Brushless DC Motor Fundamentals Application Note
... The PMSM motor shares some similarities with the BLDC motor, but is driven by a sinusoidal signal to achieve lower torque ripple. The sinusoidal distribution of the multi-phase stator windings generates a sinusoidal flux density in the air gap that is different from BLDC motor’s trapezoidal flux den ...
... The PMSM motor shares some similarities with the BLDC motor, but is driven by a sinusoidal signal to achieve lower torque ripple. The sinusoidal distribution of the multi-phase stator windings generates a sinusoidal flux density in the air gap that is different from BLDC motor’s trapezoidal flux den ...
AT-R-08 AIR TRAFFIC CONTROL TRAINING SERIES EQUIPMENT
... This publication is designed to be used in conjunction with hands-on training and classroom instruction to familiarize the air traffic controller with the operation of the AN/FPN-62 (N- PAR). It is designed to assist all controllers in the alignment of the N-PAR. This publication does not replace TO ...
... This publication is designed to be used in conjunction with hands-on training and classroom instruction to familiarize the air traffic controller with the operation of the AN/FPN-62 (N- PAR). It is designed to assist all controllers in the alignment of the N-PAR. This publication does not replace TO ...
Voltage Output DACs
... The 16-bit LTC®2656 combines eight voltage output DACs with guaranteed ±4LSB INL and ±1LSB DNL, and achieves ultralow AC and DC crosstalk to ensure rock-solid control in precision multichannel open or closed loop systems. The complete family of quad and octal DACs integrates a precision 1.25V or 2.0 ...
... The 16-bit LTC®2656 combines eight voltage output DACs with guaranteed ±4LSB INL and ±1LSB DNL, and achieves ultralow AC and DC crosstalk to ensure rock-solid control in precision multichannel open or closed loop systems. The complete family of quad and octal DACs integrates a precision 1.25V or 2.0 ...
FJB5555 NPN Silicon Transistor — NPN Silicon T ransistor
... cause the failure of the life support device or system, or to affect its life, and (c) whose failure to perform when properly used in safety or effectiveness. accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. ANTI ...
... cause the failure of the life support device or system, or to affect its life, and (c) whose failure to perform when properly used in safety or effectiveness. accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. ANTI ...
transducer
... transducers contain the mechanical as well as electrical device. The mechanical device converts the physical quantity to be measured into a mechanical signal. Such mechanical device are called as the primary transducers, because they deal with the physical quantity to be measured. ...
... transducers contain the mechanical as well as electrical device. The mechanical device converts the physical quantity to be measured into a mechanical signal. Such mechanical device are called as the primary transducers, because they deal with the physical quantity to be measured. ...
Specification Sheet - Elliott Electric Supply
... Sources of high energy transients include lightning induced surges, power company switching and short circuits. These high energy transients can destroy components instantly. ...
... Sources of high energy transients include lightning induced surges, power company switching and short circuits. These high energy transients can destroy components instantly. ...
Power Meter 750
... circuits are live until they have been completely de-energized, tested, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of backfeeding. • Turn off all power supplying the power meter and the equipment in which it is ins ...
... circuits are live until they have been completely de-energized, tested, and tagged. Pay particular attention to the design of the power system. Consider all sources of power, including the possibility of backfeeding. • Turn off all power supplying the power meter and the equipment in which it is ins ...
LTC2500-32 - 32-Bit Over-Sampling ADC with
... Note 8: Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. The deviation is measured from the center of the quantization band. Note 9: Bipolar zero-scale error is the offset voltage measured from –0.5LSB when t ...
... Note 8: Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. The deviation is measured from the center of the quantization band. Note 9: Bipolar zero-scale error is the offset voltage measured from –0.5LSB when t ...
Motors and Generators
... The direction (polarity) of the induced voltages depends on the direction of movement of the coil. The induced voltages are additive, making slip ring X (see the previous figure) positive (+) and slip ring Y negative (-). The potential across resistor R causes a current to flow from Y to X through ...
... The direction (polarity) of the induced voltages depends on the direction of movement of the coil. The induced voltages are additive, making slip ring X (see the previous figure) positive (+) and slip ring Y negative (-). The potential across resistor R causes a current to flow from Y to X through ...
