EVAL6235PD
... The 5 V for logic inputs and reference voltage is obtained from R1 and D2. For supply voltages higher than 20 V, R1 must be replaced with a higher value resistor. The jumpers JP1 and JP2 allow disconnecting the internal Zener diode network, in case the 5 V is provided through pin 11 of CN4 (for exam ...
... The 5 V for logic inputs and reference voltage is obtained from R1 and D2. For supply voltages higher than 20 V, R1 must be replaced with a higher value resistor. The jumpers JP1 and JP2 allow disconnecting the internal Zener diode network, in case the 5 V is provided through pin 11 of CN4 (for exam ...
SONOVISION
... Sonovision is a ruggedised, portable ultrasonic inspection system capable of simultaneous multi-channel Time-of-Flight-Diffraction (TOFD) and Pulse Echo (PE) Corrosion/Erosion Mapping capable of interfacing to a wide range of single/multi-axis manipulators including video tracking. The system comes ...
... Sonovision is a ruggedised, portable ultrasonic inspection system capable of simultaneous multi-channel Time-of-Flight-Diffraction (TOFD) and Pulse Echo (PE) Corrosion/Erosion Mapping capable of interfacing to a wide range of single/multi-axis manipulators including video tracking. The system comes ...
Partial Discharges in Electrical Insulation
... • PD only occurs where there is a gas (air, SF6, hydrogen) between the two conductors • The conductors must have a high voltage between them, creating an electric stress • If the electric stress in the gas exceeds 3 kV/mm of spacing (for most dry gases at 100 kPa), then electrons are stripped from t ...
... • PD only occurs where there is a gas (air, SF6, hydrogen) between the two conductors • The conductors must have a high voltage between them, creating an electric stress • If the electric stress in the gas exceeds 3 kV/mm of spacing (for most dry gases at 100 kPa), then electrons are stripped from t ...
generalized fryze control strategy for shunt and
... power supply. But these devices inject harmonics in distribution system. This is one of the major problems in electrical system. The various power quality disturbances are transients, interruptions, voltage sag, voltage swell, voltage collapse, harmonics etc. It has been identified that power qualit ...
... power supply. But these devices inject harmonics in distribution system. This is one of the major problems in electrical system. The various power quality disturbances are transients, interruptions, voltage sag, voltage swell, voltage collapse, harmonics etc. It has been identified that power qualit ...
one and two quadrant choppers
... converters can be also named DC voltage regulators or DC voltage variators. Most of the DC/DC converters operate in switch-mode using the PWM technique described in Lab no.4. Since this technique of conversion is based on the DC voltage chopping with a certain frequency (switching frequency), some o ...
... converters can be also named DC voltage regulators or DC voltage variators. Most of the DC/DC converters operate in switch-mode using the PWM technique described in Lab no.4. Since this technique of conversion is based on the DC voltage chopping with a certain frequency (switching frequency), some o ...
Bull Electrical.qxd
... ground connection for the input circuitry and a separate ground pin for the output stage. The printed circuit board (p.c.b.) layouts have been designed to maintain this isolation, and care should be taken to ground the signal inputs and connect the negative power supply lead to the designated points ...
... ground connection for the input circuitry and a separate ground pin for the output stage. The printed circuit board (p.c.b.) layouts have been designed to maintain this isolation, and care should be taken to ground the signal inputs and connect the negative power supply lead to the designated points ...
Pdf - Text of NPTEL IIT Video Lectures
... difference between an AC dynamo and DC dynamo is not very complex. We can always make them either as DC or as AC. However from the power plant or from the source where the electricity is generated to the place where it is being used like our houses and other offices the distances involved can be sev ...
... difference between an AC dynamo and DC dynamo is not very complex. We can always make them either as DC or as AC. However from the power plant or from the source where the electricity is generated to the place where it is being used like our houses and other offices the distances involved can be sev ...
OVERLOAD PROTECTION CKT
... have relays for their effective working. Relays are simple switches which are operated both electrically and mechanically. Relays consist of a n electromagnet and also a set of contacts. The switching mechanism is carried out with the help of the electromagnet. There are also other operating princip ...
... have relays for their effective working. Relays are simple switches which are operated both electrically and mechanically. Relays consist of a n electromagnet and also a set of contacts. The switching mechanism is carried out with the help of the electromagnet. There are also other operating princip ...
Slide 1
... Output = Input g=Input=0, NMOS is off, PMOS is on. Output=+V=1. When Input =1, Output=GND=0 ...
... Output = Input g=Input=0, NMOS is off, PMOS is on. Output=+V=1. When Input =1, Output=GND=0 ...
XTR8117 数据资料 dataSheet 下载
... Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI ...
... Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI ...
NCP1612GEVB 160-W, Wide Mains, PFC Stage Driven by the NCP1612 Evaluation Board
... One can also note that the switching frequency being less when the line current is low, the frequency is particularly low at light load, high line, CrM operation being more likely to occur at heavy load, low line. Experience shows that this behavior helps optimize the efficiency in all conditions. S ...
... One can also note that the switching frequency being less when the line current is low, the frequency is particularly low at light load, high line, CrM operation being more likely to occur at heavy load, low line. Experience shows that this behavior helps optimize the efficiency in all conditions. S ...
