S.C., D.M. Otten, T.A. Keim, and D.J. Perreault, “Design and Evaluation of a 42 V Automotive Alternator with Integrated Switched-Mode Rectifier,” 2007 IEEE Vehicle Power and Propulsion Conference , September 2007, pp. 250 – 258
... Conventional three-phase Lundell alternators employ a diode bridge to rectify the generated ac voltages, and regulate the output voltage via field control. By exchanging the diodes in the bottom half of the rectifier bridge for active devices such as power MOSFETs, a semi-bridge switched-mode rectif ...
... Conventional three-phase Lundell alternators employ a diode bridge to rectify the generated ac voltages, and regulate the output voltage via field control. By exchanging the diodes in the bottom half of the rectifier bridge for active devices such as power MOSFETs, a semi-bridge switched-mode rectif ...
Tips for connecting 24-volt power
... transformer be connected to earth ground. In the United States, for example: The National Electrical Code® requires (section 250.20) grounding transformers for AC systems of less than 50 volts if the primary voltage exceeds 150 volts to ground or if the main transformer supplying power to the buildi ...
... transformer be connected to earth ground. In the United States, for example: The National Electrical Code® requires (section 250.20) grounding transformers for AC systems of less than 50 volts if the primary voltage exceeds 150 volts to ground or if the main transformer supplying power to the buildi ...
Safe use of extension cords
... circuit breakers and safety switches. The current flowing will, however, still be large enough to damage equipment, cause electric shock and possibly electrocution. Voltage Drop describes the situation that occurs when the available voltage at the socket of the extension cord is less than that avail ...
... circuit breakers and safety switches. The current flowing will, however, still be large enough to damage equipment, cause electric shock and possibly electrocution. Voltage Drop describes the situation that occurs when the available voltage at the socket of the extension cord is less than that avail ...
Voltage source
... circuit). Such a theoretical device would have a zero ohm output impedance in series with the source. A real-world voltage source has a very low, but non-zero output impedance: often much less than 1 ohm. Conversely, a current source provides a constant current, as long as the load connected to the ...
... circuit). Such a theoretical device would have a zero ohm output impedance in series with the source. A real-world voltage source has a very low, but non-zero output impedance: often much less than 1 ohm. Conversely, a current source provides a constant current, as long as the load connected to the ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... Abstract: Industrial loads are mostly inductive and hence operate at low power factor. Several methods including the installation of capacitor banks are available for improving power factor in order to reduce the kilovolt ampere (kVA) demand of the load and power loss from the power supply system. H ...
... Abstract: Industrial loads are mostly inductive and hence operate at low power factor. Several methods including the installation of capacitor banks are available for improving power factor in order to reduce the kilovolt ampere (kVA) demand of the load and power loss from the power supply system. H ...
AN1722
... connected to the collectors of the Q2 and Q3 NPN power bipolar transistors. The same primary winding has a central terminal where the inductor L1 output is connected. The secondary winding terminals are connected to the loads. The third winding terminals are connected to the base of the transistors ...
... connected to the collectors of the Q2 and Q3 NPN power bipolar transistors. The same primary winding has a central terminal where the inductor L1 output is connected. The secondary winding terminals are connected to the loads. The third winding terminals are connected to the base of the transistors ...
SA-S90-24MCC - P84503
... for any other appliances, including audible signaling appliances, powered by the same source and include any required safety factors. If the peak current exceeds the power supplies’ peak capacity, the output voltage provided by the power supplies may drop below the listed voltage range of the applia ...
... for any other appliances, including audible signaling appliances, powered by the same source and include any required safety factors. If the peak current exceeds the power supplies’ peak capacity, the output voltage provided by the power supplies may drop below the listed voltage range of the applia ...
WEG launches new cost-effective variable speed drive with
... series connection of three to ten IGBT low-voltage (690 V) power modules, depending on the desired output voltage. That makes it possible to achieve voltage levels in the medium-voltage range using proven standard low-voltage components (diodes, IGBTs and plastic film capacitors) in a cost-effective ...
... series connection of three to ten IGBT low-voltage (690 V) power modules, depending on the desired output voltage. That makes it possible to achieve voltage levels in the medium-voltage range using proven standard low-voltage components (diodes, IGBTs and plastic film capacitors) in a cost-effective ...
electricity revision and questions 08
... This is the flow of charge around a circuit. It can only flow if the circuit is complete. This is a measure of the energy given to each charge as it flows through the circuit component. A source of energy to drive electrons through a circuit e.g a battery A circuit component e.g. a lamp or resistor ...
