generator protection
... Protection against unbalanced operation Quite often, a generator is connected to grid using a Y transformer. The - winding on the generator side, traps the zero sequence current from flowing through the phase winding. However, positive and negative sequence currents will find their way into sta ...
... Protection against unbalanced operation Quite often, a generator is connected to grid using a Y transformer. The - winding on the generator side, traps the zero sequence current from flowing through the phase winding. However, positive and negative sequence currents will find their way into sta ...
Experiment EB2
... Multivibrators are circuits that are designed to have zero, one, or two stable output states. The 555 timer is one of the most popular general purpose IC multivibrators. It can be used in a variety of applications requiring accurate time delays, oscillation, and pulse conditioning. Signetics Corpora ...
... Multivibrators are circuits that are designed to have zero, one, or two stable output states. The 555 timer is one of the most popular general purpose IC multivibrators. It can be used in a variety of applications requiring accurate time delays, oscillation, and pulse conditioning. Signetics Corpora ...
DC Motor Workshop
... Lenz's Law says that the electromotive force (EMF) induced by a changing magnetic flux (magnetic field times area of a current loop) produces a current that flows in the direction that opposes the change in flux. This is a statement of the law of conservation of energy, because if the induced curren ...
... Lenz's Law says that the electromotive force (EMF) induced by a changing magnetic flux (magnetic field times area of a current loop) produces a current that flows in the direction that opposes the change in flux. This is a statement of the law of conservation of energy, because if the induced curren ...
SN74CBTD3305C 数据资料 dataSheet 下载
... allowing for minimal propagation delay. This device features an integrated diode in series with VCC to provide level shifting for 5-V input down to 3.3-V output levels. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBTD3305C provides protection for undershoot up to −2 V by s ...
... allowing for minimal propagation delay. This device features an integrated diode in series with VCC to provide level shifting for 5-V input down to 3.3-V output levels. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBTD3305C provides protection for undershoot up to −2 V by s ...
T551 Series
... T551 Series PHS also offers higher ripple current handling capability and a lower ESR range than wet tantalums. With reduced ESR and enhanced capacitance retention at higher frequencies and low temperatures, the T551 Series PHS provides the highest total capacitance and the most economical solution ...
... T551 Series PHS also offers higher ripple current handling capability and a lower ESR range than wet tantalums. With reduced ESR and enhanced capacitance retention at higher frequencies and low temperatures, the T551 Series PHS provides the highest total capacitance and the most economical solution ...
Frequently Asked Questions (FAQs)
... Circuit Protectors (MCP), require that the VFD be listed as a combination in order to be used as a motor branch circuit disconnect or for branch circuit protection. In addition, most VFDs do not have combination ratings above 5kA with MCPs or circuit breakers. It may be possible to achieve a high SC ...
... Circuit Protectors (MCP), require that the VFD be listed as a combination in order to be used as a motor branch circuit disconnect or for branch circuit protection. In addition, most VFDs do not have combination ratings above 5kA with MCPs or circuit breakers. It may be possible to achieve a high SC ...
ZVS Phase Shift Full Bridge
... power density. This combination is not easy to achieve and this definitely represents the most important tradeoff challenge for power converter design. In fact, the simplest way to reduce the size especially of magnetic components is to increase the switching frequency, but unfortunately this normal ...
... power density. This combination is not easy to achieve and this definitely represents the most important tradeoff challenge for power converter design. In fact, the simplest way to reduce the size especially of magnetic components is to increase the switching frequency, but unfortunately this normal ...
BD9A101MUV-LB
... Power supply terminals for the switching regulator. These terminals supply power to the output stage of the switching regulator. Connecting a 10µF ceramic capacitor is recommended. Ground terminals for the output stage of the switching regulator. Ground terminal for the control circuit. An inverting ...
... Power supply terminals for the switching regulator. These terminals supply power to the output stage of the switching regulator. Connecting a 10µF ceramic capacitor is recommended. Ground terminals for the output stage of the switching regulator. Ground terminal for the control circuit. An inverting ...
battery charging guide
... another source. With grid-connected systems Skystream supplements the utility grid while with a battery system Skystream may be supplementing power supplied to an inverter from a battery bank, an array of photovoltaic panels, an auxiliary generator or the utility grid. As shown in Figure 1, in batte ...
... another source. With grid-connected systems Skystream supplements the utility grid while with a battery system Skystream may be supplementing power supplied to an inverter from a battery bank, an array of photovoltaic panels, an auxiliary generator or the utility grid. As shown in Figure 1, in batte ...
Autonomous Blimp - The University of Akron
... Unmanned Aerial Vehicles (UAVs) operate under remote or autonomous control and are used for surveillance applications, usually when human interaction is not possible. A blimp UAV with feedback control is of special interest because of their ability for long flight duration and low power operation. T ...
... Unmanned Aerial Vehicles (UAVs) operate under remote or autonomous control and are used for surveillance applications, usually when human interaction is not possible. A blimp UAV with feedback control is of special interest because of their ability for long flight duration and low power operation. T ...
MAX6977 8-Port, 5.5V Constant-Current LED Driver with LED Fault Detection General Description
... data output allows multiple drivers to be cascaded and operated together. The contents of the 8-bit shift register are loaded into the transparent latch through a latch-enable input LE. The latch is transparent to the shift register outputs when high, and latches the current state on the falling edg ...
