Practical Simulation and Modelling of Lightning Impulse Voltage
... of peak value and peak value voltage are needed. Impulse waveforms can be produced in the laboratory by combination of series R-L-C circuit or by combination of R-C circuits [3]. The front time and tail time can be varied by varying the circuit parameters. Wave shape control is generally carried out ...
... of peak value and peak value voltage are needed. Impulse waveforms can be produced in the laboratory by combination of series R-L-C circuit or by combination of R-C circuits [3]. The front time and tail time can be varied by varying the circuit parameters. Wave shape control is generally carried out ...
A Portable 2-Transistor Picowatt Temperature
... very little power. One example is the use of such references in voltage regulators that operate during nW or pW-level sleep modes. The area should be minimized as well, particularly for implantable biomedical applications where smaller device size translates to less invasive surgeries. These restric ...
... very little power. One example is the use of such references in voltage regulators that operate during nW or pW-level sleep modes. The area should be minimized as well, particularly for implantable biomedical applications where smaller device size translates to less invasive surgeries. These restric ...
Four-Channel DC/DC Controller for Notebook
... N-channel power MOSFETs. The nonsynchronous boost converter includes the N channel power MOSFET and supports 120 mA for the PCMCIA power supply. The outputs are controlled independently and two of the synchronous-buck controllers operate 180 degrees out of phase, with the third lowering the input cu ...
... N-channel power MOSFETs. The nonsynchronous boost converter includes the N channel power MOSFET and supports 120 mA for the PCMCIA power supply. The outputs are controlled independently and two of the synchronous-buck controllers operate 180 degrees out of phase, with the third lowering the input cu ...
- Notesvillage
... directly it 3 φ supply. The impendence of motor at standstill is relatively low and when it is directly connected to the supply system, the current at starting will be high (4 to 10 times the full load current) and at a low power factor. Consequently this method in suitable for relatively small mach ...
... directly it 3 φ supply. The impendence of motor at standstill is relatively low and when it is directly connected to the supply system, the current at starting will be high (4 to 10 times the full load current) and at a low power factor. Consequently this method in suitable for relatively small mach ...
MAX1705/MAX1706 1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear Regulator
... The MAX1705/MAX1706 are high-efficiency, low-noise, step-up DC-DC converters with an auxiliary linearregulator output. These devices are intended for use in battery-powered wireless applications. They use a synchronous rectifier pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V ou ...
... The MAX1705/MAX1706 are high-efficiency, low-noise, step-up DC-DC converters with an auxiliary linearregulator output. These devices are intended for use in battery-powered wireless applications. They use a synchronous rectifier pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V ou ...
Title Reference Design Report for a 150 W Power Factor Corrected
... The schematic in Figure 3 shows the input EMI filter, PFC stage, and primary bias supply/start-up circuit. The power factor corrector utilizes the PFS708EG PFC controller with integrated power MOSFET and the LQA05TC600 low QRR, soft switching diode. The bias supply is a non-isolated flyback using th ...
... The schematic in Figure 3 shows the input EMI filter, PFC stage, and primary bias supply/start-up circuit. The power factor corrector utilizes the PFS708EG PFC controller with integrated power MOSFET and the LQA05TC600 low QRR, soft switching diode. The bias supply is a non-isolated flyback using th ...
LTC3109 - Auto-Polarity, Ultralow Voltage Step
... step-up DC/DC converter and power manager that can operate from input voltages of either polarity. This unique capability enables energy harvesting from thermoelectric generators (TEGs) in applications where the temperature differential across the TEG may be of either (or unknown) polarity. It can a ...
... step-up DC/DC converter and power manager that can operate from input voltages of either polarity. This unique capability enables energy harvesting from thermoelectric generators (TEGs) in applications where the temperature differential across the TEG may be of either (or unknown) polarity. It can a ...
LT8631 - 100V, 1A Synchronous Micropower
... power switch. The VIN pin has high dI/dt edges and must be decoupled to the GND pin of the device. The input decouple capacitor should be placed as close as possible to the VIN and GND pins. EN/UV (Pin 3): The EN/UV pin is used to enable the LT8631 or to program the undervoltage lockout threshold wi ...
