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Effect of the Core Loss Resistance on the Steady State
Effect of the Core Loss Resistance on the Steady State

... increasingly being used in generating systems based on alternative energy sources [1]. These features are rugged constructed, simple, robust, less expensive and require very little maintenance. Unlike synchronous machines, induction machines can be operated at variable speeds. They do not require ex ...
TJ5631 - HTC Korea
TJ5631 - HTC Korea

... to be placed directly next to the VIN1 and VIN2 Pin. It allows for the device being some distance from any bulk capacitor on the rail. Additionally, input droop due to load transients is reduced, improving load transient response. Additional capacitance may be added if required by the application. O ...
Class B Amplifier
Class B Amplifier

... P.2. Class AB amplifier P.2.1. Waveforms One way to reduce the crossover distortions is to use the class AB amplifier, where the transistors T1 and T2 are pre-biased by a small dc current, through the R1, D1, D2, R2 network (Fig. 2).  Find the values of the dc voltages in the bases of the two trans ...
Meters, Power Supplies and Generators
Meters, Power Supplies and Generators

Si85xx AC Current Sensor Family
Si85xx AC Current Sensor Family

5305.SMPS Flyback design equations
5305.SMPS Flyback design equations

Neutral Grounding
Neutral Grounding

T3100 Voltage Relay
T3100 Voltage Relay

Charge Sharing by Capacitors
Charge Sharing by Capacitors

... Thus, we may determine the value of an "unknown" capacitor C1 in terms of a "known" capacitor C2 and measured voltages V1, V2 and V'. In circuit #2, in section IV, we have two capacitors and a power supply connected in series. Circuit #3 is used for charging and reading voltages of the capacitors of ...
Voltage leval improment by using Static VAR compensator (SVC)
Voltage leval improment by using Static VAR compensator (SVC)

... always not easy. Due to these problems, the entire power system is operated at its highest capacity which may generate problems of of stability, voltage collapse and grid failure. To provide stable, secure and quality power supply to end users and to utilize available transfer capacities in better w ...
DL Quench Detection System
DL Quench Detection System

File - Electric Circuit Analysis
File - Electric Circuit Analysis

Meaning of symbol
Meaning of symbol

... CAUTION! Please consult the operating instructions before using the device. In these operating instructions, failure to follow or carry out instructions preceded by this symbol may result in personal injury or damage to the device and the installations. ...
FM radio circuit
FM radio circuit

... The IC has an FLL (Frequency-Locked-Loop) system with an intermediate frequency of 70 kHz. The i.f. selectivity is obtained by active RC filters. The only function which needs alignment is the resonant circuit for the oscillator, thus selecting the reception frequency. Spurious reception is avoided ...
Lab 5: Resistance, current, and circuits
Lab 5: Resistance, current, and circuits

Bias Resistor Transistor
Bias Resistor Transistor

... figure for belt speed. Taken together, these control settings make up a heating “profile” for that particular circuit board. On machines controlled by a computer, the computer remembers these profiles from one operating session to the next. Figure 23 shows a typical heating profile for use when sold ...
Evaluates:  MAX1744/MAX1745 MAX1744 Evaluation Kit General Description Features
Evaluates: MAX1744/MAX1745 MAX1744 Evaluation Kit General Description Features

... To generate output voltages other than 3.3V or 5V, replace the MAX1744 with the MAX1745 (adjustable output), and select the external voltage-divider resistors, R2 and R3. The MAX1745 allows the output voltage to be set from 1.25V to 18V. The only other modification required is to remove the shunt fr ...
Figure 15
Figure 15

Time Electronics
Time Electronics

Checking Voltage Drops - Colorado Contractors Association
Checking Voltage Drops - Colorado Contractors Association

Verification of Ohm`s Law, Kirchoff`s Voltage Law and Kirchoff`s
Verification of Ohm`s Law, Kirchoff`s Voltage Law and Kirchoff`s

... voltage and current values were measured and placed into KVL and KCL equations to determine whether they turned out as predicted. These measured values were then used in the Ohm’s law equation to find resistance. The calculated and measured values were then compared to the expected results from the ...
Series 5- Thyristors and Compound Semiconductors
Series 5- Thyristors and Compound Semiconductors

... 2. Thyristors are basically electronic switches that command the energy flux from the source to the load. In the 1st quadrant they have two distinct zones. In the first zone, the thyristor presents a high resistance (ideally, it can be considered as an open circuit): the thyristor is blocked (OFF st ...
Motion Along a Straight Line at Constant
Motion Along a Straight Line at Constant

ECE632_Final
ECE632_Final

... 100% for the 1V output. This circuit can allow for an Ultralow Power circuit to switch between multiple operational voltages efficiently. This is especially important for devices that have different levels of computational complexity at different times, such as wireless sensor nodes. The capacitors ...
Excitation and Ionization Energies of Helium and Mercury
Excitation and Ionization Energies of Helium and Mercury

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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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