Unit3ReviewAssignment_KalaniHoopii_.docx

Unit3ReviewAssignment_KalaniHoopii_.docx - 2 The zero-level...

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2. The zero-level detector is one application of a (a) comparator; non-zero detection (b) differentiator (c) summing amplifier (d) diode 4. The effects of noise can be reduced by (a) lowering the supply voltage (b) using positive feedback (c) using negative feedback (d) using hysteresis (e) answers (b) and (d); Hysteresis has positive feedback pg. 671 6. In a comparator with hysteresis, (a) a bias voltage is applied between the two inputs (b) only one supply voltage is used (c) a portion of the output is fed back to the inverting input (d) a portion of the output is fed back to the noninverting input; pg 671 8. A summing amplifier can have (a) only one input (b) only two inputs (c) any number of inputs; pg 679 any number of inputs can be used. 10. An averaging amplifier has five inputs. The ratio R f / R i must be (a) 5 (b) 0.2 (c) 1 12. In an ideal integrator, the feedback element is a (a) resistor (b) capacitor; pg. 687 feedback element is a capacitor that forms an RC
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