best practice manual-electric motors
... As magnetic flux cuts across the rotor bars, a voltage is induced in them, much as a voltage is induced in the secondary winding of a transformer. Because the rotor bars are part of a closed circuit (including the end rings), a current circulates in them. The rotor current in turn produces a magneti ...
... As magnetic flux cuts across the rotor bars, a voltage is induced in them, much as a voltage is induced in the secondary winding of a transformer. Because the rotor bars are part of a closed circuit (including the end rings), a current circulates in them. The rotor current in turn produces a magneti ...
TPS54160-Q1 数据资料 dataSheet 下载
... The TPS54160 device is a 60-V 1.5-A step-down (buck) regulator with an integrated high-side n-channel MOSFET. To improve performance during line and load transients the device implements a constant frequency, current mode control which reduces output capacitance and simplifies external frequency com ...
... The TPS54160 device is a 60-V 1.5-A step-down (buck) regulator with an integrated high-side n-channel MOSFET. To improve performance during line and load transients the device implements a constant frequency, current mode control which reduces output capacitance and simplifies external frequency com ...
Bidirectional VF Control of Single and 3
... programmable dead band. Programming is greatly simplified using PIC18FXX31 devices, because it reduces the task of generating the software PWMs, which takes most of the processor resource on a PIC16F72. The source code included with this application note (see Appendix A: “Source Code”) also includes ...
... programmable dead band. Programming is greatly simplified using PIC18FXX31 devices, because it reduces the task of generating the software PWMs, which takes most of the processor resource on a PIC16F72. The source code included with this application note (see Appendix A: “Source Code”) also includes ...
Constant-Frequency, Current-Mode Step-Up DC/DC Controller ADP1621
... MOSFETs), and can be chosen for various switching frequencies and input and output voltages. The ADP1621 supply input voltage range is 2.9 V to 5.5 V, although higher input voltages are possible with the use of a small-signal ...
... MOSFETs), and can be chosen for various switching frequencies and input and output voltages. The ADP1621 supply input voltage range is 2.9 V to 5.5 V, although higher input voltages are possible with the use of a small-signal ...
TS4621ML - STMicroelectronics
... driver dedicated to high-performance audio, highpower efficiency and space-constrained applications. It is based on the core technology of a low power dissipation amplifier combined with a highefficiency step-down DC/DC converter for supplying this amplifier. When powered by a battery, the internal ...
... driver dedicated to high-performance audio, highpower efficiency and space-constrained applications. It is based on the core technology of a low power dissipation amplifier combined with a highefficiency step-down DC/DC converter for supplying this amplifier. When powered by a battery, the internal ...
Emergency Voltage Stability Controls: An Overview
... Operator (TSO) to decrease the posted available transfer capabilities, to reschedule generation, to request some units to be kept in operation for voltage support and, in the last resort, to shed load. Of course, any of these actions has a nonnegligible cost. Furthermore, in the prevailing open mark ...
... Operator (TSO) to decrease the posted available transfer capabilities, to reschedule generation, to request some units to be kept in operation for voltage support and, in the last resort, to shed load. Of course, any of these actions has a nonnegligible cost. Furthermore, in the prevailing open mark ...
IF3415111540
... than 80%. A swell can result from a single line-toground fault that raises the voltage on the other two phases. It can also result from dropping a large load or energizing a capacitor bank. 1.2.5: Interruption: Ninety percent of the faults on overhead distribution lines are of a temporary nature (Fi ...
... than 80%. A swell can result from a single line-toground fault that raises the voltage on the other two phases. It can also result from dropping a large load or energizing a capacitor bank. 1.2.5: Interruption: Ninety percent of the faults on overhead distribution lines are of a temporary nature (Fi ...
A 0.8V 5.9GHz WIDE TUNING RANGE CMOS VCO USING
... Due to the large parasitic capacitance of bulk CMOS technology, integrated LC oscillators suffer from a small frequency tuning range. This problem is even worse when the supply voltage is lowered due to technology scaling. Accumulation MOS (AMOS) varactors have been a popular choice when the tuning ...
... Due to the large parasitic capacitance of bulk CMOS technology, integrated LC oscillators suffer from a small frequency tuning range. This problem is even worse when the supply voltage is lowered due to technology scaling. Accumulation MOS (AMOS) varactors have been a popular choice when the tuning ...
Investment and Licensing Opportunities now available.
... Unlike the VFD, where the electronic package generally has many sizes throughout the entire hp range and spare parts inventory becomes an issue, ALL Coyote PAYBACK® drives use the same spare parts for ALL drive horsepower sizes, effectively reducing inventory requirements: (a user field replaceable ...
... Unlike the VFD, where the electronic package generally has many sizes throughout the entire hp range and spare parts inventory becomes an issue, ALL Coyote PAYBACK® drives use the same spare parts for ALL drive horsepower sizes, effectively reducing inventory requirements: (a user field replaceable ...
c-14-deee-5th-sem
... 4 Refrigerator, Air conditioner and Auto Electric CircuitsBlock diagram and Electric circuit of Refrigerator - function of each componentBlock diagram and electric circuit of Air conditioner- function of each componentElectrical circuit diagram of Lighting, Ignition, self starting and Battery chargi ...
... 4 Refrigerator, Air conditioner and Auto Electric CircuitsBlock diagram and Electric circuit of Refrigerator - function of each componentBlock diagram and electric circuit of Air conditioner- function of each componentElectrical circuit diagram of Lighting, Ignition, self starting and Battery chargi ...
Efficient and Sensitive Capacitive Readout of Nanomechanical Resonator Arrays Patrick A. Truitt,
... (b) SEM image of the sample used for room temperature measurements. The doubly clamped beam has dimensions 14 µm × 200 nm × 205 nm (l × w × t) with an 80 nm thick aluminum film on top of a 125 nm thick silicon nitride layer. The gap between the beam and gate is d )130 nm. (c) Equivalent electromecha ...
... (b) SEM image of the sample used for room temperature measurements. The doubly clamped beam has dimensions 14 µm × 200 nm × 205 nm (l × w × t) with an 80 nm thick aluminum film on top of a 125 nm thick silicon nitride layer. The gap between the beam and gate is d )130 nm. (c) Equivalent electromecha ...
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.