Question
For the following questions, tick all right answers, or fill in the blank. 1) For a voltage regulator, whose RRR = 80 dB, its output ripple is its input ripple is divided by 10000. 2) The higher the dynamic resistance of a Zener diode the less regulated the voltage across it is. 3) Non-linear devices (e.g. diodes, transistors) are generally biased and then operated over a large input signal to behave like a linear device that can be modeled by linear models. 4) The conclusion from the BJT and MOSFET amplifiers that: a) Common-emitter (or common-source) can guarantee low loading effects at the input and output b) Cascading various configurations of BJT (or MOSFET) amplifiers allow to improve the performance of amplifiers c) In a cascade amplifier, due to its low output Z, a common-base circuit should be placed at the end to guarantee low loading effect at the output. In general, when comparing the BJT and MOSFET transistors, three main differences, a) The device that depends more on geometry (width, length, etc.) is_______ b) The device is capable of higher amplification is ______ c) The device that dissipates no power at the input (zero input current) is ________
Explanation / Answer
1) true
2) true
3)true
4) a,)true b) true c) true
5)a) MOSFET b) bjt c) MOSFET
