Electric Traction System.ppt
... But due to their flat speed- torque characteristics, constant speed operation, developing low starting torque, drawing high starting current, complicated speed control systems they are not suitable for electric traction work. ...
... But due to their flat speed- torque characteristics, constant speed operation, developing low starting torque, drawing high starting current, complicated speed control systems they are not suitable for electric traction work. ...
switches - (HOCL)
... switched ON, the output voltage shall increase gradually from zero to final value without any voltage over shoot. 7. The float charger circuit for lead acid battery shall be suitable for floating the battery at about 2.15 V per cell while supplying continuous load. Facility shall be provided for min ...
... switched ON, the output voltage shall increase gradually from zero to final value without any voltage over shoot. 7. The float charger circuit for lead acid battery shall be suitable for floating the battery at about 2.15 V per cell while supplying continuous load. Facility shall be provided for min ...
Dynamic Voltage and Frequency Management Based on Variable
... strategy will thus minimize the number of idle cycles (it will eliminate them if the frequency values is set continuously and the next arrival time prediction is perfect.) Unnecessary updates may give rise to two difficulties. First, extravagant frequency changes can result in wasteful voltage fluct ...
... strategy will thus minimize the number of idle cycles (it will eliminate them if the frequency values is set continuously and the next arrival time prediction is perfect.) Unnecessary updates may give rise to two difficulties. First, extravagant frequency changes can result in wasteful voltage fluct ...
General Description Features
... and H-bridge driver for isolated power-supply circuits. The device contains an on-board oscillator, protec tion circuitry, and internal MOSFETs to provide up to 300mA of current to the transformer’s primary winding. The device can be operated using the internal 425kHz oscillator, or driven by an ex ...
... and H-bridge driver for isolated power-supply circuits. The device contains an on-board oscillator, protec tion circuitry, and internal MOSFETs to provide up to 300mA of current to the transformer’s primary winding. The device can be operated using the internal 425kHz oscillator, or driven by an ex ...
GE 0106 Basic Engineering II
... A substance, which when suspended freely, points in the direction of north and south is called a MAGNET. Magnet attracts iron fillings. It is also called as permanent magnet. A current passing though a conductor (or a coil) also can produce magnetic effect and it is called as Electromagnet. A perman ...
... A substance, which when suspended freely, points in the direction of north and south is called a MAGNET. Magnet attracts iron fillings. It is also called as permanent magnet. A current passing though a conductor (or a coil) also can produce magnetic effect and it is called as Electromagnet. A perman ...
Online Thévenin Equivalent Determination Considering
... be represented by an equivalent having a single voltage source connected to a single equivalent series impedance. It should be made clear that, when applied to a power system, the equivalent source voltage and impedance will change following any change in the network. However, in the short term, a f ...
... be represented by an equivalent having a single voltage source connected to a single equivalent series impedance. It should be made clear that, when applied to a power system, the equivalent source voltage and impedance will change following any change in the network. However, in the short term, a f ...
6A, Current-Sharing Dual LDO
... thermal pad and superb thermal characteristics. Coupled with proper board layout, this package allows the LDO to continue to operate in spite of large power dissipation. Output Noise/PSRR Another benefit of using an LDO as a power supply is its ability to filter noise. The components necessary to cr ...
... thermal pad and superb thermal characteristics. Coupled with proper board layout, this package allows the LDO to continue to operate in spite of large power dissipation. Output Noise/PSRR Another benefit of using an LDO as a power supply is its ability to filter noise. The components necessary to cr ...
A Wirelessly-Powered Platform for Sensing and Computation
... Communication (NFC) standard is also a relevant point of comparison[16]. NFC uses short-range RFID-style backscatter communication to link powered devices. It does not provide any power harvesting capability. In prior work [13], the WISP team described a microcontroller powered by a long-range EPC-c ...
... Communication (NFC) standard is also a relevant point of comparison[16]. NFC uses short-range RFID-style backscatter communication to link powered devices. It does not provide any power harvesting capability. In prior work [13], the WISP team described a microcontroller powered by a long-range EPC-c ...
240V Brew Pot Boil Controller - Stir
... temperature of 212F, minus a little depending on your elevation above sea level. Because no temperature feedback is needed we do not need to use a expensive PID temperature controller. Instead, we use a continuously adjustable PWM controller (the adjustment knob) to give you full control of your bre ...
... temperature of 212F, minus a little depending on your elevation above sea level. Because no temperature feedback is needed we do not need to use a expensive PID temperature controller. Instead, we use a continuously adjustable PWM controller (the adjustment knob) to give you full control of your bre ...
99% Efficiency True-Bridgeless Totem-Pole PFC
... the MOSFET version. The inductors are built using MPP core 55439A2 from Magnetics with inductance of 1.3mH. The control algorithm is implemented on a low-cost, fixed-point 60MHz DSP controller TMS320F28027. The converter is running at a switching frequency of 50 KHz. Fig. 6 gives pictures of both pr ...
