Page 1137 - Basic Electrical Engineering
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LM 7805 5 V 7-25 V
LM 7806 6 V 8-25 V
LM 7808 8 V 10.5-25 V
LM 7809 9 V 11.5-25 V
LM7812 12 V 14.5-25 V
LM7815 15 V 17.5-25 V
LM7818 18 V 21-33 V
LM7824 24 V 27-38 V
Figure 17.14 (a) The physical configuration of a regulator IC; (b) typical circuit connection
In Fig. 17.15 has been shown a 5 V dc voltage regulator using a step-down
transformer, full-wave bridge rectifier, filter, and an IC 7805 regulator. A
circuit for an adjustable regulator using 78 xx series of ICs will be as shown
in Fig. 17.16.
