Development of a Picosecond-resolution TDC for
... the digitization would be done with a 5 GHz 10-bit counter, resulting in a least count of 1 ps. The second design we have simulated is a time-to-amplitude converter (TAC) with a sensitivity of 1mV/ps. The maximum input time interval of 1ns will convert to a 1.0V voltage that is held in a capacitor. ...
... the digitization would be done with a 5 GHz 10-bit counter, resulting in a least count of 1 ps. The second design we have simulated is a time-to-amplitude converter (TAC) with a sensitivity of 1mV/ps. The maximum input time interval of 1ns will convert to a 1.0V voltage that is held in a capacitor. ...
Sensorless position control of permanent magnet motors with
... such devices, signal injection-based schemes appear a necessary solution for sensorless operation. As a matter of fact, at low and zero speed the back EMF voltage magnitude is very small or zero. This makes all the techniques based on the back EMF unsuccessful [1]. Recently, a large effort has been ...
... such devices, signal injection-based schemes appear a necessary solution for sensorless operation. As a matter of fact, at low and zero speed the back EMF voltage magnitude is very small or zero. This makes all the techniques based on the back EMF unsuccessful [1]. Recently, a large effort has been ...
System Overview: Dell PowerEdge 1600SC Systems
... Certain devices protect the system from the effects of problems such as power surges and power failures. ...
... Certain devices protect the system from the effects of problems such as power surges and power failures. ...
Full-Text PDF
... In this paper, Series capacitor compensation in AC transmission systems is an economical means to increase load carrying capability, control load sharing among parallel lines and enhance transient stability. However, capacitors in series with transmission lines may cause subsynchronous resonance tha ...
... In this paper, Series capacitor compensation in AC transmission systems is an economical means to increase load carrying capability, control load sharing among parallel lines and enhance transient stability. However, capacitors in series with transmission lines may cause subsynchronous resonance tha ...
DC1902B – LT4320 Ideal Diode Bridge Controller
... controller LT®4320 suitable for applications that require low to medium current AC to DC full-wave rectification or DC polarity correction and a small compact solution (see Table 2). The LT4320 drives four N-channel MOSFETs to perform full-wave rectification functionally similar to a diode bridge bu ...
... controller LT®4320 suitable for applications that require low to medium current AC to DC full-wave rectification or DC polarity correction and a small compact solution (see Table 2). The LT4320 drives four N-channel MOSFETs to perform full-wave rectification functionally similar to a diode bridge bu ...
section 15172
... B. Verify that surface is suitable for VFD installation. C. Do not install VFD until the installation environment can be maintained, within the service conditions required by the manufacturer. ...
... B. Verify that surface is suitable for VFD installation. C. Do not install VFD until the installation environment can be maintained, within the service conditions required by the manufacturer. ...
genelec.com – 1029a data sheet PDF
... designed to have a sufficient LF extension (-3 dB at 68 Hz) for most monitoring applica- ...
... designed to have a sufficient LF extension (-3 dB at 68 Hz) for most monitoring applica- ...
L41028287
... switching states and the remaining two topologies produce zero output voltage and are known as zero switching states. DG INTERFACING POWER ELECTRONICS Generally, micro-sources are dc or nonutility-grade ac, whose voltage/current has to be converted to utility-grade ac with the desired magnitude, fre ...
... switching states and the remaining two topologies produce zero output voltage and are known as zero switching states. DG INTERFACING POWER ELECTRONICS Generally, micro-sources are dc or nonutility-grade ac, whose voltage/current has to be converted to utility-grade ac with the desired magnitude, fre ...
Delta Connected, 9-Lead Motor Insulation Testing
... Delta Connected, 9-Lead Motor Insulation Testing This type of motor is probably the most commonly used in factories, lumber-mills, and other commercial plants. They are dual-voltage and can be wired for either 240Vac or 480Vac. Each motor will have 9 numbered leads coming out of the motor. The lead ...
