• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Experiment No
Experiment No

... but not against the transistor. Record which peak, positive or negative, of the output wave begins to distort. 2. Now insert a 100 ohm swamping resistor in the emitter leg of circuit. Once ...again readjust the base circuit resistance Rs for a VCE equal to approximately half of Vee. Apply a maximum ...
A DC27-2 Maxstar 150 STH.qxd
A DC27-2 Maxstar 150 STH.qxd

an oscillator witu constant output voltage
an oscillator witu constant output voltage

... recognized that the limitation of the oscillation amplitude is effected by the working of the regulating system and not - as in the case of the usual Le oscillators with a grid capacitor and grid leak - by the occurrence of grid current. The latter biases the control grid to such an extent that the ...
III. MoDeling of proposed Topology
III. MoDeling of proposed Topology

... proposed. In addition, the structure of the proposed topology is optimized for various aims. Finally, a design example of the proposed multilevel converter is included. The basic unit of the multilevel module(MLM), presented in [19], is illustrated in Fig. 1.1(a). It consists of several capacitors ...
Atmel AVR1631: Single Phase Energy Meter
Atmel AVR1631: Single Phase Energy Meter

... An energy meter measures the amount of electrical energy supplied to a residential or commercial building. The most common unit of measurement made by a meter is the kilowatt hour, which is equal to the amount of energy used by a load of one kilowatt in one hour. Figure 3-1 shows a system block diag ...
Determining Excitation Voltage
Determining Excitation Voltage

- aes journals
- aes journals

... fs - Switching frequency [Hz] Ton - switch turn-on time [s] Toff - switch turn-off time [s] Switching also causes an EMI problem, because a large amount of di/dt and dv/dt is generated in the process. By raising the switching frequency, can reduce the size of a transformer and filter, which helps bu ...
MAX17498A/MAX17498B/MAX17498C AC-DC and DC-DC Peak Current-Mode Converters for Flyback/Boost Applications
MAX17498A/MAX17498B/MAX17498C AC-DC and DC-DC Peak Current-Mode Converters for Flyback/Boost Applications

... for implementing an isolated and nonisolated universal (85V AC to 265V AC) offline single-switch flyback converter or telecom (36V to 72V) power supplies. The MAX17498B/MAX17498C offer a UVLO wakeup level of 4.4V and are well suited for low-voltage DC-DC flyback/ boost power supplies. An internal re ...
A DC27-2 Maxstar 150 STH
A DC27-2 Maxstar 150 STH

... allows the operator to choose standard or 2T trigger method to meet the application. Built-in gas solenoid eliminates the need for bulky torch with a gas valve. Adaptive Hot Start™ for Stick arc starts automatically increases the output amperage at the start of a weld should the start require it. Pr ...
Slash Rated Devices 2
Slash Rated Devices 2

... The "High" Resistance Grounded System offers the advantage that the first fault to ground will not draw enough current to cause the overcurrent device to open. This system will reduce the stresses, voltage dips, heating effects, etc. normally associated with high short-circuit current. Referring to ...
W. Inam, K.K. Afridi and D.J. Perreault, “Variable Frequency Multiplier Technique for High Efficiency Conversion Over a Wide Operating Range,” IEEE Journal of Emerging and Selected Topics in Power Electronics , (to appear).
W. Inam, K.K. Afridi and D.J. Perreault, “Variable Frequency Multiplier Technique for High Efficiency Conversion Over a Wide Operating Range,” IEEE Journal of Emerging and Selected Topics in Power Electronics , (to appear).

... proposed to employ frequency multipliers in dc-dc converters (e.g., [11]), this is not usually done, as the output power of a frequency multiplier inverter is inherently low relative to the needed device ratings. However, here we propose using frequency multiplication as an additional operating mode ...
MAX17062 TFT-LCD Step-Up DC-DC Converter General Description Features
MAX17062 TFT-LCD Step-Up DC-DC Converter General Description Features

... The minimum inductance value, peak current rating, and series resistance are factors to consider when selecting the inductor. These factors influence the converter’s efficiency, maximum output load capability, transientresponse time, and output-voltage ripple. Physical size and cost are also importa ...
Tempus JPCR 530194-2012 Energy Efficiency, Renewable Energy Sources and Environmental
Tempus JPCR 530194-2012 Energy Efficiency, Renewable Energy Sources and Environmental

op-amp parameters
op-amp parameters

... The maximum rate of change of the output voltage in response to a step input voltage is the slew rate of an op-amp. The slew rate is dependent upon the high-frequency response of the amplifier stages within the op- amp. Slew rate is measured with an op-amp connected as shown in Figure 6(a). This par ...
Lecture Notes.
Lecture Notes.

