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- Figure 1 The three basic types of DC motors.
- Figure 2 Switching the direction of a DC motor with two
power transistors, for a dual polarity voltage supply.
- Figure 3 An H-Bridge using NPN (e.g. TIP-121) and PNP
(e.g. TIP-126) power Darlington transistors. The two unmarked NPN
transistors are general purpose signal transistors (e.g. 2N3904).
Skip Carter
2008-08-20