BDTIC www.BDTIC.com/infineon ® Version 2.0, 11 Jan 2012
... The other features include narrowing the feedback voltage swing to 0.3V (from 0.5V) during burst mode so that the output voltage ripple can be reduced by 40%, reduction of the fast voltage fall time of the MOSFET by increasing the soft turn-on time and addition of 50W turn-on resistor, faster start ...
... The other features include narrowing the feedback voltage swing to 0.3V (from 0.5V) during burst mode so that the output voltage ripple can be reduced by 40%, reduction of the fast voltage fall time of the MOSFET by increasing the soft turn-on time and addition of 50W turn-on resistor, faster start ...
Sensors and Actuators
... signal must be conditioned or converted to digital so the computer can understand it. (This will be covered later.) While a vehicle may have many different sensors, there are three main categories: voltage-generating, resistive and switches. A voltage-generating sensor generates its own voltage sign ...
... signal must be conditioned or converted to digital so the computer can understand it. (This will be covered later.) While a vehicle may have many different sensors, there are three main categories: voltage-generating, resistive and switches. A voltage-generating sensor generates its own voltage sign ...
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 ...
flexibile ac transmission system (facts)
... performs .real work, such as keeping a lamp lit or a motor running, reactive power does not perform any such work. if reactive power is not enough then Voltage slag would occur. In case of excess reactive power then there would be too high voltage in the line. The magnitude of the reactive power dep ...
... performs .real work, such as keeping a lamp lit or a motor running, reactive power does not perform any such work. if reactive power is not enough then Voltage slag would occur. In case of excess reactive power then there would be too high voltage in the line. The magnitude of the reactive power dep ...
Input-referred noise improves A/D converter resolution
... All analogue-to-digital converters (ADCs) have a certain amount of input-referred noise. In most cases, less input noise is better. There are some cases, however, where input noise can actually be helpful in achieving higher resolution. In precision, low-frequency measurement applications, the effec ...
... All analogue-to-digital converters (ADCs) have a certain amount of input-referred noise. In most cases, less input noise is better. There are some cases, however, where input noise can actually be helpful in achieving higher resolution. In precision, low-frequency measurement applications, the effec ...
Data Centers - engineering site
... i Over 1 billion pages consulted each month. i Nearly 2 million POP accounts, and as many e-mails sent each day. i A level of operating security of nearly 100%. To avoid slowing down data and to guarantee access during data transfer, these centres are connected by several independent network firms ( ...
... i Over 1 billion pages consulted each month. i Nearly 2 million POP accounts, and as many e-mails sent each day. i A level of operating security of nearly 100%. To avoid slowing down data and to guarantee access during data transfer, these centres are connected by several independent network firms ( ...
Variable- Voltage Techniques
... Voltage scheduling for real-time applications is complex for several reasons: A real-time application consists of two or more tasks. In certain applications, precedence relations exist among tasks A variable-voltage processor uses only a few discrete voltages (or frequencies) because preparing a lot ...
... Voltage scheduling for real-time applications is complex for several reasons: A real-time application consists of two or more tasks. In certain applications, precedence relations exist among tasks A variable-voltage processor uses only a few discrete voltages (or frequencies) because preparing a lot ...
TB62206FG
... TB62206FG How to Calculate Set Current This IC drives the motor, controlling the PWM constant current in reference to the frequency of CR oscillator. At that time, the maximum current value (set current value) can be determined by setting the sensing resistor (RRS) and reference voltage (Vref). ...
... TB62206FG How to Calculate Set Current This IC drives the motor, controlling the PWM constant current in reference to the frequency of CR oscillator. At that time, the maximum current value (set current value) can be determined by setting the sensing resistor (RRS) and reference voltage (Vref). ...
Charging System Tests and Voltage Information
... Always check the battery first. A bad battery can affect the charging test. Battery Voltage should be 12.6 volts when car is off. If not we need to find out Why? If over it is probably because the car has been running and was just shut off. If under it is bad or not being charged. Battery state of C ...
... Always check the battery first. A bad battery can affect the charging test. Battery Voltage should be 12.6 volts when car is off. If not we need to find out Why? If over it is probably because the car has been running and was just shut off. If under it is bad or not being charged. Battery state of C ...
Seminar Report
... connected between the rotor side and the grid side can make the rotor flux rotate from a sub-synchronous speed to a super-synchronous speed. The DFIG can produce and inject constant-frequency power to the grid by controlling the rotor flux. The power converter only needs to handle a fraction (typica ...
... connected between the rotor side and the grid side can make the rotor flux rotate from a sub-synchronous speed to a super-synchronous speed. The DFIG can produce and inject constant-frequency power to the grid by controlling the rotor flux. The power converter only needs to handle a fraction (typica ...
AD9850 Data Sheet
... The frequency tuning, control, and phase modulation words are loaded into the AD9850 via a parallel byte or serial loading format. The parallel load format consists of five iterative loads of an 8-bit control word (byte). The first byte controls phase modulation, power-down enable, and loading forma ...
... The frequency tuning, control, and phase modulation words are loaded into the AD9850 via a parallel byte or serial loading format. The parallel load format consists of five iterative loads of an 8-bit control word (byte). The first byte controls phase modulation, power-down enable, and loading forma ...
Circulating Current Injection Methods Based on
... references are derived from a comprehensive analysis of the MMC based on evaluating the oscillating energy/power in the arms. Three references are obtained for the circulating current, the first one injects only a dc component, which is based on [21], [22]. The second one was already presented in [2 ...
