Night-Vision Scopes
... discharge pulses, the illumination of neon lamps NE1 and NE2 will be visible only in darkness. If power supplies have been built and installed correctly, the phosphor screen of the image tube should emit a green glow, whether or not light is incident on the cathode. The green glow persists for a abo ...
... discharge pulses, the illumination of neon lamps NE1 and NE2 will be visible only in darkness. If power supplies have been built and installed correctly, the phosphor screen of the image tube should emit a green glow, whether or not light is incident on the cathode. The green glow persists for a abo ...
LA7838 Data Sheet
... On the LA7837, 7838, pin 3 one-shot multivibrator operates when a trigger pulse enters pin 2. During this time, the sawtooth wave generator discharge circuit and clamp circuit inside pin 6 operate. The clamp voltage at this time is figured according to this formula : VCLAMP=5/12 · VCC .............. ...
... On the LA7837, 7838, pin 3 one-shot multivibrator operates when a trigger pulse enters pin 2. During this time, the sawtooth wave generator discharge circuit and clamp circuit inside pin 6 operate. The clamp voltage at this time is figured according to this formula : VCLAMP=5/12 · VCC .............. ...
A DESIGNERS GUIDE TO THE L200 VOLTAGE REGULATOR
... current flowing through T1 and, in any case, this should not exceed the maximum current through R2 under automatic operation. The circuit shown with a small modification can also be used for dimmers other than in a car. Fig. 15 shows the modification needed. The zener diode should have a VF ≥ 2.5 V ...
... current flowing through T1 and, in any case, this should not exceed the maximum current through R2 under automatic operation. The circuit shown with a small modification can also be used for dimmers other than in a car. Fig. 15 shows the modification needed. The zener diode should have a VF ≥ 2.5 V ...
Installation Manual - Schneider Electric
... Only appropriately trained persons who are familiar with and understand the contents of this manual and all other pertinent product documentation and who have received safety training to recognize and avoid hazards involved are authorized to work on and with this drive system. Installation, adjustme ...
... Only appropriately trained persons who are familiar with and understand the contents of this manual and all other pertinent product documentation and who have received safety training to recognize and avoid hazards involved are authorized to work on and with this drive system. Installation, adjustme ...
Finisar HFE4083-322 Product Specification
... Emitted Power vs. Current: Power varies approximately Threshold Current vs. Temperature: Threshold linearly with current above threshold. current varies parabolically with temperature; thus it can be nearly constant for a limited temperature range. ...
... Emitted Power vs. Current: Power varies approximately Threshold Current vs. Temperature: Threshold linearly with current above threshold. current varies parabolically with temperature; thus it can be nearly constant for a limited temperature range. ...
3. Basic requirements for the AC Drives
... 3.4.6 The AC drive shall have a selectable ride through function that will allow the logic to maintain control for a minimum of one second without faulting. 3.4.7 The deceleration mode of the AC drive shall be programmable for normal and fault conditions. The stop modes shall include freewheel stop, ...
... 3.4.6 The AC drive shall have a selectable ride through function that will allow the logic to maintain control for a minimum of one second without faulting. 3.4.7 The deceleration mode of the AC drive shall be programmable for normal and fault conditions. The stop modes shall include freewheel stop, ...
AP1120
... 4. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the input/output differentially and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. 5. Quiescent current is defin ...
... 4. Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is determined by the input/output differentially and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range. 5. Quiescent current is defin ...
fast voltage stabilty index based optimal reactive power
... minima.The rapid development of power electronics technology provides exciting opportunities to develop new power system equipment for better utilization of existing systems. This Article Presents an application of Fast Voltage Stabilty Index(FVSI) to identify the weak buses for the RPP problem usin ...
... minima.The rapid development of power electronics technology provides exciting opportunities to develop new power system equipment for better utilization of existing systems. This Article Presents an application of Fast Voltage Stabilty Index(FVSI) to identify the weak buses for the RPP problem usin ...
PWM5032 RadHard High Speed PWM Controller (3/15)
... The chip is a fixed frequency Pulse Width Modulator based on the industry standard UC1843x Series with significant enhancements in performance and functionality. The chip operates in either the voltage or current mode and can support a wide variety of converter topologies. Radiation hardened by desi ...
... The chip is a fixed frequency Pulse Width Modulator based on the industry standard UC1843x Series with significant enhancements in performance and functionality. The chip operates in either the voltage or current mode and can support a wide variety of converter topologies. Radiation hardened by desi ...
