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how diodes work - Wiki - Joe Knows Electronics
how diodes work - Wiki - Joe Knows Electronics

... FET increases, so too does the current passing through the device. When the voltage is large enough (about 1.5 volts for the S102-T current regulator diodes in your kit), the current through the devices reaches one milliamp, and remains at that value until the voltage exceeds the 100 volt rated volt ...
- Saraswathi Velu College of Engineering
- Saraswathi Velu College of Engineering

... User load level solutions for specific loads 7. How can power quality problems be detected. ...
UM6J1N
UM6J1N

... "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. ...
AP1186
AP1186

TR41.9-06-02-008-TypeASurgeToleranceCals
TR41.9-06-02-008-TypeASurgeToleranceCals

MAX1573 White LED 1x/1.5x Charge Pump in UCSP and Thin QFN General Description
MAX1573 White LED 1x/1.5x Charge Pump in UCSP and Thin QFN General Description

... The MAX1573 fractional charge pump drives up to four white LEDs with regulated constant current for uniform intensity. By utilizing proprietary adaptive 1x/1.5x modes and ultra-low-dropout current regulators, it maintains the highest possible efficiency over the full 1-cell Li+ battery input voltage ...
SA50-28-3R3S Datasheet
SA50-28-3R3S Datasheet

... Short Circuit / Over Current Limit The output current is limited by the built in current limit circuit, to protect the power supply and the load from overstress. The converter continues to regulate it’s output voltage under this loading condition. If the load impedances of any of the outputs are fur ...
A Method to Enhance Ground
A Method to Enhance Ground

... line-to-ground (DLG), and three-phase short-circuit (3SC). Among these types of faults, the SLG occurs most often while the 3SC is commonly deemed the most severe one with largest magnitude of fault current, significantly influencing the decision on the equipments and protective relays setting for p ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... control method where hysteresis comparators are used to impose a dead band or hysteresis around the reference current. This control scheme provides excellent dynamic performance because it acts quickly. Also, an inherent peak current limiting capability is provided. This technique does not need any ...
ADF5002 数据手册DataSheet 下载
ADF5002 数据手册DataSheet 下载

... charge pump supply (VP). This can be easily achieved using a simple resistor divider, ensuring sufficient decoupling close to the +IN A pin of the OP184. This configuration, in turn, allows the use of a single positive supply for the op amp. Alternatively, to optimize performance by ensuring a clean ...
Thevenin/Norton (Source transformation)
Thevenin/Norton (Source transformation)

Implementing a Battery Energy Storage System with a Converterless
Implementing a Battery Energy Storage System with a Converterless

... The number of individual battery cells depends on the cell voltage. To ensure that the cells can be fully charged and discharged, the voltages corresponding to 0 Ah and 40 Ah charges have to be reached (Fig. 2). However, the battery cells are normally not fully discharged and charged, and therefore, ...
O? Control v|_
O? Control v|_

Embedded 5 V-to-3.3 V Voltage Regulator For Supplying Digital Ic`s
Embedded 5 V-to-3.3 V Voltage Regulator For Supplying Digital Ic`s

... without using an external capacitor. This is difficult to realize since the digital core circuitry draws large and steep supply current peaks. Both the external 5 V and internal 3.3 V supply voltages have the normal 10% tolerance. Manuscript received November 20, 1997; revised February 20, 1998. The ...
CAT IV or CAT III?
CAT IV or CAT III?

1. conversion of ammeter into voltmeter
1. conversion of ammeter into voltmeter

OPA551 OPA552 High-Voltage, High-Current OPERATIONAL AMPLIFIERS
OPA551 OPA552 High-Voltage, High-Current OPERATIONAL AMPLIFIERS

... The OPA551 and OPA552 may be operated from power supplies of ±4V to ±30V, or a total of 60V with excellent performance. Most behavior remains unchanged throughout the full operating voltage range. Parameters that vary significantly with operating voltage are shown in the Typical Performance Curves. ...
R6012ANJ
R6012ANJ

... "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. ...
High-Speed, Single-Supply, Rail-to-Rail
High-Speed, Single-Supply, Rail-to-Rail

... They are optimized for low voltage, single-supply operation. Rail-to-rail input/output, low noise (5nV/√Hz), and high speed operation (44MHz, 22V/µs) make them ideal for driving sampling analog-to-digital converters. They are also well suited for cell phone PA control loops and video processing (75Ω ...
step-up transformer
step-up transformer

... across primary coil) is connected across this coil. 2. Secondary coil – this provides the output voltage Vs (voltage across the secondary coil) to the external circuit. 3. Laminated iron core – this links the two coils magnetically. Notice that there is no electrical connection between the two coils ...
MAX258 500mA, Push-Pull Transformer Driver for Isolated Power Supplies General Description
MAX258 500mA, Push-Pull Transformer Driver for Isolated Power Supplies General Description

... Transformer selection for the MAX258 can be simplified by the use of the ET product. The ET product relates the maximum allowable magnetic flux density in a transformer core to the voltage across a winding and switching period. Inductor magnetizing current in the primary winding changes linearly wit ...
Aalborg Universitet
Aalborg Universitet

The Coin Detector Circuit - Asee peer logo
The Coin Detector Circuit - Asee peer logo

table 7-2 - Newport Scientific
table 7-2 - Newport Scientific

AD815
AD815

... T Z (S ) + G × RIN + RF ...
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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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