capacitors
... Conditions: Capacity and its tolerance is the main parameter. Capacity are produced from 1 pF up to 0,1 F, special ESD can achieve 10 F. Nominal capacity is typically measured at 50 Hz or 1 kHz, for ceramic capacitors sometimes at 1 MHz. Polarization is about units of volts, not higher. Electrolytic ...
... Conditions: Capacity and its tolerance is the main parameter. Capacity are produced from 1 pF up to 0,1 F, special ESD can achieve 10 F. Nominal capacity is typically measured at 50 Hz or 1 kHz, for ceramic capacitors sometimes at 1 MHz. Polarization is about units of volts, not higher. Electrolytic ...
08 SFT2841 connected..
... Tripping current This function gives the RMS values of the phase currents and residual currents at time of the last trip. The measurement is defined as the maximum RMS value measured during a 30 ms interval after the activation of the O1 output. ...
... Tripping current This function gives the RMS values of the phase currents and residual currents at time of the last trip. The measurement is defined as the maximum RMS value measured during a 30 ms interval after the activation of the O1 output. ...
PDF
... the sign of the last perturbation and the sign of the last increment in the power are used to decide what the next perturbation should be. If there is an increment in the power, the perturbation should be kept in the same direction and if the power decreases, then the next perturbation should be in ...
... the sign of the last perturbation and the sign of the last increment in the power are used to decide what the next perturbation should be. If there is an increment in the power, the perturbation should be kept in the same direction and if the power decreases, then the next perturbation should be in ...
STEVAL-IPM15B motor control power board based on the SLLIMM
... The board is designed to be compatible with DC supply from 125 VDC up to 400 VDC voltage. A bulk capacitor according to the power level of the application must be mounted. The footprint is already provided on the board. The SLLIMM integrates six IGBT switches with freewheeling diodes together with h ...
... The board is designed to be compatible with DC supply from 125 VDC up to 400 VDC voltage. A bulk capacitor according to the power level of the application must be mounted. The footprint is already provided on the board. The SLLIMM integrates six IGBT switches with freewheeling diodes together with h ...
Load Surge Management
... ● Full front access facilitates easy service and thermal scanning (all electromechanical connections accessible through the front of the UPS) ● Self calibrating boards (no trim pots or thermal drift) ● Digital diagnostics port interfaces with PC and accesses all PCBs and system status ● Backed by ov ...
... ● Full front access facilitates easy service and thermal scanning (all electromechanical connections accessible through the front of the UPS) ● Self calibrating boards (no trim pots or thermal drift) ● Digital diagnostics port interfaces with PC and accesses all PCBs and system status ● Backed by ov ...
CP35508515
... (PMs) on the rotor and trapezoidal back EMF wave form operates on electronic commutation accomplished by solid state switches. It is powered through a three-phase voltage source inverter (VSI) which is fed from single-phase AC supply using a diode bridge rectifier (DBR) followed by smoothening DC li ...
... (PMs) on the rotor and trapezoidal back EMF wave form operates on electronic commutation accomplished by solid state switches. It is powered through a three-phase voltage source inverter (VSI) which is fed from single-phase AC supply using a diode bridge rectifier (DBR) followed by smoothening DC li ...
90W Resonant SMPS with TEA1610 SwingChip APPLICATION NOTE AN99011
... MOSFET. When less output power is required or the input voltage is increased the frequency will be made higher by the control loop to maintain a constant output voltage. To guarantee an accurate 50% duty cycle, the oscillator signal inside the TEA1610 passes through a divider before it is fed to the ...
... MOSFET. When less output power is required or the input voltage is increased the frequency will be made higher by the control loop to maintain a constant output voltage. To guarantee an accurate 50% duty cycle, the oscillator signal inside the TEA1610 passes through a divider before it is fed to the ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... The voltage/power controllability of the VSC-HVDC system is determined by the controllers included in the system. Adequate performance of the VSC-HVDC system under diverse operating conditions depends on the selection of robust parameters for the control system [8]. Usually, due to their simple stru ...
... The voltage/power controllability of the VSC-HVDC system is determined by the controllers included in the system. Adequate performance of the VSC-HVDC system under diverse operating conditions depends on the selection of robust parameters for the control system [8]. Usually, due to their simple stru ...
2015-114
... the downstream quasi-neutral plasma consists of both positive ions and electrons. In addition to the grids, the hollow cathode neutralizer represents one of the most life-limiting components of current electric propulsion systems. Operation of hollow cathodes can also be very sensitive to surface/pr ...
... the downstream quasi-neutral plasma consists of both positive ions and electrons. In addition to the grids, the hollow cathode neutralizer represents one of the most life-limiting components of current electric propulsion systems. Operation of hollow cathodes can also be very sensitive to surface/pr ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.