Boost Converter Design
... Once the MOSFET has switched on, the MOSFET presents a small dc resistance between its Drain and Source terminals. This is the MOSFETs ‘Drain Source on resistance’ or Rdson. Again, this needs to be as low as possible. Now, MOSFET manufacturers reduce the ON resistance of the MOSFET by constructing ...
... Once the MOSFET has switched on, the MOSFET presents a small dc resistance between its Drain and Source terminals. This is the MOSFETs ‘Drain Source on resistance’ or Rdson. Again, this needs to be as low as possible. Now, MOSFET manufacturers reduce the ON resistance of the MOSFET by constructing ...
ECE Laboratory Equipment Proficiency
... •Auto-range: This facility enables the correct range of the digital multimeter to be selected so that the most significant digits are shown, i.e. a four-digit DMM would automatically select an appropriate range to display 1.234 mV instead of 0.012 V. Additionally it also prevent overloading, by ensu ...
... •Auto-range: This facility enables the correct range of the digital multimeter to be selected so that the most significant digits are shown, i.e. a four-digit DMM would automatically select an appropriate range to display 1.234 mV instead of 0.012 V. Additionally it also prevent overloading, by ensu ...
07_ІМ_171_153_ЕБ - Національний авіаційний університет
... In electronic circuits, the distances and currents are very small, so why use AC? First of all, the currents and voltages in these circuits represent constantly changing phenomena, so the electrical representations, or analogs, are also constantly changing. The second reason is that radio waves (lik ...
... In electronic circuits, the distances and currents are very small, so why use AC? First of all, the currents and voltages in these circuits represent constantly changing phenomena, so the electrical representations, or analogs, are also constantly changing. The second reason is that radio waves (lik ...
5. Power supplies requirements
... The voltage rise times and fall times for the high voltage pulse must be fast enough to obtain maximum width state while attaining the 1.0 µs flat top. In any case, the pulse width at 75 % must not be more than 3.5 µs. The voltage must be tuneable between 50 and 100 % of the maximum voltage. ...
... The voltage rise times and fall times for the high voltage pulse must be fast enough to obtain maximum width state while attaining the 1.0 µs flat top. In any case, the pulse width at 75 % must not be more than 3.5 µs. The voltage must be tuneable between 50 and 100 % of the maximum voltage. ...
View/Download-PDF - International Journal of Computer Science
... electromagnet poles and hence the stator attracts the rotor. This is the fundamental action used in synchronous permanent magnet motors. . These offers a good compromise between control and the number of power electronic devices is required to control the stator currents. This makes the control of B ...
... electromagnet poles and hence the stator attracts the rotor. This is the fundamental action used in synchronous permanent magnet motors. . These offers a good compromise between control and the number of power electronic devices is required to control the stator currents. This makes the control of B ...
P85327C
... WARNING: A small possibility exists that the use of multiple strobes within a person’s field of view, under certain circumstances, might induce a photo-sensitive response in persons with epilepsy. Strobe reflections in a glass or mirrored surface might also induce such a response. To minimize this p ...
... WARNING: A small possibility exists that the use of multiple strobes within a person’s field of view, under certain circumstances, might induce a photo-sensitive response in persons with epilepsy. Strobe reflections in a glass or mirrored surface might also induce such a response. To minimize this p ...
Shielding and Grounding
... All power supply returns (reference common) should be tied to the panel using low impedance ground straps. Silver tinned flat copper braid at least 0.25 inches (6 mm) wide is ideal for this purpose. Use of braid rather than conventional wire is more important on switching power supplies than linear ...
... All power supply returns (reference common) should be tied to the panel using low impedance ground straps. Silver tinned flat copper braid at least 0.25 inches (6 mm) wide is ideal for this purpose. Use of braid rather than conventional wire is more important on switching power supplies than linear ...
Calibration and documentation for process manufacturing:Costs
... 400/230 V with four active distributed conductors, it is advised to proceed with the direct method if the device is isolated from the ground. In all other situations, it is possible to use the alternative method (only if the electronic switch is absent), or the differential method. If the system is ...
... 400/230 V with four active distributed conductors, it is advised to proceed with the direct method if the device is isolated from the ground. In all other situations, it is possible to use the alternative method (only if the electronic switch is absent), or the differential method. If the system is ...
Application Note Designing VME Power Systems from Standard
... accepted by the DC-DC converter. An N-channel device should be chosen for low on-resistance and high power handling capability. Device selection is key as it dissipates very high instantaneous power, dropping 50V while passing several amps. Care should be taken to ensure the MOSFET stays within its ...
... accepted by the DC-DC converter. An N-channel device should be chosen for low on-resistance and high power handling capability. Device selection is key as it dissipates very high instantaneous power, dropping 50V while passing several amps. Care should be taken to ensure the MOSFET stays within its ...
the Medium Voltage Controllable Fuse Brochure
... The line-sides of the main Low Voltage breakers have potential for arc-flash energies well beyond the capabilities of any PPE. The reason for this is that the closest upstream protective device is usually a Medium Voltage fuse on the primary side of the transformer. This fuse is designed to provide ...
