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48V DC BLDC Design

Kundan Kumar7
Prodigy 20 points
Other Parts Discussed in Thread: DRV10987, DRV8320

Hello TI,

Our customer want to design of 48V DC BLDC, Please suggest relevant solution.

Specification as below

Type of Fan : External Rotor

Operating voltage range : 45V- 54V DC

Power Input : 30W

Max. Speed : 300-320 RPM.

 

  • 0
    TI__Guru 63420 points

    Kundan,

    Thanks for posting on the Motor Drives Forum.

    A few more questions so that we can suggest a part:

    1. Do you have a motor spec we can look at?
    2. Will there be hall sensors included?
    3. Will you be using an MCU?
    4. Do you have a requirement for the control scheme (Trapezoidal/FOC/etc)?
    5. Will the fan blades be visible and is it okay if there is blade movement when the motor driver starts/initializes?

    Regards,

    -Adam

  • 0 in reply to Adam Sidelsky
    Prodigy 20 points

    Hi Adam,

    Thanks for reply

    below are the answer 

    please find attachment for BLDC Spec. 

    1. Do you have a motor spec we can look at? -- PM BLDC Type
    2. Will there be hall sensors included? -- No,Sensor less
    3. Will you be using an MCU? -- Yes
    4. Do you have a requirement for the control scheme (Trapezoidal/FOC/etc)? -- Trapezoidal
    5. Will the fan blades be visible and is it okay if there is blade movement when the motor driver starts/initializes?
  • 0 in reply to Kundan Kumar7
    TI__Mastermind 19720 points

    Hi

    We do not offer any all in one devices like the DRV10987 that will drive and control a 48V motor. So you will have to use a Gate drive and external FETs and current feedback to control the motor. look at the DRV8320. The EVM has Firmware for driving a motor with sensorless control.