DZE Replacement regulator rectifier 7003665

MOSFET technology regulator/rectifier
Original-quality replacement part
This new technology has transformed the concept of three-phase regulators. For many years, these devices used silicon-controlled rectifiers (SCRs) to divert excess energy from the generator to ground and thereby keep the battery voltage constant.
This was widely accepted and suitable for small and medium-sized generators in combustion engines. However, the new regulator technology based on MOSFET transistors is becoming increasingly popular due to its improved performance and many other interesting advantages over SCRs.
Today, the energy demand of modern motorcycles and quads is increasing steadily due to the use of additional electronic modules, such as the injection system, high-efficiency lighting, numerous accessories, etc. This requires a large amount of energy from the alternator, which the SCR shunt regulator can no longer control.
The main reason is its low energy efficiency: internal regulator losses cause overheating and premature damage when currents above 35 A pass through it. Consequently, SCR technology has reached its limit and is therefore not recommended for large vehicles with high energy consumption.
To solve this problem, it was necessary to reduce circuit losses. When the SCR is active (generator current to ground), a high forward voltage drop occurs (approx. 1.5 V at 35 A), since it operates like a power diode. As the current increases, the power dissipated (e.g. heat) increases in parallel.
DEVICE POWER DISSIPATION (W) = CONDUCTION CURRENT (A) × VOLTAGE DROP (V)
Advantages:
- THREE-PHASE SHUNT REGULATOR WITH HIGH ENERGY EFFICIENCY
- OUTPUT POWER OF UP TO 50 A
- PRECISE ELECTRONIC BATTERY VOLTAGE CONTROL PREVENTS MISFIRES
- LOWER HEAT GENERATION PROVIDES A LONGER SERVICE LIFE
- LOW-POWER STANDBY MODE WHEN THE VEHICLE IS NOT IN USE
Unlike other transistors, MOSFET transistors can be configured as voltage-controlled switches because, thanks to a completely different semiconductor architecture, they are more efficient at handling power.
When operating, they behave like a low-rated-value resistor for high currents, diverting all excess current from the generator to ground. This results in a very low voltage drop (less than +/-0.2 V at 35 A) and a drastic reduction in power dissipation. This directly translates into less device heating and a longer regulator service life.
MOSFET technology has been continuously improved in recent years due to its widespread use in consumer and industrial electronics. Semiconductor integration technology offers greater load capacity in a compact space with excellent efficiency. It also enables faster switching, greater reliability and better control under intensive operating conditions.
The performance of rectifier diodes is another important factor in power dissipation. Since all output current flows through them, they must provide both high robustness and stability and efficient current control. Our MOSFET regulators use high-current-optimised rectifier diodes with an extremely low voltage drop, helping to prevent overheating and meet the requirements mentioned above.
The internal controller has been completely redesigned to meet the requirements of the MOSFET transistor. The battery voltage is constantly monitored to adjust the output current to different load conditions. The new electronic control system eliminates the need for the ignition wire, reduces the number of connections and simplifies the wiring topology. It also has low power consumption in standby mode, resulting in very little battery discharge when the vehicle is not in use.
This new technology therefore makes it possible to increase the regulator's output power to 50 A while maintaining excellent voltage regulation. Additional advantages such as reduced heating, high efficiency and enhanced electronic control make this new regulator the best choice for controlling your vehicle's battery circuit.