Register To Comment
Page 1 of 3 123 LastLast
Results 1 to 10 of 23

Thread: Questions About 200A (or more) Brushless ESCs

  1. #1
    R9000's Avatar
    Member

    Status
    Offline
    Name
    Rory Charlesworth
    Robots
    [AW] Anty-Clockwise 2 [AW] Brushless Pizza [FW] Aegis
    Location
    Sheffield
    Posts
    527
    Post Thanks / Like
    Anyone have any experience with the Hobbyking Turnigy Monster?
    https://hobbyking.com/en_us/turnigy-...___store=en_us

    I'm looking into running some of the SkyRC Toro motors at 9 or 10S, and I need an ESC that will manage (the SkyRC Beasts won't cut it). The reason I ask is because the Hobbyking page says this:

    WARNING
    This is an R/C plane/heli only ESC. Do not attempt to use it to power car, buggy, skateboard, go-kart or similar machines. The programming logic is only designed for R/C Planes and Heli and will burn if applied to other devices.

    This makes little logical sense to me. Is it that the ESC can't handle large current spikes or something, or are they just trying to cover their butts legally? If this isn't a good choice, does anyone know any other reasonably priced 9 or 10S 200A ESCs? Cheers.

  2. #2
    TechAUmNu's Avatar
    Roboteer

    Status
    Offline
    Name
    Euan Mutch
    Robots
    Triforce(HW) (in progress) A200S & A450S (ESC) (in progress)
    Location
    Edinburgh, UK
    Posts
    207
    Post Thanks / Like
    That disclaimer is just so they don't get loads of people trying to return them after they blow them up trying to run electric bikes or skateboards. As long as you understand what you are doing its normally quite hard to break them.

    The main thing is to not have your battery wires too long or the inductance of the wire causes a voltage spike which blows up the MOSFETs on the board. So long as you run them at least 2s below what they are rated for then you will *probably* be fine.

    What are you using them to run? Weapon or drive? If you just mash the stick to full throttle instantly then it will pull a ridiculous amount of current which might cause it to explode too. So not good for a drive motor.

  3. #3
    R9000's Avatar
    Member

    Status
    Offline
    Name
    Rory Charlesworth
    Robots
    [AW] Anty-Clockwise 2 [AW] Brushless Pizza [FW] Aegis
    Location
    Sheffield
    Posts
    527
    Post Thanks / Like
    Weapon, hopefully a bar spinner. It'll be plenty geared down and have a timing belt for some slip since the motor itself runs at 780kv.

  4. #4
    Maxamuslead's Avatar
    Roboteer

    Status
    Offline
    Name
    Mark-s
    Robots
    "Blacksmith" (FW) under construction
    Location
    Lincolnshire, Threekingham
    Posts
    182
    Post Thanks / Like
    what you planning Rory...... at FW large bar spinner by chance ?

  5. #5
    R9000's Avatar
    Member

    Status
    Offline
    Name
    Rory Charlesworth
    Robots
    [AW] Anty-Clockwise 2 [AW] Brushless Pizza [FW] Aegis
    Location
    Sheffield
    Posts
    527
    Post Thanks / Like
    That's for me to know and for you to see explode.

  6. #6
    typhoon_driver's Avatar
    Member

    Status
    Offline
    Name
    Gary Cairns
    Robots
    Hornet 2 - retired Boner - retired Smidsy - Sold 540 - Sold PP3D - Active
    Location
    Aberdeenshire
    Posts
    4,389
    Post Thanks / Like
    solder some additional caps on the battery leads.

  7. #7
    R9000's Avatar
    Member

    Status
    Offline
    Name
    Rory Charlesworth
    Robots
    [AW] Anty-Clockwise 2 [AW] Brushless Pizza [FW] Aegis
    Location
    Sheffield
    Posts
    527
    Post Thanks / Like
    Quote Originally Posted by typhoon_driver View Post
    solder some additional caps on the battery leads.
    What size caps, and close to the ESC, or closer to the battery?

  8. #8
    Maxamuslead's Avatar
    Roboteer

    Status
    Offline
    Name
    Mark-s
    Robots
    "Blacksmith" (FW) under construction
    Location
    Lincolnshire, Threekingham
    Posts
    182
    Post Thanks / Like
    Quote Originally Posted by R9000 View Post
    That's for me to know and for you to see explode.
    are you planning to make a featherweight Tombstone ?

  9. #9
    typhoon_driver's Avatar
    Member

    Status
    Offline
    Name
    Gary Cairns
    Robots
    Hornet 2 - retired Boner - retired Smidsy - Sold 540 - Sold PP3D - Active
    Location
    Aberdeenshire
    Posts
    4,389
    Post Thanks / Like
    As big as you can fit. Make sure the voltage is high enough on the caps for your battery otherwise they will go pop. Close to the speed end and I forget what the variable is called but you want them to react, charge and discharge, as quick as possible.

  10. #10
    TechAUmNu's Avatar
    Roboteer

    Status
    Offline
    Name
    Euan Mutch
    Robots
    Triforce(HW) (in progress) A200S & A450S (ESC) (in progress)
    Location
    Edinburgh, UK
    Posts
    207
    Post Thanks / Like
    You want low ESR caps like these: https://www.digikey.co.uk/products/e...s=UPW1J681MHD6
    I have a huge bag of them if you want me to send you some.

    They need to be as close to the esc battery input as possible for them to have much effect.

Register To Comment

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •