
Model 414A Fast Coincidence Operating and Service Manual
... There are three general methods of termination that are used. The simplest of these is shunt termination at the receiving end of the cable. A second method is series termination at the sending end. The third is a combination of series and shunt termination, where the cable impedance is matched both ...
... There are three general methods of termination that are used. The simplest of these is shunt termination at the receiving end of the cable. A second method is series termination at the sending end. The third is a combination of series and shunt termination, where the cable impedance is matched both ...
Series 9180/ 9270 Power Amplifier
... The input stage of the 9180/9270 Amplifier utilizes four low-noise, High-g, JFET’s (high transconductance junction field-effect transistors), in a fully complimentary, symmetric configuration. This circuit configuration results in excellent front-end headroom and a simple, straightforward connection ...
... The input stage of the 9180/9270 Amplifier utilizes four low-noise, High-g, JFET’s (high transconductance junction field-effect transistors), in a fully complimentary, symmetric configuration. This circuit configuration results in excellent front-end headroom and a simple, straightforward connection ...
74LS221
... Throughout these ranges, pulse width is defined by the relationship: tw(out) = CextRext In2 ≈ 0.7 CextRext. In circuits where pulse cutoff is not critical, timing capacitance up to 1000 µF and timing resistance as low as 1.4 kΩ can be used. Also, the range of jitter-free output pulse widths is exten ...
... Throughout these ranges, pulse width is defined by the relationship: tw(out) = CextRext In2 ≈ 0.7 CextRext. In circuits where pulse cutoff is not critical, timing capacitance up to 1000 µF and timing resistance as low as 1.4 kΩ can be used. Also, the range of jitter-free output pulse widths is exten ...
ELE 427 Homework #1 Fall `07
... discrete values of α). Use Matlab, Excel, or some other graphing software to create the plot. 4. Suppose a potentiometer with an input voltage of 5V and total resistance Rp = 1KΩ, is used to measure angular position as a function of α. Suppose that the (unloaded) potentiometer output is measured by ...
... discrete values of α). Use Matlab, Excel, or some other graphing software to create the plot. 4. Suppose a potentiometer with an input voltage of 5V and total resistance Rp = 1KΩ, is used to measure angular position as a function of α. Suppose that the (unloaded) potentiometer output is measured by ...
bicmos-technology-ppt
... performance BiCMOS devices is the addition of bipolar process steps to a baseline CMOS process. The BiCMOS gates could be used as an effective way of speeding up the VLSI circuits. The applications of BiCMOS are vast. Advantages of bipolar and CMOS circuits can be retained in BiCMOS chips. B ...
... performance BiCMOS devices is the addition of bipolar process steps to a baseline CMOS process. The BiCMOS gates could be used as an effective way of speeding up the VLSI circuits. The applications of BiCMOS are vast. Advantages of bipolar and CMOS circuits can be retained in BiCMOS chips. B ...
Adaptive predictive error filter-based maximum power point tracking
... It is observed that PI and proportional integral and derivative (PID)controller are very popular controllers that are used in PV system because of their simplicity in design and ease in implementation [3]. An adaptive controller can handle wider range of uncertainties in the PV system and provides d ...
... It is observed that PI and proportional integral and derivative (PID)controller are very popular controllers that are used in PV system because of their simplicity in design and ease in implementation [3]. An adaptive controller can handle wider range of uncertainties in the PV system and provides d ...
CBC34813-M5C - Cymbet Corporation
... startup characteristics. Consequently the crystal oscillator frequency on CBC348X3 parts will tend to run 100-300ppm higher in frequency then the nominal value of 32.768KHz when used with a 5 to 12.5pF crystal. In order to compensate for this higher frequency, the CBC34813 devices have a set of cali ...
... startup characteristics. Consequently the crystal oscillator frequency on CBC348X3 parts will tend to run 100-300ppm higher in frequency then the nominal value of 32.768KHz when used with a 5 to 12.5pF crystal. In order to compensate for this higher frequency, the CBC34813 devices have a set of cali ...
For Bodine`s Handbook on small motors, gearmotors
... Electric motors are designed to convert electrical energy into mechanical energy to perform some physical task or work. In order to understand the types of motors that are available as well as their performance characteristics, some understanding of the basic physical principles governing motor desi ...
... Electric motors are designed to convert electrical energy into mechanical energy to perform some physical task or work. In order to understand the types of motors that are available as well as their performance characteristics, some understanding of the basic physical principles governing motor desi ...
Dual-Axis Solar Tracker - Worcester Polytechnic Institute
... Solar power is the fastest growing means of renewable energy production with grid connected solar capacity increasing on average by 60 % annually from 2004 to 2009 according to the National Center for Policy Analysis [A]. Yet solar energy contributes to only … The current situation of the more matur ...
