The L9407F is a monolithic multifunction alternator
voltage regulator intended for use in automotive ap-
plication. It includes the control section, the field pow-
er stage, fault diagnostic circuit which drives a
warning lamp, and the protection against short cir-
cuitsThe alternator's voltage regulator performs the fol-
lowing main functions:
– 1) voltage regulation
– 2) protection
– 3) control fault diagnosis
– 4) load response control
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