Un resumen (ivonne).pmd - Ingeniería Energética
... The interior permanent magnet synchronous motor (IPMSM) possesses special features for adjustable speed operation that distinguish it from other type of AC machines. Because of its special rotor configuration, pole saliency and relatively large armature inductances, the IPM is also more suitable for ...
... The interior permanent magnet synchronous motor (IPMSM) possesses special features for adjustable speed operation that distinguish it from other type of AC machines. Because of its special rotor configuration, pole saliency and relatively large armature inductances, the IPM is also more suitable for ...
Q POINT
... The distortion or output waveform depends on the position of Q-point. The Q-point can be in three operating regions of transistors namely –cut-off, saturation and active region. Q-point in active region When transistor is used as amplifier, the Q-point is placed in active region and most preferabl ...
... The distortion or output waveform depends on the position of Q-point. The Q-point can be in three operating regions of transistors namely –cut-off, saturation and active region. Q-point in active region When transistor is used as amplifier, the Q-point is placed in active region and most preferabl ...
ACS756 - Allegro Microsystems
... circuit with a copper conduction path located near the die. Applied current flowing through this copper conduction path generates a magnetic field which the Hall IC converts into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall trans ...
... circuit with a copper conduction path located near the die. Applied current flowing through this copper conduction path generates a magnetic field which the Hall IC converts into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall trans ...
Basics of Voltage-Level Translation
... • The input pins of the receiving device must be specified as tolerant of the higher voltage device. • The logic swing must pass through VIL and VIH voltage levels specified for the receiving device. If the low voltage device is the driver, the circuit typically cannot function properly without the ...
... • The input pins of the receiving device must be specified as tolerant of the higher voltage device. • The logic swing must pass through VIL and VIH voltage levels specified for the receiving device. If the low voltage device is the driver, the circuit typically cannot function properly without the ...
Electromagnetic Transients Simulation Models for Accurate
... HE insulated gate bipolar transistor (IGBT) is widely used in many modern power-electronic applications in power transmission and distribution systems. Estimation of power loss and junction temperature of power semiconductor devices has become a major issue with the growth of high switching frequenc ...
... HE insulated gate bipolar transistor (IGBT) is widely used in many modern power-electronic applications in power transmission and distribution systems. Estimation of power loss and junction temperature of power semiconductor devices has become a major issue with the growth of high switching frequenc ...
REVIEW OF ENERGY SAVING TECHNIQUES FOR THREE PHASE
... increased investment cost. But using of this motor will repay the investment cost in short period of time [3]. Instead of balancing copper loss and iron loss Adaptive search controller technique is used to control the motor for on line loss minimization (Flux optimization). This technique searches t ...
... increased investment cost. But using of this motor will repay the investment cost in short period of time [3]. Instead of balancing copper loss and iron loss Adaptive search controller technique is used to control the motor for on line loss minimization (Flux optimization). This technique searches t ...
Driving apparatus and method of three phase induction motor
... Operation poWer is supplied to the ?rst photocoupler IS01 and to the transistors Q3 and Q4 through Vcc2. An emitter of the second NPN transistor Q3 and an emitter of the ?rst PNP transistor Q4 are connected in series to each other. When the photocoupler IS01 is in an ON state, the ?rst PNP transisto ...
... Operation poWer is supplied to the ?rst photocoupler IS01 and to the transistors Q3 and Q4 through Vcc2. An emitter of the second NPN transistor Q3 and an emitter of the ?rst PNP transistor Q4 are connected in series to each other. When the photocoupler IS01 is in an ON state, the ?rst PNP transisto ...
CT800001EN
... Leak testing before and in combination with a cantilever load, after thermal cycling, will test the seal between the insulation and the cast aluminum conductor. The test protocol will verify that the seal will withstand the temperature extremes without leaking or being otherwise damaged. ...
... Leak testing before and in combination with a cantilever load, after thermal cycling, will test the seal between the insulation and the cast aluminum conductor. The test protocol will verify that the seal will withstand the temperature extremes without leaking or being otherwise damaged. ...
iii. generator-side power smoothing control
... The parameter γ is called peak enhancement factor which controls the sharpness of the spectral peak. γ = 3.3 is the mean value determined for the North Sea. Larger value can be chosen to reflect the sharp peak characteristic of swell waves. The swell spectrum for engineering applications can be appr ...
