16-bit Motor Control

Air conditioner (A/C) designs need to meet stringent energy efficiency ratings and power factor specifications to reduce overall power consumption. High energy efficiency is achieved by using an inverter-based variable speed drive for the brushless motor-based compressor and condenser fans. The variable speed drive and the sensorless field-oriented control (FOC) of brushless motors allow an appliance to operate at an optimal power setting compared to a fixed speed single phase AC induction motor (ACIM) drive. Power factor correction (PFC) is required for all high-power appliances to connect to the electrical grid.

Microchip’s Air Conditioner reference design, based on the dual core dsPIC33CH family of digital signal controllers, demonstrates efficient control of the condenser fan, compressor, PFC and the overall application logic implementation. The high-performance dsPIC33C DSCs (Dual core dsPIC33CH DSCs and Single core dsPIC33CK DSCs) offer the right set of peripherals that is ideal for dual motor control and enables replacing three controllers with one for a cost advantage in your design.

This reference design has proven power stages for high power PFC (220V, 1.8 KW), condenser fan (120 W) and compressor (1.34 KW) motor control. Additional features like temperature sensor interfaces, field communications and valve drives will enable you to develop on this platform for a wide variety of air conditioner systems like window A/Cs and the outdoor unit of split A/Cs.

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Benefits

• Single chip solution to optimize cost 

• Simplifies the development by enabling independent code development for the PFC and Dual motor control using the dual core dsPIC33CH DSCs 
  • Slave core implements dedicated time-critical dual motor control algorithms  
  • Master core implements Interleaved Boost PFC, system functions and other custom features 
• 3-phase motor control power stage for driving Low Power High Voltage BLDC/ PMSM motors

This plug-in module comes with a 48-pin dsPIC33CK64MP105 device. This PIM can be used to evaluate the dsPIC33CKxxMP1xx family of devices.  It can be used with Microchip's MCHV-2 [DM330023-2], MCHV-3 [DM330023-3], MCLV-2 [DM330021-2] and Low Voltage Motor Control Development Bundle [DV330100] and enables using the external OpAmps available on the MCLV-2, MCHV-2 and MCHV-3 boards.  This PIM is also supported on the Motor Control Stepper Motor (MCSM) Development Board [DM330022].

This plug-in module comes with a 48-pin dsPIC33CK64MP105 device. It can be used with Microchip's MCHV-2 [DM330023-2], MCHV-3 [DM330023-3], MCLV-2 [DM330021-2] and Low Voltage Motor Control Development Bundle [DV330100] and enables using the intrenal OpAmps available on the dsPIC33CK64MP105 device. This PIM can be used to evaluate the dsPIC33CKxxMP1xx family of devices.

The Microchip dsPICDEM™ MCHV-2 Development board aids the user in the rapid evaluation and development of a wide variety of motor control applications using a dsPIC® Digital Signal Controller (DSC). This development system is targeted to control Brushless DC (BLDC) motors, Permanent Magnet Synchronous Motors (PMSM), and AC Induction Motors (ACIM) in sensor or sensorless operation. This flexible and cost-effective tool can be configured in different ways for use with Microchip’s specialized motor control DSCs. The dsPICDEM™ MCHV-2 Development Board supports the dsPIC33F and dsPIC33E Motor Control device family and offers a mounting option to connect either a 28-pin SOIC device or a generic 100-pin Plug-In Module (PIM). The development board has a three-phase power module device that contains the motor inverter and the gate driver’s circuitry. The circuit drives a BLDC, PMSM, or ACIM motor using different control techniques without requiring any additional hardware. The MCHV-2 supports using either the internal opamps found on certain dsPIC33E products or the external opamps found on the MCHV-2 board for current sensing.

The rated continuous output current from the inverter is 6.5A (RMS). This allows up to approximately 2 kVA output when running from a 208V to 230V single-phase input voltage in a maximum 30ºC (85ºF) ambient temperature environment. Therefore, the development board is ideally suited for running a standard 3-Phase Induction Motor of up to 1.4 kW (1.8 HP) rating or a slightly higher rated industrial servo-motor. The power module is capable of driving other types of motors and electrical loads that do not exceed the maximum power limit and are predominantly inductive. Furthermore, single-phase loads can be driven using one or two of the inverter outputs. The unit is capable of operating from 90V up to a maximum of 265V.

The MCHV-2(DM330023-2) replaces the previous MCHV (DM330023) and is fully backwards compatible with the previous MCHV(DM330023) and all motor control PIMs.

