# Seven Times Voltage Rectifier Circuit 2 Basiccircuit Circuit                                                  ## Seven Times Voltage Rectifier Circuit 2 Basiccircuit Circuit

Figure 2.43: Voltage sweep for V(2). Example 2.3 Circuit with VCVS. As an example consider the circuit of Fig. 2.46.This circuit is composed by an independent DC voltage source with a value of 10 v, three resistors, and a VCVS whose voltage is 7 times the voltage drop across resistor R2.

This, of course, comes from Equation (2.1) and Equation (2.28). If we now apply Thevenin's Theorem to the portion of the circuit to the right of the dotted line, we obtain the equivalent circuit shown in Figure 2.13(b). Notice that the resistance in our equivalent circuit has the same voltage (2 VpK) on both ends, which produces a net voltage of 0.

A common-collector (CC) amplifier is shown in Fig 2.22. The complete amplifier circuit is shown in Fig 2.22A, while the small signal version is in Fig 2.22B. The open circuit de base voltage is 5 V, so the emitter bias current is 4.4 mA, leading to r.=5.91 n. The follower of Fig 2

Two other basicrelationshipsalso apply in a simple dc circuit: 1. The currentvalue is tlte samethrough every part of the circuit, unlessa part of the circuit involves parallel-connectedpaths. Thus, in a circuit (A) of Fig. 3-2, all the resistorsin the circuit are connectedin seriesso that the sirmecurrent will flow through eachresistor.

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As a result,the current in an inductive circuit lags behind the voltage by 90. This is shown vectoriallyin Fig. 2-8B, and as a pair of sine waves in Fig. 2-8C.The ac circuit that contains a resistance and an inductance (Fig. 2-9B) shows aphase shift (), shown vectorially in Fig. 2-9A, other than the 90 difference seen inpurely inductive circuits.