RSGB Review of ACOM 1000 and ACOM 2000A
... antenna VSWR's up to 3:1, increasing the useable bandwidth of many antennas, and removing the need for an antenna tuner in certain situations. The tuning network is followed by a low-pass filter with a cut-off frequency of 55 MHz to reduce harmonics in the VHF range further. This is particularly imp ...
... antenna VSWR's up to 3:1, increasing the useable bandwidth of many antennas, and removing the need for an antenna tuner in certain situations. The tuning network is followed by a low-pass filter with a cut-off frequency of 55 MHz to reduce harmonics in the VHF range further. This is particularly imp ...
Preliminary Datasheet - MAP3702
... 616µs then the acknowledge condition is valid after an internal delay time tVALACKN. This means that the internal ACKN-MOSFET is turned on after tVALACKN, when the last falling edge of the protocol was detected. The master controller keeps the line low in this period. The master device can detect th ...
... 616µs then the acknowledge condition is valid after an internal delay time tVALACKN. This means that the internal ACKN-MOSFET is turned on after tVALACKN, when the last falling edge of the protocol was detected. The master controller keeps the line low in this period. The master device can detect th ...
PD54008L-E: 8 W - 7 V LDMOS in PowerFLAT
... STMicroelectronics has been strongly involved in finding new package solutions for power integrated circuits to obtain a surface mount device (SMD). The PowerFLAT™ package introduced in this application note shows the new concept of chip-size packaging representing a fundamental step to reduce the c ...
... STMicroelectronics has been strongly involved in finding new package solutions for power integrated circuits to obtain a surface mount device (SMD). The PowerFLAT™ package introduced in this application note shows the new concept of chip-size packaging representing a fundamental step to reduce the c ...
ESCR
... load with a variation of no more than +0.5% over the specified input voltage, frequency and ambient temperature ranges. If the battery is discharged, the charger will recharge the battery from its current limiting capacity to full charge. The inherent design of the rectifier provides compensation fo ...
... load with a variation of no more than +0.5% over the specified input voltage, frequency and ambient temperature ranges. If the battery is discharged, the charger will recharge the battery from its current limiting capacity to full charge. The inherent design of the rectifier provides compensation fo ...
DN495 - Simple Energy-Tripped Circuit Breaker with Automatic Delayed Retry
... variable time delay interval, which, if allowed to complete, signals the circuit breaker to open. Nothing happens if the transient duration is shorter than the delay. A Current-Controlled Delay Interval The LTC6994-2 delays from an edge appearing at its IN pin by a time ranging from 1µs to 33 sec. T ...
... variable time delay interval, which, if allowed to complete, signals the circuit breaker to open. Nothing happens if the transient duration is shorter than the delay. A Current-Controlled Delay Interval The LTC6994-2 delays from an edge appearing at its IN pin by a time ranging from 1µs to 33 sec. T ...
troubleshooting tables
... quasi-sine or sinusoidal waveform Reduce size of loads or replace inverter with one of larger capacity Change to DC motors or use inverter with quasi-sine or sinusoidal waveform Replace inverter Replace inverter with one equipped with frequency control Reduce size of loads or replace inverter with o ...
... quasi-sine or sinusoidal waveform Reduce size of loads or replace inverter with one of larger capacity Change to DC motors or use inverter with quasi-sine or sinusoidal waveform Replace inverter Replace inverter with one equipped with frequency control Reduce size of loads or replace inverter with o ...
External Characteristic of Separately Excited DC Generator
... So, this curve can be obtained practically be separating the field winding and exciting the DC generator by an external source. Here in the diagram below AB curve is showing the magnetic characteristic of series wound DC generator. The linearity of the curve will continue till the saturation of t ...
... So, this curve can be obtained practically be separating the field winding and exciting the DC generator by an external source. Here in the diagram below AB curve is showing the magnetic characteristic of series wound DC generator. The linearity of the curve will continue till the saturation of t ...
P. Cantillon-Murphy, T.C. Neugebauer, C. Brasca, and D.J. Perreault, “An Active Ripple Filtering Technique for Improving Common-Mode Inductor Performance,” IEEE Power Electronics Letters , Vol. 2, No. 2, June 2004, pp. 45-50.
... ripple filter replaces large passive components with smaller passives and some active control circuitry. Techniques exist to either reduce the amount of noise that is generated, or to improve the performance of the passive filter [3]–[17]. This letter introduces a filtering method which replaces a l ...
... ripple filter replaces large passive components with smaller passives and some active control circuitry. Techniques exist to either reduce the amount of noise that is generated, or to improve the performance of the passive filter [3]–[17]. This letter introduces a filtering method which replaces a l ...
Test Procedure for the NCP1219PRINTGEVB Evaluation Board
... 13. Set the electronic load to the lowest current range setting. 14. Set the electronic load to 70 mA. 15. Set the dc power supply connected to pin1 of J5 to 0 V. 16. High voltages are present on the primary side of the converter during testing. Use Caution. 17. Turn the dc source on. 18. Turn the a ...
... 13. Set the electronic load to the lowest current range setting. 14. Set the electronic load to 70 mA. 15. Set the dc power supply connected to pin1 of J5 to 0 V. 16. High voltages are present on the primary side of the converter during testing. Use Caution. 17. Turn the dc source on. 18. Turn the a ...
2088/2095 Installation manual
... SHURflo warrants Industrial 2088 series pumps to be free from material and workmanship defects (under normal use and service) for a period of one (1) year from the date of manufacture. or (1) one year use with proof of purchase, not to exceed (2) two years in any event. The limited warranty will not ...
... SHURflo warrants Industrial 2088 series pumps to be free from material and workmanship defects (under normal use and service) for a period of one (1) year from the date of manufacture. or (1) one year use with proof of purchase, not to exceed (2) two years in any event. The limited warranty will not ...
Motion from electricity (The motor effect)
... a) If an electrical conductor ‘cuts’ through a magnetic field a potential difference is induced across the ends of the conductor. b) If a magnet is moved into a coil of wire a potential difference is induced across the ends of the coil. c) The basic structure of the transformer. d) An alternating cu ...
... a) If an electrical conductor ‘cuts’ through a magnetic field a potential difference is induced across the ends of the conductor. b) If a magnet is moved into a coil of wire a potential difference is induced across the ends of the coil. c) The basic structure of the transformer. d) An alternating cu ...
Magnetron_Stabilisation
... If a pulsed magnetron is operated in the lower frequency state (having less associated noise) then if too many electrons are released from the cathode during the pulse then the magnetron twins. ...
... If a pulsed magnetron is operated in the lower frequency state (having less associated noise) then if too many electrons are released from the cathode during the pulse then the magnetron twins. ...
The Physics of Armature-Reaction
... power-factor. The no-load case (o) is self-explanatory and doesn‟t need a diagram. The remaining three shown in Figure 7-1 illustrate the impact of power-factor. An analysis of each of the four conditions follows: (o) No-Load. It can be seen in the no-load equation above that when the generator load ...
... power-factor. The no-load case (o) is self-explanatory and doesn‟t need a diagram. The remaining three shown in Figure 7-1 illustrate the impact of power-factor. An analysis of each of the four conditions follows: (o) No-Load. It can be seen in the no-load equation above that when the generator load ...
SEL-734 Data Sheet
... • View load profile data. • Monitor and control inputs and outputs. • Read and save TOU data. • Place meter into test mode and monitor test pulse output. ...
... • View load profile data. • Monitor and control inputs and outputs. • Read and save TOU data. • Place meter into test mode and monitor test pulse output. ...
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.