A query transpires here that, what’s so exceptional about the new-fangled LPC family? First, the LPC1500 was designed to simplify motor control for the masses. It has the flexibility to drive various types of motors, such as ACIM, PMSM, BLDC, etc. The LPC1500 can also drive multiple motors concurrently.
Additionally, the hardware interconnection sandwiched between the SCTimer/PWM, ADCs and comparators lets the motor to be driven with little CPU intervention. It has free LPCXpresso IDE and free FOC firmware for sensored and sensorless motors that reduces cost and recovers time to market.
Zeroing unto the exclusive features and benefits at the offing, the Switch Matrix permits any function to be routed out to any pin making schematic capture and board layout simpler and faster. The SCTimer/PWM block is unique to NXP.
Acmes here are, it can run independently of the CPU and generate extremely precise PWM waveforms for a quiet, smooth, efficient motor drive. The 2x 2Msps 12b, 12ch ADCs can measure simultaneous phase currents to be able to determine specific motor position and speed. There stand four comparators for fast system shutdown upon fault detection.
The LPC1500 is appropriate for large appliances, HVAC, building automation, factory automation, industrial pumps and generators, digital power, remote sensing, etc.
One can even go on to pose the query that as to how will the LPC1500 help embedded engineers? As stated by NXP, it saves time to market using the free FOC firmware and GUI tuning tool. It correspondingly saves system cost by using only one system MCU, e.g., HVAC typically has one MCU for fan control and one MCU for the compressor. LPC1500 can control both.
The LPC1500 feature set makes it ideal for sensorless motor control removing the need for sensored motors and allowing customers to switch to cheaper sensorless motors. As the SCTimer/PWM can run independently of the CPU, the freed up CPU bandwidth can be used to control other parts of the system for instance the LPC1500 can be used for both the control and motor board in a washing machine.
NXP is at present working with customers to comprehend their future requirements and developing the roadmap to match their needs.