Synthesis of Input-Rectifierless AC/DC Converters
... C/DC converters without input rectifiers have received some attention because of their relative advantages in eliminating power loss in rectifiers and reducing harmonic distortions. In airborne applications where the mains frequency is as high as several hundreds hertz, the phase-lead effect of the ...
... C/DC converters without input rectifiers have received some attention because of their relative advantages in eliminating power loss in rectifiers and reducing harmonic distortions. In airborne applications where the mains frequency is as high as several hundreds hertz, the phase-lead effect of the ...
Power Quality Issues, Disturbance Sources, Financial Impacts
... occurring voltage dips and therefore improving the overall process performance. It is basically the same as the ITI Curve but specifies an improved ride through requirement down to 50% retained voltage for the first 200 msec. Many short voltage dips are covered by this additional requirement. IEC 61 ...
... occurring voltage dips and therefore improving the overall process performance. It is basically the same as the ITI Curve but specifies an improved ride through requirement down to 50% retained voltage for the first 200 msec. Many short voltage dips are covered by this additional requirement. IEC 61 ...
1.3 Historical View of Microwave Transistors
... • The advances in CMOS processing, continuous scaling of gate length, progress in SOI (silicon on insulator) technology, and development of Si LDMOSFETs (laterally diffused MOSFET) suitability of MOSFETs and CMOS for microwave applications • The SOI concept seems to be more promising because of th ...
... • The advances in CMOS processing, continuous scaling of gate length, progress in SOI (silicon on insulator) technology, and development of Si LDMOSFETs (laterally diffused MOSFET) suitability of MOSFETs and CMOS for microwave applications • The SOI concept seems to be more promising because of th ...
Control of a 3-phase 4-leg active power filter under non
... The neutral reference current is determined as Eq. (11). 5. The proposed control algorithm The p–q theory is suitable for ideal 3-phase systems but is inadequate under non-ideal mains voltage cases. In fact, under non-ideal mains voltage conditions, the sum of components (v2α + v2β ) will not be con ...
... The neutral reference current is determined as Eq. (11). 5. The proposed control algorithm The p–q theory is suitable for ideal 3-phase systems but is inadequate under non-ideal mains voltage cases. In fact, under non-ideal mains voltage conditions, the sum of components (v2α + v2β ) will not be con ...
Gary W. Chang - Working Group
... harmonic sources with comparable sizes distributed across the systems. Examples are the official electrical systems where there are multiple harmonic producing PCs and the extensive use of adjustable speed drives (ASDs) in industrial distribution systems. There are two unique issues when conducting ...
... harmonic sources with comparable sizes distributed across the systems. Examples are the official electrical systems where there are multiple harmonic producing PCs and the extensive use of adjustable speed drives (ASDs) in industrial distribution systems. There are two unique issues when conducting ...
ITE_PC_v40_Chapter1
... LED indicators that are mounted on the front of the case can tell you if the system is receiving power, when the hard drive is being used, and when the computer is on standby or sleeping. All cases have a vent on the power supply. Some cases have more vents to dissipate an unusual amount of heat. © ...
... LED indicators that are mounted on the front of the case can tell you if the system is receiving power, when the hard drive is being used, and when the computer is on standby or sleeping. All cases have a vent on the power supply. Some cases have more vents to dissipate an unusual amount of heat. © ...
Effect and Utilization of Common Source Inductance in Synchronous
... driver is less important here for sync FET. For sync FET, its gate source capacitance is normally very big. This gives us opportunity to use self-driven for sync BUCK topology as shown in Fig.10. During turn on of control FET Q1, common source inductance will turn off sync FET Q2, and then big Cgs w ...
... driver is less important here for sync FET. For sync FET, its gate source capacitance is normally very big. This gives us opportunity to use self-driven for sync BUCK topology as shown in Fig.10. During turn on of control FET Q1, common source inductance will turn off sync FET Q2, and then big Cgs w ...
Pan20051222,Utilization of the IEEE802.11 Power Save Mode with
... Queuing delay (dqueue) : Affected by DTIM period , multicast frame received before paging request , wireless delay ...
... Queuing delay (dqueue) : Affected by DTIM period , multicast frame received before paging request , wireless delay ...
TPS62065x 3-MHz 2A step down converter in a 2x2 SON package
... The MODE pin allows mode selection between forced PWM mode and power save mode. Connecting this pin to GND enables the power save mode with automatic transition between PWM and PFM mode. Pulling the MODE pin high forces the converter to operate in fixed frequency PWM mode even at light load currents ...
... The MODE pin allows mode selection between forced PWM mode and power save mode. Connecting this pin to GND enables the power save mode with automatic transition between PWM and PFM mode. Pulling the MODE pin high forces the converter to operate in fixed frequency PWM mode even at light load currents ...
High Performance Silicon Carbide Power Packaging—Past Trends
... ranging up to tens of kHz. Since most commercially available silicon power modules are well within this specification, switching transients resulting from the parasitic inductance of a wire bond are still within tolerable limits. However, the situation is very different with WBG devices which have s ...
