comparison and analysis of three-level converters versus two
... maintenance, less installation and commissioning time and costs, size and weight savings, low noise and vibration levels, optimized machinery room design as well as improved power plant performance[3]. Electric propulsion has been applied to ships via direct current motors for more than a century. E ...
... maintenance, less installation and commissioning time and costs, size and weight savings, low noise and vibration levels, optimized machinery room design as well as improved power plant performance[3]. Electric propulsion has been applied to ships via direct current motors for more than a century. E ...
Electronically Tunable Floating Capacitance Multiplier Using FB
... from the use of a large silicon chip area [1]. Consequently, several capacitance multiplier implementations using various modern active elements are available in the open technical literature [2]-[14]. However, they need either two of more active devices or more than one passive element for their re ...
... from the use of a large silicon chip area [1]. Consequently, several capacitance multiplier implementations using various modern active elements are available in the open technical literature [2]-[14]. However, they need either two of more active devices or more than one passive element for their re ...
Power conversion in line powered equipment
... Where VIN is the average DC from the transformer, IGND is the ground pin current at full load (see data sheet), and IL is the output current. The LM3940 is the low dropout regulator chosen for the 3.3V output at 1 ADC. VIN is approximately 5.5 VDC, and the calculated power loss is 2.8W (IGND = 110 m ...
... Where VIN is the average DC from the transformer, IGND is the ground pin current at full load (see data sheet), and IL is the output current. The LM3940 is the low dropout regulator chosen for the 3.3V output at 1 ADC. VIN is approximately 5.5 VDC, and the calculated power loss is 2.8W (IGND = 110 m ...
AG21195206
... During its operation Flyback converter assumes deferent circuit configuration each of these circuit configurations have been refer here as modes of circuit operation. The complete operation of the power supply circuit is explained with the help of functionally equivalent circuits in these deferent m ...
... During its operation Flyback converter assumes deferent circuit configuration each of these circuit configurations have been refer here as modes of circuit operation. The complete operation of the power supply circuit is explained with the help of functionally equivalent circuits in these deferent m ...
ELECTRONIC DEVICES AND CIRCUITS LAB #1
... Apply the red meter lead (+) to the anode and the black lead (- or gnd or com) to the cathode . Record your reading as “OPEN” or “CONDUCTING” ...
... Apply the red meter lead (+) to the anode and the black lead (- or gnd or com) to the cathode . Record your reading as “OPEN” or “CONDUCTING” ...
A New Building Block to Light the Way to Rapid Ballast
... During run mode, if the voltage at the VS pin has not slewed entirely to COM during the dead-time such that there is voltage between the drain and source of the external lowside half-bridge MOSFET when LO turns-on, then the system is operating too close to, or, on the capacitive side of, resonance. ...
... During run mode, if the voltage at the VS pin has not slewed entirely to COM during the dead-time such that there is voltage between the drain and source of the external lowside half-bridge MOSFET when LO turns-on, then the system is operating too close to, or, on the capacitive side of, resonance. ...
ESBT STC03DE170 IN 3-PHASE AUXILIARY POWER SUPPLY
... rectified input of an off-line converter, as illustrated by figure 6. During normal circuit operation, VCC is developed from auxiliary winding WAUX with D1 and CIN. At start-up, however, CIN must be charged to 16 V through RIN. With a start-up current of 1 mA, RIN can be as large as 100 kΩ and still ...
... rectified input of an off-line converter, as illustrated by figure 6. During normal circuit operation, VCC is developed from auxiliary winding WAUX with D1 and CIN. At start-up, however, CIN must be charged to 16 V through RIN. With a start-up current of 1 mA, RIN can be as large as 100 kΩ and still ...
DB_MS8883A
... should be in the range 10pF to 60pF, the optimum point being around 30pF. These conditions allow the control loop to adapt to the static capacitance on CS and to compensate for slow changes in the sensing plate capacitance. A higher capacitive input loading is possible (maximum 200pF) provided that ...
... should be in the range 10pF to 60pF, the optimum point being around 30pF. These conditions allow the control loop to adapt to the static capacitance on CS and to compensate for slow changes in the sensing plate capacitance. A higher capacitive input loading is possible (maximum 200pF) provided that ...
GF2211111118
... transformer terminals of a large power distribution network. The transformers are the most expensive equipments in the power system.Their protection therefore is a matter of utmost importance. Before proceeding to take protective measures ,it is necessary to have an idea about the frequency and the ...
... transformer terminals of a large power distribution network. The transformers are the most expensive equipments in the power system.Their protection therefore is a matter of utmost importance. Before proceeding to take protective measures ,it is necessary to have an idea about the frequency and the ...
... Please select the value of inrush current limiting resistor R1 depending on the load factor. Fig. 4.2 shows the upper limit of the resistance of inrush current limiting resistor. Please select the resistance of power thermistor or resistor to be less than the value of upper limit. Note that the resi ...
The Equivalent Circuit of a Transformer
... • It involves interchange of electric energy between two or more electric systems • Transformers provide much needed capability of changing the voltage and current levels easily. – They are used to step-up generator voltage to an appropriate voltage level for power transfer. – Stepping down the tran ...
... • It involves interchange of electric energy between two or more electric systems • Transformers provide much needed capability of changing the voltage and current levels easily. – They are used to step-up generator voltage to an appropriate voltage level for power transfer. – Stepping down the tran ...
HMC721LP3E 数据资料DataSheet下载
... The HMC721LP3E is a XOR/XNOR gate function designed to support data transmission rates of up to 14 Gbps, and clock frequencies as high as 14 GHz. All differential inputs to the HMC721LP3E are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. Outputs ca ...
... The HMC721LP3E is a XOR/XNOR gate function designed to support data transmission rates of up to 14 Gbps, and clock frequencies as high as 14 GHz. All differential inputs to the HMC721LP3E are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. Outputs ca ...
I s
... • It involves interchange of electric energy between two or more electric systems • Transformers provide much needed capability of changing the voltage and current levels easily. – They are used to step-up generator voltage to an appropriate voltage level for power transfer. – Stepping down the tran ...
... • It involves interchange of electric energy between two or more electric systems • Transformers provide much needed capability of changing the voltage and current levels easily. – They are used to step-up generator voltage to an appropriate voltage level for power transfer. – Stepping down the tran ...
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.""