Review_of_ac_Signals
... could have added a constant voltage to these waveforms; this can be done easily using the “dc offset” feature of the function generator. In that case the waveforms would have been shifted upward or downward by an amount equal to the DC offset. We would then modify Equation (1) by adding a constant t ...
... could have added a constant voltage to these waveforms; this can be done easily using the “dc offset” feature of the function generator. In that case the waveforms would have been shifted upward or downward by an amount equal to the DC offset. We would then modify Equation (1) by adding a constant t ...
IC Technology and Device Models
... range of frequency coverage (50kHz to 50MHz is typical), with provision for precise control of amplitude (using resistive divider network called an attenuator). Sweep Generator: It is a signal generator that can sweep its output frequency repeatedly over some range. These are handy for testing circu ...
... range of frequency coverage (50kHz to 50MHz is typical), with provision for precise control of amplitude (using resistive divider network called an attenuator). Sweep Generator: It is a signal generator that can sweep its output frequency repeatedly over some range. These are handy for testing circu ...
04a_Your_First_Radio
... A. It does not transmit or receive as effectively as a full-sized antenna B. It transmits a circularly polarized signal C. If the rubber end cap is lost it will unravel ...
... A. It does not transmit or receive as effectively as a full-sized antenna B. It transmits a circularly polarized signal C. If the rubber end cap is lost it will unravel ...
Early Warning Systems: A Tool for Mitigation and Coordination
... • Then circuits which measure analogue signals usually have a slow response and/or low accuracy. • Also analogue signals can be easily converted into digital type signals for use in micro-controller systems by the use of analogue-to-digital converters, or ADC’s. ...
... • Then circuits which measure analogue signals usually have a slow response and/or low accuracy. • Also analogue signals can be easily converted into digital type signals for use in micro-controller systems by the use of analogue-to-digital converters, or ADC’s. ...
Frequency Dither Circuit for Electronic Ballast EMI Reduction Abstract
... The functions performed by present day electronic ballasts include electromagnetic interference (EMI) filtering to block ballast generated noise, rectification, and a half-bridge resonant output stage for high-frequency AC control of the lamp (Figure 1). This is presently one of the most popular app ...
... The functions performed by present day electronic ballasts include electromagnetic interference (EMI) filtering to block ballast generated noise, rectification, and a half-bridge resonant output stage for high-frequency AC control of the lamp (Figure 1). This is presently one of the most popular app ...
General Set-up Connections and functions Level A and Level
... Both jack inputs In A and In A accept audio signals. These can be oscillator outputs as well as any other audio signal. The video signal is output to a standard RCA-jack and can be connected to any video monitor or television. The VD-01 offers the following functions: ...
... Both jack inputs In A and In A accept audio signals. These can be oscillator outputs as well as any other audio signal. The video signal is output to a standard RCA-jack and can be connected to any video monitor or television. The VD-01 offers the following functions: ...
A Wide Locking Range Differential Colpitts Injection
... • The main concern for the frequency divider design is large locking range with low power consumption. • For high speed and low power operation LC-tank ILFD is the most suitable one among various types of frequency dividers because operating frequency is determined by the resonant frequency. • The I ...
... • The main concern for the frequency divider design is large locking range with low power consumption. • For high speed and low power operation LC-tank ILFD is the most suitable one among various types of frequency dividers because operating frequency is determined by the resonant frequency. • The I ...
PAWS - Western Carolina University
... 19) Monitor the frequency spectrum of the generated sine wave using the spectrum analyzer. 20) If the circuit generates a sine wave, but does not meet the design specifications, try adding extra capacitance a various points in the circuit. 21) When the circuit is working to specification, save a scr ...
... 19) Monitor the frequency spectrum of the generated sine wave using the spectrum analyzer. 20) If the circuit generates a sine wave, but does not meet the design specifications, try adding extra capacitance a various points in the circuit. 21) When the circuit is working to specification, save a scr ...
Amateur Radio Technician Class Element 2 Course
... T9A07 What is a good reason not to use a "rubber duck" antenna inside your car? A. Signals can be significantly weaker than when it is outside of the vehicle B. It might cause your radio to overheat C. The SWR might decrease, decreasing the signal strength ...
... T9A07 What is a good reason not to use a "rubber duck" antenna inside your car? A. Signals can be significantly weaker than when it is outside of the vehicle B. It might cause your radio to overheat C. The SWR might decrease, decreasing the signal strength ...
Chapter 5 Low-Noise Design Methodology
... • so the conversion gain is proportional to the magnitude of the local oscillator voltage. For maximum conversion gain, the local oscillator amplitude should be selected so that it drives the gate just to the point of transistor saturation. • The input signal is normally connected to the lower (clo ...
... • so the conversion gain is proportional to the magnitude of the local oscillator voltage. For maximum conversion gain, the local oscillator amplitude should be selected so that it drives the gate just to the point of transistor saturation. • The input signal is normally connected to the lower (clo ...
A more detailed Key Word List
... switching. A common transistor has three leads: base, collector, emitter. Tube – An electrical component that is used for amplification and switching. Unlike the transistor which can serve the same function, a tube consists of wire elements enclosed inside a glass envelope much like a light bulb. Tu ...
... switching. A common transistor has three leads: base, collector, emitter. Tube – An electrical component that is used for amplification and switching. Unlike the transistor which can serve the same function, a tube consists of wire elements enclosed inside a glass envelope much like a light bulb. Tu ...
Data Sheet - Laser Diode, Inc.
... Sensitivity is calculated using the noise voltage measured at 25 C at the output of a 3-pole Butterworth filter whose bandwidth equals that of the PINFET’s minimum specified bandwidth. Sensitivity is specified as the average optical power in dBm measured at 1300nm ...
... Sensitivity is calculated using the noise voltage measured at 25 C at the output of a 3-pole Butterworth filter whose bandwidth equals that of the PINFET’s minimum specified bandwidth. Sensitivity is specified as the average optical power in dBm measured at 1300nm ...
Laboratory Exercise 5
... radio stations into the limited AM radio frequency range, the maximum modulating frequency is limited to 7.5 kHz. Incidentally, FM radio, being transmitted at around 100 MHz can have a higher modulating frequency range, up to 20 kHz, which is why FM radio is higher fidelity than AM. A very simple AM ...
... radio stations into the limited AM radio frequency range, the maximum modulating frequency is limited to 7.5 kHz. Incidentally, FM radio, being transmitted at around 100 MHz can have a higher modulating frequency range, up to 20 kHz, which is why FM radio is higher fidelity than AM. A very simple AM ...
C. Wavelength
... frequencies. • When this complex mixture is embedded on a carrier, two sidebands are created that are mirror images. ...
... frequencies. • When this complex mixture is embedded on a carrier, two sidebands are created that are mirror images. ...
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.