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ISO-BOOST 50 SAFEtech ISO-BOOST 100
ISO-BOOST 50 SAFEtech ISO-BOOST 100

RadioRA 2 Architectural RF GrafikTT Local Controls product specifications
RadioRA 2 Architectural RF GrafikTT Local Controls product specifications

... Some local controls can be used to control power boosters or load interfaces. Up to three power boosters or load interfaces can be used with one control. See table below for a list of controls and compatible power boosters and load interfaces. When controlling power boosters/load interfaces, the neu ...
Low Voltage Ride-through Capability Enhancement of Doubly Fed
Low Voltage Ride-through Capability Enhancement of Doubly Fed

... efficient control scheme to improve the LVRT capability of the DFIG under balanced voltage dips, by using a passive resistive hardware called stator damping resistor (SDR) located in series with the stator windings. The SDR method can enhance the DFIG voltage dip behaviour by reducing the peak rotor ...
rtfx harmonic problems in capacitor banks
rtfx harmonic problems in capacitor banks

... - A new concept in harmonic filtering Filtering of 3rd, 5th, 7th, 9th, 15th, 17th and 19th harmonic Several advantages with respect to other filters in the market: - Very good filtering level for competitive price - No electronics or capacitors, maintenance free and very reliable - No generation of ...
Commercial Powersines COMEC
Commercial Powersines COMEC

... ComEC, generating more losses and heat. In addition, ComEC produces a pure sinusoidal waveform to the load and even suppresses harmonics and electrical distortions; therefore improving power quality. Since the system core is composed of power transformers, the overall design of the system is robust ...
5.2.3 Analogue to Digital Converters Word Document | GCE
5.2.3 Analogue to Digital Converters Word Document | GCE

... time to convert the analogue signal into a binary number. The analogue signal is connected directly to each comparator. They simultaneously switch their outputs into either positive or negative saturation. (For this reason, this type of ADC is also known as a ‘parallel A to D converter’.) The priori ...
KF3617641768
KF3617641768

objectives
objectives

... • To equip a circuit with a battery and a wire leading from positive to negative terminal without an electrical device (light bulb, beeper, motor, etc.) would lead to a high rate of charge flow. Such a circuit is referred to as a short circuit. It would heat the wires to a high temperature and drain ...
MAX15090/MAX15090A Evaluate: MAX15090/MAX15090A Evaluation Kits General Description
MAX15090/MAX15090A Evaluate: MAX15090/MAX15090A Evaluation Kits General Description

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PDF (1.45 MB)

... LED even if the supply voltage varies. Mitsubishi Electric has developed an LED driver that successfully suppresses the over-current by feed forward control and pulse width modulation (PWM) control with variable duty cycle. This paper describes how the over-current is prevented from flowing into the ...
UM0933
UM0933

... A resistor, capable of dissipating the maximum power delivered by the machine (2.5 kW), in a range of resistance between 0.2 and 0.3 Ω, can be used. In this case a valid cooling system (fan or water) should be used to diffuse the heat dissipated by the resistor. For the second option, it is sufficie ...
Inv 14
Inv 14

MAX6971 16-Port, 36V Constant-Current LED Driver General Description Features
MAX6971 16-Port, 36V Constant-Current LED Driver General Description Features

... The MAX6971 serial-interfaced LED driver provides 16 open-drain, constant-current-sinking LED driver outputs rated at 36V. The MAX6971 operates from a 3V to 5.5V supply. The MAX6971 supply and the LEDs’ supply or supplies can power up in any order. The constant-current outputs are programmed togethe ...
A new configuration and control of doubly fed induction generator
A new configuration and control of doubly fed induction generator

... the grid through a connection transformer. The rotor side converter controls the real and reactive power output to the grid according to the maximum power tracking curve designed for the generator. The grid side converter has two responsibilities. During the steady state operation, it injects approp ...
EE25 RJIT PAPER
EE25 RJIT PAPER

... been widely available for high-power high-voltage applications such as uninterruptible power supplies, flexible ac transmission systems, and HVDC. Where as conventional two-level inverter have some limitations in high-power high-voltage applications due to switching losses and power ratings [1-2]. B ...
ADP1823 数据手册DataSheet 下载
ADP1823 数据手册DataSheet 下载

... and is sized to handle large MOSFETs for point-of-load regulators. The two channels operate 180° out of phase, reducing stress on the input capacitor and allowing smaller, low cost components. The ADP1823 is ideal for a wide range of high power applications, such as DSP and processor core I/O power, ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,

A 0.6 V Input CCM/DCM Operating Digital Buck Converter in 40 nm
A 0.6 V Input CCM/DCM Operating Digital Buck Converter in 40 nm

... control circuits, the operating voltage can be reduced to 0.5 V with low quiescent current. The conversion efficiency of the and , which LDO, however, is limited by the ratio of is not applicable for adaptive power supply voltage control in digital circuits. A low-voltage buck converter with high co ...
MAX® 5100 Owner`s Manual
MAX® 5100 Owner`s Manual

... SignalPerfect™ Coaxial Line Protection All coaxial cable sheaths from outdoors must be grounded to the building grounding electrode system where they enter the building (per applicable NEC/CEC code). A driven ground rod is not adequate. Panamax’s exclusive SignalPerfect™ Technology provides applicat ...
Nakamichi
Nakamichi

... and the existing semiconductors in the block. An imperfect balance can cause larger distortion or unwanted oscillation. To maintain a good baiance, connect an 812 100W load resistance to the output terminal, measure distortion and check that it meets the following requirements: (In this case, the re ...
SINGLE-SUPPLY RAIL-TO-RAIL OPERATIONAL AMPLIFIERS OPA340-EP FEATURES SUPPORTS DEFENSE, AEROSPACE,
SINGLE-SUPPLY RAIL-TO-RAIL OPERATIONAL AMPLIFIERS OPA340-EP FEATURES SUPPORTS DEFENSE, AEROSPACE,

... Figure 24). The N-channel pair is active for input voltages close to the positive rail, typically (V+) – 1.3 V to 500 mV above the positive supply, while the P-channel pair is on for inputs from 500 mV below the negative supply to approximately (V+) – 1.3 V. There is a small transition region, typic ...
MAX4473 Low-Cost, Low-Voltage, PA Power Control Amplifier for GSM Applications General Description
MAX4473 Low-Cost, Low-Voltage, PA Power Control Amplifier for GSM Applications General Description

... RL = 10kΩ, CL = 300pF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 6.0V, VPC = 1.0V, TA = +25°C.) (Note 1) ...
LTC4059
LTC4059

... voltage accuracy of ±0.6%. No blocking diode or external sense resistor is required; thus, the basic charger circuit requires only two external components. The ACPR pin (LTC4059A) monitors the status of the input voltage with an open-drain output. The Li CC pin (LTC4059) disables constant-voltage op ...
B42031119
B42031119

Aalborg Universitet
Aalborg Universitet

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Electrical ballast



An electrical ballast is a device intended to limit the amount of current in an electric circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps, to limit the current through the tube, which would otherwise rise to destructive levels due to the tube's negative resistance characteristic.Ballasts vary in design complexity. They can be as simple as a series resistor or inductor, capacitors, or a combination thereof or as complex as electronic ballasts used with fluorescent lamps and high-intensity discharge lamps.
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