Power Electronics and Motor Drive Systems

2.3. Circuit With DC Source and Inductive Load

For the circuit shown in Fig. 2.3(a), when the switch S is closed at t = 0⁺, the following equation holds:

didt=VL

(2.20(a))

or

Figure 2.3 Circuit with dc source and inductive load.

(a) Circuit with dc source, switch, and L load; (b) equivalent circuit when the switch is closed; (c) equivalent circuit when the switch is opened; (d) time variations of i and v_L.

i=VLt

(2.20(b))

Moreover, the energy stored in the ...