... ranging up to tens of kHz. Since most commercially available silicon power modules are well within this specification, switching transients resulting from the parasitic inductance of a wire bond are still within tolerable limits. However, the situation is very different with WBG devices which have s ...
ch5_DATALINK_0708
... redundant, alternative paths from source to dest (example : fully redundant versus single link/node failures) ...
... redundant, alternative paths from source to dest (example : fully redundant versus single link/node failures) ...
How to connect an Epson POS printer with
... Important : If you are assigning a permanent IP address to the Epson printer, it is advised that dip switch 8 on the interface module by switched to off once the address has been set. Configuring the Computer (all types) Installing the Device Drivers for Windows If provided with a driver disk from B ...
... Important : If you are assigning a permanent IP address to the Epson printer, it is advised that dip switch 8 on the interface module by switched to off once the address has been set. Configuring the Computer (all types) Installing the Device Drivers for Windows If provided with a driver disk from B ...
Si4063/60 - Silicon Labs
... data stream and can be shaped by a Gaussian low-pass filter to reduce unwanted spectral content. The Si4063/60 contains a power amplifier (PA) that supports output power up to +20 dBm with very high efficiency, consuming only 70 mA at 169 MHz and 85 mA at 915 MHz. The integrated +20 dBm power amplif ...
... data stream and can be shaped by a Gaussian low-pass filter to reduce unwanted spectral content. The Si4063/60 contains a power amplifier (PA) that supports output power up to +20 dBm with very high efficiency, consuming only 70 mA at 169 MHz and 85 mA at 915 MHz. The integrated +20 dBm power amplif ...
S260-20-10
... oil to restore its dielectric strength to an acceptable level. 2. If the equipment has been in service and is being relocated, the minimum dielectric strength of the oil must be at least 22 kv. If less than 22 kv—or if the oil is contaminated with carbon sludge—replace the oil. About 35 gallons of o ...
... oil to restore its dielectric strength to an acceptable level. 2. If the equipment has been in service and is being relocated, the minimum dielectric strength of the oil must be at least 22 kv. If less than 22 kv—or if the oil is contaminated with carbon sludge—replace the oil. About 35 gallons of o ...
Operation Manual
... diagnostics. It also provides extensive monitoring and control through a menu of software commands and alarms providing access to the numerous operating parameters and features available in the unit. Access to features and M&C is provided via several methods including: Hand held terminal, RS232, RS4 ...
... diagnostics. It also provides extensive monitoring and control through a menu of software commands and alarms providing access to the numerous operating parameters and features available in the unit. Access to features and M&C is provided via several methods including: Hand held terminal, RS232, RS4 ...
Rotary Switch Basics - Electroswitch Electronic Products
... Rotary switches can be used in many applications. A rotary switch offers an easy way to switch more combinations than what is offered by other switches. It also offers the user a definite tactile feedback for position location. Rotary switches are generally more robust than other types of switches o ...
... Rotary switches can be used in many applications. A rotary switch offers an easy way to switch more combinations than what is offered by other switches. It also offers the user a definite tactile feedback for position location. Rotary switches are generally more robust than other types of switches o ...
Synthesis and Analysis of a Versatile DC-DC Converter Designed by Using
... as a driver circuit of white LEDs for display backlighting, a building block of battery management systems, and so on. For example, in mobile backlighting applications, the stepped-up voltage such as 4.75 ∼ 6.5 V (Typ. =5 V) is required to drive some LEDs at up to 25 mA. On the other hand, to extend ...
... as a driver circuit of white LEDs for display backlighting, a building block of battery management systems, and so on. For example, in mobile backlighting applications, the stepped-up voltage such as 4.75 ∼ 6.5 V (Typ. =5 V) is required to drive some LEDs at up to 25 mA. On the other hand, to extend ...
Power over Ethernet
Power over Ethernet or PoE describes any of several standardized or ad-hoc systems which pass electrical power along with data on Ethernet cabling. This allows a single cable to provide both data connection and electrical power to devices such as wireless access points or IP cameras. Unlike standards such as Universal Serial Bus which also power devices over the data cables, PoE allows long cable lengths. Power may be carried on the same conductors as the data, or it may be carried on dedicated conductors in the same cable.There are several common techniques for transmitting power over Ethernet cabling. Two of them have been standardized by IEEE 802.3. Since only two of the four pairs are needed for 10BASE-T or 100BASE-TX, power may be transmitted on the unused conductors of a cable. In the IEEE standards, this is referred to as Alternative B. Power may also be transmitted on the data conductors by applying a common-mode voltage to each pair. Because twisted-pair Ethernet uses differential signalling, this does not interfere with data transmission. The common mode voltage is easily extracted using the center tap of the standard Ethernet pulse transformer. This is similar to the phantom power technique commonly used for powering audio microphones. In the IEEE standards, this is referred to as Alternative A.In addition to standardizing existing practice for spare-pair and common-mode data pair power transmission, the IEEE PoE standards provide for signalling between the power sourcing equipment (PSE) and powered device (PD). This signaling allows the presence of a conformant device to be detected by the power source, and allows the device and source to negotiate the amount of power required or available. Up to a 25.5 watts is available for a device.