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KM1M7BF 逆变器控制系列
The KM1M7BF series, ideal for controlling power electronics, is a 32-bit Flash microcontroller featuring both high processing power and low power consumption, and incorporating the Arm® Cortex®-M7.
The device is equipped with a high-function PWM, high-speed, high-precision AD converter, and feedback control assist function, ideal for inverter control of brushless DC motors, and contributes to power electronics products that require high efficiency, low heat generation, and miniaturization.
Block Diagram
Outline Specifications
|
•Built-in Arm® Cortex ® -M7 core |
•12-bit A/D converter | |
|
Single- and double-precision FPUs |
Minimum conversion time 0.5μs (2.0Msps) |
|
|
•Clock frequency: 160 MHz |
3 units, 32 channels | |
|
•Internal memory |
•Variable Gain Amplifier (VGA) |
|
|
Instruction Flash ROM: 512 KB |
5 units |
|
|
Flash ROM for data: 64 KB |
•Comparator: 5 units | |
|
Instruction RAM: 64 KB |
Window/2 level/1 levell switchable |
|
|
RAM for data: 64 KB |
•Functional Safety | |
|
•DMA Controller: 2 units / 16 channels |
ROM/RAM ECC function | |
|
•Timer |
Memory data protection function |
|
|
General-purpose 16-bit timer: 20 channels |
Register access protect function |
|
|
PWM for power control: 12 units / 24 channels |
Clock monitor function |
|
|
•Communication |
Window type WDT function |
|
|
Synchronous/IIC: 1 channel |
CRC operation function |
|
|
Synchronous/UART: 2 channels |
A/D converter Diagnostic function |
|
|
Synchronous/UART/LIN: 1 channel |
Supply voltage detection function |
|
|
Synchronous/UART/SPI: 3 channels |
Power-on reset function |
|
|
Synchronous/UART/data share: 1 channel |
•Power supply voltage: 5V single power supply |
|
|
SM-Bus: 1 channel |
•Operating temperature: Tc= -40 to 110°C |
Reference Board
|
Solution |
Target |
Input Power |
Structure |
Deliverables |
Status |
|
|
Low voltage motor EVA board |
 |
Air purifiers Power tools One axis slider |
134W |
BLDC motor x 1 |
Hard Ref Soft IP |
Available |
|
High voltage motor EVA board |
 |
Air conditioner (Compressor and Fan) Washing machine Refrigerator |
2kW |
BLDC motor x 2 Single phase PFC |
Hard Ref Soft IP |
Available |
|
3-phase interleaved PFC EVA board |
 |
Air conditioner Heat Pump |
3.5kW |
BLDC motor x 2 3-phase PFC |
Hard Ref Soft IP |
Available |
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