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MAX1533/MAX1537 High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers General Description
MAX1533/MAX1537 High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers General Description

... Controllers for Notebook Computers (Circuit of Figure 1, VIN = 12V, both SMPS enabled, VCC = 5V, FSEL = REF, SKIP = GND, VILIM_ = VLDO5, VINA = 15V, VLDOA = 12V, ILDO5 = ILDO3 = ILDOA = no load, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) ...
high voltage. instrument transformers.
high voltage. instrument transformers.

... LB (hairpin type, oil-paper), CG (gas type) or CX (dry type) followed by 2 or 3 numbers indicating the maximum service voltage for which they have been designed. The table on the next page shows the range manufactured by ARTECHE. These characteristics are merely indicative; ARTECHE can manufacture t ...
Aluminum Electrolytic Capacitor Application Guide
Aluminum Electrolytic Capacitor Application Guide

... low leakage currents and small capacitance change with temperature. They are especially suited to AC applications through their combination of high capacitance and low DF that permits high AC currents. However, they have relatively large sizes and weights. The popular polymers used for plastic-film ...
MAX3130/MAX3131 3V to 5.5V, IrDA Infrared Transceiver with Integrated RS-232 Interface General Description
MAX3130/MAX3131 3V to 5.5V, IrDA Infrared Transceiver with Integrated RS-232 Interface General Description

Teach Yourself Electricity and Electronics
Teach Yourself Electricity and Electronics

... All matter is made up of countless tiny particles whizzing around. These particles are extremely dense; matter is mostly empty space. Matter seems continuous because the particles are so small, and they move incredibly fast. Each chemical element has its own unique type of particle, known as its ato ...
W. Li and D.J. Perreault, “Switched-Capacitor Step-Down Rectifier for Low-Voltage Power Conversion,” 2013 IEEE Applied Power Electronics Conference , pp. 1884-1891, March 2013.
W. Li and D.J. Perreault, “Switched-Capacitor Step-Down Rectifier for Low-Voltage Power Conversion,” 2013 IEEE Applied Power Electronics Conference , pp. 1884-1891, March 2013.

MAX220–MAX249
MAX220–MAX249

... amplifiers with an input voltage range that extends from 4.5V to 76V making them ideal for telecom, automotive, backplane, and other systems where high-voltage current monitoring is critical. The MAX4080 is designed for unidirectional current-sense applications and the MAX4081 allows bidirectional c ...
MAX1533A/MAX1537A High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers General Description
MAX1533A/MAX1537A High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers General Description

... The MAX1533A/MAX1537A are dual step-down, switchmode power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from the lowest input voltage ...
Brake Service and Maintenance
Brake Service and Maintenance

BD00IC0MEFJ-LB
BD00IC0MEFJ-LB

MAX17020 Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator General Description
MAX17020 Dual Quick-PWM Step-Down Controller with Low-Power LDO, RTC Regulator General Description

... power by operating in pulse-skipping mode or in ultrasonic mode to avoid audible noise. Ultrasonic mode forces the controller to maintain switching frequencies greater than 20kHz at light loads. An internal 100mA linear regulator can be used to either generate the 5V bias needed for power-up or othe ...
a zero voltage switching boost converter using a soft
a zero voltage switching boost converter using a soft

... Many variations of the original boost topology have been suggested to overcome these problems. The Zero Voltage Transition Boost converter is one such solution. In such a converter an auxiliary resonant circuit is employed which is activated only when the boost switch is turning on or off. This auxi ...
Design of Single-Switch Inverters for Variable Resistance / Load
Design of Single-Switch Inverters for Variable Resistance / Load

Design of Single-Switch Inverters for Variable Resistance
Design of Single-Switch Inverters for Variable Resistance

... switching for load variations of more than about a factor of two or three in resistance. In many applications – such as when the load resistance is well known, or the inverter is coupled to the load via an isolator – this load sensitivity is not problematic. In other applications, however, it would ...
3-Phase PM Synchronous Motor Nyachulue Njita High Speed with Low Torque
3-Phase PM Synchronous Motor Nyachulue Njita High Speed with Low Torque

... where the DC voltage source is shown. A separately excited DC source is needed to energize the rotor of the motor after it has reached maximum speed. This produces a strong, constant magnetic field in the rotor, which locks in step with the rotating magnetic field of the stator. Because the rotor tu ...
MAX220–MAX249 +5V-Powered, Multichannel RS-232 Drivers/Receivers General Description
MAX220–MAX249 +5V-Powered, Multichannel RS-232 Drivers/Receivers General Description

BD00IA5MEFJ-LB
BD00IA5MEFJ-LB

... (2). Connecting the power supply connector backward Connecting of the power supply in reverse polarity can damage IC. Take precautions when connecting the power supply lines. An external direction diode can be added. (3). Power supply lines Design PCB layout pattern to provide low impedance GND and ...
BD00HA3MEFJ-LB
BD00HA3MEFJ-LB

74HCT9046A 1. General description PLL with band gap controlled VCO
74HCT9046A 1. General description PLL with band gap controlled VCO

TRANSIENT RECOVERY VOLTAGE (TRV) FOR HIGH
TRANSIENT RECOVERY VOLTAGE (TRV) FOR HIGH

... Even when overhead lines are present, it is possible for the recovery voltage to be oscillatory. To be oscillatory, the surge impedance of a source side line has to be such that the equivalent surge impedance Zeq is equal or higher than 0.5 Leq / Ceq (Leq = equivalent source inductance, Ceq = equiva ...
MAX16927 Automotive TFT-LCD Power Supply with Boost, Buck, and Cuk Converters,
MAX16927 Automotive TFT-LCD Power Supply with Boost, Buck, and Cuk Converters,

... The device is designed to operate from a supply voltage between 4.5V and 16V, making it ideal for automotive TFT-LCD applications. Alternatively, the device can operate from an available 3V to 5.5V supply. The device uses an integrated SPI interface for control and diagnostics. The SPI interface adj ...
LP5912 500-mA Low-Noise, Low-IQ LDO (Rev. D)
LP5912 500-mA Low-Noise, Low-IQ LDO (Rev. D)

... Short-circuit current (ISC) is equivalent to current limit. To minimize thermal effects during testing, ISC is measured with VOUT pulled to 100 mV below its nominal voltage. Reverse current (IRO) is measured at the IN pin. Quiescent current is defined here as the difference in current between the in ...
Aluminum Electrolytic Capacitors
Aluminum Electrolytic Capacitors

... thicknesses of less than 1 µm are attained, thus enabling very small electrode spacings. This is one reason for the high volumetric efficiency achieved (e.g. in comparison to the minimum thickness of a paper dielectric, 6 to 8 µm). During the forming process the very fine pits of the etched foils wi ...
Transfrormer_Handouts
Transfrormer_Handouts

... terminals of like polarity. Consider the two windings shown in Fig.3.7a. Terminals 1 and 3 are identical, because currents entering these terminals produce fluxes in the same direction in the core that forms the common magnetic path. For the same reason, terminals 2 and 4 are identical. If these two ...
The Transfrormer
The Transfrormer

... terminals of like polarity. Consider the two windings shown in Fig.3.7a. Terminals 1 and 3 are identical, because currents entering these terminals produce fluxes in the same direction in the core that forms the common magnetic path. For the same reason, terminals 2 and 4 are identical. If these two ...
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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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