Audio Engineering

122 Chapter 4 of the nominally marked value (the three color bands) that the resistor is allowed to read and still remain within ...

Components 123 voltage from a battery, cannot be passed through a capacitor, but an AC signal, say it’s coming from transistor r ...

124 Chapter 4 Capacitors such as the electrolytic capacitor are polarity sensitive, which means that they have to be connected i ...

Components 125 numbers to represent capacitance. It’s much easier to understand the system by way of an example. Let’s look at t ...

126 Chapter 4 For AC applications, an approximate counterpart to the resistor is the capacitor. Again, a seemingly innocent two- ...

Components 127 Make sure the current meter’s positive terminal goes to the battery’s positive terminal. The current will be just ...

128 Chapter 4 4.1.4 Transistors Transistors are totally different from resistors, capacitors, and diodes. The latter are what ar ...

Components 129 be designed around four resistors and a capacitor as well as the usual input and output coupling capacitors. Howe ...

130 Chapter 4 the LM 386 audio power amplifi er on a chip! It’s actually been around for a considerable number of years, but it ...

Components 131 usually the case), you have to adjust the rest of the circuitry. Alternately the 741 could be designated as an os ...

132 Chapter 4 of terminals the output can be connected to. In the SPST switch there is just one. What if we had two terminals to ...

Components 133 SPST SPDT DPST DPDT Figure 4.9 : Switch terminals. SPST SPDT DPST DPDT Figure 4.10 : Different switch application ...

134 Chapter 4 fi rst thought. Apart from the switching differences, switches also come in different current ratings; the higher ...

Components 135 jack socket. This size of jack plug is almost always found with the headphones provided for portable radios and c ...

136 Chapter 4 example is seen in Figure 4.13. Like switches, jack plugs and sockets are more complex than they might at fi rst s ...

Components 137 high brightness levels, but they draw more current than the plain vanilla variety, so unless you really need extr ...

This page intended left blank ...

Power Supply Design John Linsley Hood Active systems such as audio amplifi ers operate by drawing current from some voltage sour ...

140 Chapter 5 (a) C2 C1 C3 0V V TR1 Mains input 5Z4 etc Reservoir cap Figure 5.1 : Full-wave rectifi er systems. (b) C2 C1 C3 D ...

Power Supply Design 141 (d) (^2) V out 1 3 5 4 6 etc 0V 0V Output waveform with f–w recification (e) C4 C3 C1 CAP ELEC C2 CAP E ...