 Would you like to optimize your motor-based product to save energy consumption and enhance robustness, while at the same time saving on bomb costs? Well, look no further! Let me tell you about our unique algorithm capable of attaining sensor-like performances, but without any sensors. Now, sensorless field-oriented control, or FOC, offers benefits both in cost and quality, while removing sensors and wiring. Two FOC algorithms are available right now, the one based on the Lundberger State Observer introduced in 2008 and our newly developed one, which combines what we call the S High Sensivity Observer, or HASO, and the STM32 Zest. They provide improvements at low speed and even at zero speed, while still deploying full torque. In fact, this is a very innovative way to start the motor at full torque, which is a significant challenge, and all of this without any sensors. Now, let's have a look at the two demonstrations that we have here. Both are showing the control of a motor in different conditions. Here is a low-power brushless DC motor running on HASO, and you can see that the startup time is really short. Also, switching direction is loud. The second demonstration enables a comparison of several motor control algorithms under braking conditions. Braking is performed by another brushless DC motor, and the UI enables you to apply a resistive torque to the motor and the test. You can choose the algorithms you want to benchmark, to make comparison on current consumption, startup time, and even recovery after mechanical stall. In our demo, the HASO and Zest algorithms are running on the STM32 G4 and need around 70 kilobytes to run, as well as a minimum of two independent ADC and a floating point unit, that all of this are native to the Codex M4, which means cost-wise, this is great for your next motor control application. Now, I'd like to give you more insight on what we've developed. So, when controlling a synchronous motor in FOC, sensors may typically be used to determine the position of the rotor to improve efficiency. However, dedicated software called Observer algorithms can estimate the position through computation, which then enables us to go sensorless. Now, although these observers work well at high speed, they do struggle at low and zero speed. This is why we decided to develop the High Sensivity Observer and the STM32 Zest, to bring the first sensorless solution, which allows control at zero speed, while still maintaining full torque. Perfect for a flying start! The High Sensivity Observer improves sensorless control by reaching ever lower speeds and even switching direction. You can also add the STM32 Zest on top of the HAso, which is the first solution capable of providing full torque at zero speed for any kind of synchronous motor. Both the STM32 Zest and HAso are pure software algorithms, which means that no additional active components are required, and they run on a simple MCU such as the STM32 G4. Meaning, you are reducing bomb costs and increasing the robustness of the PCB. For more information, check out our STM32 Zest page.