In differential-mode, ....... Select one: a. only one supply voltage is used b. the outputs are of different amplitudes c. the gain is one d. opposite polarity signals are applied to the inputs

Consider a buck converter with the controlled switch as MOSFET and the uncontrolled switch as diode, the input to buck converter is 60 V. The MOSFET is turned on and off for 20 msec and 10 msec periodically. Assuming ideal components, the output voltage of the buck converter is

The average value of the output voltage with PWM is Vo = 5 V. If the on state duration Ton is 5 µs and supply voltage Vin = 20 V, find the duty ratio d, switching period Ts and switching frequency fs of the system. Draw the waveforms for Vin and Vo voltages stating on and off durations.

(a) An LM35 integrated circuit has a temperature sensor and its associated signal conditioning combined into one package. It provides a calibrated output of 10 mVolt/ºC and is powered by a 5 volt do supply. For the circuit shown in Figure Q2 (a), find the amplified voltage Vout if the temperature is 11 °C. When measuring the output voltage Vout is it analogue or digital, single ended or differential? Explain your choice.