
NCEA Level 3 Physics (90523) 2012 Assessment Schedule
... same, but the gradient is steeper. The EMF of the cell will remain the same over time but the internal resistance of the cell will increase (as the products of the reaction in the cells build up). ...
... same, but the gradient is steeper. The EMF of the cell will remain the same over time but the internal resistance of the cell will increase (as the products of the reaction in the cells build up). ...
Definitions of voltage unbalance
... From this analysis, it is found that for a given value of % unbalance, based on the NEMA definition, there is range of % unbalance, based on the true definition and also using the approximation formula. This is shown in Figure 1 for 2%, 5%, 10%, and 20% NEMA definition of voltage unbalance. The soli ...
... From this analysis, it is found that for a given value of % unbalance, based on the NEMA definition, there is range of % unbalance, based on the true definition and also using the approximation formula. This is shown in Figure 1 for 2%, 5%, 10%, and 20% NEMA definition of voltage unbalance. The soli ...
AN-8015 FMS6501 Evaluation Board Application Note AN-8015 FMS6501 Ev
... entertainment, and back up camera). In all cases, the advantages the integrated video switch matrix provides are high quality video switching specific to the application as well as video input clamps and on chip low impedance output cable drivers with selectable gain. ...
... entertainment, and back up camera). In all cases, the advantages the integrated video switch matrix provides are high quality video switching specific to the application as well as video input clamps and on chip low impedance output cable drivers with selectable gain. ...
Instrument Transformers
... Environmentally safe under severe conditions SF6 gas is non-toxic, non-flammable and non-corrosive, being chemically stable with high breakdown strength and minimal effects on the environment. This medium allows easy waste management of the transformers. Furthermore, the hydrophobic features of the ...
... Environmentally safe under severe conditions SF6 gas is non-toxic, non-flammable and non-corrosive, being chemically stable with high breakdown strength and minimal effects on the environment. This medium allows easy waste management of the transformers. Furthermore, the hydrophobic features of the ...
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 ...
FEM modeling of contactless energy transfer CN65
... disk can be justified on cost, but the design must be carefully assessed in order to avoid hot points in the shielding plates. Even if symmetry conditions are applied, a 3D transient analysis of a CET device is quite time-consuming. It should therefore be used for AC analysis or at the final validat ...
... disk can be justified on cost, but the design must be carefully assessed in order to avoid hot points in the shielding plates. Even if symmetry conditions are applied, a 3D transient analysis of a CET device is quite time-consuming. It should therefore be used for AC analysis or at the final validat ...
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 ...
LT3505 - 1.2A, Step-Down Switching Regulator in 3mm x 3mm DFN
... The LT3505 is a constant frequency, current mode stepdown regulator. A resistor-programmed oscillator enables an RS flip-flop, turning on the internal 1.4A power switch Q1. An amplifier and comparator monitor the current flowing between the VIN and SW pins, turning the switch off when this current r ...
... The LT3505 is a constant frequency, current mode stepdown regulator. A resistor-programmed oscillator enables an RS flip-flop, turning on the internal 1.4A power switch Q1. An amplifier and comparator monitor the current flowing between the VIN and SW pins, turning the switch off when this current r ...
A 256×256 CMOS active pixel sensor camera-on-a
... A sample image produced for a 256 x 256 window is shown in Fig. 5. Performance was measured for a broad range of parameters. These results are shown in Table I. The output saturation level of the sensor is 800 mV when operated from a 5 V supply. Saturation is determined by the difference between the ...
... A sample image produced for a 256 x 256 window is shown in Fig. 5. Performance was measured for a broad range of parameters. These results are shown in Table I. The output saturation level of the sensor is 800 mV when operated from a 5 V supply. Saturation is determined by the difference between the ...
TechTopics No. 55 Capacitor trip devices
... circuit breaker if the tripping command is issued 10 seconds after the ac supply is removed. This assures that the CTD has enough energy to perform its design function even when conditions are not optimal. For perspective, the rated (maximum) permissible tripping delay specified for a mediumvoltage ...
