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Increased Operating Distance, Nickel-Plated Brass Housing
Increased Operating Distance, Nickel-Plated Brass Housing

Building a Stable DAC External Reference Circuit
Building a Stable DAC External Reference Circuit

... maintains a firmly established voltage seen by the DACs reference circuit at all times. This configuration now yields the best linearity performance of the DAC. An example reference driving circuit is shown in Figure 1 below for a dual ±10-V reference circuit used with the TI DAC7744. The DAC7744 pi ...
End 1.4 The Semiconductor Diode
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... placed in the hold mode, and the internal DAC is set to midscale. The comparator determines whether the SHA output is above or below the DAC output, and the result (bit 1, the most significant bit of the conversion) is stored in the successive approximation register (SAR). The DAC is then set either ...
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IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

... attenuate undesired out of band signals. RF filters typically use passive inductors; however, on-chip passive inductors are notorious for their low quality factor and the large amount of chip area they consume [1], [2]. As a result, RF filters are usually implemented off-chip, a process which adds e ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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