Power conditioning system topology for grid
... configuration is shown in Fig.1. This system consists of wind generator, fuel-cell generators and the associated power converter units. The power conditioning circuits for the fuel cells consist of DC/DC converters and inverters. The wind turbine PWM rectifier and the SOFC DC-DC converter outputs ar ...
... configuration is shown in Fig.1. This system consists of wind generator, fuel-cell generators and the associated power converter units. The power conditioning circuits for the fuel cells consist of DC/DC converters and inverters. The wind turbine PWM rectifier and the SOFC DC-DC converter outputs ar ...
Precision Low Dropout Linear Controllers (Rev. A)
... The UC2832 series of precision linear regulators include all the control functions required in the design of very low dropout linear regulators. Additionally, they feature an innovative duty-ratio current limiting technique which provides peak load capability while limiting the average power dissipa ...
... The UC2832 series of precision linear regulators include all the control functions required in the design of very low dropout linear regulators. Additionally, they feature an innovative duty-ratio current limiting technique which provides peak load capability while limiting the average power dissipa ...
2016 Specimen Paper 2 Insert
... Extract 5: Disadvantages of HVDC transmission The disadvantages of HVDC are in conversion, switching, control, availability and maintenance. The required static inverters are expensive and have limited overload capacity. At smaller transmission distances the losses in the static inverters may be big ...
... Extract 5: Disadvantages of HVDC transmission The disadvantages of HVDC are in conversion, switching, control, availability and maintenance. The required static inverters are expensive and have limited overload capacity. At smaller transmission distances the losses in the static inverters may be big ...
DN339 - An Autoranging True RMS Converter
... An Autoranging True RMS Converter – Design Note 339 Philip Karantzalis and Jim Mahoney True RMS voltage detection is most commonly required to measure complex amplitude and time varying signals, such as machine or engine vibration monitoring and complex AC power line load monitoring. Sometimes these ...
... An Autoranging True RMS Converter – Design Note 339 Philip Karantzalis and Jim Mahoney True RMS voltage detection is most commonly required to measure complex amplitude and time varying signals, such as machine or engine vibration monitoring and complex AC power line load monitoring. Sometimes these ...
LM131A/LM131, LM231A/LM231, LM331A/LM331 Precision
... is ideally suited for use in digital systems at low power supply voltages and can provide low-cost analog-to-digital conversion in microprocessor-controlled systems. And, the frequency from a battery powered voltage-to-frequency converter can be easily channeled through a simple photoisolator to pro ...
... is ideally suited for use in digital systems at low power supply voltages and can provide low-cost analog-to-digital conversion in microprocessor-controlled systems. And, the frequency from a battery powered voltage-to-frequency converter can be easily channeled through a simple photoisolator to pro ...
AP5727 BIAS POWER SUPPLY FOR OLED SUB DISPLAY AND TFT-LED
... The forward voltage drop of a Schottky diode represents the conduction loss in the diode, while the diode capacitance (CT) represents the switching loss. For diode selection, both forward voltage drop and diode capacitance need to be considered. Schottky diodes with higher current ratings usually ha ...
... The forward voltage drop of a Schottky diode represents the conduction loss in the diode, while the diode capacitance (CT) represents the switching loss. For diode selection, both forward voltage drop and diode capacitance need to be considered. Schottky diodes with higher current ratings usually ha ...
oscilloscopes in electronic instrumentation
... repulsive force is created by applying a negative voltage to the control grid (in CRT, voltages applied to various grids are stated with respect to cathode, which is taken as common point). This negative control voltage can be made variable. Deflection System: When the electron beam is accelerated i ...
... repulsive force is created by applying a negative voltage to the control grid (in CRT, voltages applied to various grids are stated with respect to cathode, which is taken as common point). This negative control voltage can be made variable. Deflection System: When the electron beam is accelerated i ...
- Emicro Technologies
... proposed damper dampens resonances at higher frequencies, whose values are dependent on interactions among multiple grid connected converters and reactive elements of the system. Its control requirements are therefore different, particularly in the low-frequency range, where the series LC-filter is ...
... proposed damper dampens resonances at higher frequencies, whose values are dependent on interactions among multiple grid connected converters and reactive elements of the system. Its control requirements are therefore different, particularly in the low-frequency range, where the series LC-filter is ...
UIG-2-NA - Universal Interface Installation Guide
... as to their function. In addition to the inputs there are four LED output drives for visual feedback of switch activity. The unit enables input controls such as partition switches and faders to be used with iCANnet systems. With configurable room join functions, just moving room partitions can open ...
... as to their function. In addition to the inputs there are four LED output drives for visual feedback of switch activity. The unit enables input controls such as partition switches and faders to be used with iCANnet systems. With configurable room join functions, just moving room partitions can open ...
A voltage reduction technique for battery-operated systems
... It can be shown that, in a first-order approximation, the ratio of the delay of a critical path to the period of a ring oscillator is a constant which depends only on the number of stages, the dimensions of the transistors, and the load capacitances. That means that a ring oscillator can be used as ...
... It can be shown that, in a first-order approximation, the ratio of the delay of a critical path to the period of a ring oscillator is a constant which depends only on the number of stages, the dimensions of the transistors, and the load capacitances. That means that a ring oscillator can be used as ...
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.