... data output allows multiple drivers to be cascaded and operated together. The contents of the 8-bit shift register are loaded into the transparent latch through a latch-enable input LE. The latch is transparent to the shift register outputs when high, and latches the current state on the falling edg ...
NXP`s LCD Drivers: Accurate, Reliable Solutions for VA Displays in
... Compared to traditional TN displays, VA displays provide a deeper black color, a much higher contrast ratio between the characters and the background, a wider viewing angle and better image quality, even at extreme temperatures. On the other hand, VA displays typically require a higher LCD supply vo ...
... Compared to traditional TN displays, VA displays provide a deeper black color, a much higher contrast ratio between the characters and the background, a wider viewing angle and better image quality, even at extreme temperatures. On the other hand, VA displays typically require a higher LCD supply vo ...
Appendix A UC Irvine shall develop and employ work practices and
... UC Irvine shall develop and employ work practices and procedures to minimize work involving energized electrical systems and components. In the event that this increases the hazard(s) or is infeasible, UC Irvine shall utilize work practices and procedures to prevent electrical shock or other injurie ...
... UC Irvine shall develop and employ work practices and procedures to minimize work involving energized electrical systems and components. In the event that this increases the hazard(s) or is infeasible, UC Irvine shall utilize work practices and procedures to prevent electrical shock or other injurie ...
Hardware Design Guide
... Required capacitor values listed in the table include a de-rating factor of 40%, covering tolerance, temperature, and aging effects. These factors are taken into account to assure proper operation under worst case conditions. X7R type materials are recommended for all capacitors, based on ESR charac ...
... Required capacitor values listed in the table include a de-rating factor of 40%, covering tolerance, temperature, and aging effects. These factors are taken into account to assure proper operation under worst case conditions. X7R type materials are recommended for all capacitors, based on ESR charac ...
A low power 5 GHz direct digital synthesizer
... The conventional DDS architecture utilizes a ROM look-up table to convert the accumulated phase word into sine/cosine words that are further used to drive a linear binary weighted DAC. The speed bottleneck of a conventional DDS architecture lies upon the large look-up table with multi-level decoders ...
... The conventional DDS architecture utilizes a ROM look-up table to convert the accumulated phase word into sine/cosine words that are further used to drive a linear binary weighted DAC. The speed bottleneck of a conventional DDS architecture lies upon the large look-up table with multi-level decoders ...
Externally Compensated Op Amp
... capacitor was too large to make it practical to implement the capacitor on-chip. Op amps that use an external compensation capacitor are termed “externally-compensated op amps”. External compensation is rather straightforward and for most op amp architectures, adequate performance of the feedback a ...
... capacitor was too large to make it practical to implement the capacitor on-chip. Op amps that use an external compensation capacitor are termed “externally-compensated op amps”. External compensation is rather straightforward and for most op amp architectures, adequate performance of the feedback a ...
Power Gain Stages for Monolithic Amplifiers
... Figure 9 is another voltage gain output stage. Instead of minimizing saturation losses, it provides high voltage outputs from a ±15V powered amplifier. Q1 and Q2 furnish voltage gain, and feed the Q3-Q4 emitter follower outputs. ±15V power for the LT1055 control amplifier is derived from the high vo ...
... Figure 9 is another voltage gain output stage. Instead of minimizing saturation losses, it provides high voltage outputs from a ±15V powered amplifier. Q1 and Q2 furnish voltage gain, and feed the Q3-Q4 emitter follower outputs. ±15V power for the LT1055 control amplifier is derived from the high vo ...
Godoy, P.A., S. Chung, T.W. Barton, D.J. Perreault, and J.L. Dawson, “A Highly Efficient 1.95-GHz, 18-W Asymmetric Multilevel Outphasing Transmitter for Wideband Applications,” 2011 International Microwave Symposium , pp. 1-4, June 2011.
... Fig. 8 shows the prototype 18-W, 1.95-GHz AMO transmitter, which uses two class-E GaN PAs and two discrete supply modulators. Digitally pre-distorted baseband data was generated by MATLAB after characterizing the AMO transmitter with a narrowband training signal. The two phase modulators were each i ...
... Fig. 8 shows the prototype 18-W, 1.95-GHz AMO transmitter, which uses two class-E GaN PAs and two discrete supply modulators. Digitally pre-distorted baseband data was generated by MATLAB after characterizing the AMO transmitter with a narrowband training signal. The two phase modulators were each i ...
Fully differential amplifiers
... Each power pin should have a 6.8-µF to 10-µF tantalum capacitor in parallel with a 0.01-µF to 0.1-µF ceramic capacitor located very close by. Figure 7 shows 10-µF and 0.1-µF power-supply bypass capacitors. ...
... Each power pin should have a 6.8-µF to 10-µF tantalum capacitor in parallel with a 0.01-µF to 0.1-µF ceramic capacitor located very close by. Figure 7 shows 10-µF and 0.1-µF power-supply bypass capacitors. ...
TPS79301EVM TPS79328EVM LDO Linear
... field representative prior to connecting the input power. Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to connecting any load to the EVM output. If there is uncertainty a ...
... field representative prior to connecting the input power. Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to connecting any load to the EVM output. If there is uncertainty a ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.