... circuit breaker if the tripping command is issued 10 seconds after the ac supply is removed. This assures that the CTD has enough energy to perform its design function even when conditions are not optimal. For perspective, the rated (maximum) permissible tripping delay specified for a mediumvoltage ...
DS507 Manual - Dyne Systems
... Dynamometer Controller). The DS507 provides field forcing for both increasing and decreasing current changes, improving stability and transient response over non-regenerative types. The DS507 provides current-source control, displaying maximum voltage during current changes and normally-rated field ...
... Dynamometer Controller). The DS507 provides field forcing for both increasing and decreasing current changes, improving stability and transient response over non-regenerative types. The DS507 provides current-source control, displaying maximum voltage during current changes and normally-rated field ...
ISOPLUS-DIL™ Series Designed for Highest Reliability
... GMM, see Figure 5 and 7. The GWM DCB has a bus bar structure inside the package with the dice placed either side. This minimizes the internal current loop area of the bus bar but the half bridge at the end sees the full bus bar length. Even more these dice see also the switching activities of the ot ...
... GMM, see Figure 5 and 7. The GWM DCB has a bus bar structure inside the package with the dice placed either side. This minimizes the internal current loop area of the bus bar but the half bridge at the end sees the full bus bar length. Even more these dice see also the switching activities of the ot ...
Leakage Current Modeling in PD SOI Circuits
... input, the Isub model developed in the previous section with single pulse width value, can be applied here as well. Similarly, the off-state power expressions can also be used. For a pulse train shown in Fig. 11, the device is assumed to be initially on for a long time, it switches off at t=0, the d ...
... input, the Isub model developed in the previous section with single pulse width value, can be applied here as well. Similarly, the off-state power expressions can also be used. For a pulse train shown in Fig. 11, the device is assumed to be initially on for a long time, it switches off at t=0, the d ...
Datasheet
... EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized f ...
... EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized f ...
A Three Level Inverter for Grid Connected Renewable Energy Systems
... High performance dedicated processors help to the designers for the realization of the digital control. Increasing demand of the grid interactive inverter also tends the manufacturers and researchers to find lower cost and higher efficiency products. ...
... High performance dedicated processors help to the designers for the realization of the digital control. Increasing demand of the grid interactive inverter also tends the manufacturers and researchers to find lower cost and higher efficiency products. ...
Product Specifications: CLS-EXP-DIM
... support 120, 230, or 277 Volt loads up to 16 Amps. It allows any output channel of the iLux system to dim a fully loaded circuit of LED[1], incandescent, magnetic low-voltage, neon/cold cathode, or 2-wire dimmable fluorescent lighting loads. It is also compatible with CLW-Series[2] in-wall dimmers a ...
... support 120, 230, or 277 Volt loads up to 16 Amps. It allows any output channel of the iLux system to dim a fully loaded circuit of LED[1], incandescent, magnetic low-voltage, neon/cold cathode, or 2-wire dimmable fluorescent lighting loads. It is also compatible with CLW-Series[2] in-wall dimmers a ...
LPF-8 manual - Warner Instruments
... present at the output will be affected by changes in the Gain control, but offset voltages at the input that have been nulled to zero using the Offset control will not be affected. A Gain Telegraph output is provided on the rear panel. This output represents the selected gain as a DC Voltage, and is ...
... present at the output will be affected by changes in the Gain control, but offset voltages at the input that have been nulled to zero using the Offset control will not be affected. A Gain Telegraph output is provided on the rear panel. This output represents the selected gain as a DC Voltage, and is ...
Real-Time sweep Experiments of y parameter the Superconducting
... two coils are connected in series with three independent DC power supplies through six superconducting buslines. Thus, the current in each block can be controlled separately, and it is possible to vary the average minor radius of the HC current, or the so-called 1 parameter ...
... two coils are connected in series with three independent DC power supplies through six superconducting buslines. Thus, the current in each block can be controlled separately, and it is possible to vary the average minor radius of the HC current, or the so-called 1 parameter ...
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.