
Long-travel Piezomotors: Rebooting the Topic
... Figure 2: Variety of ceramic insulated piezo stack actuators, standard and with aperture. The operation of the ceramic element is characterized by four factors: a) precision; b) speed; c) short travels; and d) high force. The stack’s positioning precision comes from its almost-linear dimensional ch ...
... Figure 2: Variety of ceramic insulated piezo stack actuators, standard and with aperture. The operation of the ceramic element is characterized by four factors: a) precision; b) speed; c) short travels; and d) high force. The stack’s positioning precision comes from its almost-linear dimensional ch ...
Electricity Ten Year Statement Appendix E – Technology Sheets
... used to convert AC power to DC (rectifier) and DC power to AC (inverter). Voltage Source Converters (VSC) have been used in HVDC transmission systems since the late 1990s [1]. VSC technology is distinguished from the more conventional Current Source Converter (CSC) technology by the use of self comm ...
... used to convert AC power to DC (rectifier) and DC power to AC (inverter). Voltage Source Converters (VSC) have been used in HVDC transmission systems since the late 1990s [1]. VSC technology is distinguished from the more conventional Current Source Converter (CSC) technology by the use of self comm ...
Lambert, S 13 - Newcastle University eTheses
... energy is stored for future use. Increasingly, the demands of modern systems such as electric vehicles, renewable energy, distributed generation, smart grid and others has stretched the development of new chemistries, materials and assembly techniques for electrochemical batteries. Additionally, som ...
... energy is stored for future use. Increasingly, the demands of modern systems such as electric vehicles, renewable energy, distributed generation, smart grid and others has stretched the development of new chemistries, materials and assembly techniques for electrochemical batteries. Additionally, som ...
Features
... arrive through Schmitt-trigger inputs. This adds a small time delay, but substantially reduces noise on that input pin. Approximately 500 mV of hysteresis will be added when Schmitt-trigger inputs are selected. All LVCMOS inputs can have hysteresis input. Hysteresis also allows easy generation of ex ...
... arrive through Schmitt-trigger inputs. This adds a small time delay, but substantially reduces noise on that input pin. Approximately 500 mV of hysteresis will be added when Schmitt-trigger inputs are selected. All LVCMOS inputs can have hysteresis input. Hysteresis also allows easy generation of ex ...
ADG1221 数据手册DataSheet下载
... the other switch. The ADG1223 exhibits break-before-make switching action for use in multiplexer applications. Each switch conducts equally well in both directions when on and has an input signal range that extends to the supplies. In the off condition, signal levels up to the supplies are blocked. ...
... the other switch. The ADG1223 exhibits break-before-make switching action for use in multiplexer applications. Each switch conducts equally well in both directions when on and has an input signal range that extends to the supplies. In the off condition, signal levels up to the supplies are blocked. ...
Transformer Protection
... will be seriously under-utilized because only one motor can be connected. For one motor, 1 x 700% of 83 = 581 amps. For two motors, 2 x 700% of 83 = 1162 amps. Since the sum of the devices cannot exceed 600 amps, only one motor can be connected when the motor circuit is protected by an MCP. ...
... will be seriously under-utilized because only one motor can be connected. For one motor, 1 x 700% of 83 = 581 amps. For two motors, 2 x 700% of 83 = 1162 amps. Since the sum of the devices cannot exceed 600 amps, only one motor can be connected when the motor circuit is protected by an MCP. ...
Designing Linear Amplifiers Using the IL300 Optocoupler
... provide a quality link from the sensor to the controller input. Safety is an important factor in instrumentation for medical patient monitoring. EEG, ECG, and similar systems demand high insulation safety for the patient under evaluation. The IL300’s 7500 V withstand test voltage (WTV) insulation, D ...
... provide a quality link from the sensor to the controller input. Safety is an important factor in instrumentation for medical patient monitoring. EEG, ECG, and similar systems demand high insulation safety for the patient under evaluation. The IL300’s 7500 V withstand test voltage (WTV) insulation, D ...
Damping of Power System Oscillations using Unified Power Flow
... Unified Power Flow Controller (UPFC) is one of the FACTS devices, which can control power system parameters such as terminal voltage, line impedance and phase angle. It can also be used for damping power system oscillations. Recently researchers have presented dynamic models of UPFC in order to desi ...
... Unified Power Flow Controller (UPFC) is one of the FACTS devices, which can control power system parameters such as terminal voltage, line impedance and phase angle. It can also be used for damping power system oscillations. Recently researchers have presented dynamic models of UPFC in order to desi ...
PC-Based Data Acquisition Unit
... Three types of measurement intervals can be used in a single system in various combinations. Measurement intervals are specified for each module. It is also possible to set different types of input modules to the same measurement interval or to set the same type of input modules to different measure ...
