Wald motor Germany Wald model Wald price

Wald motors consist of the motor body and the driver, representing a typical mechatronic product. A brushless motor refers to a motor without brushes and a commutator (or slip rings), also known as a commutator-less motor. When motors were first invented in the nineteenth century, the practical motors produced were of the brushless type, namely AC squirrel-cage asynchronous motors, which were widely used. However, asynchronous motors have many insurmountable defects, resulting in slow development of motor technology. Transistors emerged in the mid-twentieth century, leading to the adoption of transistor commutation circuits to replace brushes and commutation