In other Engineering Fields, a rectifier refers to a diode. In Telecom, the term rectifier refers to a battery charger/power supply. The high frequency AC current passes through a simple diode bridge circuit then connects to and charges the battery directly, requiring no other electronics. Polar coined the term DC alternator for a brush-less Permanent Magnet Alternator our electrical output is a high frequency (400 to 800 Hz), low voltage output optimized for conversion into DC without using a switch mode power supply as illustrated by Caterpillar and Cummins. There are many types of AC and DC alternators the Caterpillar and Cummins White Papers implied that all DC generators use the same technology and have the same efficiency. The Caterpillar and Cummins White Paper Reports argue in favor of AC generators, but the example(s) used in the comparison of DC generator technology leave Polar’s technology out of the picture. This is particularly true if the presenter is arguing “apples with oranges”. It is easy to argue numbers but difficult to make sense of all of it.
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