Why Alternating Current File
... The transformer's ability to step AC voltage up or down with ease gives AC an advantage unmatched by DC in the realm of power distribution. When transmitting electrical power over long distances, it is far more efficient to do so with stepped-up voltages and steppeddown currents (smaller-diameter wi ...
... The transformer's ability to step AC voltage up or down with ease gives AC an advantage unmatched by DC in the realm of power distribution. When transmitting electrical power over long distances, it is far more efficient to do so with stepped-up voltages and steppeddown currents (smaller-diameter wi ...
KB009
... The fuse link is chosen to have a minimum rating of at least 135% of rated capacitor current. This overrating is due to these three allowances — 10% for overvoltage conditions, 15% for capacitance tolerance and 10% for harmonics. Fuses can be damaged due to high magnitude, high frequency currents. I ...
... The fuse link is chosen to have a minimum rating of at least 135% of rated capacitor current. This overrating is due to these three allowances — 10% for overvoltage conditions, 15% for capacitance tolerance and 10% for harmonics. Fuses can be damaged due to high magnitude, high frequency currents. I ...
Voltage Harmonics Measuring Issues in Medium Voltage
... VT windings are modelled by the lumped capacitances connected only to windings terminals (Fig.13). This assumption reduces noticeable model complexity and allows determining parasitic capacitances based on the measured windings impedances. In the analysed case primary and secondary windings of inves ...
... VT windings are modelled by the lumped capacitances connected only to windings terminals (Fig.13). This assumption reduces noticeable model complexity and allows determining parasitic capacitances based on the measured windings impedances. In the analysed case primary and secondary windings of inves ...
LM22679 - Texas Instruments
... functions necessary to implement an efficient highvoltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 5 A of load current. Excellent line and load regulation along with high efficienc ...
... functions necessary to implement an efficient highvoltage step-down (buck) regulator using a minimum of external components. This easy-to-use regulator incorporates a 42-V N-channel MOSFET switch that can provide up to 5 A of load current. Excellent line and load regulation along with high efficienc ...
Single-stage, single-switch input-current
... voltage of energy-storage (bulk) capacitor CB below the desired level in the entire line and load ranges. Winding N1 appears in series with boost inductor LB during the on-time of switch SW, whereas winding N2 appears in series with LB during the off-time of the switch. By connecting the windings so ...
... voltage of energy-storage (bulk) capacitor CB below the desired level in the entire line and load ranges. Winding N1 appears in series with boost inductor LB during the on-time of switch SW, whereas winding N2 appears in series with LB during the off-time of the switch. By connecting the windings so ...
Understand Low-Dropout Regulator (LDO)
... The load current affects the gain-bandwidth of the error amplifier feedback loop, so it also affects the PSRR. At light load currents, typically less than 50 mA, the output impedance of the pass element is high. The LDO’s output appears to be an ideal current source due to the negative feedback of t ...
... The load current affects the gain-bandwidth of the error amplifier feedback loop, so it also affects the PSRR. At light load currents, typically less than 50 mA, the output impedance of the pass element is high. The LDO’s output appears to be an ideal current source due to the negative feedback of t ...
Simulation of DC-DC Converter-Fed BLDC Motor Drive for PFC
... current (BLDC) motor in these applications is becoming very common due to features of high efficiency, high flux density per unit volume, low maintenance requirements, and low electromagnetic-interference problems [1]. These BLDC motors are not limited to household applications, but these are suitab ...
... current (BLDC) motor in these applications is becoming very common due to features of high efficiency, high flux density per unit volume, low maintenance requirements, and low electromagnetic-interference problems [1]. These BLDC motors are not limited to household applications, but these are suitab ...
ADP1710,11
... Internally, the ADP1710/ADP1711 each consist of a reference, an error amplifier, a feedback voltage divider, and a PMOS pass transistor. Output current is delivered via the PMOS pass device, which is controlled by the error amplifier. The error amplifier compares the reference voltage with the feedb ...
... Internally, the ADP1710/ADP1711 each consist of a reference, an error amplifier, a feedback voltage divider, and a PMOS pass transistor. Output current is delivered via the PMOS pass device, which is controlled by the error amplifier. The error amplifier compares the reference voltage with the feedb ...
FSQ0370RNA, FSQ0370RLA Green Mode Fairchild Power Switch (FPS™) FSQ0370RNA / FSQ0370RLA
... control IC are integrated, making it easier for the control IC to detect the temperature of the SenseFET. If the temperature exceeds approximately 140°C, thermal shutdown is activated. ...
... control IC are integrated, making it easier for the control IC to detect the temperature of the SenseFET. If the temperature exceeds approximately 140°C, thermal shutdown is activated. ...
Low Input Boost Converter With Integrated Power Diode and Input
... switch and power diode, this IC also integrates an output-side isolation switch as shown in the functional block diagram. One common issue with conventional boost regulators is the conduction path from input to output even when the PWM switch is turned off. It creates three problems, which are inrus ...
... switch and power diode, this IC also integrates an output-side isolation switch as shown in the functional block diagram. One common issue with conventional boost regulators is the conduction path from input to output even when the PWM switch is turned off. It creates three problems, which are inrus ...
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.""