VFD Fundamentals
... the base (60 Hz) speed and above (often to 90 or 120 hertz). Voltage and Frequency Relationship - When the frequency applied to an induction motor is reduced, the applied voltage must also be reduced to limit the current drawn by the motor at reduced frequencies. (The inductive reactance of an AC ma ...
... the base (60 Hz) speed and above (often to 90 or 120 hertz). Voltage and Frequency Relationship - When the frequency applied to an induction motor is reduced, the applied voltage must also be reduced to limit the current drawn by the motor at reduced frequencies. (The inductive reactance of an AC ma ...
Ohm`s Law 1
... 1. You are going to test the current passing through a set of resistors of different values. For the sake of efficiency, keep the resistors sorted and identified as you go along. Mount the resistors on a piece of paper by pushing the leads through. Decode the resistance value using the color code, a ...
... 1. You are going to test the current passing through a set of resistors of different values. For the sake of efficiency, keep the resistors sorted and identified as you go along. Mount the resistors on a piece of paper by pushing the leads through. Decode the resistance value using the color code, a ...
Electrical Transient Immunity for Power-over
... These transients are the most severe of all, in terms of peak current and duration, although they are the least severe in terms of rate of rise. They are caused by lightning strikes (direct strike or induced voltages and currents due to an indirect strike) and switching on power systems (also includ ...
... These transients are the most severe of all, in terms of peak current and duration, although they are the least severe in terms of rate of rise. They are caused by lightning strikes (direct strike or induced voltages and currents due to an indirect strike) and switching on power systems (also includ ...
How to Use the KBAP-240D as Overload and Field Loss Protection
... motor in case of field loss. The KBAP is used to monitor motor armature current, using either internal or external sensing. Since the armature will draw substantial current if the shunt field were to lose power, the KBAP can be used to sense this increased current draw, it would then turn the contro ...
... motor in case of field loss. The KBAP is used to monitor motor armature current, using either internal or external sensing. Since the armature will draw substantial current if the shunt field were to lose power, the KBAP can be used to sense this increased current draw, it would then turn the contro ...
Electricity - Kelso High School
... 4. Carry out calculations involving the relationship between resistance (R), current (I) and voltage (V). 5. State that the unit of resistance is the ohm (). 6. Give two practical uses of variable resistors. 7. State that when there is an electric current in a wire, there is an energy trans ...
... 4. Carry out calculations involving the relationship between resistance (R), current (I) and voltage (V). 5. State that the unit of resistance is the ohm (). 6. Give two practical uses of variable resistors. 7. State that when there is an electric current in a wire, there is an energy trans ...
Introduction - facstaff.bucknell.edu
... of RB should be at least 1 k or so. Again, use single resistors everywhere; use power supply voltages of ±15 V; leave RL as an open circuit; and apply the same small-amplitude sinusoidal input signal at a frequency of around 1 kHz that you used for the standard inverter. 8. Once again, place two fi ...
... of RB should be at least 1 k or so. Again, use single resistors everywhere; use power supply voltages of ±15 V; leave RL as an open circuit; and apply the same small-amplitude sinusoidal input signal at a frequency of around 1 kHz that you used for the standard inverter. 8. Once again, place two fi ...
AT-B420L
... Safety and warning notes In order to guarantee safe operation of the transducer and to be able to make proper use of all features and functions, please read these instructions thoroughly! Safe operation can only be guaranteed if the transducer is used for the purpose it has been designed for and wit ...
... Safety and warning notes In order to guarantee safe operation of the transducer and to be able to make proper use of all features and functions, please read these instructions thoroughly! Safe operation can only be guaranteed if the transducer is used for the purpose it has been designed for and wit ...
Reliability considerations for recent Infineon SiC diode releases M. Holz
... a Power Factor Correction (PFC) stage can be enhanced by 2% by replacing the conventional benchmark ultra-fast Si diode with SiC Schottky [6]. This high efficiency renders SiC diodes as optimized solutions, e.g., for high-efficiency server power supplies. In this specific application, the device is typic ...
... a Power Factor Correction (PFC) stage can be enhanced by 2% by replacing the conventional benchmark ultra-fast Si diode with SiC Schottky [6]. This high efficiency renders SiC diodes as optimized solutions, e.g., for high-efficiency server power supplies. In this specific application, the device is typic ...
IGC54T65R3QE High Speed IGBT3 Chip
... Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. The Infineon Technologies component described in this Data Sheet may be used in life-support devices or systems and/or automo ...
... Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. The Infineon Technologies component described in this Data Sheet may be used in life-support devices or systems and/or automo ...
EVBUM2156 - Power-over-Ethernet PD Interface
... copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation o ...
... copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation o ...
Electronic wattmeter
... to both the current and the voltage, thus conforming to the equation W=VA or P=VI. For AC power, current and voltage may not be in phase, owing to the delaying effects of circuit inductance or capacitance. On an ac circuit the deflection is proportional to the average instantaneous product of voltag ...
... to both the current and the voltage, thus conforming to the equation W=VA or P=VI. For AC power, current and voltage may not be in phase, owing to the delaying effects of circuit inductance or capacitance. On an ac circuit the deflection is proportional to the average instantaneous product of voltag ...
doc Midterm Winter 2012
... Establishing the op amp parameters for a 3 db bandwidth of 100 rad/s, we solve for R, assuming C is 1 uF as follows: ...
... Establishing the op amp parameters for a 3 db bandwidth of 100 rad/s, we solve for R, assuming C is 1 uF as follows: ...
TDA1574 Integrated FM tuner for radio receivers
... more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods ...
... more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... regulation. A new predictive control strategy for boost PFC is presented in this paper. Its basic idea is that all of the duty cycles required to achieve unity power factor in a half line period are generated by using predictive control. The duty cycle is determined based on the input voltage, refer ...
... regulation. A new predictive control strategy for boost PFC is presented in this paper. Its basic idea is that all of the duty cycles required to achieve unity power factor in a half line period are generated by using predictive control. The duty cycle is determined based on the input voltage, refer ...
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage
... to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability. TI war ...
... to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability. TI war ...
Analog indicators
... IP 52 case IP 00 for terminals without protection against accidental contact IP 20 for terminals protected against accidental contact ' ...
... IP 52 case IP 00 for terminals without protection against accidental contact IP 20 for terminals protected against accidental contact ' ...
Surge protector
A surge protector (or surge suppressor) is an appliance/device designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threshold. This article primarily discusses specifications and components relevant to the type of protector that diverts (shorts) a voltage spike to ground; however, there is some coverage of other methods.The terms surge protection device (SPD), or transient voltage surge suppressor (TVSS), are used to describe electrical devices typically installed in power distribution panels, process control systems, communications systems, and other heavy-duty industrial systems, for the purpose of protecting against electrical surges and spikes, including those caused by lightning. Scaled-down versions of these devices are sometimes installed in residential service entrance electrical panels, to protect equipment in a household from similar hazards.Many power strips have basic surge protection built in; these are typically clearly labeled as such. However, power strips that do not provide surge protection are sometimes erroneously referred to as ""surge protectors"".