... The line-sides of the main Low Voltage breakers have potential for arc-flash energies well beyond the capabilities of any PPE. The reason for this is that the closest upstream protective device is usually a Medium Voltage fuse on the primary side of the transformer. This fuse is designed to provide ...
Design Solutions 8 - 2-Step Power Conversion: Portable Power for
... inductor current ramp-up and a much slower current ramp-down. The inductance value must be large enough to keep the current under control during the ramp-up. This requires a larger inductance than for operation with a low input voltage. Fast current rise and slow current decay means that the transie ...
... inductor current ramp-up and a much slower current ramp-down. The inductance value must be large enough to keep the current under control during the ramp-up. This requires a larger inductance than for operation with a low input voltage. Fast current rise and slow current decay means that the transie ...
Laboratory 7 Bipolar Transistor Biasing and Small Signal Behavior
... This is a linear relationship between VCE and IC. The load line can be superimposed on a set of VCE-IC transistor characteristics. The slope of the DC load line is -1/(RC+RE) ⎯ it intersects the horizontal axis at VCE = VCC and the vertical axis at IC = VCC/(RC + RE). A transistor amplifier is typic ...
... This is a linear relationship between VCE and IC. The load line can be superimposed on a set of VCE-IC transistor characteristics. The slope of the DC load line is -1/(RC+RE) ⎯ it intersects the horizontal axis at VCE = VCC and the vertical axis at IC = VCC/(RC + RE). A transistor amplifier is typic ...
Technical Article
... the feedback loop is a fundamental component of the converter system, so it cannot be turned off completely. The trick, then, is to design the converter in such a way that internal blocks can be shut down when not needed, but turned on and made ready extremely fast when required. In fact, this mode ...
... the feedback loop is a fundamental component of the converter system, so it cannot be turned off completely. The trick, then, is to design the converter in such a way that internal blocks can be shut down when not needed, but turned on and made ready extremely fast when required. In fact, this mode ...
Model Y5020
... instruments in the Fluke PTI product line and can be stacked with other PTI products to form a portable test system. Forced-air cooling is accomplished by a fan mounted on the rear panel. Air is pulled in through the fan, passed over the shunt, and exhausted through the rear panel. Power for the fan ...
... instruments in the Fluke PTI product line and can be stacked with other PTI products to form a portable test system. Forced-air cooling is accomplished by a fan mounted on the rear panel. Air is pulled in through the fan, passed over the shunt, and exhausted through the rear panel. Power for the fan ...
Introduction - GEOCITIES.ws
... resistor, the diode has two terminals; but unlike the resistor, which has a linear (straight-line) relationship between the current flowing through it and the voltage appearing across it, the diode has a nonlinear I-v characteristic. ...
... resistor, the diode has two terminals; but unlike the resistor, which has a linear (straight-line) relationship between the current flowing through it and the voltage appearing across it, the diode has a nonlinear I-v characteristic. ...
RA03M9595M 数据资料DataSheet下载
... 2.RA series products (RF power amplifier modules) are designed for consumer mobile communication terminals and were not specifically designed for use in other applications. In particular, while these products are highly reliable for their designed purpose, they are not manufactured under a quality a ...
... 2.RA series products (RF power amplifier modules) are designed for consumer mobile communication terminals and were not specifically designed for use in other applications. In particular, while these products are highly reliable for their designed purpose, they are not manufactured under a quality a ...
Experimental results
... D. Short circuit detection and protection-The short circuit protection was provided by desaturation detection, i.e. Collector emitter voltage sense. The desaturation detection feature and subsequent withdrawal of gate drive is the inherent feature of Powerex make M57962CL-01 IGBT gate driver. As the ...
... D. Short circuit detection and protection-The short circuit protection was provided by desaturation detection, i.e. Collector emitter voltage sense. The desaturation detection feature and subsequent withdrawal of gate drive is the inherent feature of Powerex make M57962CL-01 IGBT gate driver. As the ...
An Improved Current Mode Logic Latch
... Millimeter wave and radio frequency circuits are developing rapidly nowadays, such as frequency synthesizers and timing recovery circuits[1,2] . The high speed frequency divider plays a critical part in these circuits[3] . More importantly, because of the high frequency operation nature of the block ...
... Millimeter wave and radio frequency circuits are developing rapidly nowadays, such as frequency synthesizers and timing recovery circuits[1,2] . The high speed frequency divider plays a critical part in these circuits[3] . More importantly, because of the high frequency operation nature of the block ...
myPower ALL plus
... power-hungry portable devices, myPower ALL Plus MP3450i R2 will significantly extend the life of a range of instruments or equipment batteries— anywhere, anytime. As a UPS, the battery will provide the back-up power you need to avoid any equipment down time. myPower ALL Plus is modular, so you can a ...
... power-hungry portable devices, myPower ALL Plus MP3450i R2 will significantly extend the life of a range of instruments or equipment batteries— anywhere, anytime. As a UPS, the battery will provide the back-up power you need to avoid any equipment down time. myPower ALL Plus is modular, so you can a ...
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.