... references are derived from a comprehensive analysis of the MMC based on evaluating the oscillating energy/power in the arms. Three references are obtained for the circulating current, the first one injects only a dc component, which is based on [21], [22]. The second one was already presented in [2 ...
Aalborg Universitet Modular Plug’n’Play Control Architectures for Three-phase Inverters in UPS Applications
... the load directly [4]. Modular online UPS systems (Fig. 1), as a kind of flexible, reliable architecture, are becoming more and more attractive in in both academic and industrial field [7]. Several inverter modules are operating at the same time to work as inverter stage of the online UPS system. Nu ...
... the load directly [4]. Modular online UPS systems (Fig. 1), as a kind of flexible, reliable architecture, are becoming more and more attractive in in both academic and industrial field [7]. Several inverter modules are operating at the same time to work as inverter stage of the online UPS system. Nu ...
GTLP Signal Level Background Information
... needing to be driven rail to rail. Driver output swings of 0.8 V to 1 V are common, and VIL/VIH as low as 100 mV can be detected at the input. Initially, GTL drivers were designed to pull a 1.2-V signal down to 0.4 V when it switched on. The 0.4-V VOL is common for an N-channel MOSFET pull-down devi ...
... needing to be driven rail to rail. Driver output swings of 0.8 V to 1 V are common, and VIL/VIH as low as 100 mV can be detected at the input. Initially, GTL drivers were designed to pull a 1.2-V signal down to 0.4 V when it switched on. The 0.4-V VOL is common for an N-channel MOSFET pull-down devi ...
Nyquist Rate Analog-to-Digital Converters
... Vref. Vx goes to –Vin + Vref/2. If Vx is negative, then Vin is greater than Vref/2 and the MSB capacitor is left connected to Vref. Otherwise the MSB capacitor is disconnected and the same procedure is repeated N times until the LSB capacitor has been ...
... Vref. Vx goes to –Vin + Vref/2. If Vx is negative, then Vin is greater than Vref/2 and the MSB capacitor is left connected to Vref. Otherwise the MSB capacitor is disconnected and the same procedure is repeated N times until the LSB capacitor has been ...
Characteristics of Instrumentation
... Random error generating noise can also be introduced at each stage in the measurement process, as shown schematically in Figure 1.8. Random interfering inputs will result in noise from the measurement environment N1 that are introduced before the sensor, as shown in the figure. An example would be b ...
... Random error generating noise can also be introduced at each stage in the measurement process, as shown schematically in Figure 1.8. Random interfering inputs will result in noise from the measurement environment N1 that are introduced before the sensor, as shown in the figure. An example would be b ...
Motor Drive and Control Solutions (Rev. I)
... Host – Motion profile, logic controller or user interface, often communicating over a standard or proprietary field bus (CAN, serial, and Ethernet such as EtherCAT, Ethernet POWERLINK or EtherNet/IP) Digital isolation – Protection and level ...
... Host – Motion profile, logic controller or user interface, often communicating over a standard or proprietary field bus (CAN, serial, and Ethernet such as EtherCAT, Ethernet POWERLINK or EtherNet/IP) Digital isolation – Protection and level ...
Filling the Terahertz Gap with Sand: High
... propagation of even-mode wave4 , the harmonic signal is fully blocked (Fig. 5(b)), and effective isolation at 2f0 is achieved (>35 dB in simulation). Interestingly, the the slot pair at the top, which is used as wave chokes at f0 , now behaves as a typical folded-slot antenna in which four quarter-w ...
... propagation of even-mode wave4 , the harmonic signal is fully blocked (Fig. 5(b)), and effective isolation at 2f0 is achieved (>35 dB in simulation). Interestingly, the the slot pair at the top, which is used as wave chokes at f0 , now behaves as a typical folded-slot antenna in which four quarter-w ...
Analog Dialogue Volume 48 Number 2
... interface (analog/digital), frequency response (bandwidth), measurement range, noise, and linearity. While many triaxial MEMS accelerometers support direct connection with most embedded processors, capturing the best available level of performance might require single- or dual-axis solutions that ha ...
... interface (analog/digital), frequency response (bandwidth), measurement range, noise, and linearity. While many triaxial MEMS accelerometers support direct connection with most embedded processors, capturing the best available level of performance might require single- or dual-axis solutions that ha ...
full text pdf
... switching losses (high voltage on element, diode reverse current flowing during the transistor commutation process). It is confirmed by the test results of an actual system with the following parameters: Uin = 35 V, Lp = 1400 μH, rLp = 60 mΩ, IPW60R041 MOSFET transistor (Rdson = 41 mΩ), FFH30S60S di ...
... switching losses (high voltage on element, diode reverse current flowing during the transistor commutation process). It is confirmed by the test results of an actual system with the following parameters: Uin = 35 V, Lp = 1400 μH, rLp = 60 mΩ, IPW60R041 MOSFET transistor (Rdson = 41 mΩ), FFH30S60S di ...
NCP623 Ultra Low Noise 150 mA Low Dropout Voltage Regulator with
... The NCP623 low dropout linear regulator can deliver up to 150 mA of output current with a typical dropout voltage of 180 mV. This low dropout feature helps to maintain a regulated output voltage for a longer period of time as the lifetime of the battery decreases. It is the ideal choice for noise se ...
... The NCP623 low dropout linear regulator can deliver up to 150 mA of output current with a typical dropout voltage of 180 mV. This low dropout feature helps to maintain a regulated output voltage for a longer period of time as the lifetime of the battery decreases. It is the ideal choice for noise se ...
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.