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... harmonics and random amplitude noise. Power system harmonics are the predominant cause of premature or delayed zero crossing detection. Random noise may also cause multiple zero crossings. The dual optoisolator method can effectively reject noise which generates multiple zero crossings by using only ...
... harmonics and random amplitude noise. Power system harmonics are the predominant cause of premature or delayed zero crossing detection. Random noise may also cause multiple zero crossings. The dual optoisolator method can effectively reject noise which generates multiple zero crossings by using only ...
W-band push–push monolithic frequency doubler in 1
... D 90 GHz) at the common collector node implement the simple impedance match for the doubling frequency. T3 can also ground the fundamental frequency f0 thus improving the fundamental suppression. All transistors have a size of 1 15 m2 , which is a good compromise between fT and RF power. Q1, Q2 a ...
... D 90 GHz) at the common collector node implement the simple impedance match for the doubling frequency. T3 can also ground the fundamental frequency f0 thus improving the fundamental suppression. All transistors have a size of 1 15 m2 , which is a good compromise between fT and RF power. Q1, Q2 a ...
a high-drive fully differential current mode operational
... implemented as COA-RC ones by using adjoint network principle [3]. The circuit symbol of fully differential COA is reported in Figure 1. COA ideally exhibits zero input resistance and infinite output resistance and current gain. Differential signalling has many advantages such as; better noise perfo ...
... implemented as COA-RC ones by using adjoint network principle [3]. The circuit symbol of fully differential COA is reported in Figure 1. COA ideally exhibits zero input resistance and infinite output resistance and current gain. Differential signalling has many advantages such as; better noise perfo ...
chapter 3 analog signal processing modules using dvcc
... The simplest possible design approach for obtaining FD filters is to employ two single-ended filters. Although easy to design and implement, FD filters obtained using this approach are, in general, inefficient in terms of area and power. For instance, two active elements would be required for an FD ...
... The simplest possible design approach for obtaining FD filters is to employ two single-ended filters. Although easy to design and implement, FD filters obtained using this approach are, in general, inefficient in terms of area and power. For instance, two active elements would be required for an FD ...
CAMBRIDGE ELECTRONICS LABORATORIES
... physically larger LC "L" implementation (Figure 2b) can remove energy in the voice band to any desired degree by selecting appropriate filter constants. The inductor must be specified such that under full load it does not saturate, and its resistance does not cause excessive voltage drop. Typical st ...
... physically larger LC "L" implementation (Figure 2b) can remove energy in the voice band to any desired degree by selecting appropriate filter constants. The inductor must be specified such that under full load it does not saturate, and its resistance does not cause excessive voltage drop. Typical st ...
EC-505 - ITM GOI
... This first-order low pass active filter consists simply of a passive RC filter stage providing a low frequency path to the input of a non-inverting operational amplifier. The amplifier is configured as a voltage-follower (Buffer) giving it a DC gain of one, Av = +1 or unity gain as opposed to the pr ...
... This first-order low pass active filter consists simply of a passive RC filter stage providing a low frequency path to the input of a non-inverting operational amplifier. The amplifier is configured as a voltage-follower (Buffer) giving it a DC gain of one, Av = +1 or unity gain as opposed to the pr ...
Ringing artifacts
In signal processing, particularly digital image processing, ringing artifacts are artifacts that appear as spurious signals near sharp transitions in a signal. Visually, they appear as bands or ""ghosts"" near edges; audibly, they appear as ""echos"" near transients, particularly sounds from percussion instruments; most noticeable are the pre-echos. The term ""ringing"" is because the output signal oscillates at a fading rate around a sharp transition in the input, similar to a bell after being struck. As with other artifacts, their minimization is a criterion in filter design.