70 W HID lamp ballast based on the L6569, L6385E and L6562A
... Schematic diagram of demonstration board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Lamp current at warm-up state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Load with 30 W during warm-up . . . . . . . . . . . . . . . ...
... Schematic diagram of demonstration board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Lamp current at warm-up state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Load with 30 W during warm-up . . . . . . . . . . . . . . . ...
34152.pdf
... Power system stabilizer (PSS) units have long been regarded as an effective way to enhance the damping of electromechanical oscillations in power system [1]. The action of PSS is to extend the angular stability limits of a power system by providing supplemental damping to the oscillation of synchron ...
... Power system stabilizer (PSS) units have long been regarded as an effective way to enhance the damping of electromechanical oscillations in power system [1]. The action of PSS is to extend the angular stability limits of a power system by providing supplemental damping to the oscillation of synchron ...
Introduction to the Oscilloscope
... • If the display is difficult or out of focus, the Intensity and Focus dials can be used to adjust it. • The INTEN dial controls the brightness of the line. • The FOCUS dial controls the sharpness of the line. • Take a moment to adjust each one and notice the ...
... • If the display is difficult or out of focus, the Intensity and Focus dials can be used to adjust it. • The INTEN dial controls the brightness of the line. • The FOCUS dial controls the sharpness of the line. • Take a moment to adjust each one and notice the ...
MAX16946 Evaluation Kit Evaluates: General Description Features
... Disconnects the resistor-divider of R6 and R7 when JU1 is not in the 1-2 position. Sets the output voltage to 8V. JU1 must be installed in the 1-3 position for proper output. Disconnects the resistor-divider of R8 and R9 when JU1 is not in the 1-3 position. Powers U3 by connecting the voltage supply ...
... Disconnects the resistor-divider of R6 and R7 when JU1 is not in the 1-2 position. Sets the output voltage to 8V. JU1 must be installed in the 1-3 position for proper output. Disconnects the resistor-divider of R8 and R9 when JU1 is not in the 1-3 position. Powers U3 by connecting the voltage supply ...
General class license
... When choosing a transmitting frequency, what should you do to comply with good amateur practice? A. Insure that the frequency and mode selected are within your license class privileges B. Follow generally accepted band plans agreed to by the Amateur Radio community. C. Monitor the frequency before t ...
... When choosing a transmitting frequency, what should you do to comply with good amateur practice? A. Insure that the frequency and mode selected are within your license class privileges B. Follow generally accepted band plans agreed to by the Amateur Radio community. C. Monitor the frequency before t ...
PowerFlex 755T Drive Solutions Low Harmonic Regenerative
... These powerful new additions offer precise motor control along with solutions for regeneration, low harmonics and flexible drive system configurations. The PowerFlex 755T products use TotalFORCE technology, our patented field oriented control for accurate torque control. With TotalFORCE, the PowerFl ...
... These powerful new additions offer precise motor control along with solutions for regeneration, low harmonics and flexible drive system configurations. The PowerFlex 755T products use TotalFORCE technology, our patented field oriented control for accurate torque control. With TotalFORCE, the PowerFl ...
ZXLD1322
... The ZXLD1322 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in series up to a total of 700mA output current. Applications cover input voltages ranging from 2.5V to 15V. Depending upon supply voltage and external components, this can provide up ...
... The ZXLD1322 is an inductive DC-DC converter, with an internal switch, designed for driving single or multiple LEDs in series up to a total of 700mA output current. Applications cover input voltages ranging from 2.5V to 15V. Depending upon supply voltage and external components, this can provide up ...
Technical Article
... amplitude-modulated carrier at the driving frequency, with a shallow modulation envelope at the respiration frequency. Figure 5 shows what this might look like in the time domain. The carrier modulation is small, placing tight constraints on the contributing noise sources and necessitating creation ...
... amplitude-modulated carrier at the driving frequency, with a shallow modulation envelope at the respiration frequency. Figure 5 shows what this might look like in the time domain. The carrier modulation is small, placing tight constraints on the contributing noise sources and necessitating creation ...
02-12-14_61
... Where VO = Output voltage and VIN = Input dc voltage. If the range of input voltage is between 200 and 500V and the output voltage is 340 sin(ɷt). Then, ...
