Synchronous Motors
... round the stator at synchronous speed Ns(= 120 f/P). The direct (or zero frequency) current sets up a two-pole field which is stationary so long as the rotor is not turning. Thus, we have a situation in which there exists a pair of revolving armature poles (i.e., NS - SS) and a pair of stationary ro ...
... round the stator at synchronous speed Ns(= 120 f/P). The direct (or zero frequency) current sets up a two-pole field which is stationary so long as the rotor is not turning. Thus, we have a situation in which there exists a pair of revolving armature poles (i.e., NS - SS) and a pair of stationary ro ...
Calculating Total Power Requirements for Data Centers
... Support a Data Center Most data centers are part of a larger building. The steps in determining the electrical capacity described below will assist in estimating the capacity required for that portion of the building dedicated to the data center or data room. The difference between the steady state ...
... Support a Data Center Most data centers are part of a larger building. The steps in determining the electrical capacity described below will assist in estimating the capacity required for that portion of the building dedicated to the data center or data room. The difference between the steady state ...
Aalborg Universitet Electronics-Based Power Systems
... stabilizing the systems [10]-[14]. Passive dampers are, in general, robust, but they incur additional power losses [10], [11]. Lower-loss active dampers are therefore preferred, which however require the use of the high-bandwidth converters for suppressing those high-frequency resonances burdening t ...
... stabilizing the systems [10]-[14]. Passive dampers are, in general, robust, but they incur additional power losses [10], [11]. Lower-loss active dampers are therefore preferred, which however require the use of the high-bandwidth converters for suppressing those high-frequency resonances burdening t ...
Wireless power and data transfer
... interface [6]-[11], the WPT technique enhances the devices safety and decreases the connectivity complexity. For most applications, reliable communication between the primary side and the pickup side plays an essential role in a well-designed WPT system. For instance, the functions such as output vo ...
... interface [6]-[11], the WPT technique enhances the devices safety and decreases the connectivity complexity. For most applications, reliable communication between the primary side and the pickup side plays an essential role in a well-designed WPT system. For instance, the functions such as output vo ...
NCV8851BDBGEVB NCV8851B Automotive Grade Synchronous Buck Controller Evaluation Board
... “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ...
... “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ...
NB4N441 - Serial Input PLL Clock Synthesizer
... with a synthesizer over a fixed frequency oscillator. The jitter data presented should provide users with enough information to determine the effect on their overall timing budget. The jitter performance meets the needs of most system designs while adding the flexibility of frequency margining and f ...
... with a synthesizer over a fixed frequency oscillator. The jitter data presented should provide users with enough information to determine the effect on their overall timing budget. The jitter performance meets the needs of most system designs while adding the flexibility of frequency margining and f ...
FAN6862R / FAN6862L Highly Integrated Green-Mode PWM Controller
... During this blanking period (360ns), the PWM comparator is disabled and cannot switch off the gate driver. Thus, RC filter with a small RC time constant is enough for current sensing. ...
... During this blanking period (360ns), the PWM comparator is disabled and cannot switch off the gate driver. Thus, RC filter with a small RC time constant is enough for current sensing. ...
TPA2000D1 数据资料 dataSheet 下载
... The TPA2000D1 is a 2-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at least 4-Ω impedance. The amplifier uses TI's third generation modulation technique, which results in improved efficiency and SNR. It also allows the device to be connected directly to the speaker ...
... The TPA2000D1 is a 2-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at least 4-Ω impedance. The amplifier uses TI's third generation modulation technique, which results in improved efficiency and SNR. It also allows the device to be connected directly to the speaker ...
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.