Power Quality 101
... for a given frequency, the lamp flicker became annoying and objectionable. ¾ This led to the establishment of a tolerance threshold or borderline of objection. ¾ From the electric utility’s point of view, the tolerance threshold may be used to aid in the design and operation of a power system while ...
... for a given frequency, the lamp flicker became annoying and objectionable. ¾ This led to the establishment of a tolerance threshold or borderline of objection. ¾ From the electric utility’s point of view, the tolerance threshold may be used to aid in the design and operation of a power system while ...
Multifrequency bio-impedance measurement: undersampling
... impedance measurements is, that relatively high frequency carrier/modulation frequencies are used for measurement (from fractions of kHz to tens or hundreds of MHz), but physiological modulation of the bioimpedance values is going on by relatively low frequency (0,1 to 10 Hz). So not all carrier per ...
... impedance measurements is, that relatively high frequency carrier/modulation frequencies are used for measurement (from fractions of kHz to tens or hundreds of MHz), but physiological modulation of the bioimpedance values is going on by relatively low frequency (0,1 to 10 Hz). So not all carrier per ...
W-band push–push monolithic frequency doubler in 1
... Imax is the maximum current, t0 is the length of the pulse, and T is the period corresponding to the fundamental frequency. To maximize the amplitude of the second harmonic, the conduction duty cycle for each transistor should be chosen such as t0 /T D 32%Œ9 . However, this would sacrifice the valu ...
... Imax is the maximum current, t0 is the length of the pulse, and T is the period corresponding to the fundamental frequency. To maximize the amplitude of the second harmonic, the conduction duty cycle for each transistor should be chosen such as t0 /T D 32%Œ9 . However, this would sacrifice the valu ...
SCHLUMBERGER 1260A Datasheet - Rent or Buy Quality Used
... 0.015ppm resolution, 1260 provides excellent coverage for virtually all chemical and molecular mechanisms all in a single instrument. Unbeatable accuracy With an accuracy of 0.1%, 0.1º, measurements can be made with complete confidence, and even the most subtle changes in sample behavior detected an ...
... 0.015ppm resolution, 1260 provides excellent coverage for virtually all chemical and molecular mechanisms all in a single instrument. Unbeatable accuracy With an accuracy of 0.1%, 0.1º, measurements can be made with complete confidence, and even the most subtle changes in sample behavior detected an ...
Power Converters in Accelerators
... • PSM output ripple magnitude is limited to Vdc /N and in some cases even vanishes ideally • f↑ → C↓ → lower stored energy → crowbarless operation → easier protection just by cutting off gate drive • Though output frequency is Nf, each power switch is subjected to frequency f only, so no requirement ...
... • PSM output ripple magnitude is limited to Vdc /N and in some cases even vanishes ideally • f↑ → C↓ → lower stored energy → crowbarless operation → easier protection just by cutting off gate drive • Though output frequency is Nf, each power switch is subjected to frequency f only, so no requirement ...
A 410-GHz CMOS push-push oscillator with an on
... Inductors L1 and L2, and the capacitances of the cross-coupled pair determine the oscillation frequency. At the virtual ground nodes the out-of-phase fundamental signals are attenuated, and the 2"'harmonic is extracted and radiated through the on-chip patch antenna. In the push-push oscillator, the ...
... Inductors L1 and L2, and the capacitances of the cross-coupled pair determine the oscillation frequency. At the virtual ground nodes the out-of-phase fundamental signals are attenuated, and the 2"'harmonic is extracted and radiated through the on-chip patch antenna. In the push-push oscillator, the ...
Power Systems for Aerospace, Marine and
... o Full hybrid: vehicle can drive with just batteries, engine or both – requires large and expensive lithium ion batteries o Mild hybrid: engine used for primary power, motor used for start, acceleration and regenerative braking o Soft hybrid: similar to mild hybrid but motor not used for accelerat ...
... o Full hybrid: vehicle can drive with just batteries, engine or both – requires large and expensive lithium ion batteries o Mild hybrid: engine used for primary power, motor used for start, acceleration and regenerative braking o Soft hybrid: similar to mild hybrid but motor not used for accelerat ...
UMS-400-R16-G OCTAVE BAND VOLTAGE CONTROLLED OSCILLATOR Features
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
ECE 662 - George Mason University
... low cost, light weig ht, high speed, low power operation, low noise, high frequency (up to 100 GHz) - very low output power (few mW) ...
... low cost, light weig ht, high speed, low power operation, low noise, high frequency (up to 100 GHz) - very low output power (few mW) ...
Application Note 42034 Synchronizing the ML4824 to Wide Frequency Ranges INTRODUCTION
... ee8.2 × 10 je1× 10 ja2.5fe7.5 × 10 jj − a7.5 − 2.5f ...
... ee8.2 × 10 je1× 10 ja2.5fe7.5 × 10 jj − a7.5 − 2.5f ...
Utility frequency
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency of the oscillations of alternating current (AC) in an electric power grid transmitted from a power plant to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains power around the world.During the development of commercial electric power systems in the late 19th and early 20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one over the other and no apparent desire for complete worldwide standardization.Unless specified by the manufacturer to operate on both 50 and 60 Hz, appliances may not operate efficiently or even safely if used on anything other than the intended frequency.