The Microchip dsPICDEM™ MCHV-3 Development Board aids the user in the rapid evaluation and development of a wide variety of motor control applications using a dsPIC® Digital Signal Controller (DSC). This development board is targeted to control Brushless DC (BLDC) motors, Permanent Magnet Synchronous Motors (PMSM), and AC Induction Motors (ACIM) in sensor or sensorless operation. This flexible and cost-effective tool can be configured in different ways for use with Microchip’s specialized motor control DSCs. The dsPICDEM™ MCHV-3 Development Board supports the dsPIC33F and dsPIC33E Motor Control device family and offers a mounting option to connect either a 28-pin SOIC device or a generic 100-pin Plug-In Module (PIM). The development board has a three-phase power module device that contains the motor inverter and the gate driver’s circuitry. The circuit drives a BLDC, PMSM, or ACIM motor using different control techniques without requiring any additional hardware. The MCHV-2 supports using either the internal opamps found on certain dsPIC33E products or the external opamps found on the MCHV-3 board for current sensing. It also has Power Factor Correction (PFC) circuitry to meet power regulatory requirements.

The rated continuous output current from the inverter is 6.5A (RMS). This allows up to approximately 2 kVA output when running from a 208V to 230V single-phase input voltage in a maximum 30ºC (85ºF) ambient temperature environment. Therefore, the development board is ideally suited for running a standard 3-Phase Induction Motor of up to 1.4 kW (1.8 HP) rating or a slightly higher rated industrial servo-motor. The power module is capable of driving other types of motors and electrical loads that do not exceed the maximum power limit and are predominantly inductive. Furthermore, single-phase loads can be driven using one or two of the inverter outputs. The unit is capable of operating from 90V up to a maximum of 265V.

The MCHV-3(DM330023-3) complements the previous MCHV-2 (DM330023-2) and is fully backwards compatible with the previous MCHV-2(DM330023-2) and all motor control PIMs.

The dsPICDEM™ MCLV-2 Development Board provides a cost-effective method of evaluating and developing sensored or sensorless Brushless DC (BLDC) and permanent magnet synchronous motor control applications. The board supports Microchip’s 100-pin Plug-In-Modules with dsPIC33E, dsPIC33F and PIC32MK Digital Signal Controllers. The board supports the use of the internal, on chip OpAmps found on certain dsPIC® devices or the external OpAmps found on the MCLV-2 board. A dsPIC33EP256MC506 Internal OpAmp PIM (MA330031) is included. The board is capable of controlling motors rated up to 48V and 15A, with multiple communication channels such as USB, CAN, LIN and RS-232.

The dsPICDEM™ MCLV-2 Development Board is targeted to control a Brushless DC (BLDC) motor or Permanent Magnet Synchronous Motor (PMSM) in sensor or sensorless operation. This flexible and cost-effective board can be configured in different ways for use with Microchip’s specialized motor control digital signal controllers. The dsPICDEM™ MCLV-2 Development Board supports the dsPIC33E, dsPIC33F and PIC32MK motor control device families, as well as recently added support for the ATSAME70 family of ARM Cortex M7 microcontrollers. It offers a mounting option to connect a generic 100-pin Plug-In Module (PIM).

 

Click Here for more information on the PIC32MK 32-Bit Motor Control PIM - MA320024

Click Here for more information on the SAME70 32-Bit Motor Control PIM - MA320203

The MCLV-2(DM330021-2) replaces the previous MCLV (DM330021) and is fully backwards compatible with the previous MCLV(DM330021) and all motor control PIMs

Even though most high voltage (110Vac/220Vac) 3-phase motor control applications are high power (>1kW) there are many applications that are low power (<500W). In those cases running on a high power system is not very efficient.  To better demonstrate the capabilities in regards to efficiency in low power high voltage motor control we have developed this reference design (limited to 150W). This compact and cost-effective high voltage board is targeted to control various high voltage motors such as Brushless DC (BLDC) motors, Permanent Magnet Synchronous Motors (PMSM) and AC Induction Motors (ACIM) in sensored or sensorless operation.

Do you want a demonstration?

Please contact local sales office in your geography to request a demonstration.
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The Low Voltage Motor Control Development Bundle provides a cost-effective method of evaluating and developing dual/single motor control power stage targeted to drive two Brushless DC (BLDC) motors or Permanent Magnet Synchronous Motors (PMSM) concurrently. The bundle comes with a dsPIC DSC Signal board, Motor Control 10-24V Driver Board and dsPIC33EP512GM710 Dual Motor Control PIM.

The dsPIC (DSC) Signal Board supports both 3.3V and 5V operated devices for various applications and frequently used human interface features along with the communication ports. The Signal Board has two major connectors, a 120-pin connector and a 60-pin connector to enable connection to the plug-in boards.

The Motor Control 10V–24V Driver Board (Dual/Single) along with the compatible dsPIC DSC Signal Board provides a software development platform to build and evaluate embedded motor control application software using Microchip’s high performance motor control Digital Signal Controllers (DSCs) and Microcontrollers (MCUs).