higher tier revision questions
... 15) How much electrical energy is converted into heat and light energy when a 100W bulb is turned on for 6 minutes? 2 marks 16) How long would it take for 3.2kJ to be used up by a speaker rated at 40W? 2 marks Main electricity, A.C and D.C. 17) Calculate the correct fuse that should be included in a ...
... 15) How much electrical energy is converted into heat and light energy when a 100W bulb is turned on for 6 minutes? 2 marks 16) How long would it take for 3.2kJ to be used up by a speaker rated at 40W? 2 marks Main electricity, A.C and D.C. 17) Calculate the correct fuse that should be included in a ...
Rev. 0
... The ADP3110 is optimally designed with an internal drive impedance that works with most MOSFETs to switch them efficiently yet minimize dV/dt. However, some high speed MOSFETs may require this external gate resistor, depending on the currents being switched in the MOSFET. ...
... The ADP3110 is optimally designed with an internal drive impedance that works with most MOSFETs to switch them efficiently yet minimize dV/dt. However, some high speed MOSFETs may require this external gate resistor, depending on the currents being switched in the MOSFET. ...
RF3934 120W GaN WIDEBAND POWER AMPLIFIER Features
... the device is saturated and uncontrolled drain current will destroy the transistor. The gate voltage must be taken to a potential lower than the source voltage to pinch off the device prior to applying the drain voltage, taking care not to exceed the gate voltage maximum limits. RFMD recommends appl ...
... the device is saturated and uncontrolled drain current will destroy the transistor. The gate voltage must be taken to a potential lower than the source voltage to pinch off the device prior to applying the drain voltage, taking care not to exceed the gate voltage maximum limits. RFMD recommends appl ...
ancillary services
... Ancillary services are defined as all those activities on the interconnected grid that are necessary to support the transmission of power in maintaining and ensuring reliable operation and the required degree of quality and safety. ...
... Ancillary services are defined as all those activities on the interconnected grid that are necessary to support the transmission of power in maintaining and ensuring reliable operation and the required degree of quality and safety. ...
LLC Resonant Half Bridge Converter 300 W Evaluation Module
... This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering pra ...
... This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering pra ...
Arc Spray Systems
... machine mounting • Reliable, robust control console and push drive • 400 Amp power supply ...
... machine mounting • Reliable, robust control console and push drive • 400 Amp power supply ...
Lesson -13:
... The three phase fully controlled bridge converter has been probably the most widely used power electronic converter in the medium to high power applications. Three phase circuits are preferable when large power is involved. The controlled rectifier can provide controllable out put dc voltage in a si ...
... The three phase fully controlled bridge converter has been probably the most widely used power electronic converter in the medium to high power applications. Three phase circuits are preferable when large power is involved. The controlled rectifier can provide controllable out put dc voltage in a si ...
Single/Dual/Quad, Ultra-High-Speed, +3V/+5V, Beyond-the-Rails Comparators MAX961–MAX964/MAX997/MAX999 _________________General Description
... The MAX961–MAX964/MAX997/MAX999 are low-power, ultra-high-speed comparators with internal hysteresis. These devices are optimized for single +3V or +5V operation. The input common-mode range extends 100mV Beyond-the-Rails™, and the outputs can sink or source 4mA to within 0.52V of GND and V CC . Pro ...
... The MAX961–MAX964/MAX997/MAX999 are low-power, ultra-high-speed comparators with internal hysteresis. These devices are optimized for single +3V or +5V operation. The input common-mode range extends 100mV Beyond-the-Rails™, and the outputs can sink or source 4mA to within 0.52V of GND and V CC . Pro ...
Aalborg Universitet Voltage Ride-Through Mode
... It is reported that the global installed photovoltaic (PV) capacity hit a new record by the beginning of 2013, being over 100 GW [1]. The development of single-phase PV systems connected to the public grid has been booming progressively in recent years as well, mainly due to the attractive feed-in t ...
... It is reported that the global installed photovoltaic (PV) capacity hit a new record by the beginning of 2013, being over 100 GW [1]. The development of single-phase PV systems connected to the public grid has been booming progressively in recent years as well, mainly due to the attractive feed-in t ...
TLC372 数据资料 dataSheet 下载
... for very short periods of time. Electrostatic discharge (ESD) is one of the most common causes of damage to CMOS devices. It can occur when a device is handled without proper consideration for environmental electrostatic charges, e.g. during board assembly. If a circuit in which one amplifier from a ...
... for very short periods of time. Electrostatic discharge (ESD) is one of the most common causes of damage to CMOS devices. It can occur when a device is handled without proper consideration for environmental electrostatic charges, e.g. during board assembly. If a circuit in which one amplifier from a ...
Film Capacitors, Power Factor Correction, Power Quality Solutions
... quality problems and use energy more efficiently and reliably. Harmonic pollution is a growing problem with the increasing use of power electronics and non-linear loads (such as variable speed drives, UPS, computers, servers, TV sets, etc.). The presence of harmonics increases the RMS current in pow ...
... quality problems and use energy more efficiently and reliably. Harmonic pollution is a growing problem with the increasing use of power electronics and non-linear loads (such as variable speed drives, UPS, computers, servers, TV sets, etc.). The presence of harmonics increases the RMS current in pow ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... terminal, high current flow at both grid and rotor side converters, and high voltage across the dc link capacitor may lead to converter station blocking. This condition will be ended by the disconnection of the DFIG from the system. Most of the studies about the DFIG are concerned about the improvem ...
... terminal, high current flow at both grid and rotor side converters, and high voltage across the dc link capacitor may lead to converter station blocking. This condition will be ended by the disconnection of the DFIG from the system. Most of the studies about the DFIG are concerned about the improvem ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... Generally, the unbalanced loads in an AC system produce undesired negative and zero sequence currents [18]. Negative sequence current is capable of causing excessive heating in electrical machines, saturation in transformers, ripples in rectifiers or even instability problems of generators. Zero seq ...
... Generally, the unbalanced loads in an AC system produce undesired negative and zero sequence currents [18]. Negative sequence current is capable of causing excessive heating in electrical machines, saturation in transformers, ripples in rectifiers or even instability problems of generators. Zero seq ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.