Aalborg Universitet
... As shown in Fig. 1, the DG proportional-resonant (PR) voltage controller follows the references generated by power controllers, virtual impedance loop, and secondary controller and generates the reference for the PR current controller. The output of the current controller is transformed back to the ...
... As shown in Fig. 1, the DG proportional-resonant (PR) voltage controller follows the references generated by power controllers, virtual impedance loop, and secondary controller and generates the reference for the PR current controller. The output of the current controller is transformed back to the ...
Aalborg Universitet Study of High Voltage AC Underground Cable Systems
... In this system, initially both capacitor and inductor have no energy, but as the voltage in the capacitor (Vc) has to be continuous, when the circuit breaker closes for a voltage value that not zero, the capacitor has to be charged through the inductor, initiating a transient with the system natural ...
... In this system, initially both capacitor and inductor have no energy, but as the voltage in the capacitor (Vc) has to be continuous, when the circuit breaker closes for a voltage value that not zero, the capacitor has to be charged through the inductor, initiating a transient with the system natural ...
Hysteresis and charge trapping in graphene quantum dots Hemen
... voltage range is found to increase the carrier trapping. This is further supported by the data presented in Table I which tabulates the net detrapped charge (Qd)calculated from the current decay (Fig 4(a)) that results upon the removal of different step voltages. Table I also showsthe remnant curren ...
... voltage range is found to increase the carrier trapping. This is further supported by the data presented in Table I which tabulates the net detrapped charge (Qd)calculated from the current decay (Fig 4(a)) that results upon the removal of different step voltages. Table I also showsthe remnant curren ...
MAX14529E/MAX14530E Overvoltage Protection with USB Charger General Description
... and charge pump that control the turn-on of the internal FET switch. The internal oscillator controls the timers that enable the turn-on of the charge pump and controls the state of the open-drain VOK output. If VIN > VOVLO, the internal oscillator remains off, thus disabling the charge pump. If 2.2 ...
... and charge pump that control the turn-on of the internal FET switch. The internal oscillator controls the timers that enable the turn-on of the charge pump and controls the state of the open-drain VOK output. If VIN > VOVLO, the internal oscillator remains off, thus disabling the charge pump. If 2.2 ...
ACS713 - Allegro Microsystems
... Power-On Time, tPO , is defined as the time it takes for the output voltage to settle within ±10% of its steady state value under an applied magnetic field, after the power supply has reached its minimum specified operating voltage, VCC(min), as shown in the chart at right. ...
... Power-On Time, tPO , is defined as the time it takes for the output voltage to settle within ±10% of its steady state value under an applied magnetic field, after the power supply has reached its minimum specified operating voltage, VCC(min), as shown in the chart at right. ...
BDTIC
... The PX3519 implements an embedded resistor network, which forces the PWM pin of the device in the middle of the shut down window if the PWM input from the controller is floating. In order to avoid cross conduction between the High Side MOSFET and the Low Side MOSFET an anti-shootthrough control is i ...
... The PX3519 implements an embedded resistor network, which forces the PWM pin of the device in the middle of the shut down window if the PWM input from the controller is floating. In order to avoid cross conduction between the High Side MOSFET and the Low Side MOSFET an anti-shootthrough control is i ...
2N3906
... Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's ...
... Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's ...
Optimal Sizing and Placement of Battery Energy
... where {Z11 , L, Z nn } are the elements of impedance matrix and n is the number of buses. Equation (2) depicts that the voltage change of slack bus, normally the first bus is considered as slack bus (DV1 ) , is governed by DV1 = Z1i I i while this voltage should not change. Therefore, the “mirror cu ...
... where {Z11 , L, Z nn } are the elements of impedance matrix and n is the number of buses. Equation (2) depicts that the voltage change of slack bus, normally the first bus is considered as slack bus (DV1 ) , is governed by DV1 = Z1i I i while this voltage should not change. Therefore, the “mirror cu ...
Evaluates: MAX8568A/MAX8568B MAX8568A Evaluation Kit General Description Features
... The MAX8568A evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX8568A and MAX8568B complete backup-management ICs for lithium and NiMH batteries. The MAX8568A EV kit can charge both NiMH and rechargeable lithium battery types; the EV kit default setting is fo ...
... The MAX8568A evaluation kit (EV kit) is a fully assembled and tested circuit board that evaluates the MAX8568A and MAX8568B complete backup-management ICs for lithium and NiMH batteries. The MAX8568A EV kit can charge both NiMH and rechargeable lithium battery types; the EV kit default setting is fo ...
Switched-Mode Parallel-Circuit Class E Tuned Power Amplifiers
... where the load network consists of a capacitance C shunting the transistor, a series inductance LX, a series fundamentally tuned L0C0-circuit and a load resistance R. The collector of the transistor is connected to the supply voltage by RF choke with high reactance at the fundamental frequency. ...
