file_46198 - Teaching Advanced Physics
... You may wish to adjust the start condition for logging so that logging only begins when the potential difference falls below a chosen value. This is called a ‘triggered’ start. To identify a suitable value for the trigger potential difference, choose a value which is slightly less than the maximum p ...
... You may wish to adjust the start condition for logging so that logging only begins when the potential difference falls below a chosen value. This is called a ‘triggered’ start. To identify a suitable value for the trigger potential difference, choose a value which is slightly less than the maximum p ...
LZ129fire
... HYPOTHESIS 1 — Electric Charging and Sparking of an Isolated Panel The first hypothesis is that “outer cover ignition” was caused by a spark generated by electrical charges on “unique, isolated panels, each developing its own unequal charge”. There is another part to this hypothesis not made explic ...
... HYPOTHESIS 1 — Electric Charging and Sparking of an Isolated Panel The first hypothesis is that “outer cover ignition” was caused by a spark generated by electrical charges on “unique, isolated panels, each developing its own unequal charge”. There is another part to this hypothesis not made explic ...
Meiden Review 2013 No.2 (Series No.158)
... in lighting or electrical facility malfunction, some adequate measures have to be taken. In particular, this would be the case at an area where the power grid is weak, like at the end of a power distribution system. In addition, the photovoltaic power generation and wind power generation have recent ...
... in lighting or electrical facility malfunction, some adequate measures have to be taken. In particular, this would be the case at an area where the power grid is weak, like at the end of a power distribution system. In addition, the photovoltaic power generation and wind power generation have recent ...
MAX1714 High-Speed Step-Down Controller for Notebook Computers General Description
... constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The MAX1714 achieves high efficiency at a reduced cost by eliminating the current-sense resi ...
... constant-on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns “instant-on” response to load transients while maintaining a relatively constant switching frequency. The MAX1714 achieves high efficiency at a reduced cost by eliminating the current-sense resi ...
Aalborg Universitet Inducverters: PLL-Less Converters with Auto-Synchronization and Emulated Inertia Capability
... Fig. 2 shows the power waveforms of an induction machine as a function of rotor speed and at different synchronous speed. As it is seen, when a machine, with arbitrarily initial rotor speed near to the synchronous speed (point A in Fig. 2) and constant load power on its shaft, is connected to a grid ...
... Fig. 2 shows the power waveforms of an induction machine as a function of rotor speed and at different synchronous speed. As it is seen, when a machine, with arbitrarily initial rotor speed near to the synchronous speed (point A in Fig. 2) and constant load power on its shaft, is connected to a grid ...
PWA_Mod06_Prob01_v07
... This is not a good choice for the second step. If we were to find the resistive voltage, it would be because we were going to take KVL around Loop A shown in this diagram. That would mean we would also need to find the voltage across the current source. The only way to find the voltage across the cu ...
... This is not a good choice for the second step. If we were to find the resistive voltage, it would be because we were going to take KVL around Loop A shown in this diagram. That would mean we would also need to find the voltage across the current source. The only way to find the voltage across the cu ...
TPS54360-Q1 4.5-V To 60-V Input, 3.5-A, Step
... minimum required to operate the high-side MOSFET, the output is switched off until the capacitor is refreshed. ...
... minimum required to operate the high-side MOSFET, the output is switched off until the capacitor is refreshed. ...
ADP2102 - Analog Devices
... that converts a 2.7 V to 5.5 V unregulated input voltage to a lower regulated output voltage with up to 95% efficiency and 1% accuracy. The low duty cycle capability of the ADP2102 is ideal for USB applications or 5 V systems that power up submicron subvolt processor cores. Its 3 MHz typical operati ...
... that converts a 2.7 V to 5.5 V unregulated input voltage to a lower regulated output voltage with up to 95% efficiency and 1% accuracy. The low duty cycle capability of the ADP2102 is ideal for USB applications or 5 V systems that power up submicron subvolt processor cores. Its 3 MHz typical operati ...
580393681ADM3202_22_1385_c.pdf
... the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance ...
... the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance ...
Power Electronics Prof. K. Gopakumar Centre for Electronics
... amplitude harmonics will be shifted to the high frequency side which is the frequency of the triangle wave form. So, high frequency amplitude, high amplitude harmonics are shifted to the high frequency side that is at the triangle side, then the impedance for this harmonics L omega will increase and ...