Design, Optimization and Integration of Doherty
... The signals of the new communication standards (LTE / LTE-Advanced) show a great difference between the peak and its average power (PAPR) being unsuitable for use with conventional power amplifiers because they present maximum efficiency only when working with maximum power. These signals demands lo ...
... The signals of the new communication standards (LTE / LTE-Advanced) show a great difference between the peak and its average power (PAPR) being unsuitable for use with conventional power amplifiers because they present maximum efficiency only when working with maximum power. These signals demands lo ...
MODEL MCV-7000 series SPEEDOMETER/TACHOMETER INFORMATION GAUGE .
... Connect the red wire from the 4-wire main harness to accessory power from the ignition switch. Connect the WHITE/RED wire from the 4-wire main harness to constant battery power. The WHITE/RED wire keeps the clock time and the RED wire lights up the gauge. Never connect this to a battery charger alon ...
... Connect the red wire from the 4-wire main harness to accessory power from the ignition switch. Connect the WHITE/RED wire from the 4-wire main harness to constant battery power. The WHITE/RED wire keeps the clock time and the RED wire lights up the gauge. Never connect this to a battery charger alon ...
STM6519
... tREC (if tREC option is used) or stays low as long as overvoltage on SR is detected (if tREC option is not used). This is feedback, and the user only knows that the device is locked in test mode. Each time the SR input is connected to ground in test mode, a shortened tSRC-SHORT (tSRC/128) is used in ...
... tREC (if tREC option is used) or stays low as long as overvoltage on SR is detected (if tREC option is not used). This is feedback, and the user only knows that the device is locked in test mode. Each time the SR input is connected to ground in test mode, a shortened tSRC-SHORT (tSRC/128) is used in ...
GE 6A Digital PicoDLynx : Non-Isolated DC-DC Power Modules Data Sheet
... Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 22 μF ceramic ...
... Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max Co = 0.1μF // 22 μF ceramic ...
S8VS (15/30/60/90/120/180/240/480-W Models)
... *4. To reset the protection, turn OFF the input power for three minutes or longer and then turn it back ON. *5. Displayed on 7-segment LED. (character height: 8 mm) *6. Resolution of output voltage indication: 0.1 V, Precision of output voltage indication: ±2% (percentage of output voltage value, ±1 ...
... *4. To reset the protection, turn OFF the input power for three minutes or longer and then turn it back ON. *5. Displayed on 7-segment LED. (character height: 8 mm) *6. Resolution of output voltage indication: 0.1 V, Precision of output voltage indication: ±2% (percentage of output voltage value, ±1 ...
section 15172
... programmable to control start/stop functions, running speeds, PID parameter sets and digital output relays. CC. VFD shall provide plain language readouts of output frequency in hertz, PID feedback in percent, output voltage in volts, output current in amps, output power in kilowatts, DC bus voltage ...
... programmable to control start/stop functions, running speeds, PID parameter sets and digital output relays. CC. VFD shall provide plain language readouts of output frequency in hertz, PID feedback in percent, output voltage in volts, output current in amps, output power in kilowatts, DC bus voltage ...
EC1354 VLSI DESIGN - NPR Group of institution
... 5. What are the different operating modes of MOS transistor? 6. What is accumulation mode? 7. What is depletion mode? 8. What is inversion mode? 9. What are the three operating regions of MOS transistor? 10. What are the parameters that affect the magnitude of drain source current? 11. Write the thr ...
... 5. What are the different operating modes of MOS transistor? 6. What is accumulation mode? 7. What is depletion mode? 8. What is inversion mode? 9. What are the three operating regions of MOS transistor? 10. What are the parameters that affect the magnitude of drain source current? 11. Write the thr ...
How High-Efficiency Alternators Save Fuel
... elements of the alternator are reviewed: rotor, stator, rectifier and voltage regulator. Next, an inside look at where the actual power losses occur within the alternator is examined. This includes electrical losses, magnetic losses and mechanical losses. This is followed with a discussion on the to ...
... elements of the alternator are reviewed: rotor, stator, rectifier and voltage regulator. Next, an inside look at where the actual power losses occur within the alternator is examined. This includes electrical losses, magnetic losses and mechanical losses. This is followed with a discussion on the to ...
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.