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Topics: Parallel circuits, current sources
Topics: Parallel circuits, current sources

... Suppose you needed a resistance equal to precisely 235 Ω for the construction of a precision electrical meter circuit. The only resistors available to you are two 1 kΩ resistors, one 500 Ω resistor, and a rheostat variable between 600 and 1000 ohms. Design a parallel resistor network using any combi ...


Low voltage versatile telephone transmission circuit with dialler
Low voltage versatile telephone transmission circuit with dialler

Sizing gensets for motor starting
Sizing gensets for motor starting

BQ24765 数据资料 dataSheet 下载
BQ24765 数据资料 dataSheet 下载

... This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete devi ...
4.5V to 18V Input Voltage, 3A/2A/2A Output Current Triple
4.5V to 18V Input Voltage, 3A/2A/2A Output Current Triple

... The TPS65261, TPS65261-1 features an automatic power sequence with connecting MODE pin to V7V and configuring EN1/2/3 pins. The device also features an open drain RESET signal to monitor power down. At light load, the TPS65261 automatically operates in pulse skipping mode (PSM) and the TPS65261-1 op ...
ELECTRONIC CONTROL SYSTEMS
ELECTRONIC CONTROL SYSTEMS

... These control instruments series “S” are among the most modern and complete available today on the market. They have been built to command membrane solenoids on dust removal filters. A large back lighted liquid crystal display clearly shows cleaning system status. It has a fast-flow setting menu wit ...
Click Here For See Data
Click Here For See Data

... Comprehend the relationship between the various Electrical quantities connected with alternating current. Explain the concept of simple loop generator State the relationship between m & e State the relation between poles, speed and frequency Define the instantaneous value, maximum value, frequency ...
Application Note
Application Note

... - -The “OFF” or “normal” mode corresponds to the normal low resistance state, in which the PTC device is “invisible” to the circuit, i.e., there are no through losses due to them. This state can also be seen as a standby mode. - -For reference purposes, the resistance ratio between ON vs.OFF state i ...
Chapter 13
Chapter 13

... Electrolytic capacitors are polarized so that one plate is positive, and the other negative. They come in capacitance values from 1F to 200,000 F, with voltage ratings to 350 V. ...
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Data Sheet General Description Features

Ch 18A – Direct Sensing
Ch 18A – Direct Sensing

... alternative sensing devices. For example, use of a thermistor could provide a frostwarning device. ...
January-February p48-78
January-February p48-78

... each to protect against unwanted effects of arcing. The Branch/Feeder AFCI is a device installed at the origin of a branch circuit or feeder to provide protection of branch circuit and feeder wiring. This device also provides limited protection to appliance and extension cords. The B/F AFCI is avail ...
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P25079084

here - Transaction on electrical engineering
here - Transaction on electrical engineering

... The sparse tableau analysis offers not only systematic and automatic approach for assembling the circuit equations but also their subsequent solution provides the currents through all elements, the voltages across all elements and all nodal voltages simultaneously. In general, the circuit equations ...
Chapter 11 Circuits
Chapter 11 Circuits

... 41. When two resistors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5 . Which of the following statements about the resistances is correct? (A) Both R1 and R2 are greater than 5 . (B) Both R1 and R2 are equal to 5 . (C) Both R1 and R2 a ...
EE 1424752
EE 1424752

Voltage Sag Immunity Tests:  Alex McEachern
Voltage Sag Immunity Tests: Alex McEachern

... Properly designed transformer-based sag generators can almost always provide sufficient pulse current. However, hand-operated or motor-driven variable transformers should be avoided, as the contact point limits available pulse current. Oversized transformers with multiple fixed taps are optimal. The ...
MAX1802 Digital Camera Step-Down Power Supply General Description
MAX1802 Digital Camera Step-Down Power Supply General Description

DC bus voltage control for a distributed power system
DC bus voltage control for a distributed power system

... losses decrease for rectifier operation compared to inverter operation. This implies that the maximum allowable rectifier power is higher than the maximum inverter power based on the assumption that the converter losses are equal in the two cases. When this method is used, communication is not requi ...
MAX15023 Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller General Description
MAX15023 Wide 4.5V to 28V Input, Dual-Output Synchronous Buck Controller General Description

... MAX15023 includes two independent power-good outputs and two independent enable inputs with precise turn-on/turn-off thresholds, which can be used for supply monitoring and for power sequencing. Additional protection features include cycle-by-cycle, low-side, sink peak current limit, and thermal shu ...
Evaluates: MAX44267 MAX44267 Evaluation Kit
Evaluates: MAX44267 MAX44267 Evaluation Kit

... For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. ...
CHANCE® Proximity Voltage Indicator
CHANCE® Proximity Voltage Indicator

Using The Digital Multimeter - Robotics Engineering CTE502
Using The Digital Multimeter - Robotics Engineering CTE502

METRAHIT  ENERGY TRMS SYSTEM Multimeter
METRAHIT ENERGY TRMS SYSTEM Multimeter

... Measured quantities are selected by means of a rotary switch and a function key. The measuring range is automatically matched to the measured values. The measuring range can also be selected and locked manually with a key. Peak Value Monitoring for Automatic and Manual Measuring Range ...
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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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