Multimeters will look different and may have different features and types of measurement. C. Each individual type of measurement is similar because all meters work the same way. D. This section is designed to g ...
... A. This section is designed to be covered with students having access to a multimeter. B. Multimeters will look different and may have different features and types of measurement. C. Each individual type of measurement is similar because all meters work the same way. D. This section is designed to g ...
Switching Regulator Fundamentals (Rev. A)
... increasing flow of current through it. Note that the polarity of the voltage on the primary is dot-negative (more negative at the dotted end), causing a voltage with the same polarity to appear at the transformer secondary (the magnitude of the secondary voltage is set by the transformer secondary-t ...
... increasing flow of current through it. Note that the polarity of the voltage on the primary is dot-negative (more negative at the dotted end), causing a voltage with the same polarity to appear at the transformer secondary (the magnitude of the secondary voltage is set by the transformer secondary-t ...
Discharge studies and prevention in the gas - cern
... propagation of a discharge throughout the detector begins with a sudden, radiation-induced breakdown of the gas rigidity in one GEM, normally the last in a cascade of multipliers. The probability of this initial discharge appears to depend on the primary ionization density and on the overall gain of ...
... propagation of a discharge throughout the detector begins with a sudden, radiation-induced breakdown of the gas rigidity in one GEM, normally the last in a cascade of multipliers. The probability of this initial discharge appears to depend on the primary ionization density and on the overall gain of ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""