... amplitude harmonics will be shifted to the high frequency side which is the frequency of the triangle wave form. So, high frequency amplitude, high amplitude harmonics are shifted to the high frequency side that is at the triangle side, then the impedance for this harmonics L omega will increase and ...
A transformer is an electrical device that transfers energy from one
... This may have been the first practical power transformer. They also exhibited the invention in Turin in 1884, where it was adopted for an electric lighting system. Their early devices used an open iron core, which was soon abandoned in favour of a more efficient circular core with a closed magnetic ...
... This may have been the first practical power transformer. They also exhibited the invention in Turin in 1884, where it was adopted for an electric lighting system. Their early devices used an open iron core, which was soon abandoned in favour of a more efficient circular core with a closed magnetic ...
Load range extension methods for lightning impulse testing with
... range of a lightning impulse test circuit. The front time T1 of a lightning impulse is proportional to the product of the total front resistance RS and the series connection of the test capacitance and the impulse generator capacitance. High capacitive test objects require a low series resistance va ...
... range of a lightning impulse test circuit. The front time T1 of a lightning impulse is proportional to the product of the total front resistance RS and the series connection of the test capacitance and the impulse generator capacitance. High capacitive test objects require a low series resistance va ...
QM2327232733
... However, when the dc link of the DSTATCOM supplies the dc load as well, the corresponding dc power is comparable to the average load power and, hence, plays a major role in the transient response of the compensator. Hence, there are two important issues. The first one is the regulation of the dc-lin ...
... However, when the dc link of the DSTATCOM supplies the dc load as well, the corresponding dc power is comparable to the average load power and, hence, plays a major role in the transient response of the compensator. Hence, there are two important issues. The first one is the regulation of the dc-lin ...
Introduction
... performer directly (It is thus advisable to use long metal objects). The performer must be extremely careful to stay clear of the dangerous wiring between the main unit and the transformer, as well as all components on the main unit. Arcs can jump several inches from these components, and pose a let ...
... performer directly (It is thus advisable to use long metal objects). The performer must be extremely careful to stay clear of the dangerous wiring between the main unit and the transformer, as well as all components on the main unit. Arcs can jump several inches from these components, and pose a let ...
Application note
... Both designs uses full bridge topology. The difference is in the circuit between the bridge and charging coil. There are two capacitances Cser1 and Cser2 in serial with charging power coil and the filter on the A13 design for better EMC performance. This filter contains two coils L1 and L2, parallel ...
... Both designs uses full bridge topology. The difference is in the circuit between the bridge and charging coil. There are two capacitances Cser1 and Cser2 in serial with charging power coil and the filter on the A13 design for better EMC performance. This filter contains two coils L1 and L2, parallel ...
Common-Mode Voltage Eliminated 2-level PWM Inverter
... Dept. of Electronics and Communication College of Engineering Trivandrum, Kerala, India [email protected] Abstract— Conventional Pulse Width Modulated (PWM) inverters create common mode voltage with high frequency and dv⁄dt. Common-mode voltage causes motor shaft voltage, bearing current and electro ...
... Dept. of Electronics and Communication College of Engineering Trivandrum, Kerala, India [email protected] Abstract— Conventional Pulse Width Modulated (PWM) inverters create common mode voltage with high frequency and dv⁄dt. Common-mode voltage causes motor shaft voltage, bearing current and electro ...
E8 - Signals And Emissions
... system, why is the transmitter's peak power greater than its average power? A. The signal duty cycle is less than 100% B. The signal reaches peak amplitude only when voice modulated C. The signal reaches peak amplitude only when voltage spikes are generated within the modulator D. The signal reaches ...
... system, why is the transmitter's peak power greater than its average power? A. The signal duty cycle is less than 100% B. The signal reaches peak amplitude only when voice modulated C. The signal reaches peak amplitude only when voltage spikes are generated within the modulator D. The signal reaches ...
B.Tech I st Year GR-14 Supply Question Papers(June 2015)
... used to express the two dimensions of frequency and phase shift at one time In mathematics, ‘i’ is used to represent imaginary numbers. In the study of electricity and electronics, j is used to represent imaginary numbers so that there is no confusion with I, which in electronics represents current ...
... used to express the two dimensions of frequency and phase shift at one time In mathematics, ‘i’ is used to represent imaginary numbers. In the study of electricity and electronics, j is used to represent imaginary numbers so that there is no confusion with I, which in electronics represents current ...
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.""