In the positive clipping circuit of Fig. 2-17(a), the diode is ideal and v_i is a 10-V triangular wave with period T. Sketch one cycle of the output voltage v_o if V_b = 6 \text{V}.
The diode blocks (acts as an open circuit) for v_i < 6 \text{V}, giving v_o = v_i. For v_i ≥ 6 \text{V}, the diode is in forward conduction, clipping v_i to effect v_o = 6 \text{V}. The resulting output voltage waveform is sketched in Fig. 2-33.