Overview
The document presents technical details for the BSD-36 Series Control Driver designed for brushless motors. It features a 3-phase, 6-step PWM drive system optimized for cost efficiency and flexible speed control.

Features

• Low Cost: No need for external sensors such as encoders.
• Multiple Speed Setting Methods: Speed can be set via an internal volume, an external volume, or an external command voltage.
• Speed Monitoring: Speed feedback is available through pulse output.

Specifications

• Model Number: BSD-36-＊＊＊＊-△＊＊＊ (specific models referenced on motor pages).
• Speed Adjustment Interface: Options B, C, or D:
  - B: Connector type using CN4
  - C: Board terminal input via J1-J3
  - D: On-board volume adjustment
• Input Power Supply: 12V or 24V ±5%, depending on motor specifications.
• Maximum Continuous Current: Pre-set according to motor output.
• Input Signals: Direction control, brake (3-phase short circuit), start/stop (motor free), alarm reset, speed control voltage (0.5–5.5V, 1000 rpm/V).
• Output Signals: Speed output via hall sensor pulses, alarm signal, direction output (high signal for clockwise rotation).
• Operating Environment: 0–50°C, humidity below 85% RH without condensation.
• Storage Environment: -20–85°C, humidity below 85% RH without condensation.
• Weight: 55 grams.

Note: The standard maximum speed is set at 5,000 rpm but can be customized to exceed this upon request.

Functional Description

The driver uses a 3-phase bridge circuit controlled by a motor drive IC. Hall sensors provide feedback for commutation. Speed setting voltage controls the motor speed, with options for direct volume adjustment on the board or external command inputs. The driver includes inputs for start, brake, direction commands, and alarm reset. Outputs include speed pulses, fault signals, and direction indication.

Electrical Interface and Circuit Details

The document includes a detailed circuit diagram illustrating the power circuit, gain settings, motor drive IC, hall sensor connections, and F/V conversion. Key points include:

• Power voltage output is enabled only when jumper JP4 is shorted.
• Pads are provided for direct soldering of volume controls on the board.
• Input signals for start, brake, and direction commands are clearly defined.
• Output signals include pulse output for speed monitoring and fault output for alarms.

Environmental and Mechanical Considerations

• Designed for operation in moderate temperature and humidity conditions without condensation.
• Compact and lightweight design (55g) suitable for integration into various motor systems.

Summary: The BSD-36 series driver offers a cost-effective, flexible solution for brushless motor control with multiple speed setting options, integrated speed monitoring, and robust input/output signal handling. It supports various interface configurations and is adaptable for speeds beyond the standard 5,000 rpm limit through customization.