application guideline for electric motor drive equipment for natural
... The following guideline addresses the need for practical guidance on electric motor drives for gas compressors. The guideline is directed to issues which are not addressed in detail by the existing Institute of Electrical and Electronics Engineers (IEEE) electric motor standards or American Petroleu ...
... The following guideline addresses the need for practical guidance on electric motor drives for gas compressors. The guideline is directed to issues which are not addressed in detail by the existing Institute of Electrical and Electronics Engineers (IEEE) electric motor standards or American Petroleu ...
Analog integrated circuit design in ultra
... oxide thicknesses are less than 3 nm, this type of design has been threatened by the direct tunneling of carriers though the gate oxide. This type of tunneling, which increases exponentially with decreasing oxide thickness, is a source of MOSFET gate current. Its existence invalidates the simplifyin ...
... oxide thicknesses are less than 3 nm, this type of design has been threatened by the direct tunneling of carriers though the gate oxide. This type of tunneling, which increases exponentially with decreasing oxide thickness, is a source of MOSFET gate current. Its existence invalidates the simplifyin ...
IEEE Draft Guide for the Specification of Fixed
... This document is an unapproved draft of a proposed IEEE Standard. As such, this document is subject to change. USE AT YOUR OWN RISK! Because this is an unapproved draft, this document must not be utilized for any conformance/compliance purposes. Permission is hereby granted for IEEE Standards Commit ...
... This document is an unapproved draft of a proposed IEEE Standard. As such, this document is subject to change. USE AT YOUR OWN RISK! Because this is an unapproved draft, this document must not be utilized for any conformance/compliance purposes. Permission is hereby granted for IEEE Standards Commit ...
transformer loss compensation for metermen
... Transformer losses can be viewed as the power consumed (used) by the transformer when performing work. The harder the transformer works, the more power consumed by the transformer and the larger the losses. The transformer losses can be looked at as if the transformer was a variable load connected t ...
... Transformer losses can be viewed as the power consumed (used) by the transformer when performing work. The harder the transformer works, the more power consumed by the transformer and the larger the losses. The transformer losses can be looked at as if the transformer was a variable load connected t ...
3000 SERIES Load Banks User Manual
... is essential that the generator be capable of operating effectively at its maximum rated output when it is required. Unfortunately, it is not so easy to be absolutely sure that this will be the case. Many generating sets operate at a fraction of their rated output for a large proportion of the time, ...
... is essential that the generator be capable of operating effectively at its maximum rated output when it is required. Unfortunately, it is not so easy to be absolutely sure that this will be the case. Many generating sets operate at a fraction of their rated output for a large proportion of the time, ...
MAX705–MAX708/MAX813L Low-Cost, µP Supervisory Circuits _______________General Description
... ratio appropriately. If required, add hysteresis by connecting a resistor (with a value approximately 10 times the sum of the two resistors in the potential divider network) between PFI and PFO. A capacitor between PFI and GND will reduce the power-fail circuit’s sensitivity to high-frequency noise ...
... ratio appropriately. If required, add hysteresis by connecting a resistor (with a value approximately 10 times the sum of the two resistors in the potential divider network) between PFI and PFO. A capacitor between PFI and GND will reduce the power-fail circuit’s sensitivity to high-frequency noise ...
please note that catalog is being updated!
... The CXM systems are 19" rack mounted chassis, and are built as either Mainframes or Expansion Chassis. They are designed to hold CXM Series Microwave Switches in configurations specified by the user. All chassis have front panel LEDs showing switch point status. RF connectors are typically mounted o ...
... The CXM systems are 19" rack mounted chassis, and are built as either Mainframes or Expansion Chassis. They are designed to hold CXM Series Microwave Switches in configurations specified by the user. All chassis have front panel LEDs showing switch point status. RF connectors are typically mounted o ...
MAX9316A 1:5 Differential (LV)PECL/(LV)ECL/ HSTL Clock and Data Driver General Description
... input signal to CLK. Similarly, an inverting configuration is obtained by connecting VBB to CLK and connecting the single-ended input to CLK. With a differential input configured as single ended (using VBB), the singleended input can be driven to VCC and VEE or with a single-ended (LV)PECL/(LV)ECL s ...
