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Downloadable Full Text - DSpace@MIT
Downloadable Full Text - DSpace@MIT

... of this principle has also been demonstrated for powering robot swarms [4]. In this case, resonance was used on the primary but not on the secondary windings on the robots. This was done to minimize performance variations resulting from interactions among the robots. Recent work [5] has shown that w ...
Video Designs Using High-Speed Amplifiers
Video Designs Using High-Speed Amplifiers

RF5745 2.4GHz TO 2.5GHz, 802.11b/g/n SINGLE-BAND FRONT END MODULE Features
RF5745 2.4GHz TO 2.5GHz, 802.11b/g/n SINGLE-BAND FRONT END MODULE Features

... For best performance, the evaluation board layout should be copied as close as possible in particular the ground vias and bypassing components. Other configurations may work, but the design process is much easier and quicker if this recommendation is followed. Gerber files of the evaluation board ca ...
AUTOMATED PRODUCTION LINE WITH BOTTLE FILLING
AUTOMATED PRODUCTION LINE WITH BOTTLE FILLING

AD7485 数据手册DataSheet下载
AD7485 数据手册DataSheet下载

... the digitization process; the more levels, the smaller the quantization noise. The theoretical signal to (noise + distortion) ratio for an ideal N-bit converter with a sine wave input is given by: ...
UCC2808A-1 数据资料 dataSheet 下载
UCC2808A-1 数据资料 dataSheet 下载

... the UCC3808A, a low impedance circuit board ground plane is highly recommended. OUTA and OUTB: Alternating high current output stages. Both stages are capable of driving the gate of a power MOSFET. Each stage is capable of 500-mA peak-source current, and 1-A peak-sink current. The output stages swit ...
Agilent Network Analyzer Basics - Steven M. Anlage Research Page
Agilent Network Analyzer Basics - Steven M. Anlage Research Page

... This model requires a variety of stimulus and response tools. It takes a large range of test equipment to accomplish all of the measurements shown on this chart. Some instruments are optimized for one test only (like bit-error rate), while others, like network analyzers, are much more generalpurpose ...
Aalborg Universitet Coordinated Primary and Secondary Control with Frequency-Bus-Signaling for
Aalborg Universitet Coordinated Primary and Secondary Control with Frequency-Bus-Signaling for

... and loads in DC systems. By changing the bus voltage according to different thresholds, the coordination signal is communicated to other units. However, this control law needs the modes changes among units, which makes the parameters of units hard to be designed and even may cause the unstable opera ...
O - Near East University Docs
O - Near East University Docs

... of inverters (1) to cope with the variation of DC input voltage, {2} for voltage regulation of inverters, and {3} for the constant volts/frequency control requirement. There are various techniques to vary the inverter gain. The most efficient method of controlling the gain (and output voltage) is to ...
T200 Manual 0-1-5
T200 Manual 0-1-5

... T200 Vector Impedance Analyzer is a device for measuring the complex impedance at RF frequencies. This is accomplished by injecting an RF signal into the target under test connected to the test port, and measuring the amplitude and phase of the reflected RF signal. The reflected amplitude and phase ...
Making the Most of a Low-Power, High-Speed
Making the Most of a Low-Power, High-Speed

... achieve a 1.3MHz, –3dB bandwidth. This performance pales in comparison with the 35MHz bandwidth of the OPA683, or for slightly more quiescent power dissipation, the 71MHz bandwidth of the OPA684. Note that all of these devices are capable of operating on a +3V supply; at this low supply voltage, tho ...
Improved Spice Models of Aluminum Electrolytic - Digi
Improved Spice Models of Aluminum Electrolytic - Digi

- aes journals
- aes journals

... methods: Zero-voltage switching and Zero-current switching. Zero-voltage switching refers to eliminating the turn-on switching loss by having the voltage of the switching circuit set to zero right before the circuit is turned on. Zero-current switching is to avoid the turn-off switching loss by allo ...
Chapter 1
Chapter 1

... inductive and capacitive transducer falls in this category. 3. Analog and Digital Transducers: Transducers, on the basis of nature of output signal, may be classified into analog and digital transducers. Analog transducer converts input signal into output signal, which is a continuous function of ti ...
402H Microphone Calibrator User Manual
402H Microphone Calibrator User Manual

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... The growing market of wireless communications is a significant reason that motivates the study of new low-cost and highly integrated architectures. Radio frequency (RF) filters are essential components of any RF wireless transceiver and are used to attenuate undesired out of band signals. RF filters ...
Electro-Optic Modulators
Electro-Optic Modulators

AN18 - Power Gain Stages for Monolithic Amplifiers
AN18 - Power Gain Stages for Monolithic Amplifiers

... loop associated with each side of the booster limits stage gain to about 5. This is necessary for stability. The gain bandwidth available through the Q3-Q5 and Q4-Q6 connections is quite high, and not readily controllable. The local feedback reduces the gain bandwidth, prompting stage stability. The ...
Low Noise Figure, Wide Bandwidth Analog Optical Link
Low Noise Figure, Wide Bandwidth Analog Optical Link

Pickups, Volume, and Tone Controls
Pickups, Volume, and Tone Controls

ADG749 数据手册DataSheet下载
ADG749 数据手册DataSheet下载

... supply, which makes it ideal for battery-powered instruments, where power efficiency and performance are important design parameters. ...
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Instructions for Use

Simple Analog Signal Chaotic Masking and Recovery
Simple Analog Signal Chaotic Masking and Recovery

... studied for a particular application. Most professionals agree that chaotic systems are very sensitive to their initial conditions and all chaotic systems are nonlinear, but not all non-linear systems are chaotic [1]. A safe and succinct definition is that chaos is a piece of jargon used to describe ...
Product Specification: ATV 12 Variable Frequency Drive for Pump
Product Specification: ATV 12 Variable Frequency Drive for Pump

... B. operation of precharge circuit, loss of communication, DC-to-DC power supply, and control C. The AC Drive power converter shall be protected against short circuits between output phases and also D. phase-to-ground. E. Upon loss of the analog process follower reference signal, the AC Drive power c ...
Detection and estimation of demagnetization faults in Permanent Magnet Synchronous Motors
Detection and estimation of demagnetization faults in Permanent Magnet Synchronous Motors

... and computationally inexpensive system identification technique that is built upon formal-language-theoretic formulation, based on symbolic information. A central step in the proposed system identification method is discretization of the voltage and current time-series data for conversion into a corre ...
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Heterodyne



Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.
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