... where the load network consists of a capacitance C shunting the transistor, a series inductance LX, a series fundamentally tuned L0C0-circuit and a load resistance R. The collector of the transistor is connected to the supply voltage by RF choke with high reactance at the fundamental frequency. ...
AN9637: Simple Phase Meter Operates to 10MHz
... comparators connect to ground, so the input signals must use a ground reference. If the bases are not grounded, it’s easy to reference symmetrical inputs to ground by coupling them through a capacitor. Clamp diodes D1 through D4 protect the input bases. R18 and R19 bias the current sources at -2.2V, ...
... comparators connect to ground, so the input signals must use a ground reference. If the bases are not grounded, it’s easy to reference symmetrical inputs to ground by coupling them through a capacitor. Clamp diodes D1 through D4 protect the input bases. R18 and R19 bias the current sources at -2.2V, ...
A Single-Stage 1500 W Amplifier for 160 / 80 / 40 Meters
... final amplifier. The parts count is quite low but the layout is very critical to insure power sharing of the FETs. Figs 7 and 8 show the amplifier module mounted into a chassis for additional testing. The amplifier will produce a lot more power at higher voltages, but the goal was to operate at 50 V ...
... final amplifier. The parts count is quite low but the layout is very critical to insure power sharing of the FETs. Figs 7 and 8 show the amplifier module mounted into a chassis for additional testing. The amplifier will produce a lot more power at higher voltages, but the goal was to operate at 50 V ...
Doubly fed induction generator systems for wind turbines
... any given operating point, this Danish turbine basically has to operate at constant speed. The construction and performance of fixed-speed wind turbines very much depends on the characteristics of mechanical subcircuits, e.g., pitch control time constants, main breaker maximum switching rate, etc. ...
... any given operating point, this Danish turbine basically has to operate at constant speed. The construction and performance of fixed-speed wind turbines very much depends on the characteristics of mechanical subcircuits, e.g., pitch control time constants, main breaker maximum switching rate, etc. ...
Performing locked rotor test on squirrel cage motors
... If full voltage is to be applied to the motor terminals under stall conditions, the test becomes analogous to an Abrupt Short-circuit Prototype Test of a transformer. Consider a 570 kW, 3300 V, 115 A, 4 pole motor with “T” bars (186 mm²) fitted in the rotor. When the rated voltage is applied to the ...
... If full voltage is to be applied to the motor terminals under stall conditions, the test becomes analogous to an Abrupt Short-circuit Prototype Test of a transformer. Consider a 570 kW, 3300 V, 115 A, 4 pole motor with “T” bars (186 mm²) fitted in the rotor. When the rated voltage is applied to the ...
BD6382EFV
... This IC has a built-in thermal shutdown circuit for thermal protection. When the IC’s chip temperature rises above 175℃ (typ.), the motor output becomes OPEN. Also, when the temperature returns to under 150℃ (typ.), it automatically returns to normal operation. However, even when TSD is in operation ...
... This IC has a built-in thermal shutdown circuit for thermal protection. When the IC’s chip temperature rises above 175℃ (typ.), the motor output becomes OPEN. Also, when the temperature returns to under 150℃ (typ.), it automatically returns to normal operation. However, even when TSD is in operation ...
PLL synthesizing oscillator (3)
... Because it is, in the dividing of more than one figure, when connecting the "0" output of the higher rank figure with the CAS terminal of the lower rank, when the subtraction that the higher rank is the number of the specification doesn't complete, "0" of the lower rank figure doesn't become the H c ...
... Because it is, in the dividing of more than one figure, when connecting the "0" output of the higher rank figure with the CAS terminal of the lower rank, when the subtraction that the higher rank is the number of the specification doesn't complete, "0" of the lower rank figure doesn't become the H c ...
Document
... Fig. 1 shows how the radiation emitted by a blackbody is distributed in wavelength（波長）. The quantity Rλ , plotted on the vertical axis in Fig. 1, is called the spectral radiancy（頻譜 光度）. It is defined so that Rλ dλ is the rate at which energy is radiated per unit area of surface for wavelengths lying ...
... Fig. 1 shows how the radiation emitted by a blackbody is distributed in wavelength（波長）. The quantity Rλ , plotted on the vertical axis in Fig. 1, is called the spectral radiancy（頻譜 光度）. It is defined so that Rλ dλ is the rate at which energy is radiated per unit area of surface for wavelengths lying ...
Evaluation Board User Guide UG-122
... when supplying its largest load level (300 mA). Figure 15 shows the typical ground current consumption for various load levels at VIN = 2.5 V. When the device is disabled (EN2 = PGND), ground current drops to less than 2 μA. ...
... when supplying its largest load level (300 mA). Figure 15 shows the typical ground current consumption for various load levels at VIN = 2.5 V. When the device is disabled (EN2 = PGND), ground current drops to less than 2 μA. ...
Buck converter
A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.