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sdf - Milwaukee School of Engineering
sdf - Milwaukee School of Engineering

...  Calculate the currents and voltages associated with the circuit shown on page 4 and record these values directly in Table 1 or within your laboratory notebook. ...
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... The total noise is equal to the sum of the ripple and noise components. Simple steps should be taken to assure that there is minimum pickup noise due to the high frequency events, which can be magnified by the large ground loop formed by the oscilloscope probe ground. This means that even a few inch ...
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... The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output, so there is no load charge on the reference of input lines. ...
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... over and under conditions common in most power systems. Combine any of the PM750’s I/Os with these alarms and communicate through its 2-wire RS-485 port for remote monitoring and control capabilities for greater control over the performance and overall health of your systems. Perfect for demand cont ...
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... The Schottky diode, D1, has a voltage rating of 60V to allow for a 42V maximum input voltage. If the input voltage is below 38V, a 40V Schottky diode may be used with a lower forward voltage to improve efficiency. The input capacitor, C2, is not always required. This capacitor is placed on the evalu ...
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... of the triode region. So, even though normal practice would be to use the 2kΩ range when measuring rDS less than 2kΩ (for better measurement resolution), in this case, we’ll live with lower resolution so as not to violate the “small vDS” condition. L6. Starting with vGS ≈ +5V, measure rDS and vGS. T ...
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... If the resistor values obey the relationship R4/R3 = R2/R1, then the output voltage expression reduces to R vo  2 v 2  v1  . R1 This ideal result depends on a perfect match between the two resistor ratios, a condition that cannot be achieved in practice. As we have seen in the lectures, differen ...
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Buck converter



A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.
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