testequip-intro
... (4) Set the meter to the resistance (Ω) setting and measure you body resistance. Tightly grasp one meter lead in each hand and measure the resistance between the hands of your body. Record the resistance reading below. Body hand-to-hand resistance reading: __________________________ (5) Now measure ...
... (4) Set the meter to the resistance (Ω) setting and measure you body resistance. Tightly grasp one meter lead in each hand and measure the resistance between the hands of your body. Record the resistance reading below. Body hand-to-hand resistance reading: __________________________ (5) Now measure ...
The Design and Testing of an Automatic RF Conditioning System for
... multipactor and confirmed it with experiments. At present, the multipactor in the valley magnetic field of the cyclotron can be simulated through the large-scale programs which is the parallel numerical calculation. Through observing and studying, we find that the multipactor of the CYCIAE-14 usuall ...
... multipactor and confirmed it with experiments. At present, the multipactor in the valley magnetic field of the cyclotron can be simulated through the large-scale programs which is the parallel numerical calculation. Through observing and studying, we find that the multipactor of the CYCIAE-14 usuall ...
TPS6205x 800-mA Synchronous Step
... P-channel power MOSFET switches. Synchronous rectification increases efficiency and reduces external component count. To achieve highest efficiency over a wide load current range, the converter enters a power-saving pulse frequency modulation (PFM) mode at light load currents. Operating frequency is ...
... P-channel power MOSFET switches. Synchronous rectification increases efficiency and reduces external component count. To achieve highest efficiency over a wide load current range, the converter enters a power-saving pulse frequency modulation (PFM) mode at light load currents. Operating frequency is ...
EMDX3 electrical energy meters EMDX3 multi
... EMDX3 - Premium (continued) Modules for EMDX3 - Premium multi-function measuring units RS 485 communication module MODBUS link Storage module Storage of active and reactive power over 62 days, the last 10 alarms and the average voltage and frequency values over 60 days max. Module with 2 inputs/2 ou ...
... EMDX3 - Premium (continued) Modules for EMDX3 - Premium multi-function measuring units RS 485 communication module MODBUS link Storage module Storage of active and reactive power over 62 days, the last 10 alarms and the average voltage and frequency values over 60 days max. Module with 2 inputs/2 ou ...
FAN6747WL Highly Integrated Green-Mode PWM Controller FAN6747WL — Highly Integra
... the first counter 15ms and checks if VDD is below 10V; if it is, the PWM latches off for SCP. If VDD is higher than 10V; it keeps counting to 215ms, then the PWM latches off for OCP. FAN6747WL also integrates a frequency-hopping function that helps reduce EMI emission of a power supply with minimum ...
... the first counter 15ms and checks if VDD is below 10V; if it is, the PWM latches off for SCP. If VDD is higher than 10V; it keeps counting to 215ms, then the PWM latches off for OCP. FAN6747WL also integrates a frequency-hopping function that helps reduce EMI emission of a power supply with minimum ...
L272 / L272A Dual Power Operational Amplifier L272 / L272 A —
... L272 / L272A — Dual Power Operational Amplifier ...
... L272 / L272A — Dual Power Operational Amplifier ...
XL280 Product Specification
... All output voltages shall rise from 10% to 90% of nominal output voltage (as specified in Table 3-1) within 0.2ms to 20ms. The rising output waveforms are monotonic from 10% to 90% under the maximum steady-state load conditions specified in Table 3-2. ...
... All output voltages shall rise from 10% to 90% of nominal output voltage (as specified in Table 3-1) within 0.2ms to 20ms. The rising output waveforms are monotonic from 10% to 90% under the maximum steady-state load conditions specified in Table 3-2. ...
MAX1804 External Four-Input Feedback Integrator for Power Supplies General Description
... or disconnected (for example, in notebook computers). If a load switch is opened and the output voltage sensed at one input falls, the MAX1804 automatically disables that input and adjusts the regulator’s output voltage to the lowest of remaining active inputs. If all inputs are disabled, the OUT pi ...
... or disconnected (for example, in notebook computers). If a load switch is opened and the output voltage sensed at one input falls, the MAX1804 automatically disables that input and adjusts the regulator’s output voltage to the lowest of remaining active inputs. If all inputs are disabled, the OUT pi ...
