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EE1427 ENGINEERING SCIENCE LABORATORY TASKS
EE1427 ENGINEERING SCIENCE LABORATORY TASKS

UCC2960 数据资料 dataSheet 下载
UCC2960 数据资料 dataSheet 下载

... The UCC3960 primary-side startup controller is a unique solution that provides all the primary-side functions required for a single-ended, isolated offline, switch-mode power converter that uses secondary-side PWM control. It is usable with a wide range of secondary circuits and is especially well s ...
Sinusoids
Sinusoids

small signal bjt amplifier
small signal bjt amplifier

... ☺One of the primary uses of a transistor is to amplify ac signals. ☺This could be an audio signal or perhaps some high frequency radio signal. ☺It has to be able to do this without distorting the original input. ☺Most transistors amplifiers are designed to operate in the linear region ☺The common-em ...
1470 Brochure - Solartron Analytical
1470 Brochure - Solartron Analytical

... samples per second, which allows the unit to make very accurate measurements of the equivalent series resistance (ESR) of batteries, fuel cells and supercapacitors using DC ohmicdrop techniques. If required, the 10,000 samples per second data acquisition rate can be used in extremely short bursts of ...
Direct and External Modulation of Light
Direct and External Modulation of Light

... using the Internet, is generated and processed in the electrical domain. However, now that we are reaching the end of this experimental course, you should have hopefully been made aware of the benefit (and the beauty) of using light to transport this data. For the time being, the realm of optical co ...
5324 Hwrk Probs 31-35 - The College of Engineering at the
5324 Hwrk Probs 31-35 - The College of Engineering at the

LF2418891896
LF2418891896

Slide 1
Slide 1

General Description Features
General Description Features

... Where fUPDATE is the DDS update frequency, PINC is the DDS phase increment. The DDS is implemented with a 24-bit phase accumulator. The gain and offset of the DDS output waveform can be adjusted by the Gain and Offset track bars in the DDS section of the GUI. The shape of the waveform is selected by ...
Fuzzy Logic.pdf - 123seminarsonly.com
Fuzzy Logic.pdf - 123seminarsonly.com

... The PLL, being a relatively inexpensive integrated circuit, has become one of the most frequently used communication circuit. PLL is also used in space-vehicle-to-earth data links where there is a premium on transmitter Weight or where the loss along the transmission path is very large. ...
File - ECpE Senior Design
File - ECpE Senior Design

... Atmospheric Systems Corporation (ASC) produces the Sonic Detection and Ranging (SODAR) system used to determine wind speed and wind direction of the atmosphere up to 200 meters. The instrument is used in the wind industry to measure wind shear conditions at potential wind project sites. The SODAR pr ...
results of the optinos project – deficits and unsureness in test
results of the optinos project – deficits and unsureness in test

... IWES has designed a new test setup which can simulate differential mode disturbance currents in the frequency range between 9kHz and 1MHz (Figure 8). This setup consists of a RF broadband power amplifier, a RF signal source and a special coupling unit with a high power RF matching transformer. This ...
RV 1 0.01-05-12 RV 1 0.04
RV 1 0.01-05-12 RV 1 0.04

... and makes this device particularly suitable for domestic use. The device can detect methane with a trip sensitivity of 10% of the LEL as well carbon monoxide. CO can be detected when a maximum concentration is exceeded or when lower concentrations persist in the environment and could build up in the ...
Module 8 Inverters
Module 8 Inverters

... • Complex circuits used to switch DC into AC. • More appropriate for operating a wide variety of appliances • Still noise will be picked up by sensitive equipment ...
3B40 数据手册DataSheet 下载
3B40 数据手册DataSheet 下载

... readily hot-swapped under full power and interchanged without disrupting field wiring. The Analog Devices 3B Series Signal Conditioning Subsystem is designed to easily handle signal conditioning problems in measurement and control applications. Some typical uses are in microcomputer-based data acqui ...
Analog+digital phase and frequency detector for phase locking of
Analog+digital phase and frequency detector for phase locking of

... The capture range of the APD, however, is on the order of the loop bandwidth f l which is typically 3 – 5 MHz, limited by the loop delay time and the phase lag in the diode laser frequency modulation response. If the beat note differs from the locking point by more than f l the APD error signal is a ...
PLL1707-Q1 数据资料 dataSheet 下载
PLL1707-Q1 数据资料 dataSheet 下载

... The PLL1707 is a low-cost phase-locked loop (PLL) multiclock generator. The PLL1707 can generate four system clocks from a 27-MHz reference input frequency. The clock outputs of the PLL1707 can be controlled by sampling frequency-control pins. The device gives customers both cost and space savings b ...
Chapter -13
Chapter -13

CVE 02_2013.indd
CVE 02_2013.indd

Equipment
Equipment

... Acoustic emission sensed transducers which convert mechanical movement into an electrical voltage signal. The transducer element in an AE sensor is almost always a piezoelectric crystal, which is commonly made from a ceramic such as lead zirconate titanate (PZT). Transducers are selected based on op ...
az of oscilloscope measurement terms
az of oscilloscope measurement terms

TSOP582.., TSOP584.. IR Receiver Modules for Remote Control
TSOP582.., TSOP584.. IR Receiver Modules for Remote Control

... infrared remote control systems. A PIN diode and a preamplifier are assembled on a leadframe, the epoxy package contains an IR filter. The demodulated output signal can be directly connected to a microprocessor for decoding. The TSOP582.. and TSOP584.. are optimized to suppress almost all spurious p ...
The superhet or superheterodyne radio receiver
The superhet or superheterodyne radio receiver

... It is clearly important to specify the level of rejection of the image signal. The specification compares the levels of signals of equal strength on the wanted and image frequencies, quoting the level of rejection of the unwanted signal. The image rejection of a receiver will be specified as the rat ...
Aalborg Universitet Single-Phase Shunt Active Power Filters Under Adverse Grid Conditions
Aalborg Universitet Single-Phase Shunt Active Power Filters Under Adverse Grid Conditions

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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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