BH4301327332
... the input voltage. This converter has four switching states which include all the switching states of the common DC-DC converters. In addition there is one switching state which provides a degree of freedom for the positive Buck-Boost converter in comparison to the Buck, Boost, and inverting Buck-Bo ...
... the input voltage. This converter has four switching states which include all the switching states of the common DC-DC converters. In addition there is one switching state which provides a degree of freedom for the positive Buck-Boost converter in comparison to the Buck, Boost, and inverting Buck-Bo ...
Vacuum Circuit Breaker Technology
... C37.04-1999, the rated TRV is represented by a 1-cosine wave, while on the other hand, in IEC 62271-100, 2003 the TRV is represented by an exponential-cosine wave as shown in Table 2 and Fig. 9. These ratings are for shortcircuit tests, duty 4 and duty 5 in IEEE C37.09 and for terminal fault test, d ...
... C37.04-1999, the rated TRV is represented by a 1-cosine wave, while on the other hand, in IEC 62271-100, 2003 the TRV is represented by an exponential-cosine wave as shown in Table 2 and Fig. 9. These ratings are for shortcircuit tests, duty 4 and duty 5 in IEEE C37.09 and for terminal fault test, d ...
Philippe Proost electrically adjustable hydraulic valve Sensorless
... An electric model for the solenoid is built. The electrical parameters, resistance and inductance, are identified using a LCR meter. Based upon these measurements, a suitable frequency range for position sensing is identified. For frequencies between 250 Hz and 500 Hz changes up to 38% with regard t ...
... An electric model for the solenoid is built. The electrical parameters, resistance and inductance, are identified using a LCR meter. Based upon these measurements, a suitable frequency range for position sensing is identified. For frequencies between 250 Hz and 500 Hz changes up to 38% with regard t ...
NCP1251 - ONSemi
... winding to the dedicated OPP pin (pin 3), the user has a simple and non−dissipative means to alter the maximum peak current setpoint as the bulk voltage increases. If the pin is grounded, no OPP compensation occurs. If the pin receives a negative voltage down to –250 mV, then a peak current reductio ...
... winding to the dedicated OPP pin (pin 3), the user has a simple and non−dissipative means to alter the maximum peak current setpoint as the bulk voltage increases. If the pin is grounded, no OPP compensation occurs. If the pin receives a negative voltage down to –250 mV, then a peak current reductio ...
4.5V to 18V Input, 5A/5A Dual Synchronous Step
... Each buck converter in TPS65279V can also be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode and reading the power good status and die temperature warning. The switching frequency of the converters can be set from 200 kHz to 1.6 MHz with an external resistor. Tw ...
... Each buck converter in TPS65279V can also be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode and reading the power good status and die temperature warning. The switching frequency of the converters can be set from 200 kHz to 1.6 MHz with an external resistor. Tw ...
AMES Sample
... In the previous activity, we observed that alternating current behaves quite differently from direct current. The first observation was with the motion of the electrons. Instead of flowing around the circuit, they stayed relatively close to where they began, moved in one direction, and then moved ba ...
... In the previous activity, we observed that alternating current behaves quite differently from direct current. The first observation was with the motion of the electrons. Instead of flowing around the circuit, they stayed relatively close to where they began, moved in one direction, and then moved ba ...
4.5V to 18V Input, 5A/5A Dual Synchronous
... Each buck converter in TPS65279V can also be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode and reading the power good status and die temperature warning. The switching frequency of the converters can be set from 200 kHz to 1.6 MHz with an external resistor. Tw ...
... Each buck converter in TPS65279V can also be I2C controlled for enabling/disabling output voltage, setting the pulse skipping mode and reading the power good status and die temperature warning. The switching frequency of the converters can be set from 200 kHz to 1.6 MHz with an external resistor. Tw ...
Acme 3-Phase Distribution Transformers
... A 3-phase transformer must be selected so that any one phase is not overloaded. Each phase should have the additional 4kVA rating required by the heater even though the heater will operate on one phase only. So, the transformer should have a minimum kVA rating of 28.2 + 4 + 4 + 4 or 40.2 kVA. Refer ...
... A 3-phase transformer must be selected so that any one phase is not overloaded. Each phase should have the additional 4kVA rating required by the heater even though the heater will operate on one phase only. So, the transformer should have a minimum kVA rating of 28.2 + 4 + 4 + 4 or 40.2 kVA. Refer ...
Analysis of high frequency harmonics injected by wind turbines in a
... increase in the power rating of the turbines. The turbines that are installed in Sweden today usually have a maximum power of 0.8-2 MW. But there are turbines with a maximum power of 6 MW that are available on the market. It is clear that the development towards renewable energy sources has a positi ...
... increase in the power rating of the turbines. The turbines that are installed in Sweden today usually have a maximum power of 0.8-2 MW. But there are turbines with a maximum power of 6 MW that are available on the market. It is clear that the development towards renewable energy sources has a positi ...
A novel energyretaining inverter for AC arc welding machines
... of arc welding drivers. For this reason, a brand new digital control method is thus proposed [20–23]. In order to reduce the input current harmonics phenomenon [24–29], PFC is added in the pre-stage of the inverter [20]. ZVS and ZCS [30–41] are also utilized to improve the efficiency of the inverter ...
