SG-239 Smartuner Manual
... 1971, the company has sold to the marine, military, aviation, and industrial markets worldwide. Over these years, SGC has earned an outstanding reputation for product reliability and for after sales service. The company keeps pace with equipment options, engineering developments, and design requirem ...
... 1971, the company has sold to the marine, military, aviation, and industrial markets worldwide. Over these years, SGC has earned an outstanding reputation for product reliability and for after sales service. The company keeps pace with equipment options, engineering developments, and design requirem ...
网络电视业务实现方案研究
... The miller equivalent circuit is valid as long as the conditions that existed in the network when K was determined are not changed. Miller theorem can be used to determining the input impedance and the gain of an amplifier; it cannot be applied to determine the output impedance. ...
... The miller equivalent circuit is valid as long as the conditions that existed in the network when K was determined are not changed. Miller theorem can be used to determining the input impedance and the gain of an amplifier; it cannot be applied to determine the output impedance. ...
Aalborg Universitet Voltages
... the logical NOT operator) except during dead-time when both switches are intentionally turned off for a short duration. This requirement and many operating issues of the B6 converter are presently well-understood, and hence less costly to adopt, as compared with a brand new topology. It is thus attr ...
... the logical NOT operator) except during dead-time when both switches are intentionally turned off for a short duration. This requirement and many operating issues of the B6 converter are presently well-understood, and hence less costly to adopt, as compared with a brand new topology. It is thus attr ...
50 MHz to 2200 MHz Quadrature Modulator ADL5385
... designed for use from 50 MHz to 2200 MHz. Its excellent phase accuracy and amplitude balance enable both high performance intermediate frequency (IF) and direct radio frequency (RF) modulation for communication systems. The AD5385 takes the signals from two differential baseband inputs and modulates ...
... designed for use from 50 MHz to 2200 MHz. Its excellent phase accuracy and amplitude balance enable both high performance intermediate frequency (IF) and direct radio frequency (RF) modulation for communication systems. The AD5385 takes the signals from two differential baseband inputs and modulates ...
Optimal design of switched reluctance motors
... induction motors driven from electronic inverters. If the current waveform must be controlled to follow a sinusoidal function to eliminate torque ripple in the induction motor, then it can hardly be held against the switched reluctance motor that it too requires current waveshaping for the same purp ...
... induction motors driven from electronic inverters. If the current waveform must be controlled to follow a sinusoidal function to eliminate torque ripple in the induction motor, then it can hardly be held against the switched reluctance motor that it too requires current waveshaping for the same purp ...
chapter #4 - oscillator
... Since there is a loss of about 1/3 of the signal in the positive feedback loop, the voltage-divider ratio must be adjusted such that a positive feedback loop gain of 1 is produced. This requires a closed-loop gain of 3. The ratio of R1 and R2 can be set to achieve this. ...
... Since there is a loss of about 1/3 of the signal in the positive feedback loop, the voltage-divider ratio must be adjusted such that a positive feedback loop gain of 1 is produced. This requires a closed-loop gain of 3. The ratio of R1 and R2 can be set to achieve this. ...
NCP1351ADAPGEVB NCP1351 57 W Adapter Evaluation Board User's Manual
... Overpower Protection Level ...
... Overpower Protection Level ...
SKELETON - Docbox
... In addition, UWB devices with an operating bandwidth of several hundreds of MHz up to several GHz allow tens of centimeter-level accuracy real time localization and positioning even in the presence of severe multipath effects caused by walls, furniture or any other harsh radio propagation environmen ...
... In addition, UWB devices with an operating bandwidth of several hundreds of MHz up to several GHz allow tens of centimeter-level accuracy real time localization and positioning even in the presence of severe multipath effects caused by walls, furniture or any other harsh radio propagation environmen ...
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.