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Domestic Solar Assisted Battery Charging Station with
Domestic Solar Assisted Battery Charging Station with

... • Comparing sine wave to a triangle wave to determine when to switch • Only 1 MOSFET in each leg is active at any given time ...
Copyright © 2004 IEEE. Reprinted from IEEE International Symposium on
Copyright © 2004 IEEE. Reprinted from IEEE International Symposium on

... the multiplexer. In this study, we injected pulse-modulated RF signals into the EXTCLK input pin, observed the effect on the ripple-counter output, and recorded the required RF frequency and power level to trigger the output state change. In the normal circuit operation, the ripple counter counts ac ...
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Recent Advances In RF Integrated Circuits

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... Introduction Many measurement applications (for example, electric and gas meters) require a way to communicate electronically with a central office so that measured data can be reported back to the central office and new tariffs can be set in the remote site. (1) Telephony provides a convenient mean ...
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Remote Emergency Notification System (RENS)

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... We can use the transfer function, H(jw), and the corner frequency, wc, to easily determine the characteristics of a filter.  If we consider the behavior of the transfer function as w approaches 0 and infinity and look for when H nears 0 and 1, we can identify high and low pass filters.  The corner ...
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Integer N Frequency Synthesizer using Phase Lock Loop

... an output voltage, which is proportional to the phase error of the two signals. This output voltage passes through the loop filter and then as an input to the voltage Controlled oscillator (VCO) controls the output frequency. Due to this self correcting technique, the output signal will be in phase ...
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... particular application. If a sine wave is used, the device will operate at a frequency lower than the resonant frequency (Fo) with a lower sound pressure level. The reason for this is the loss of energy, through the time lag between peak Deflections as shown in Fig. 7. It is important that a clean s ...
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casio cz waveforms and oscilloscope

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... CRO is generally an x-y plotter; on a single screen it can display different signals applied to different channels. It can measure amplitude, frequencies and phase shift of various signals. Many physical quantities like temperature, pressure and strain can be converted into electrical signals by the ...
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Resistor Controlled Voltage-Mode Eight

... The phasor diagram of Fig.3(a) is shown in Fig.3(b). Now, the CCII(-) A, CCII(-) B and CCII(-) C in Fig.3(a) are replaced by three output MOCCIIA, two output MOCCIIB and three output MOCCIIC respectively. At one negative terminal of each MOCCII, components used are same as those in all CCII(-) of Fi ...
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NBB-312 CASCADABLE BROADBAND GaAs MMIC AMPLIFIER DC TO 12GHz Features

... Care should also be taken in the resistor selection to ensure that the current into the part never exceeds maximum datasheet operating current over the planned operating temperature. This means that a resistor between the supply and this pin is always required, even if a supply near 8.0V is availabl ...
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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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