Lesson 1/Learning Event 2
SOLID-STATE VOLTAGE REGULATOR
FIGURE 17. SOLID-STATE REGULATOR CIRCUIT.
Operation
This regulator is a static unit that is totally electronic in operation. In this configuration, the
contact points are replaced by zener diodes. The zener diodes produce a signal to the base of a
transistor whenever the electrical system voltage reaches the desired level. This signal reduces or
shuts off field current to reduce or stop alternator output. When thesystem voltage drops again, the
transistor
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