105年 - 105 國立嘉義大學_碩士班招生考試試題_電機工程學系：電子學#146119

1. Determine V_o and io in the circuit shown in Fig 1.(20%)

2. Determine V_o in the circuit shown in Fig 2.(13%)

(a) 0.15 mA,

(b) 1.5 mA,

and(c) 15 mA.(18%)

4. Assuming n = 2, find the value of the diode small-signalresistance r_d at bias currents of

5. For the circuit in Fig. 3, select a value for “RE” so that thetransistor saturates with a forced β of 35. Assuming VEB = 0.7V and VEC,sat = 0.2 V. (10%)

(a)What is the type of transistors used, PMOS or NMOS?Design the W/L ratio of each

(b) Q₁,

(c) Q₂, and

(d) Q₃ MOSFETs, such that the source voltage V1 of the transistor Q₁ is+1 V and source voltage V₂ of the transistor Q₂ is -1 V.