... power switch. The VIN pin has high dI/dt edges and must be decoupled to the GND pin of the device. The input decouple capacitor should be placed as close as possible to the VIN and GND pins. EN/UV (Pin 3): The EN/UV pin is used to enable the LT8631 or to program the undervoltage lockout threshold wi ...
MAX16826 Programmable, Four-String HB LED Driver with Output-Voltage Optimization and Fault Detection
... designed for backlighting automotive LCD displays and other display applications such as industrial or desktop monitors and LCD televisions. The MAX16826 integrates a switching regulator controller, a 4-channel linear current sink driver, an analog-to-digital converter (ADC), and an I2C interface. T ...
... designed for backlighting automotive LCD displays and other display applications such as industrial or desktop monitors and LCD televisions. The MAX16826 integrates a switching regulator controller, a 4-channel linear current sink driver, an analog-to-digital converter (ADC), and an I2C interface. T ...
DESIGN AND FABRICATION OF SINGLE PHASE INDUCTION
... varied from zero to a maximum value [1]. These motors have the advantage that their rotational speed can be varied within limits without the use of auxiliary apparatus [2] 2.4.3 Single Phase Synchronous Motors These are very small single-phase motors which run at real synchronous speed [1]. ...
... varied from zero to a maximum value [1]. These motors have the advantage that their rotational speed can be varied within limits without the use of auxiliary apparatus [2] 2.4.3 Single Phase Synchronous Motors These are very small single-phase motors which run at real synchronous speed [1]. ...
Transformer
... between primary and secondary; transformers are grouped. This is done for ease of paralleling. Usually transformers between two different groups should not be paralleled. •Group 1 :zero phase displacement (Yy0, Dd0,Dz0) ...
... between primary and secondary; transformers are grouped. This is done for ease of paralleling. Usually transformers between two different groups should not be paralleled. •Group 1 :zero phase displacement (Yy0, Dd0,Dz0) ...
Control Strategy of Single-Phase Three Level Neutral Point
... the results are verified by experiment. With regard to neutral point voltage fluctuation problem in each module, a redundancy-based strategy used along with phase shift carrier space vector pulse width modulation (PSC-SVPWM) and two hardware-based balancing auxiliary circuits, including inductor-bas ...
... the results are verified by experiment. With regard to neutral point voltage fluctuation problem in each module, a redundancy-based strategy used along with phase shift carrier space vector pulse width modulation (PSC-SVPWM) and two hardware-based balancing auxiliary circuits, including inductor-bas ...
investigation of numerical technique to evaluate frequency response
... Power and distribution transformers are expensive and important units in electric power networks. Majority of dielectric and mechanical failures in transformers are due to mechanical displacements in the winding structure. Detection of these winding displacements in advance of a dielectric failure c ...
... Power and distribution transformers are expensive and important units in electric power networks. Majority of dielectric and mechanical failures in transformers are due to mechanical displacements in the winding structure. Detection of these winding displacements in advance of a dielectric failure c ...
Causes and Effects of Transient Voltages
... file:///C|/Users/Shannon/Documents/Causes%20and%20Effects%20of%20Transient%20Voltages.htm[06/11/2013 12:09:22 PM] ...
... file:///C|/Users/Shannon/Documents/Causes%20and%20Effects%20of%20Transient%20Voltages.htm[06/11/2013 12:09:22 PM] ...
LT8630 - 100V, 0.6A Synchronous Micropower
... mode step-down DC/DC converter. When the voltage on the EN/UV pin is below its 1.19V threshold, the LT8630 is shutdown and draws less than 5µA from the input supply. When the EN/UV pin is driven above 1.19V, the internal bias circuits turn on generating an internal regulated voltage, 0.808V feedback ...
... mode step-down DC/DC converter. When the voltage on the EN/UV pin is below its 1.19V threshold, the LT8630 is shutdown and draws less than 5µA from the input supply. When the EN/UV pin is driven above 1.19V, the internal bias circuits turn on generating an internal regulated voltage, 0.808V feedback ...
Measurement.
... generating voltmeters are : 1)No source loading by the meter 2)No direct connection to the HV electrode 3)Scale is linear and extension Dr M A Panneerselvam, Professor, Anna University ...
... generating voltmeters are : 1)No source loading by the meter 2)No direct connection to the HV electrode 3)Scale is linear and extension Dr M A Panneerselvam, Professor, Anna University ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""