... This is the flow of charge around a circuit. It can only flow if the circuit is complete. This is a measure of the energy given to each charge as it flows through the circuit component. A source of energy to drive electrons through a circuit e.g a battery A circuit component e.g. a lamp or resistor ...
ADM5170 数据手册DataSheet 下载
... The ADM5170 has two programmable output modes which provide different output voltage levels. The low output mode meets the specifications of EIA standards RS-423A while the high output mode meets the RS-232 specifications. The high output mode provides greater output swings and is suitable for drivi ...
... The ADM5170 has two programmable output modes which provide different output voltage levels. The low output mode meets the specifications of EIA standards RS-423A while the high output mode meets the RS-232 specifications. The high output mode provides greater output swings and is suitable for drivi ...
PQ_Unit II
... The voltage reduction equals the percentage share of the generator current in the shortcircuit current. Increasing the number of substations and busbars in order to limit the number of customers, who potentially may be affected by the disturbance. Installing current-limiting reactors at strategi ...
... The voltage reduction equals the percentage share of the generator current in the shortcircuit current. Increasing the number of substations and busbars in order to limit the number of customers, who potentially may be affected by the disturbance. Installing current-limiting reactors at strategi ...
LT5503
... MODIN (Pin 4): Modulator Carrier Input Pin. This pin is internally biased and should be AC-coupled. An external matching network is required for a 50Ω source. VCCMOD (Pin 5): Power Supply Pin for the I/Q Modulator. This pin should be externally connected to the other VCC pins and decoupled with 1000 ...
... MODIN (Pin 4): Modulator Carrier Input Pin. This pin is internally biased and should be AC-coupled. An external matching network is required for a 50Ω source. VCCMOD (Pin 5): Power Supply Pin for the I/Q Modulator. This pin should be externally connected to the other VCC pins and decoupled with 1000 ...
Experiment 2: Measurements on DC circuits
... 2. Resistors in parallel. Assemble the circuit in Figure 2-2 with N =3 and the component values shown in Table 2-2. Take measurements to complete the entries corresponding to the experimental values. 3. Series-parallel combination. Assemble the circuit in Figure 2-3 with the component values shown i ...
... 2. Resistors in parallel. Assemble the circuit in Figure 2-2 with N =3 and the component values shown in Table 2-2. Take measurements to complete the entries corresponding to the experimental values. 3. Series-parallel combination. Assemble the circuit in Figure 2-3 with the component values shown i ...
8111-RD-00-WH 32-1612-50-24-NF
... Due to the nature of the manufacturing process of blown glass, no two glass pieces are exactly alike. Each piece of hand blown glass have their own unique characteristics that make it an individual work of art. Prima cannot guarantee the exact same color or texture between multiple pieces of the sam ...
... Due to the nature of the manufacturing process of blown glass, no two glass pieces are exactly alike. Each piece of hand blown glass have their own unique characteristics that make it an individual work of art. Prima cannot guarantee the exact same color or texture between multiple pieces of the sam ...
LM3478/478Q High Efficiency Low-Side N
... AEC Q100-002 indicates HBM stressing is done in accordance with the ANSI/ESDA/JEDEC JS-001 specification. ...
... AEC Q100-002 indicates HBM stressing is done in accordance with the ANSI/ESDA/JEDEC JS-001 specification. ...
LTC4444-5 - Linear Technology
... will rise to VIN very rapidly. This high frequency positive voltage transient will couple through the CGD capacitance of the low side power MOSFET to the BG pin. If there is an insufficient pull-down on the BG pin, the voltage on the BG pin can rise above the threshold voltage of the low side power ...
... will rise to VIN very rapidly. This high frequency positive voltage transient will couple through the CGD capacitance of the low side power MOSFET to the BG pin. If there is an insufficient pull-down on the BG pin, the voltage on the BG pin can rise above the threshold voltage of the low side power ...
magnetically coupled circuits
... • MUTUAL INDUCTANCE is the ability of one inductor to induce a voltage across a neighbouring inductor, measured in henrys (H). • Mutual coupling only exists when the coils are in close proximity, and the circuits are driven by time-varying sources. ...
... • MUTUAL INDUCTANCE is the ability of one inductor to induce a voltage across a neighbouring inductor, measured in henrys (H). • Mutual coupling only exists when the coils are in close proximity, and the circuits are driven by time-varying sources. ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.