... Delta Connected, 9-Lead Motor Insulation Testing This type of motor is probably the most commonly used in factories, lumber-mills, and other commercial plants. They are dual-voltage and can be wired for either 240Vac or 480Vac. Each motor will have 9 numbered leads coming out of the motor. The lead ...
LL-230 Loadlogger
... The Load Profiler is a rugged, non-invasive digital recording ammeter for simple, cost effective collection of load data on your power circuits. The Load Profiler has the same operating characteristics as the LL-230, but is packaged for use as a hand held ammeter. To monitor and record line currents ...
... The Load Profiler is a rugged, non-invasive digital recording ammeter for simple, cost effective collection of load data on your power circuits. The Load Profiler has the same operating characteristics as the LL-230, but is packaged for use as a hand held ammeter. To monitor and record line currents ...
EE14 paper1
... The DPFC has some advantages over UPFC, as follows: High Control Capability The DPFC alike UPFC, can control all parameters of transmission network, such as line impedance, bus voltage magnitude and transmission angle. High Reliability The distributed series converters redundancy increases the D ...
... The DPFC has some advantages over UPFC, as follows: High Control Capability The DPFC alike UPFC, can control all parameters of transmission network, such as line impedance, bus voltage magnitude and transmission angle. High Reliability The distributed series converters redundancy increases the D ...
The High Efficiency Renewable PV Inverter Topology
... an alternating current than can be used by the utility. As the demand for the PV system is increased, our focus on the photovoltaic inverter. The proposed H6-ZVR topology, consist of diode rectifier, and a new ac H-bridge bypass circuit thus the ground leakage problem is reduced1. The efficiency of ...
... an alternating current than can be used by the utility. As the demand for the PV system is increased, our focus on the photovoltaic inverter. The proposed H6-ZVR topology, consist of diode rectifier, and a new ac H-bridge bypass circuit thus the ground leakage problem is reduced1. The efficiency of ...
Stepper Motor Speed Control
... This is the circuit, which drives the coil of stepper motor. There are circuits which drive X coil, ( coil, V coil and V coil respectively. Transistor is used for the drive of the coil. As for the connection, 2 stages of transistors are connected inside in series. The "life" of this transistor is ...
... This is the circuit, which drives the coil of stepper motor. There are circuits which drive X coil, ( coil, V coil and V coil respectively. Transistor is used for the drive of the coil. As for the connection, 2 stages of transistors are connected inside in series. The "life" of this transistor is ...
S1500
... The Wheelock Series MB Bells include higher dBA, low current draw, built-in trimplate for semi-flush mounting, low frequency aluminum shells, and low RFI noise. The motor for Series MB Bells is a durable, high torque permanent magnet motor selected for its high performance and long life. These DC vi ...
... The Wheelock Series MB Bells include higher dBA, low current draw, built-in trimplate for semi-flush mounting, low frequency aluminum shells, and low RFI noise. The motor for Series MB Bells is a durable, high torque permanent magnet motor selected for its high performance and long life. These DC vi ...
Document
... Due to the klystron being the only suitable load for the power supply, the system had to be commissioned as a whole. All components had previously undergone full power factory tests. One week was scheduled for commissioning with engineers from Toshiba and diversified. 3 days were spent making all t ...
... Due to the klystron being the only suitable load for the power supply, the system had to be commissioned as a whole. All components had previously undergone full power factory tests. One week was scheduled for commissioning with engineers from Toshiba and diversified. 3 days were spent making all t ...
P0470196100
... The resonant load consists of a LCC filter, associated with the EFL electrical model. The operating frequency is given by the half-bridge inverter, which usually operates, near the filter resonant frequency during starting process. The resonant filter is used to adapt the square waveform supplied by ...
... The resonant load consists of a LCC filter, associated with the EFL electrical model. The operating frequency is given by the half-bridge inverter, which usually operates, near the filter resonant frequency during starting process. The resonant filter is used to adapt the square waveform supplied by ...
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.