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AN2839
AN2839

R15V0L - Zeftronics
R15V0L - Zeftronics

Induction_Motor
Induction_Motor

High performance 3 A ULDO linear regulator
High performance 3 A ULDO linear regulator

MAX7057EVKIT.pdf
MAX7057EVKIT.pdf

Setting up the stick pots for the Phil_G proportional encoders:
Setting up the stick pots for the Phil_G proportional encoders:

... Some manufacturers provide reversing by swapping the outer pot connections with a change-over switch, which means that neutral-stick must be set to exactly half-travel on the pot track. Most commonly the pots are 5k, so in this case, at neutral the wiper would be exactly 2.5k ohms from either end, a ...
File Ref.No.72742/GA - IV - J1/2014/Admn  UNIVERSITY OF CALICUT
File Ref.No.72742/GA - IV - J1/2014/Admn UNIVERSITY OF CALICUT

... a) number of turns X current passing through it b) number of turnsX current passing through it2 c) 2(number of turnsX current passing through it) d) independent of current 15) Magnetic flux is a) imaginary lines of force from north pole to south pole b) imaginary lines of force from south pole to no ...
4 A continuous (more than 5 A pulsed) step
4 A continuous (more than 5 A pulsed) step

... Demonstration board application circuit (fSW = 400 kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Demonstration board application circuit (fSW = 600 kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Junction temperature vs. fSW at VIN = 12 V, VOUT = 3.3 V . . . . . . . . . . . ...
3-17V 1A Step-Down Converter in 2x2 WSON Package
3-17V 1A Step-Down Converter in 2x2 WSON Package

... With its wide operating input voltage range of 3V to 17V, the devices are ideally suited for systems powered from either a Li-Ion or other battery as well as from 12V intermediate power rails. It supports up to 1A continuous output current at output voltages between 0.9V and 6V (with 100% duty cycle ...
Multilevel converters
Multilevel converters

... can be solved by several approaches, such as replacing capacitors by a controlled constant dc voltage source such as pulse-width modulation (PWM) voltage regulators or batteries. The use of a controlled dc voltage will result in system complexity and cost penalties. With the high power nature of uti ...
LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM1575/LM2575/LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator

... intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. Note 2: All limits guaranteed at room temperature (standard type face) and at temperature extremes (bold type face). All limits are used ...
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,

... achieved when the duty cycle is greater than 0.5 and in continuous conduction mode (CCM). In order to simplify the circuit analysis of the proposed converter, some assumptions are made as follows:1) All components are ideal components. 2) The capacitors are sufficiently large, such that the voltages ...
Partial-Resonant Buck–Boost and Flyback DC–DC Converters
Partial-Resonant Buck–Boost and Flyback DC–DC Converters

... of the total power re-quirement. The system and compensator parameters are given in Table I. By monitoring the load currents and PCC voltages, the average load power is computed. At every zero crossing of phase voltage, is generated by using the dc-link voltage controller. The state-space equations ...
BD95513MUV
BD95513MUV

... This pin supplies power to the low side of the FET driver, as well as to the bootstrap diode. As the diode draws its peak current when switching on or off, this pin should be bypassed with a capacitance of approximately 1 µF. ・VREG Output pin from the 5 V linear regulator. This pin also supplies pow ...
DC-DC Power Converters
DC-DC Power Converters

... found by use of two basic circuit analysis principles. The principle of inductor volt-second balance states that the average value, or dc component, of voltage applied across an ideal inductor winding must be zero. This principle also applies to each winding of a transformer or other multiple windin ...
AD8214 数据手册DataSheet 下载
AD8214 数据手册DataSheet 下载

TPS543x 3-A, Wide Input Range, Step-Down
TPS543x 3-A, Wide Input Range, Step-Down

LTC3407A-2 - Linear Technology
LTC3407A-2 - Linear Technology

... Toroid or shielded pot cores in ferrite or permalloy materials are small and don’t radiate much energy, but generally cost more than powdered iron core inductors with similar electrical characterisitics. The choice of which style inductor to use often depends more on the price vs size requirements a ...
an oscillator witu constant output voltage
an oscillator witu constant output voltage

... condition is complied with, is no longer the resonant frequency Jo of the Le circuit. The difference between J and Jo increases as the distortion becomes larger and will therefore not be constant if the supply voltage fluctuates, if the valve heats up, and if it ages in the long run. Another cause o ...
Transients in Power Systems - Purdue e-Pubs
Transients in Power Systems - Purdue e-Pubs

... where a controls the decay rate of the wavelet towards zero and w controls th~efrequency. Note the similarity with the Fourier functions if alpha is zero. The mother wavelet refers to the example function (3) based on which a set of member functions is generated. The family, or set of functions is b ...
BD9851EFV
BD9851EFV

... 1) Reference voltage block The reference voltage block generates a constant voltage with temperature compensated through inputting the power supplied from the Vcc pin. The output voltage is 2.5 V, with a ±1% accuracy. To cancel noises, insert a capacitor with a low ESR (several tens of mΩ) between t ...
Physics 15b Lab 2: Current, Ohm`s Law
Physics 15b Lab 2: Current, Ohm`s Law

... 6. Consider a device with a voltage dependent resistance such that R= 1010 Ohms if the potential difference across the device is less than 0.6 V, and R=0.01 Ohms if the voltage is more than 0.6 V. Let the voltage difference across the device be V=2 Cos[wt]. Plot the voltage across the device as a fu ...
capacitor - Eportfolio@UTM
capacitor - Eportfolio@UTM

... initial value. Eventually the inductor will lose this fight, and the current will change, but this will take some time to happen. This is different from what happens in a circuit with no inductor: if there's no inductor, then the amount of current can increase or decrease immediately. If there is an ...
Chapter 11: Electrical Engineering
Chapter 11: Electrical Engineering

... materials. Typically, the linear relationship between voltage and current in electrical conductors does not apply at very high voltages and currents. Further, not all electrically conducting materials exhibit linear behavior even for small voltages and currents. It is usually true, however, that for ...
MAX8836Z 1.2A PWM Step-Down Converter in General Description
MAX8836Z 1.2A PWM Step-Down Converter in General Description

... regulation, or the inductor current is above the currentlimit threshold. Once off, the high-side switch remains off until the minimum off-time expires and the output voltage falls again below the regulation threshold. During the off period, the low-side synchronous rectifier turns on and remains on ...
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Spark-gap transmitter



A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""
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