BLDC Motor Control - NXP Semiconductors
... Therefore, sensorless techniques are much more widespread today. There are two main groups for the sensorless techniques: • Those based on back EMF sensing • Low-speed techniques The sensorless techniques based on back EMF sensing are dedicated for medium (>5 percent of nominal speed) to high-speed ...
... Therefore, sensorless techniques are much more widespread today. There are two main groups for the sensorless techniques: • Those based on back EMF sensing • Low-speed techniques The sensorless techniques based on back EMF sensing are dedicated for medium (>5 percent of nominal speed) to high-speed ...
REF3240-EP 数据资料 dataSheet 下载
... Supply voltages below the specified levels can cause the REF32xx to momentarily draw currents greater than the typical quiescent current. This momentary current draw can be prevented by using a power supply with a fast rising edge and low output impedance. For optimal startup when the IN pin and ENA ...
... Supply voltages below the specified levels can cause the REF32xx to momentarily draw currents greater than the typical quiescent current. This momentary current draw can be prevented by using a power supply with a fast rising edge and low output impedance. For optimal startup when the IN pin and ENA ...
Harmonic Analysis of 230 V AC Power Supply
... Controlling and monitoring industrial system designs and their effects on utility distribution systems are a potential problem for the industrial consumer, who is responsible for complying with the IEEE 519-1992 recommended practices and procedures. Industrial facilities should include a system eval ...
... Controlling and monitoring industrial system designs and their effects on utility distribution systems are a potential problem for the industrial consumer, who is responsible for complying with the IEEE 519-1992 recommended practices and procedures. Industrial facilities should include a system eval ...
LM2940/LM2940C 1A Low Dropout Regulator
... Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics. Note 2: ...
... Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which the device functions but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics. Note 2: ...
Research of a New Line Protection Measurement and Controlling
... of new substation because they haven’t the fault and event memorizing function and communication function. So they will be certainly replaced by produces based on microcomputer. But the microcomputer based products also can’t meet the demand of new substation because their CPUs are usually slow, the ...
... of new substation because they haven’t the fault and event memorizing function and communication function. So they will be certainly replaced by produces based on microcomputer. But the microcomputer based products also can’t meet the demand of new substation because their CPUs are usually slow, the ...
Example - s3.amazonaws.com
... A wattmeter is a piece of equipment that measures average power, P, in watts. A wattmeter has connections for both current and voltage, as shown below on the left (Electric Circuits, 9th Ed., by Nilsson). Note that the positive side of the current coil and the positive side of the voltage coil are l ...
... A wattmeter is a piece of equipment that measures average power, P, in watts. A wattmeter has connections for both current and voltage, as shown below on the left (Electric Circuits, 9th Ed., by Nilsson). Note that the positive side of the current coil and the positive side of the voltage coil are l ...
Universal input voltage power supply for ESBT based breaker and
... terminated during the switching cycle. If this happens for several pulses, the feedback loop increases the error signal and produces a higher energy that is transferred to the secondary side. As a result, a higher output pulse is generated and again prematurely ended. Another disadvantage of a filte ...
... terminated during the switching cycle. If this happens for several pulses, the feedback loop increases the error signal and produces a higher energy that is transferred to the secondary side. As a result, a higher output pulse is generated and again prematurely ended. Another disadvantage of a filte ...
Glossary of Terms For the Electric Utility Industry
... A stand-alone Photovoltaic system that has no back-up generating source. The system may or may not include storage batteries. Autotransformer – A transformer in which at least two windings have a common section. They are used to either "buck" or "boost" the incoming line voltage. Auxiliary Power – T ...
... A stand-alone Photovoltaic system that has no back-up generating source. The system may or may not include storage batteries. Autotransformer – A transformer in which at least two windings have a common section. They are used to either "buck" or "boost" the incoming line voltage. Auxiliary Power – T ...
Power Tender Plus International 12 Volt Battery
... the two levels of maximum DC output current, and the wider range for AC input voltage. The software is very similar to the traditional Battery Tender Plus, and should safely charge all lead acid battery types. Always check with the battery manufacturer to get the most complete charging recommendatio ...