... • American tube companies – Arc Energy 10 joules – 1000 Amps/msec max. rate of rise – Remove current in less than 10msec ...
MOS Charge Pumps for Low-Voltage Operation - Solid
MOS Charge Pumps for Low-Voltage Operation - Solid

... HARGE pumps are circuits that can pump charge upward to produce voltages higher than the regular supply voltage. Charge pumps have been used in the nonvolatile memories, such as EEPROM and Flash memories, for the programming of the floating-gate devices [1], [2]. They can also be used in the low-sup ...
Joule thief - getting power from dead batteries
Joule thief - getting power from dead batteries

... number of transistors have been reported to work: 2N4401, NET123AP, BC547B, 2SC2500, BC337, PN2222, to name just a few. LED - One leg of the LED is longer than the other leg. Use this to determine which one goes where. See the diagram above. Resistor - The diagram says use a 1 kilo ohm resistor but ...
B  2.5 A Output Current, IGBT Drive Optocoupler with Desaturation Detection
B 2.5 A Output Current, IGBT Drive Optocoupler with Desaturation Detection

... The internal gate driving circuitry of FOD8316 can be used with either a single positive power supply, VDD2, or a dual positive and negative supply, VDD2 and VSS. The output driver stage, VO, is made up of a pair of PMOS and NMOS transistors, which facilitates close to rail-to-rail output swing. Thi ...
Solar Energy Glossary of Terms
Solar Energy Glossary of Terms

... Charge Rate: The current applied to a cell or battery to restore its available capacity. This  rate is commonly normalized by a charge control device with respect to the rated capacity of  the cell or battery.  ...
FAN23SV60 TinyBuck™ 10 A Integrated Synchronous Buck Regulator F AN2
FAN23SV60 TinyBuck™ 10 A Integrated Synchronous Buck Regulator F AN2

... ground to create an Under-Voltage Lockout (UVLO) based on the PVIN/VIN supply, or connected to PVIN/VIN through a single resistor to auto-enable while operating within the EN pin internal clamp current sink ...
MAX9111/MAX9113 Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 General Description
MAX9111/MAX9113 Single/Dual LVDS Line Receivers with Ultra-Low Pulse Skew in SOT23 General Description

... these pins against ESD of ±11kV without damage. The ESD structures withstand high ESD in all states: normal operation, shutdown, and powered down. ESD protection can be tested in various ways; the receiver inputs of this product family are characterized for protection to the limit of ±11kV using the ...
Bi-directional level shifter for I²C-bus and other systems.
Bi-directional level shifter for I²C-bus and other systems.

... If VDD2 is switched-off then T3 and T4 becomes not conducting and the “Higher voltage” section is isolated from the other part of the bus system. The pull-up resistors Rp to VDD3 are not necessary for the proper operation and may have a high resistance value, they can be added to prevent the MOS-FET ...
FAN6747WL Highly Integrated Green-Mode PWM Controller FAN6747WL — Highly Integra
FAN6747WL Highly Integrated Green-Mode PWM Controller FAN6747WL — Highly Integra

... the first counter 15ms and checks if VDD is below 10V; if it is, the PWM latches off for SCP. If VDD is higher than 10V; it keeps counting to 215ms, then the PWM latches off for OCP. FAN6747WL also integrates a frequency-hopping function that helps reduce EMI emission of a power supply with minimum ...
Practical Considerations in Current Mode Power
Practical Considerations in Current Mode Power

... III. SYNCHRONIZATION Power supplies have historically been thought of as “black boxes,” an off-the-shelf commodity by most end users. Their primary function is to generate a precise voltage, independent of load current or input voltage variations, at the lowest possible cost. In addition, end users ...
Advanced Applications of Current Conveyors: A Tutorial
Advanced Applications of Current Conveyors: A Tutorial

... [4]. A CC can have two or more output ports, which can independently sink or source currents. Such a CC is known as multi port CC. A multi port CC with both types of output ports (positive as well as negative), is known as composite port CCII. Quiescent current based classification Similar to the cl ...
< 1 ... 462 463 464 465 466 467 468 469 470 ... 1368 >

History of electric power transmission



The history of the technology of moving electricity far from where it was generated dates from the late 19th century. This includes movement of electricity in bulk (formally referred to as ""transmission""), and the delivery of electricity (""distribution"") to individual customers. The distinction between the two terms did not exist in early years and were used interchangeably.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report