Single-stage, universal-input ac/dc led driver with current
... for high-brightness LED applications for the universal input voltage (90–270 Vrm s ). The proposed circuit overcomes the limitations of the conventional single-stage PFC flyback with a constant boost inductance that cannot be designed to achieve a practical maximum bulk-capacitor voltage level (i.e. ...
... for high-brightness LED applications for the universal input voltage (90–270 Vrm s ). The proposed circuit overcomes the limitations of the conventional single-stage PFC flyback with a constant boost inductance that cannot be designed to achieve a practical maximum bulk-capacitor voltage level (i.e. ...
615-4740 (45-075) Induction Kit
... and currents are generally in phase with each other, whereas AC voltages may not depending upon how the secondary coils are wound. If they are connected in series the voltage will add to each other whereas in an opposite direction it will subtract. An interesting experiment is to examine coils wound ...
... and currents are generally in phase with each other, whereas AC voltages may not depending upon how the secondary coils are wound. If they are connected in series the voltage will add to each other whereas in an opposite direction it will subtract. An interesting experiment is to examine coils wound ...
Zero-flux Definitions
... The highest primary DC current that will not damage the measuring head nor the electronics. Its duration is limited only by the primary busbar for DC current, or limited to 0.1 s. in case of AC current All types recover automatically from this situation. Maximum continuous current The highest rms va ...
... The highest primary DC current that will not damage the measuring head nor the electronics. Its duration is limited only by the primary busbar for DC current, or limited to 0.1 s. in case of AC current All types recover automatically from this situation. Maximum continuous current The highest rms va ...
ZAPI MX manual
... and use a normal 3 wire potentiometer regulated on the medium value of it's total range, instead of using a central-zero potentiometer. In this case the signal on CPOT (B6) ranges from 0V to +5V and the zero is at 2.5V. ...
... and use a normal 3 wire potentiometer regulated on the medium value of it's total range, instead of using a central-zero potentiometer. In this case the signal on CPOT (B6) ranges from 0V to +5V and the zero is at 2.5V. ...
Model 430 Bridgesensor
... the sensor. The +SENSE and -SENSE terminals must be connected to the B+ and B- terminals respectively, i.e. connect terminals 1 and 2 together, and connect terminals 3 and 4 together when remote sensing is not being used. More current may be drawn from the EXCITATION supply than is shown by the B+ V ...
... the sensor. The +SENSE and -SENSE terminals must be connected to the B+ and B- terminals respectively, i.e. connect terminals 1 and 2 together, and connect terminals 3 and 4 together when remote sensing is not being used. More current may be drawn from the EXCITATION supply than is shown by the B+ V ...
Standard Safety High Voltage Installations On Board Ships
... a period of time • equipment using water as part of the high voltage plant can lead to an increased risk of injury • using test instruments when taking high voltage measurements can increase the risk of injury if the protective earth conductor is not connected. This can result in the enclosure of ...
... a period of time • equipment using water as part of the high voltage plant can lead to an increased risk of injury • using test instruments when taking high voltage measurements can increase the risk of injury if the protective earth conductor is not connected. This can result in the enclosure of ...
Synchronous close capacitor bank switching made easy
... • Eliminate the material cost and space required for inrush reactors • Mitigate harmonics and switching disturbances that occur in back-to-back capacitor bank switching and large power capacitor bank switching • One tank device configured for independent pole operation for three-phase application ...
... • Eliminate the material cost and space required for inrush reactors • Mitigate harmonics and switching disturbances that occur in back-to-back capacitor bank switching and large power capacitor bank switching • One tank device configured for independent pole operation for three-phase application ...
Features Electric Stopper Cylinder／LEBH
... Note 1) This actuator holds the raised-end when de-energized. (Spring return) Note 2) This actuator holds the lowered-end with solenoid only when de-energized. Note 3) This actuator can be used in vertical directions only. Note 4) The motor will be turned OFF automatically by the internal circuit bo ...
... Note 1) This actuator holds the raised-end when de-energized. (Spring return) Note 2) This actuator holds the lowered-end with solenoid only when de-energized. Note 3) This actuator can be used in vertical directions only. Note 4) The motor will be turned OFF automatically by the internal circuit bo ...
Design and Implementation of Automatic Three Phase Changer
... The automatic phase changer was made from several electronic components which includes; operational amplifiers, diodes, resistors, capacitors, Zener diodes, transformers, relays and fuses. Results obtained during the test shows that, whenever the system senses a higher voltage across the three input ...
... The automatic phase changer was made from several electronic components which includes; operational amplifiers, diodes, resistors, capacitors, Zener diodes, transformers, relays and fuses. Results obtained during the test shows that, whenever the system senses a higher voltage across the three input ...
Switched Mode Controller for DC Motor Drive.
... An under-voltage lockout circuit holds the outputs in the low state until a minimum of 4 V is reached. At this point, all internal circuitry is functional and the output drivers are enabled. If external circuitry requires a higher starting voltage, an over-riding voltage can be programmed through th ...