... the two levels of maximum DC output current, and the wider range for AC input voltage. The software is very similar to the traditional Battery Tender Plus, and should safely charge all lead acid battery types. Always check with the battery manufacturer to get the most complete charging recommendatio ...
Coordinated voltage control of a decoupled three
... voltage value on one phase (in this study phase a): this operation is expected from a standard OLTC, and the choice of selecting just one phase voltage value for the control would result in a costeffective solution for the device (since it is supposed to work with a balanced voltage triplet and it r ...
... voltage value on one phase (in this study phase a): this operation is expected from a standard OLTC, and the choice of selecting just one phase voltage value for the control would result in a costeffective solution for the device (since it is supposed to work with a balanced voltage triplet and it r ...
The Application of Jartul JT63 Series Electronic loads in ATE
... Timing test is also a difficult point of the ATE system. The traditional ATE system can achieve the timing test by using a timing acquisition card, supplemented by professional data processing. Both the hardware and software cost is very high. Jartul electronic load, built-in timing test function, c ...
... Timing test is also a difficult point of the ATE system. The traditional ATE system can achieve the timing test by using a timing acquisition card, supplemented by professional data processing. Both the hardware and software cost is very high. Jartul electronic load, built-in timing test function, c ...
Unijunction Transistor Symbol and Construction
... doping level as well as the physical dimensions of the N-type silicon channel but can be represented by RBB. If measured with an ohmmeter, this static resistance would typically measure somewhere between about 4kΩ and 10kΩ’s for most common UJT’s such as the 2N1671, 2N2646 or the 2N2647. These two s ...
... doping level as well as the physical dimensions of the N-type silicon channel but can be represented by RBB. If measured with an ohmmeter, this static resistance would typically measure somewhere between about 4kΩ and 10kΩ’s for most common UJT’s such as the 2N1671, 2N2646 or the 2N2647. These two s ...
Document
... Induction motors work because current is induced in the rotor by the changing current in the stator. This current creates a magnetic field that reacts with the moving field of the stator, which develops a torque and causes the rotor to turn. Synchronous motors have a magnet for the rotor. In small m ...
... Induction motors work because current is induced in the rotor by the changing current in the stator. This current creates a magnetic field that reacts with the moving field of the stator, which develops a torque and causes the rotor to turn. Synchronous motors have a magnet for the rotor. In small m ...
DT1140-04LP Features Mechanical Data
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
Download Industrial Shock-Block Datasheet
... Special Purpose Ground-Fault Circuit Interrupter (GFCI), Class C and Class D Industrial Shock Block (ISB) is a personnel protection device designed to meet the new requirements for special-purpose GFCIs defined by UL 943C. ISB is the first and only permanently connected Class C and Class D GFCI on t ...
... Special Purpose Ground-Fault Circuit Interrupter (GFCI), Class C and Class D Industrial Shock Block (ISB) is a personnel protection device designed to meet the new requirements for special-purpose GFCIs defined by UL 943C. ISB is the first and only permanently connected Class C and Class D GFCI on t ...
Infineon Controller Technical
... . The purpose here is to assist user’s understanding of the features available on the Chinese-made Infineon digital controller. The Infineon Micro Control Unit (MCU) is the heart of the controller printed circuit board (pcb). The MCU currently in use by the Chinese pcb vendor is the XC846 chip. The ...
... . The purpose here is to assist user’s understanding of the features available on the Chinese-made Infineon digital controller. The Infineon Micro Control Unit (MCU) is the heart of the controller printed circuit board (pcb). The MCU currently in use by the Chinese pcb vendor is the XC846 chip. The ...
Stray voltage
Stray voltage is the occurrence of electrical potential between two objects that ideally should not have any voltage difference between them. Small voltages often exist between two grounded objects in separate locations, due to normal current flow in the power system. Large voltages can appear on the enclosures of electrical equipment due to a fault in the electrical power system, such as a failure of insulation.