Luxrail Specification Sheet
... (e.g., themed environments, theatres and residential areas). The high output version delivers illuminance levels applicable to interior environments – providing in excess of 10 footcandles along the path of egress (ANSI required for stair treads). Independent photometric test reports and IES Format ...
... (e.g., themed environments, theatres and residential areas). The high output version delivers illuminance levels applicable to interior environments – providing in excess of 10 footcandles along the path of egress (ANSI required for stair treads). Independent photometric test reports and IES Format ...
Encompass Family Presentation
... 4 external meter inputs plus the kV2c metered data External inputs require use of the Multiple I/O option board Up to 8 data combinations allowed -- “totalization maps” Add or subtract inputs with the same engineering units May use one totalization channel as input to a second ...
... 4 external meter inputs plus the kV2c metered data External inputs require use of the Multiple I/O option board Up to 8 data combinations allowed -- “totalization maps” Add or subtract inputs with the same engineering units May use one totalization channel as input to a second ...
The Modernized U of C Seismic Physical Modelling Facility
... transducers, coupled with subtle differences in the mechanical mounting of the transducers. The waveform variability in the gathers may be decreased by deconvolution. However, it is likely that a procedure for selecting transducers with well-matched responses will be required for better results. ...
... transducers, coupled with subtle differences in the mechanical mounting of the transducers. The waveform variability in the gathers may be decreased by deconvolution. However, it is likely that a procedure for selecting transducers with well-matched responses will be required for better results. ...
Presentation
... The summing amplifier with the R-2R ladder of resistances shown produces the output where the D's take the value 0 or 1. The digital inputs could be TTL voltages which close the switches on a logical 1 and leave it grounded for a logical 0. This is illustrated for 4 bits, but can be extended t ...
... The summing amplifier with the R-2R ladder of resistances shown produces the output where the D's take the value 0 or 1. The digital inputs could be TTL voltages which close the switches on a logical 1 and leave it grounded for a logical 0. This is illustrated for 4 bits, but can be extended t ...
An Efficient Field-Circuit Coupling Based on a Temporary
... Enno Lange, François Henrotte, and Kay Hameyer Institute of Electrical Machines-RWTH Aachen University, D-52062 Aachen, Germany A field-circuit coupling method is presented, whose basic idea is to extract from the finite-element (FE) model a linearized lumped parameter representation of the electric ...
... Enno Lange, François Henrotte, and Kay Hameyer Institute of Electrical Machines-RWTH Aachen University, D-52062 Aachen, Germany A field-circuit coupling method is presented, whose basic idea is to extract from the finite-element (FE) model a linearized lumped parameter representation of the electric ...
STP 3 & 4 2.12 Station Electrical Systems
... The Class 1E Instrument and Control Power Supply consists of three four divisions (Division I, II, and III, and IV) of interruptible power supplies with their respective distribution panels. Each Class 1E power supply provides interruptible, regulated AC power to Class 1E circuits which do not requi ...
... The Class 1E Instrument and Control Power Supply consists of three four divisions (Division I, II, and III, and IV) of interruptible power supplies with their respective distribution panels. Each Class 1E power supply provides interruptible, regulated AC power to Class 1E circuits which do not requi ...
Paper - World Academy of Science, Engineering and
... The H-bridge arrangement is generally used to reverse the polarity of the motor, but can also be used to 'brake' the motor, where the motor comes to a sudden stop, as the motor's terminals are shorted, or to let the motor 'free run' to a stop, as the motor is effectively disconnected from the circui ...
... The H-bridge arrangement is generally used to reverse the polarity of the motor, but can also be used to 'brake' the motor, where the motor comes to a sudden stop, as the motor's terminals are shorted, or to let the motor 'free run' to a stop, as the motor is effectively disconnected from the circui ...
DRV8881 - Texas Instruments
... The DRV8881 is a bipolar stepper or brushed-DC motor driver for industrial applications. The device output stage consists of two N-channel power MOSFET H-bridge drivers. The DRV8881 is capable of driving up to 2.5-A peak current or 1.4-A rms current per H-bridge (with proper PCB ground plane for the ...
... The DRV8881 is a bipolar stepper or brushed-DC motor driver for industrial applications. The device output stage consists of two N-channel power MOSFET H-bridge drivers. The DRV8881 is capable of driving up to 2.5-A peak current or 1.4-A rms current per H-bridge (with proper PCB ground plane for the ...
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.