Microchip Technology AC300024 数据表

Motor Control Design Solutions

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  Large family of code and pin-compatible Flash devices

 

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 The dsPIC30F device family offers 5V or 3.3V

  operation and are available in 28, 40, 64 and 80-pin
 packages 

 

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 The dsPIC33F device family provides 3.3V operation

  and are available in 20, 28, 44, 64, 80 and 100-pin
 packages

 

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 Easy to migrate between family members

 

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 Facilitates low-end to high-end product strategy

 

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 Flash program memory for faster development

  cycles and lower inventory cost

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  High Speed 16-bit CPU with Complier-efficient 

architecture

 

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 40 MIPS operation dsPIC33F (30 MIPS operation on

 dsPIC30F)

 

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 Modified Harvard architecture for simultaneous data

  and program access

 

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 16 x 16-bit general purpose registers for efficient

 software 

operations

 

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 Optimized for C code by design with industry-leading

 efficiency

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  Built-in DSP engine enables high speed and precision 

PID control loops

 

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 Full featured DSP engine with two 40-bit 

  accumulators for multi-loop PID control

 

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 Dual data fetches for single-cycle MAC instruction

 support

 

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 Hardware barrel shifter and single-cycle multiplier

 

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 Saturation support, rounding modes, circular buffer

  and modulo addressing modes for shorter control
 loops

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  Direct-Memory Access (DMA) (many dsPIC33F devices)

 

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 Peripherals automatically store/retrieve data from

  RAM without stealing cycles from the CPU

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  Single supply voltage rails eliminate extra voltage 

regulator circuits

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  Precision High Speed Internal Oscillator eliminate 

external crystal

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  Comprehensive System Integration Features

 

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 Up to 4 Kbytes of Data EEPROM (dsPIC30F) for

  non-volatile data storage

 

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 High current sink/source I/O pins: 25 mA/25 mA

  (dsPIC30F), 4 mA/4 mA (dsPIC33F)

 

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 Flexible Watchdog Timer (WDT) with on-chip

  low-power RC oscillator for reliable operation

 

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 Power-on Reset (POR), Power-up Timer (PWRT) and

  Oscillator Start-up Timer (OST)

Microchip’s 16-bit dsPIC Digital Signal Controllers (DSC’s) 
provide on-chip peripherals to design high-performance, 
precision motor control systems that are more energy 
efficient, quieter in operation, have greater range and an 
extended life.

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  Motor Control PWM Module (MCPWM)

 

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 Dedicated time base with up to 8 PWM outputs

 

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 Up to 4 complementary pairs for 3-phase control

 

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 Independent output mode for BLDC Control

 

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 Edge and Center-aligned Modes for quieter operation

 

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 Programmable Dead-Time Insertion with separate

  turn-on and turn-off times

 

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 Programmable A/D trigger for precise sample timing

 

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 Up to 2 fault inputs to shutdown PWMs

 

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 Multiple time bases (i.e., supports motor control and

 PFC)

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  High-speed analog-to-digital converter (ADC)

 

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 Up to 16 channels, 10-bit resolution, 1.1 Msps (1 μs)

  high speed conversion rate

 

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 Up to 4 sample and hold circuits for simultaneous

  sampling capability for all 3 phases

 

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 Flexible sampling and conversion modes with 16 result

 registers

 

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 Monotonic with no missing codes

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  Up to 2 Quadrature Encoder Interfaces (QEI) for shaft 

encoder inputs

 

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 Programmable digital noise filters on input pins for

  robustness against noise

 

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 Full encoder interface support: A, B, Index and Up/Down

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  Up to 2 Comparators

 

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 20 ns response time for rapid response

 

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 Programmable voltage reference

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  12-bit A/D converter (up to 0.5 Msps operation)

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  Up to eight Input Capture, Output Compare, Standard

PWM channels

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  Communication peripherals including UART, SPI, I

2

C™ 

and CAN

 

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 Fail-Safe clock monitor operation detects clock failure

  and switches to on-chip low power RC oscillator

 

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 Programmable code protection

 

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 In-Circuit Serial Programming™ (ICSP™)

 

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 Selectable Power-Saving modes – Sleep, Idle and

  Alternate Clock modes; Doze mode (dsPIC33F)

 

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 Programmable Low-Voltage Detection (PLVD) (dsPIC30F)

 

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 Programmable Brown-out Reset (BOR)

 

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 Industrial and extended temperature ranges

 

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 Codeguard™ Security helps eliminate loss of IP

Advanced Motor Control often does not require DSP but benefi ts greatly from the DSP resources found on the dsPIC® 
Digital Signal Controllers (DSCs). For example, our sensorless fi eld-oriented control algorithm makes use of the single 
cycle MAC with data saturation, zero overhead looping and barrel shifting to achieve stunning performance.