CHIHAI 6–30V PWM Speed Controller for Brushless Motors with Built-In Driver
CHIHAI 6–30V PWM Speed Controller for Brushless Motors with Built-In Driver
CHIHAI MOTOR
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Overview
The CHIHAI MOTOR6–30V PWM motor controller adjusts the speed and direction of compatible brushless DC motors that already contain their own commutation driver. A rotary knob provides stepless adjustment, with2kHz and20kHz PWM frequency settings. Choose the bare green board or the version with enclosure.
This board sends control signals and routes the motor supply. It is not a three-phase commutation ESC for an undriven brushless motor. Brake/stop control works only with a motor that supports the corresponding function.
Specifications
| Parameter | Value |
|---|---|
| Supply | 6–30V DC; match the motor voltage |
| Bare board size | 47×32mm; mounting-hole spacing reference40mm |
| Bare board net mass | Approximately17g |
| Speed adjustment | Stepless rotary-knob PWM control |
| PWM frequency | 2kHz or20kHz; default20kHz |
| Frequency jumper | Two pins near terminals:20kHz; two pins near speed knob:2kHz |
| Controls | Speed knob, stop button and direction-change button |
Controls and Connection
Connect a suitable DC supply to Power+ and Power−, and the motor supply leads to Motor+ and Motor−. Connect the compatible motor's control leads to PWM and CW/CCW as shown below. The button nearer the knob is the stop control; the button nearer the capacitor changes direction. Stop the motor before reversing direction or changing connections.
Never reverse the board supply polarity. Incorrect supply connection can damage the controller. Do not connect AC mains. The board does not measure FG speed-feedback signals: isolate the unused FG lead and keep it disconnected from controller terminals. Verify voltage, motor current demand and wiring compatibility before installation; a controller current or power rating is not specified here.
Motor-Family Wiring References
The speed-control and brake arrangements below are alternatives. In the illustrated brake arrangement, speed regulation is unavailable. Motor support for braking and direction is required; the board does not add these capabilities to every brushless motor.
BLDC2418 / BLDC2430 / BLDC838 silver-housing references
| Controller terminal | Speed-control mode | Brake-mode alternative |
|---|---|---|
| Power V+ / V− | DC supply positive / negative,6–30V within motor limits | |
| Motor VCC+ / GND− | Motor red supply lead / black supply lead | |
| CW/CCW | Yellow motor direction lead | |
| BRAKE | Leave unconnected | Blue motor control lead |
| PWM | Blue motor speed-control lead | Leave unconnected |
Green FG feedback lead: leave unconnected to this controller. Motor lead colors apply only to the stated motor reference; verify the actual motor diagram.
BLDC2418 black-housing6V reference
| Controller terminal | Speed-control mode | Brake-mode alternative |
|---|---|---|
| Power V+ / V− | DC supply positive / negative,6–30V within motor limits | |
| Motor VCC+ / GND− | Motor red supply lead / black supply lead | |
| CW/CCW | Orange motor direction lead | |
| BRAKE | Leave unconnected | White motor control lead |
| PWM | White motor speed-control lead | Leave unconnected |
Yellow FG feedback lead: leave unconnected to this controller. Motor lead colors apply only to the stated motor reference; verify the actual motor diagram.
BLDC3525 / BLDC2838 / BLDC3650 / BLDC4260 black-housing references
| Controller terminal | Speed-control mode | Brake-mode alternative |
|---|---|---|
| Power V+ / V− | DC supply positive / negative,6–30V within motor limits | |
| Motor VCC+ / GND− | Motor red supply lead / black supply lead | |
| CW/CCW | White motor direction lead | |
| BRAKE | Leave unconnected | Blue motor control lead |
| PWM | Blue motor speed-control lead | Leave unconnected |
Yellow FG feedback lead: leave unconnected to this controller. Motor lead colors apply only to the stated motor reference; verify the actual motor diagram.
Applications
Use this controller with compatible internally driven brushless motors or suitable brushless fans for manual speed adjustment in small mechanisms. Confirm the actual motor pinout and supported PWM/brake behavior; model-family examples do not guarantee compatibility with all versions.
What's Included
One PWM controller in the selected Bare Board or With Enclosure version. The enclosure version includes its enclosure. Motor, power supply and external connection wiring are not included.
Visual Details
