He is brainy but a scaredy cat as he says in the books. He has several friends and has a sister name Thea ,two cousins named Trap and Dino ,a nephew named Benjamin ,a granfather named William and more. He likes Cheesy Chews. He is the main character of the series. He is also a secret agent.
High Efficient Furnace Blower Motors. Utilizing ECM Technology. ECM (electronic commutated motor) is a brushless DC motor with a permanent magnet rotor and a built in inverter. DC motors are more efficient than AC motors. They are also more expensive.
In short, PWM operates like a switch which constantly cycles on and off, thereby regulating the amount of power the fan or pump motor gains. The PWM system that is used for controlling fans and pumps works with the motor, either getting +12V (full power) or 0V (no power). To have a better understanding how this works, take a look at the chart bellow. So, the motor is being fed impulses of power.