speed controller

  1. K

    Help with wiring a single phase, 2 speed motor to an autotransformer

    Hi, I am looking for some advice on wiring a single phase, 2 speed motor to an autotransformer 5 position speed controller. I have this fan: Helios SVS125B – Single phase, 2 speed And an ATC1-1.5A, 5 position speed controller. Wiring Diagrams: Fan: The motor side is already pre wired and...
  2. D

    DC Motor with DPDT and Speed Control - Help Needed

    I'm working on a machine that I need to help with my business. Essentially, I am looking for something that works similar to a VHS Rewinder / Fast Forwarder that has variable speed. See this video on Youtube for what I am trying to accomplish. What I have been looking into is having two DC...
  3. A

    single phase motor control

    Hello, I use triac to control the permanent capacitor motor. I have attached my schematic and two methods I found for cutting signals. 1. power is applied for several continuous half-cycles and then removed for several half-cycles 2. use the dimming method please help me with their...
  4. M

    Treadmill DC motor receiving higher than rated voltage.

    Hello, My treadmill stopped working (i.e. belt no longer moves) with a loud popping sound. When I inspected the motor-controller board I found a damaged 22 ohms resistor that I replaced. Then, I decided to see if the board works fine, so I put the board back and I used my DMM to measure the...
  5. G

    Help Identifying Component

    This part came off an ESC on a drone. I think it's a fet but can't find any info..Please help.
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