Finale Aktion Regulator rectifier MOSFET

Regulator / rectifier with MOSFET technology

Original quality spare part

This new technology has renewed the concept of three-phase ladder regulators. For many years, these devices used Silicon Controlled Rectifiers (SCR) to direct the excess energy from the generator to ground in order to be able to keep the battery voltage constant.

This was widely accepted and proved adequate for small and medium generators in internal combustion engines. However, the new regulator technology based on MOSFET transistors is becoming more and more popular because of better performance and many other interesting advantages over SCR.

The energy demand in modern motorcycles and ATV is increasing more and more nowadays due to the use of additional electronic modules such as fuel injection system, high efficiency lighting, numerous accessories and so on. This means a large amount of energy coming out of the generator and the SCR shunt regulator is not able to regulate it yet.

Main reason is the low energy efficiency, the internal losses of the regulator cause overheating and premature damage when currents greater than 35A are passed through the regulator. As a result, SCR technology has reached a limit and is therefore not recommended for large vehicles with high energy consumption.

To solve this previously mentioned problem, it was necessary to reduce the losses in the circuit. When the SCR is active (generator current to ground), there is a high voltage drop in forward direction (about 1.5V @ 35A) because it works like a power diode. If the current now increases, the power dissipation (e.g. heat) increases in parallel.

DISAPPEARANCE OF THE DEVICE (W) = AVERAGE CURRENT (A) X VOLTAGE DROP (V)

Advantages:

– 3-PHASE SHUNT CONTROLLER WITH HIGH ENERGY EFFICIENCY

– OUTPUT POWER UP TO 50A

– PRECISE ELECTRONIC CONTROL OF BATTERY VOLTAGE PREVENTS IGNITION

-. LOWER HEAT DEVELOPMENT LEADS TO LONGER LIFE

– LOW-POWER STANDBY MODE WHEN VEHICLE IS NOT IN USE

Unlike other transistors, MOSFET transistors can be pronounced as voltage-controlled switches, because a completely different semiconductor architecture makes them more efficient in the use of energy.

When used, they behave like a low rated resistor for high currents, conducting all the excess current from the generator into the ground. As a result, the voltage drop is very low (less than +/-0.2V @ 35A) and power dissipation is dramatically reduced. This directly affects lower device heating and long regulator life.

MOSFET technology has been continuously improved in recent years because of its wide application in consumer and industrial electronics. The semiconductor integration technology offers higher power handling in reduced space with excellent efficiency. In addition, they enable faster switching, higher reliability and better control under high stress.

Rectifier diode power is another important factor when it comes to power dissipation. Because all the output current flows through them, they must provide both great robustness and stability, as well as efficient current control. Our MOSFET regulators use high current rectifier diodes with extremely low voltage drop, which help prevent overheating and meet the previously mentioned requirements.

The internal CONTROLLER has been completely redesigned to match the requirements of the MOSFET transistor. The battery voltage is constantly monitored to adapt the output current to the different consumption situations. The new electronic control avoids the use of the ignition lead, reduces the number of connections and simplifies the cable topology. It also has low energy consumption in standby mode, which results in very little discharge of the battery when the vehicle is not in use.

This new technology thus allows to increase the output power of the regulator up to 50A while having excellent voltage regulation. Additional benefits such as reduced heating, high efficiency and advanced electronic control make this new regulator the first choice to control the battery circuit of your vehicle.

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