... input signal to CLK. Similarly, an inverting configuration is obtained by connecting VBB to CLK and connecting the single-ended input to CLK. With a differential input configured as single ended (using VBB), the singleended input can be driven to VCC and VEE or with a single-ended (LV)PECL/(LV)ECL s ...
ADM6821-25 - Analog Devices
... reduces the effect of the large input current. When WDI is unconnected, a window comparator disconnects the watchdog timer from the reset output circuitry so that reset is not asserted when the watchdog timer times out. ...
... reduces the effect of the large input current. When WDI is unconnected, a window comparator disconnects the watchdog timer from the reset output circuitry so that reset is not asserted when the watchdog timer times out. ...
MAX6391/MAX6392 Dual-Voltage µP Supervisory Circuits General Description Features
... circuits provide sequenced logic reset outputs for multicomponent or dual-voltage systems. Each device can monitor two supply voltages and time-sequence two reset outputs to control the order in which system components are turned on and off. The MAX6391/MAX6392 increase system reliability and reduce ...
... circuits provide sequenced logic reset outputs for multicomponent or dual-voltage systems. Each device can monitor two supply voltages and time-sequence two reset outputs to control the order in which system components are turned on and off. The MAX6391/MAX6392 increase system reliability and reduce ...
MAX811/MAX812 4-Pin µP Voltage Monitors with Manual Reset Input ________________General Description
... In addition to issuing a reset to the µP during power-up, power-down, and brownout conditions, the MAX811/ MAX812 are relatively immune to short duration negative-going VCC transients (glitches). Figure 1 shows typical transient durations vs. reset comparator overdrive, for which the MAX811/MAX812 d ...
... In addition to issuing a reset to the µP during power-up, power-down, and brownout conditions, the MAX811/ MAX812 are relatively immune to short duration negative-going VCC transients (glitches). Figure 1 shows typical transient durations vs. reset comparator overdrive, for which the MAX811/MAX812 d ...
Oscillators
... desired frequency and waveshape. • To test performance of electronic circuits, it is called signal generator. • It can produce square, pulse, triangular, or sawtooth waveshape. ...
... desired frequency and waveshape. • To test performance of electronic circuits, it is called signal generator. • It can produce square, pulse, triangular, or sawtooth waveshape. ...
Intel® Core™2 Duo Processors and Intel® Core™2 Extreme
... processorfinder.intel.com or contact your Intel representative for more information. Intel® Virtualization Technology requires a computer system with an enabled Intel® processor, BIOS, virtual machine monitor (VMM) and, for some uses, certain platform software enabled for it. Functionality, performa ...
... processorfinder.intel.com or contact your Intel representative for more information. Intel® Virtualization Technology requires a computer system with an enabled Intel® processor, BIOS, virtual machine monitor (VMM) and, for some uses, certain platform software enabled for it. Functionality, performa ...
IGLOO Icicle Evaluation Kit User`s Guide
... It can be seen that R20 in the circuit has a 5 kΩ value, which owing to the fact that the DIV pin is connected to ground will give an fOSC of 20 MHz on this board. Having a resistor-set oscillator makes changing the frequency a low-cost and flexible option for the end-user. It should be noted that l ...
... It can be seen that R20 in the circuit has a 5 kΩ value, which owing to the fact that the DIV pin is connected to ground will give an fOSC of 20 MHz on this board. Having a resistor-set oscillator makes changing the frequency a low-cost and flexible option for the end-user. It should be noted that l ...
Cooling and Self-Excitation of a One-Electron
... feedback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Cyclotron response with direct axial self-excitation. The large shift of ∼ 85 MHz is due to the large axial amplitude. The dashed lines show the expected 68% confidence region for the data. . . . . . . . . . . . . 6.3 C ...
... feedback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.2 Cyclotron response with direct axial self-excitation. The large shift of ∼ 85 MHz is due to the large axial amplitude. The dashed lines show the expected 68% confidence region for the data. . . . . . . . . . . . . 6.3 C ...
Coordinated Facility Protection - West Australian Power Protection
... faults on transmission lines. It is important to note that lightning does not need to directly strike a power line for such damage to occur; a strike several hundred meters away can induce large damaging transients, even to underground cables. It is estimated that 70 to 85% of all transients are gen ...
... faults on transmission lines. It is important to note that lightning does not need to directly strike a power line for such damage to occur; a strike several hundred meters away can induce large damaging transients, even to underground cables. It is estimated that 70 to 85% of all transients are gen ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.