... the MOSFET version. The inductors are built using MPP core 55439A2 from Magnetics with inductance of 1.3mH. The control algorithm is implemented on a low-cost, fixed-point 60MHz DSP controller TMS320F28027. The converter is running at a switching frequency of 50 KHz. Fig. 6 gives pictures of both pr ...
• Set-Top-Box Conditional Access and Pay-per-View
... • Traditional step-up converter is replaced by an LDO regulator Greatly reduced power dissipation Fewer external components are required Better noise performance High current capability (90 mA supplied to the card) • Small format (5x5x0.8 mm) QFN32 package option • True card over-current det ...
... • Traditional step-up converter is replaced by an LDO regulator Greatly reduced power dissipation Fewer external components are required Better noise performance High current capability (90 mA supplied to the card) • Small format (5x5x0.8 mm) QFN32 package option • True card over-current det ...
Physics 251—Laboratory 3
... The digital multimeter can also be used as a voltmeter which measures the potential difference across a circuit element like a light bulb or a battery. Connect the voltmeter ACROSS the battery holder by connecting one lead from the voltmeter to one side of the battery pack and the other lead from th ...
... The digital multimeter can also be used as a voltmeter which measures the potential difference across a circuit element like a light bulb or a battery. Connect the voltmeter ACROSS the battery holder by connecting one lead from the voltmeter to one side of the battery pack and the other lead from th ...
Institutionen för systemteknik
... A measurement setup is done in the bus, described in Chapter 3, measuring important voltage levels during different circumstances, to capture the dynamics of the system. The signal to be used as a feedback signal is investigated. It is evaluated if the performance of the control system is improved ...
... A measurement setup is done in the bus, described in Chapter 3, measuring important voltage levels during different circumstances, to capture the dynamics of the system. The signal to be used as a feedback signal is investigated. It is evaluated if the performance of the control system is improved ...
LinCMOS Precision Quad Operational
... TLC27L4 and TLC27L9. The devices also exhibit low voltage single-supply operation and ultra-low power consumption, making them ideally suited for remote and inaccessible battery-powered applications. The common-mode input voltage range includes the negative rail. A wide range of packaging options is ...
... TLC27L4 and TLC27L9. The devices also exhibit low voltage single-supply operation and ultra-low power consumption, making them ideally suited for remote and inaccessible battery-powered applications. The common-mode input voltage range includes the negative rail. A wide range of packaging options is ...
AP7173 1.5A LOW DROPOUT LINEAR REGULATOR WITH PROGRAMMABLE SOFT-START
... 4. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device relia ...
... 4. Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device relia ...
eGauge Configuration Guide
... The entries in this popup-menu have the following meaning: P: Records the power calculated from one or more current/voltage-pairs. I: Records the RMS current measured by one of the connected CTs (CT1–CT12). V: Records the RMS voltage measured by one of the lines (L1–L3). F: Records the frequency mea ...
... The entries in this popup-menu have the following meaning: P: Records the power calculated from one or more current/voltage-pairs. I: Records the RMS current measured by one of the connected CTs (CT1–CT12). V: Records the RMS voltage measured by one of the lines (L1–L3). F: Records the frequency mea ...
P84517
... locating Notification Appliance Circuits (NAC) and notification appliances. Some system communication circuits and/or audio circuits, for example, may require special precautions to assure electrical noise immunity (e.g. audio crosstalk). NOTE: This equipment has been tested and found to comply with ...
... locating Notification Appliance Circuits (NAC) and notification appliances. Some system communication circuits and/or audio circuits, for example, may require special precautions to assure electrical noise immunity (e.g. audio crosstalk). NOTE: This equipment has been tested and found to comply with ...
H-bridge inverter loading analysis for an Energy Management System Metzcus, Andrew James
... awind turbine, two microturbines, and a fuel cell could be arranged. This microgrid can be connected to the main grid through the use of power electronics. ...
... awind turbine, two microturbines, and a fuel cell could be arranged. This microgrid can be connected to the main grid through the use of power electronics. ...
AN-4151 Half-Bridge LLC Resonant Converter Design Using FSFR
... illustrated in Figure 10. Figure 11 shows the waveforms of the currents in the transformer primary side and secondary side for each operation mode. Operation below the resonant frequency (case I) allows the soft commutation of the rectifier diodes in the secondary side, while the circulating current ...
... illustrated in Figure 10. Figure 11 shows the waveforms of the currents in the transformer primary side and secondary side for each operation mode. Operation below the resonant frequency (case I) allows the soft commutation of the rectifier diodes in the secondary side, while the circulating current ...
LM1971 Digitally Controlled 62 dB Audio Attenuator with
... The linearity of a µPot cannot be measured directly without a buffer because the input impedance of most measurement systems is not high enough to provide the required accuracy. The lower impedance of the measurement system would load down the output and an incorrect reading would result. To prevent ...
... The linearity of a µPot cannot be measured directly without a buffer because the input impedance of most measurement systems is not high enough to provide the required accuracy. The lower impedance of the measurement system would load down the output and an incorrect reading would result. To prevent ...
Mains electricity
Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.