... An under-voltage lockout circuit holds the outputs in the low state until a minimum of 4 V is reached. At this point, all internal circuitry is functional and the output drivers are enabled. If external circuitry requires a higher starting voltage, an over-riding voltage can be programmed through th ...
MAXPLUS 211 OPTION SPINDLE AMPLIFIER
... because two of the combinations produce the same basic KE and KT. The reconfiguration of the motor windings from a DELTA to a WYE along with series or parallel connections allows changing the motors KE and KT. This allows the motor and amplifier to produce similar horsepower in the three speed range ...
... because two of the combinations produce the same basic KE and KT. The reconfiguration of the motor windings from a DELTA to a WYE along with series or parallel connections allows changing the motors KE and KT. This allows the motor and amplifier to produce similar horsepower in the three speed range ...
VR21 regulator troubleshooting
... The filter/choke works with power transistors to provide a “bank” of high DC voltage across two large, yellow capacitors to provide power as required by the exciter. When AC voltage is applied in bench testing or in generator operation it quickly reaches an even higher DC voltage, typically 300 VDC ...
... The filter/choke works with power transistors to provide a “bank” of high DC voltage across two large, yellow capacitors to provide power as required by the exciter. When AC voltage is applied in bench testing or in generator operation it quickly reaches an even higher DC voltage, typically 300 VDC ...
Bulk Metal® Foil Resistors
... and one intuitively expects the steady state requirements to have the simpler solution • Dynamic requirements are more demanding because the current is constantly changing and the time response of the current sensing resistor and its attendant circuitry must be fast enough to follow the changes ...
... and one intuitively expects the steady state requirements to have the simpler solution • Dynamic requirements are more demanding because the current is constantly changing and the time response of the current sensing resistor and its attendant circuitry must be fast enough to follow the changes ...
Forward Type Switched Mode Power Supply
... mode-2 is exactly made up in mode-1. • To maintain load voltage within the desired tolerance band the filter inductor and capacitor magnitudes should be sufficiently large. However, in order to keep the filter cost and its physical size small these elements should not be unnecessarily too large. Als ...
... mode-2 is exactly made up in mode-1. • To maintain load voltage within the desired tolerance band the filter inductor and capacitor magnitudes should be sufficiently large. However, in order to keep the filter cost and its physical size small these elements should not be unnecessarily too large. Als ...
Document
... Characteristics of Coupled Interference Electrically coupled current (via mutual capacitance) ...
... Characteristics of Coupled Interference Electrically coupled current (via mutual capacitance) ...
Coupling Between Wire Lines and Application to Transfer
... Characteristics of Coupled Interference Electrically coupled current (via mutual capacitance) ...
... Characteristics of Coupled Interference Electrically coupled current (via mutual capacitance) ...
Motor Nonlinearities in Electrodynamic Loudspeakers
... conclusions could help loudspeaker designers in conceiving their loudspeaker motors, with the aim of reducing their nonlinearities, enough to be sure that no sound distortion would be audible. Another way to get rid of the distortions generated by a loudspeaker motor is to use a completely different ...
... conclusions could help loudspeaker designers in conceiving their loudspeaker motors, with the aim of reducing their nonlinearities, enough to be sure that no sound distortion would be audible. Another way to get rid of the distortions generated by a loudspeaker motor is to use a completely different ...
Constant Voltage LED Driver LCV
... offers reliability and compatibility with most types of low power LED sources, providing three hour duration emergency lighting at full output. The range is available in a wide range of LED voltage outputs and varying battery sizes, to suit the developing LED market. The LCV has extra circuitry so t ...
... offers reliability and compatibility with most types of low power LED sources, providing three hour duration emergency lighting at full output. The range is available in a wide range of LED voltage outputs and varying battery sizes, to suit the developing LED market. The LCV has extra circuitry so t ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... reliability and power quality in the utility sector and other non-stationary power applications, integration of renewable sources into distributed generation systems, improved energy efficiency and productivity in conventional power generation plants, and regenerative motor drive systems. Ultra-capa ...
... reliability and power quality in the utility sector and other non-stationary power applications, integration of renewable sources into distributed generation systems, improved energy efficiency and productivity in conventional power generation plants, and regenerative motor drive systems. Ultra-capa ...
Power supply testing on Danfoss DC powered refrigeration systems
... If the power supply is free of loose, bad, and/or high resistance connections, the voltage reading at “5” above will stay very stable and only drop slightly when the compressor starts. As a general rule, on a 12v system the reading should not drop below 12v. • If, when the compressor attempts to sta ...
... If the power supply is free of loose, bad, and/or high resistance connections, the voltage reading at “5” above will stay very stable and only drop slightly when the compressor starts. As a general rule, on a 12v system the reading should not drop below 12v. • If, when the compressor attempts to sta ...
Stepper motor
A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.