General Boat Articles

Yamaha Wins Innovation Award for Charging System

The new charging system is contained within the 425-hp XTO Offshore B outboard engine.

Yamaha Marine won an Innovation Award at this year’s International Boatbuilders’ Exhibition & Conference (IBEX) for its Phase Angle Control Charging System that provides electrical power for high-need devices like air conditioning, gyro stabilizers, sound systems and console electronics without needing a generator. The award came in the Electrical Systems Category.

No Generator needed

The Phase Angle Control Charging System made its debut in the 425-hp XTO Offshore® B model. It’s a three-phase under-flywheel charging system that’s contained on the engine. It produces up to 96 amps of net charging power per engine at idle as well as a higher net amp output across all rpm. It can also handle temporary loads of 400 amps and beyond depending on battery condition without sacrificing safe-starting capability.

 

The system works in three phases to protect against over-charging.

High electrical demand often takes place when the engines are running at low rpm, such as trolling or cruising at low speed. Recharging batteries would then require running the engines at high rpm. The Phase Angle Control system adjusts the intensity of the engine stator’s magnetic field to increase electrical output so it’s not rpm dependent. Yamaha says it produces up to 65 percent more maximum net charge at idle and the system is “stackable” so multiple outboards generate that much more electrical power.

 

In a triple-engine configurations, the system makes three times the electrical power.

It uses built-in battery isolation circuitry to protect batteries against accidental reverse polarity connections without fuses and the system is compatible with conventional charging systems when properly wired. Yamaha says it does all this while keeping the starting battery safely charged. It’s also designed to provide maximum power output at low rpm. To learn more about the system, click here.