... Three types of measurement intervals can be used in a single system in various combinations. Measurement intervals are specified for each module. It is also possible to set different types of input modules to the same measurement interval or to set the same type of input modules to different measure ...
HS2313011312
... ground path is switched off either by a NMOS or PMOS transistor [10]. In many applications comparator speed, power dissipation and number of transistors are more important. If comparator speed is a priority, the regenerative stage could be designed to start its operation from midway between power su ...
... ground path is switched off either by a NMOS or PMOS transistor [10]. In many applications comparator speed, power dissipation and number of transistors are more important. If comparator speed is a priority, the regenerative stage could be designed to start its operation from midway between power su ...
Repetitive swells
... containing 20 varistors each were run for a total of 100 'Ihe objective of the experiment is to develop an varistors in one experiment. The order of applied swell empirical model relating the percentage change in nominal conditions was randomized to reduce the potential varistor voltage before and a ...
... containing 20 varistors each were run for a total of 100 'Ihe objective of the experiment is to develop an varistors in one experiment. The order of applied swell empirical model relating the percentage change in nominal conditions was randomized to reduce the potential varistor voltage before and a ...
Fully-Differential Amplifiers (Rev. E)
... Figure 2 shows a simplified version of an integrated, fully-differential amplifier (representative of the THS41xx or the THS45xx). Q1 and Q2 are the input differential pair. In a standard operational amplifier, output current is taken from only one side of the input differential pair and used to dev ...
... Figure 2 shows a simplified version of an integrated, fully-differential amplifier (representative of the THS41xx or the THS45xx). Q1 and Q2 are the input differential pair. In a standard operational amplifier, output current is taken from only one side of the input differential pair and used to dev ...
INTERNATIONAL STANDARD IEC 60076-1
... 10.1 General requirements for routine, type and special tests ....................................... 59 10.2 Measurement of winding resistance ...................................................................... 61 10.3 Measurement of voltage ratio and check of phase displacement ................ ...
... 10.1 General requirements for routine, type and special tests ....................................... 59 10.2 Measurement of winding resistance ...................................................................... 61 10.3 Measurement of voltage ratio and check of phase displacement ................ ...
MAX536/MAX537 Calibrated, Quad, 12-Bit Voltage-Output DACs with Serial Interface _______________General Description
... SDI, SCK , CS, LDAC, TP, SDO to AGND or DGND.....................................-0.3V, (VDD + 0.3V) REFAB, REFCD to AGND or DGND .............-0.3V, (VDD + 0.3V) OUT_ to AGND or DGND .............................................VDD, VSS ...
... SDI, SCK , CS, LDAC, TP, SDO to AGND or DGND.....................................-0.3V, (VDD + 0.3V) REFAB, REFCD to AGND or DGND .............-0.3V, (VDD + 0.3V) OUT_ to AGND or DGND .............................................VDD, VSS ...
PD62GB10_11_Digital multimeters and power analyzers DMG series
... the DMK SW and DMK SW 10 remote control software, already used with the DMK series multimeters. DMK SW The remote control software is capable of supervising up to 250 digital multimeters connected on one single bus. DMK SW 10 It includes a data-logger supervision software and the DMK SW remote contr ...
... the DMK SW and DMK SW 10 remote control software, already used with the DMK series multimeters. DMK SW The remote control software is capable of supervising up to 250 digital multimeters connected on one single bus. DMK SW 10 It includes a data-logger supervision software and the DMK SW remote contr ...
MAX4810/MAX4811/MAX4812 Dual, Unipolar/Bipolar, High-Voltage Digital Pulsers General Description
... the positive and negative pulses and active clamp. Also included are two independent enable inputs. Disabling EN ensures the output MOSFETs are not accidentally turned on during fast power-supply ramping. This allows for faster ramp times and smaller delays between pulsing modes. A low-power shutdow ...
... the positive and negative pulses and active clamp. Also included are two independent enable inputs. Disabling EN ensures the output MOSFETs are not accidentally turned on during fast power-supply ramping. This allows for faster ramp times and smaller delays between pulsing modes. A low-power shutdow ...
IOM - Enviro-Tec
... 1. With all electrical devices, there is a danger of shock. Lethal voltages are present at the supply connection of all power transformers. Use caution when measuring operating voltages with these units. 2. At the beginning of each section are “Common Problems.” To save time, check these items first ...
... 1. With all electrical devices, there is a danger of shock. Lethal voltages are present at the supply connection of all power transformers. Use caution when measuring operating voltages with these units. 2. At the beginning of each section are “Common Problems.” To save time, check these items first ...
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.