- Eurotherm plc
... Invensys, Eurotherm, the Eurotherm logo and Wonderware are trademarks of Invensys plc, its subsidiaries and affiliates. All other brands may be trademarks of their respective owners. All rights are strictly reserved. No part of this document may be reproduced, modified, or transmitted in any form by ...
... Invensys, Eurotherm, the Eurotherm logo and Wonderware are trademarks of Invensys plc, its subsidiaries and affiliates. All other brands may be trademarks of their respective owners. All rights are strictly reserved. No part of this document may be reproduced, modified, or transmitted in any form by ...
G7102 Single-Stage Flyback And PFC Controller With Primary-Side Control For LED Lighting
... feedback circuits, which would cut down the cost of the system. High power factor is achieved by constant on operation mode, with which the control scheme and the circuit structure are both simple. In order to reduce the switching losses and improve EMI performance, Quasi- Resonant switching mode is ...
... feedback circuits, which would cut down the cost of the system. High power factor is achieved by constant on operation mode, with which the control scheme and the circuit structure are both simple. In order to reduce the switching losses and improve EMI performance, Quasi- Resonant switching mode is ...
Lab 4 Voltage Divider and Bridge Circuits
... 9. Make a new column in your table labeled “Circuit Current” with the unit μA (microampere). Fill in the computed data. 10. Does the output voltage vary linearly or nonlinearly with the source voltage? 11. Does the circuit current vary linearly or nonlinearly with the source voltage? 12. Short out t ...
... 9. Make a new column in your table labeled “Circuit Current” with the unit μA (microampere). Fill in the computed data. 10. Does the output voltage vary linearly or nonlinearly with the source voltage? 11. Does the circuit current vary linearly or nonlinearly with the source voltage? 12. Short out t ...
part 1 general - Rockwell Automation
... The variable frequency drive shall be capable of operating a standard AC squirrel cage induction motor (standard AC synchronous motor, standard AC wound rotor induction motor) of equivalent power and speed rating over the speed range specified. Drives which require motors with higher insulation valu ...
... The variable frequency drive shall be capable of operating a standard AC squirrel cage induction motor (standard AC synchronous motor, standard AC wound rotor induction motor) of equivalent power and speed rating over the speed range specified. Drives which require motors with higher insulation valu ...
Power_Networks - University of British Columbia
... repetitive fast-front transients, the initial measurable indication is Partial Discharges(PD) in the insulation, such as motors driven by pulse modulated power electronics. It is important to understand the precursor deterioration processes. For example, generation of localized pockets of space char ...
... repetitive fast-front transients, the initial measurable indication is Partial Discharges(PD) in the insulation, such as motors driven by pulse modulated power electronics. It is important to understand the precursor deterioration processes. For example, generation of localized pockets of space char ...
A Novel Continuous-Time Common
... and input of the CMFB are connected to the output of the amplifier. Output voltage is sensed due to the variation of the threshold voltage according to bulk signal. Averaging the output sensed voltages to calculate the CM value, comparison to reference voltage and amplifying the error signal is done ...
... and input of the CMFB are connected to the output of the amplifier. Output voltage is sensed due to the variation of the threshold voltage according to bulk signal. Averaging the output sensed voltages to calculate the CM value, comparison to reference voltage and amplifying the error signal is done ...
SERVICE MANUAL
... 1. The EHT must be checked every time the TV is serviced to ensure that the CRT does not emit X-ray radiation as result of excessive EHT voltage. The maximum EHT voltage permissible in any operating circumstances must not exceed the rated value. When checking the EHT, use the High Voltage Check proc ...
... 1. The EHT must be checked every time the TV is serviced to ensure that the CRT does not emit X-ray radiation as result of excessive EHT voltage. The maximum EHT voltage permissible in any operating circumstances must not exceed the rated value. When checking the EHT, use the High Voltage Check proc ...
VGA 400.2 VGA 600.2 VGA 800.2 VGA 1600.2 VGA 320.4 VGA
... You now own the Limited Edition VGA Amplifier, the product of an uncompromising design and engineering philosophy. Your Soundstream VGA will outperform any other amplifier in the world. To maximize the performance of your system, we recommend that you thoroughly acquaint yourself with its capabiliti ...
... You now own the Limited Edition VGA Amplifier, the product of an uncompromising design and engineering philosophy. Your Soundstream VGA will outperform any other amplifier in the world. To maximize the performance of your system, we recommend that you thoroughly acquaint yourself with its capabiliti ...
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.