High power 40V900W Hall free brushless controller constant speed electric garden machinery three-phase brushless driver _x000D_ _x000D_ modname=ckeditor_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ A new inventory of Hall free brushless controllers, with a nominal 40V900W, should be used for electric garden machinery. Similar to lawn mowers or lawn mowers, the drive operates at a limited speed and constant speed. Regardless of whether it is loaded or unloaded, it will be controlled within the nominal speed range. The specific speed depends on the electrical parameters, and not all motors have the same speed. It is limited to about 70% of the no-load speed when the motor is tested at a voltage of 36V. However, there are also benefits, as the motor speed will not change when the load is applied, and there is a large margin for motor speed preservation. Changes in the power supply voltage will not affect the speed changes. _x000D_ Not all motors can be compatible with brushless drives, and whether they are suitable or not depends on personal testing. Generally, brushless motors that are more compatible with medium and low-speed operation are more suitable. _x000D_ The actual test shows that the driver can operate at 30-43V without Hall high-power driver, and the internal workmanship and materials are very good. The high-power 75V190A MOS tube and high current parts are stamped with copper plates for positioning and soldering. Many large controllers only add copper wires and soldering at most. The motor output three-phase wire is 12AWG high-temperature resistant silicone wire, and the power plug is a 60A gold-plated socket. _x000D_ The controller wiring is defined in the introduction diagram. The detection signal line needs to be connected to a 10K resistor and the negative electrode. Two startup wires need to be connected to a control switch. After power is applied, the startup wire can be connected to start operation. _x000D_ The controller weighs about 300 grams. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_