
Soundelux ELUX 251 - Mastering Mansion
... radiating heat. The P251 power supply is a significant improvement over the old M251E's unregulated power supply. The original supply emitted an acoustical noise and, as it was unregulated, “shocked” the capsule with an excessive momentary spike of polarizing voltage when the microphone was first tu ...
... radiating heat. The P251 power supply is a significant improvement over the old M251E's unregulated power supply. The original supply emitted an acoustical noise and, as it was unregulated, “shocked” the capsule with an excessive momentary spike of polarizing voltage when the microphone was first tu ...
isolation transformer
... impedance in a transformer are proportional to the turns ratio. 2. The primary winding of a transformer is connected to the source voltage. 3. The secondary winding is connected to the load. ...
... impedance in a transformer are proportional to the turns ratio. 2. The primary winding of a transformer is connected to the source voltage. 3. The secondary winding is connected to the load. ...
NERC Synchronizing Islands
... breaker are in synchronism. It also requires the systems be within a set phase angle. (Typically 20 degrees) Since the application and use of synch-check relays varies from system to system, we recommend additional training that is specific to your system. The sync-check relay does not provide a v ...
... breaker are in synchronism. It also requires the systems be within a set phase angle. (Typically 20 degrees) Since the application and use of synch-check relays varies from system to system, we recommend additional training that is specific to your system. The sync-check relay does not provide a v ...
here - SC B4
... information and data on converter transformers operating experience. Last survey was performed in 2011 by AG B4-04. The failures for the years 2009 and 2010 were reported. Please report failures for the years 2011 and 2012 and any other failure for the previous years which may not have been reported ...
... information and data on converter transformers operating experience. Last survey was performed in 2011 by AG B4-04. The failures for the years 2009 and 2010 were reported. Please report failures for the years 2011 and 2012 and any other failure for the previous years which may not have been reported ...
B.E 2/4 - I II Semester (Autonomous) (NEW)
... Course Objectives: Students will acquire basic knowledge in thermodynamics and its applications, mechanisms of power transmitting devices and can understand the working principles of hydraulic turbines and pumps. Course Outcomes: Students can understand the working principles of I.C engines, refrige ...
... Course Objectives: Students will acquire basic knowledge in thermodynamics and its applications, mechanisms of power transmitting devices and can understand the working principles of hydraulic turbines and pumps. Course Outcomes: Students can understand the working principles of I.C engines, refrige ...
Heater Controls & Components
... on the bottom of the drawing, as you would normally hold it, but the example on the bottom has it’s reference pointer pointing to the right, both are outputs. The top right drawing section has a reference pointer coming in from the top, this indicates an input and shows where the input is coming fro ...
... on the bottom of the drawing, as you would normally hold it, but the example on the bottom has it’s reference pointer pointing to the right, both are outputs. The top right drawing section has a reference pointer coming in from the top, this indicates an input and shows where the input is coming fro ...
BD9329AEFJ
... VOUT is the Output Voltage fCRS is the Cross Over Frequency COUT is the Output Capacitor VFB is the Internal Feedback Voltage (0.9V(TYP)) GMP is the Current Sense Gain (7.8A/V(TYP)) GMA is the Error Amplifier Transconductance (300µA/V(TYP)) ...
... VOUT is the Output Voltage fCRS is the Cross Over Frequency COUT is the Output Capacitor VFB is the Internal Feedback Voltage (0.9V(TYP)) GMP is the Current Sense Gain (7.8A/V(TYP)) GMA is the Error Amplifier Transconductance (300µA/V(TYP)) ...
DC/DC converter
... PIN DPR This terminal is used to measure the voltage drop across the turned-on power transistor in order to ensure protection from short circuit and overload of the IGBT. This involves monitoring the collector voltage and turning off the device if this voltage rises above a certain limit. The best m ...
... PIN DPR This terminal is used to measure the voltage drop across the turned-on power transistor in order to ensure protection from short circuit and overload of the IGBT. This involves monitoring the collector voltage and turning off the device if this voltage rises above a certain limit. The best m ...
AN-912 Common Data Transmission Parameters and their Definitions
... at a specific power supply level. Additionally the driver is biased such that it is enabled, with the specified power supply voltage applied. This parameter assures that the driver is disabled by an internal circuit at the specified power supply level, even though the enable pin is active. If the dr ...
... at a specific power supply level. Additionally the driver is biased such that it is enabled, with the specified power supply voltage applied. This parameter assures that the driver is disabled by an internal circuit at the specified power supply level, even though the enable pin is active. If the dr ...
Sub-Module Integrated Distributed Maximum Power Point Tracking
... power captured is not wasted by low conversion efficiency of the power electronics. Much care was thus taken in this work to achieve high efficiency operation, both through the choice of topology and passive components, as well as the implementation of sensing and control. A detailed description of ...
... power captured is not wasted by low conversion efficiency of the power electronics. Much care was thus taken in this work to achieve high efficiency operation, both through the choice of topology and passive components, as well as the implementation of sensing and control. A detailed description of ...
5 marks - Sheffield Hallam University
... efficiency of the system of Part (a) as a power generator. (8 marks) (c) Explain the operation of a dehumidifier for reducing dampness in building interiors. (8 marks) [TOTAL 25 MARKS] ...
... efficiency of the system of Part (a) as a power generator. (8 marks) (c) Explain the operation of a dehumidifier for reducing dampness in building interiors. (8 marks) [TOTAL 25 MARKS] ...
BD9111NV
... 5. Consideration on Permissible Dissipation and Heat Generation Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including l ...
... 5. Consideration on Permissible Dissipation and Heat Generation Since this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including l ...
TPS61060 数据资料 dataSheet 下载
... and battery life. Using the digital interface to control the LED brightness does not required a PWM signal all the time, and the processor can enter sleep mode if available. To save signal lines, the ILED pin can be connected to the enable pin to allow digital programming and enable/disable function ...
... and battery life. Using the digital interface to control the LED brightness does not required a PWM signal all the time, and the processor can enter sleep mode if available. To save signal lines, the ILED pin can be connected to the enable pin to allow digital programming and enable/disable function ...
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.