... of arc welding drivers. For this reason, a brand new digital control method is thus proposed [20–23]. In order to reduce the input current harmonics phenomenon [24–29], PFC is added in the pre-stage of the inverter [20]. ZVS and ZCS [30–41] are also utilized to improve the efficiency of the inverter ...
Modelling and Simulation of Step-Up and Step
... differentiator filtered to reduce the high frequency of the output signal and thus prevent numerical oscillations. The time constant Tδ is about 0.005s. The filtered differentiator can also introduce the initial value of phase shift depending on other initialization values of the model. The input qu ...
... differentiator filtered to reduce the high frequency of the output signal and thus prevent numerical oscillations. The time constant Tδ is about 0.005s. The filtered differentiator can also introduce the initial value of phase shift depending on other initialization values of the model. The input qu ...
Advanced Monolithic Systems
... the part will oscillate. Most types of tantalum or aluminum electrolytic works fine here; even film types work but are not recommended for reasons of cost. Many aluminum types have electrolytes that freeze at about -30°C, so solid tantalums are recommended for operation below -25°C. The important pa ...
... the part will oscillate. Most types of tantalum or aluminum electrolytic works fine here; even film types work but are not recommended for reasons of cost. Many aluminum types have electrolytes that freeze at about -30°C, so solid tantalums are recommended for operation below -25°C. The important pa ...
James Samual`s Thesis Proposal
... Safety can be ensured by using a thermocouple. The thermocouple will shut off the power supply if the dissipated heat is in excess of a threshold. The threshold has not been determined but can be determined by experimenting. With every 10°C rise in temperature, the reliability of the circuit is decr ...
... Safety can be ensured by using a thermocouple. The thermocouple will shut off the power supply if the dissipated heat is in excess of a threshold. The threshold has not been determined but can be determined by experimenting. With every 10°C rise in temperature, the reliability of the circuit is decr ...
STM1831
... Output voltage vs. sense voltage, VDET = 2.4 V, TA = 25 °C, external pull-up resistor on RST is 100 kΩ, CD pin open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Output voltage vs. supply voltage, VSEN = VCC, external pull-up resistor on RST is 100 kΩ, ...
... Output voltage vs. sense voltage, VDET = 2.4 V, TA = 25 °C, external pull-up resistor on RST is 100 kΩ, CD pin open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Output voltage vs. supply voltage, VSEN = VCC, external pull-up resistor on RST is 100 kΩ, ...
A Draft Standard Glossary of Power Quality - Working Group
... along conductors or radiated due to corona discharge and partial breakdown, lightning strikes (which have strong fields associated with them), and many other phenomena. As an example, a cloud-to-ground lightning flash involves a massive electrical breakdown of the air dieletric between cloud and gro ...
... along conductors or radiated due to corona discharge and partial breakdown, lightning strikes (which have strong fields associated with them), and many other phenomena. As an example, a cloud-to-ground lightning flash involves a massive electrical breakdown of the air dieletric between cloud and gro ...
AN-4151 Half-Bridge LLC Resonant Converter Design Using ™) FSFR-Series Fairchild Power Switch (FPS
... On the other hand, above resonance operation has less conduction loss than the below resonance operation. It can show better efficiency for low output voltage applications, such as Liquid Crystal Display (LCD) TV or laptop adaptor, where Schottky diodes are available for the secondary-side rectifier ...
... On the other hand, above resonance operation has less conduction loss than the below resonance operation. It can show better efficiency for low output voltage applications, such as Liquid Crystal Display (LCD) TV or laptop adaptor, where Schottky diodes are available for the secondary-side rectifier ...
LTC6990 - TimerBlox: Voltage Controlled Silicon Oscillator
... Note 6: The OE pin has hysteresis to accommodate slow rising or falling signals. The threshold voltages are proportional to V+. Typical values can be estimated at any supply voltage using VOE(RISING) ≈ 0.55 • V+ + 185mV and VOE(FALLING) ≈ 0.48 • V+ – 155mV. Note 7: To conform to the Logic IC Standar ...
... Note 6: The OE pin has hysteresis to accommodate slow rising or falling signals. The threshold voltages are proportional to V+. Typical values can be estimated at any supply voltage using VOE(RISING) ≈ 0.55 • V+ + 185mV and VOE(FALLING) ≈ 0.48 • V+ – 155mV. Note 7: To conform to the Logic IC Standar ...
NCP1653, NCP1653A Compact, Fixed−Frequency, Continuous
... The NCP1653 is a Power Factor Correction (PFC) boost controller designed to operate in fixed−frequency Continuous Conduction Mode (CCM). It can operate in either peak current−mode or average current−mode. Fixed−frequency operation eases the compliance with EMI standards and the limitation of the pos ...
... The NCP1653 is a Power Factor Correction (PFC) boost controller designed to operate in fixed−frequency Continuous Conduction Mode (CCM). It can operate in either peak current−mode or average current−mode. Fixed−frequency operation eases the compliance with EMI standards and the limitation of the pos ...
An Op Amp Tutorial - W. Marshall Leach, Jr.
... is a step and that the initial value of the output voltage is zero. Transient response measurements on op amps are usually made with a square-wave input signal, not a step. A square wave can be written as a series of steps. Thus it may seem that the results obtained for the step can be applied direc ...
... is a step and that the initial value of the output voltage is zero. Transient response measurements on op amps are usually made with a square-wave input signal, not a step. A square wave can be written as a series of steps. Thus it may seem that the results obtained for the step can be applied direc ...
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.""