Voltage Regulators: The Basics

Voltage Regulators are used on small engine platforms that use a battery in the system. The batteries are normally used to power the starter and other accessories such as lights, radios, heaters, etc… The charging system consists of the Permanent Magnet AC Generator commonly known as an ACG; this includes both the flywheel which is a housing that includes permanent magnets and a stator or charging coil. The Flywheel spins around the stator coil and this creates an AC Voltage and Current. The regulator utilizes the AC Current from the AC Generator and rectifies it into DC Current to charge the battery. The voltage regulator also maintains a predetermined voltage output to the battery; this set point is usually determined by the end customer and/ or battery manufacturer.

There are several different types of regulators that can be used be the end customer. These various types and methods are selected based on many factors such as cost, expected load drain, expected vehicle use, environmental conditions, along with several other application specifics. Trombetta can walk through the details of your application and help select the one that is the best match for your specific application. We can also design a new regulator if there are specific requirements that are not covered by one of our existing products.

The different Voltage Regulator types we design and manufacturer today range from a low cost half wave regulator that only provides the battery with as little as 3 amps and we also manufacture regulators up to a 3 Phase 55 amp regulator that has extreme application requirements. Please let us help you select the product that is right for your application!