Key facts
- Brand
- MICROCHIP
- Model
- AN901
- Documents
- 2
- Languages
- ZH
- Last added
- 2000-01-01
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Microchip AN901 Application Note
The note describes a fully functional, highly flexible software application that uses a dsPIC30F to control sensor‑less brushless DC (BLDC) motors. It targets fan and pump applications and provides adjustable parameters, two start‑up methods, and the ability to restart without stopping the motor.
Hardware requirements, source‑code organization, and user‑interface details are covered, along with instructions for modifying the development board and power module to obtain the necessary feedback signals. The document also lists the peripheral resources used on the dsPIC30F and the steps for programming and debugging with MPLAB tools. This manual is written in Chinese.
MICROCHIP AN901 specifications
| Program storage size | 15,594 bytes |
|---|---|
| Data memory usage | 276 bytes |
| CPU speed requirement | 7.38 MIPS |
| ADC resolution | 10‑bit |
| PWM carrier frequency | 16 kHz |
Source: Microchip AN901 Application Note
All MICROCHIP AN901 documents by type
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
How many configurable parameters does the application provide?
The software defines a total of 45 parameters that can be adjusted via the LCD user interface.
What is the maximum reliable output frequency for the sensor‑less system?
The sensor‑less system can reliably operate up to about 150 Hz, or up to 250 Hz when phase‑advance is used.