... Solar power is the fastest growing means of renewable energy production with grid connected solar capacity increasing on average by 60 % annually from 2004 to 2009 according to the National Center for Policy Analysis [A]. Yet solar energy contributes to only … The current situation of the more matur ...
PAM3131BECR - Diodes Incorporated
... 4.7µF minimum value capacitor from VO to GND is also required. To improve transient response, noise rejection, and ripple rejection, an additional 1 0μF or larger, low ESR capacitor is recommended at the output. A higher-value, low ESR output capacitor may be necessary if large, fast-rise-time load ...
... 4.7µF minimum value capacitor from VO to GND is also required. To improve transient response, noise rejection, and ripple rejection, an additional 1 0μF or larger, low ESR capacitor is recommended at the output. A higher-value, low ESR output capacitor may be necessary if large, fast-rise-time load ...
IET LABS, INC. 1864-1644 Positive Polarity Megohmmeter
... WARNING High voltage is applied to the measurement terminals of 1864-1644 Megohmmeters at all times, except when the function switch is set to DISCHARGE. While the current is limited to a value that is not dangerous under most conditions, the energy stored in a capacitor connected to the terminals m ...
... WARNING High voltage is applied to the measurement terminals of 1864-1644 Megohmmeters at all times, except when the function switch is set to DISCHARGE. While the current is limited to a value that is not dangerous under most conditions, the energy stored in a capacitor connected to the terminals m ...
AP Quiz #z19 Rotation Intro AP FR Quiz #19 Rotation Introduction
... acceleration. The weight of the rod to the left of the balancing point creates a counterclockwise torque about that point, and the weight of the rod to the right creates a clockwise torque. The magnitudes of these torques must be equal for the net torque to be zero. The weight of the left side of th ...
... acceleration. The weight of the rod to the left of the balancing point creates a counterclockwise torque about that point, and the weight of the rod to the right creates a clockwise torque. The magnitudes of these torques must be equal for the net torque to be zero. The weight of the left side of th ...
GS 05D01D02-01E - Atlantic Thermal
... Setpoint rate-of-change setting = off, or 0.0 to 100.0%/h or min. of measured input range width. A PV tracking function operates automatically when the setpoint is changed, the power is turned on, or the mode is changed from manual to automatic. Direct/reverse action: The output increase/decrease di ...
... Setpoint rate-of-change setting = off, or 0.0 to 100.0%/h or min. of measured input range width. A PV tracking function operates automatically when the setpoint is changed, the power is turned on, or the mode is changed from manual to automatic. Direct/reverse action: The output increase/decrease di ...
TPS70302 数据资料 dataSheet 下载
... For each regulator, there is an internal discharge transistor to discharge the output capacitor when the regulator is turned off (disabled). The PG1 pin reports the voltage condition at VOUT1. The PG1 pin can be used to implement an SVS (POR, or power-on reset) for the circuitry supplied by regulato ...
... For each regulator, there is an internal discharge transistor to discharge the output capacitor when the regulator is turned off (disabled). The PG1 pin reports the voltage condition at VOUT1. The PG1 pin can be used to implement an SVS (POR, or power-on reset) for the circuitry supplied by regulato ...
AND8054/D Designing RC Oscillator Circuits with Low
... There are a number of advantages that result from lowering the power supply voltage such as lower power consumption and the reduction of multiple power supplies. Low voltage analog design also results in new challenges for the designer and care must be taken to transfer existing higher voltage circu ...
... There are a number of advantages that result from lowering the power supply voltage such as lower power consumption and the reduction of multiple power supplies. Low voltage analog design also results in new challenges for the designer and care must be taken to transfer existing higher voltage circu ...
Maxim Design Support Technical Documents Application Notes
... small as possible. Some applications may even use Schottky diodes because they have a much lower forward voltage. Finally, choosing a diode with a short reverse-recovery time will limit the output charge lost back to the input when the diode switches from the conducting to the nonconducting stage. ...
... small as possible. Some applications may even use Schottky diodes because they have a much lower forward voltage. Finally, choosing a diode with a short reverse-recovery time will limit the output charge lost back to the input when the diode switches from the conducting to the nonconducting stage. ...
CoolRunner-II Demo Board Summary
... The primary display on the demo board is a custom display fabricated specifically for operation at 1.8V drive levels. Each operable visual item in the display is a separate LCD segment which is driven directly by the CPLD. To properly drive an LCD such as this one, the CPLD provides a reference sign ...
... The primary display on the demo board is a custom display fabricated specifically for operation at 1.8V drive levels. Each operable visual item in the display is a separate LCD segment which is driven directly by the CPLD. To properly drive an LCD such as this one, the CPLD provides a reference sign ...
ADS8402 数据资料 dataSheet 下载
... 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. ...
... 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. ...
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 ...
Variable-frequency drive

A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.