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- Q625 - Electrical, Electronic, & Control Engineering
113. The component labeled «CR1» in the circuit shown in the illustration serves what functional purpose
CR1 establishes a constant reference voltage for the base of Q1, enabling voltage regulation. It functions as a Zener diode, clamping the base voltage despite input fluctuations. This configuration is characteristic of voltage regulator circuits, where a diode is used to maintain a stable voltage level for transistor biasing and output regulation.
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