![]() ![]() The compact LaunchXL-F28027F LaunchPad includes a C2000 Piccolo MCU featuring a 13-channel, 12-bit ADC with a sampling frequency of 4.6MHz and four high-resolution PWM modules (pulse-width modulation). The LaunchPad can also be used for more powerful motors to make an informed decision whether the sensorless FOC approach is suitable for the application, enabling designers to use it for an initial evaluation, while evaluation modules are available for subsequent development work, especially in high-voltage applications. Additional applications include e-bikes and motors used for model making. Such drives are used in pumps and ventilators for medical applications and vehicles. The InstaSPIN-FOC LaunchPad enables the design of control solutions for three-phase AC motors operated at voltages of 6-24V and currents of 0-10A. For this purpose, TI has combined InstaSPIN-FOC with the FAST (Flux – Angle – Speed – Torque) software sensor and the C2000 Piccolo microcontrollers (MCUs). The InstaSPIN-FOC technology developed by Texas Instruments intends to minimise the disadvantages of the sensorless approach. Sensors and observers result in additional costs and an increased error rate. This is necessary for exerting the maximum torque by generating a suitable magnetic field in the stator. FOC relies on a mechanical or software-based sensor (observer) to precisely determine the rotor position. ![]() ![]() Among the disadvantages of the FOC approach is the requirement for a position sensor.
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