High-Precision Peltier Cooler System

The Peltier cooler is a device for heating and cooling that utilizes the Peltier effect, where heat is transferred by the flow of current between two different metals. It is widely used across industries such as food preservation, chemical processing, optics, and medical devices. The ability to easily switch between heating and cooling by reversing current, without any moving parts, eliminates noise and vibration, making it ideal for industrial environments that require stability, precision, and accurate temperature control.

This Peltier cooler system is driven by a 32-bit MCU with an integrated 24-bit delta-sigma analog-to-digital converter (ADC), offering the precision needed to control the Peltier cooler in real time. This integration reduces the overall BOM cost and board space by eliminating the need for an external ADC while maintaining high-precision temperature control. Additionally, the system's support for various industrial interfaces allows for easy integration into existing industrial networks, making it adaptable for applications requiring precise temperature regulation.

System Benefits​:

• Integrated high-precision analog front-end (AFE) on a single chip ensures accurate temperature measurement and control, eliminating the need for an external AFE, thus reducing BOM costs and board space.
• High-performance RX v2 core with a floating point unit (FPU) speeds up filtering and proportional-integral-derivative (PID) control operations, enabling faster and more efficient temperature adjustments.
• Complementary pulse width modulation (PWM) output for H-bridge driver control enables high power-efficient control of the Peltier cooler, optimizing energy consumption for both heating and cooling.
• The system supports various interfaces such as CAN, RS-485, and I²C, enabling seamless integration into most industrial networks and providing flexibility for a wide range of applications.