... Where VO = Output voltage and VIN = Input dc voltage. If the range of input voltage is between 200 and 500V and the output voltage is 340 sin(ɷt). Then, ...
ADS8481 - Texas Instruments
... Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products con ...
... Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products con ...
PDF
... In this paper, we present a Multiprecision (MP) reconfigurable multiplier that incorporates variable precision, parallel processing (PP), razor-based dynamic voltage scaling (DVS), and dedicated MP operands scheduling to provide optimum performance for a variety of operating conditions. All of the b ...
... In this paper, we present a Multiprecision (MP) reconfigurable multiplier that incorporates variable precision, parallel processing (PP), razor-based dynamic voltage scaling (DVS), and dedicated MP operands scheduling to provide optimum performance for a variety of operating conditions. All of the b ...
AM512B - RLS encoders
... There are three signals for incremental output: A, B and Ri. Signals A and B are quadrature signals, shifted by 90°, and signal Ri is a reference mark. One revolution generates 128 pulses. The number of counts per revolution post quadrature evaluation is 512 (128 × 4 = 512). The reference mark signa ...
... There are three signals for incremental output: A, B and Ri. Signals A and B are quadrature signals, shifted by 90°, and signal Ri is a reference mark. One revolution generates 128 pulses. The number of counts per revolution post quadrature evaluation is 512 (128 × 4 = 512). The reference mark signa ...
Longitudinal Output Voltage Limitations
... voltages on interfaces to wireline carrier networks when careful attention is not paid to circuit design. Longitudinal voltages can be quite problematic because they crosstalk much more easily into other pairs in the same cable than metallic voltages.7 The U.S. Federal Communications Commission and ...
... voltages on interfaces to wireline carrier networks when careful attention is not paid to circuit design. Longitudinal voltages can be quite problematic because they crosstalk much more easily into other pairs in the same cable than metallic voltages.7 The U.S. Federal Communications Commission and ...
TPS43000 数据资料 dataSheet 下载
... synchronous PWM controller that can be used in buck, boost, SEPIC, or flyback topologies. This highly flexible, full-featured controller is designed to drive a pair of external MOSFETs (one N-channel and one P-channel), enabling it for use with a wide range of output voltages and power levels. With ...
... synchronous PWM controller that can be used in buck, boost, SEPIC, or flyback topologies. This highly flexible, full-featured controller is designed to drive a pair of external MOSFETs (one N-channel and one P-channel), enabling it for use with a wide range of output voltages and power levels. With ...
DOI: 10
... Ethreshold seems barely dependent on the temperature at which the pulses are applied (77K150K). Conversely the current density can vary over several order of magnitude in the same temperature range. For example, on GaNb4Se8 crystals we found Ethreshold = 4.3 kV/cm at 75 K and 4.2 kV/cm at 150 K, whi ...
... Ethreshold seems barely dependent on the temperature at which the pulses are applied (77K150K). Conversely the current density can vary over several order of magnitude in the same temperature range. For example, on GaNb4Se8 crystals we found Ethreshold = 4.3 kV/cm at 75 K and 4.2 kV/cm at 150 K, whi ...
Project report
... gating transistors that connects them to the power supply and the ground. The gating transistors are turned on during the active mode and are turned off during the sleep mode, which cuts off the critical path from supply voltage or ground thereby reducing the leakage current tremendously. The gating ...
... gating transistors that connects them to the power supply and the ground. The gating transistors are turned on during the active mode and are turned off during the sleep mode, which cuts off the critical path from supply voltage or ground thereby reducing the leakage current tremendously. The gating ...
Analog circuits using FinFETs
... To investigate the benefits of the improved intrinsic gain on circuit level a standard two stage Miller compensated OTA is simulated. The following specifications are used: DC voltage gain AV 0 ≥50 dB, gain bandwidth product GBW ≥10 MHz for a 5pF capacitive load and a phase margin of 60◦ . To compar ...
... To investigate the benefits of the improved intrinsic gain on circuit level a standard two stage Miller compensated OTA is simulated. The following specifications are used: DC voltage gain AV 0 ≥50 dB, gain bandwidth product GBW ≥10 MHz for a 5pF capacitive load and a phase margin of 60◦ . To compar ...
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.