... The parameter γ is called peak enhancement factor which controls the sharpness of the spectral peak. γ = 3.3 is the mean value determined for the North Sea. Larger value can be chosen to reflect the sharp peak characteristic of swell waves. The swell spectrum for engineering applications can be appr ...
closed-form solution of a three-phase voltage
... Keywords: Closed-form solution, Voltage-source inverter, Induction motor, Steady-state analysis, numerical solution. 1. Introduction The voltage-source inverters are commonly used in speed control of three-phase induction motors from a DC supply. By controlling the switching elements in the voltage- ...
... Keywords: Closed-form solution, Voltage-source inverter, Induction motor, Steady-state analysis, numerical solution. 1. Introduction The voltage-source inverters are commonly used in speed control of three-phase induction motors from a DC supply. By controlling the switching elements in the voltage- ...
Symbols and Terminology
... Unit: s-1, Hz (Hertz) fc, fcd cut-off frequency – detector devices The frequency at which, for constant signal modulation depth of the input radiant power, the demodulated signal power has decreased to ½ of its low frequency value. Example: The incident radiation generates a photocurrent or a photo ...
... Unit: s-1, Hz (Hertz) fc, fcd cut-off frequency – detector devices The frequency at which, for constant signal modulation depth of the input radiant power, the demodulated signal power has decreased to ½ of its low frequency value. Example: The incident radiation generates a photocurrent or a photo ...
Power System Reliability: adequacy-long term planning
... Reactive power plays an important role in EHV transmission system planning and hence forecast of reactive power demand on an area-wise or substation-wise basis is as important as active power forecast. …………………… ……………………………………………… This will require compilation of past data in order to arrive at reaso ...
... Reactive power plays an important role in EHV transmission system planning and hence forecast of reactive power demand on an area-wise or substation-wise basis is as important as active power forecast. …………………… ……………………………………………… This will require compilation of past data in order to arrive at reaso ...
Half- and Full-Wave Rectifiers
... – Used to change 120V 60Hz to direct current • Charging batteries in laptops, ipods, cell phones, etc. • Used to supply logic levels in desktop computers ...
... – Used to change 120V 60Hz to direct current • Charging batteries in laptops, ipods, cell phones, etc. • Used to supply logic levels in desktop computers ...
MAX9890 Audio Click-Pop Suppressor General Description Features
... ness (on-resistance flatness is defined as the difference between the maximum and minimum values of on-resistance measured over the specific analog-signal range). ...
... ness (on-resistance flatness is defined as the difference between the maximum and minimum values of on-resistance measured over the specific analog-signal range). ...
Description Features Absolute Maximum Ratings Recommended
... a relatively high impedance at RF, and RF current flows through R2, C1, and C2. A voltage doubler comprised of C2, D4 and D5 rectifies the RF into a negative DC output. The resulting negative voltage pulls the input to the driver stage negative, reverse biasing the driver PIN diode to ensure full tu ...
... a relatively high impedance at RF, and RF current flows through R2, C1, and C2. A voltage doubler comprised of C2, D4 and D5 rectifies the RF into a negative DC output. The resulting negative voltage pulls the input to the driver stage negative, reverse biasing the driver PIN diode to ensure full tu ...
HMC197A - Hittite Microwave Corporation
... The HMC197A(E) is a low-cost SPDT switch in a 6-lead SOT26 plastic package for use in general switching applications which require very low insertion loss and very small size. The device can control signals from DC to 3 GHz and is especially suited for 900 MHz, 1.8 - 2.2 GHz, and 2.4 GHz ISM applica ...
... The HMC197A(E) is a low-cost SPDT switch in a 6-lead SOT26 plastic package for use in general switching applications which require very low insertion loss and very small size. The device can control signals from DC to 3 GHz and is especially suited for 900 MHz, 1.8 - 2.2 GHz, and 2.4 GHz ISM applica ...
BD9722FV - uri=media.digikey
... System regulator for hard disk drive systems BD9722FV BD9722FV is a system regulator to convert into two systems of power supply from 5V. One is a synchronous rectification DC/DC controller. It enables to determine 1.0~3.3V output with external resistor and to provide power supply to a high current ...
... System regulator for hard disk drive systems BD9722FV BD9722FV is a system regulator to convert into two systems of power supply from 5V. One is a synchronous rectification DC/DC controller. It enables to determine 1.0~3.3V output with external resistor and to provide power supply to a high current ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.