STEVAL-PCC010V2

Evaluation and demonstration boards and kits are designed to provide a platform for users to erect prototypes, make product comparison, test desired features and operation, and analyze product performance and reliability. STEVAL-PCC010V2 is an evaluation board that is based on a boost DC-DC converter with LLC resonant technology for offline applications. It meets international standards and is highly efficient and reliable. This section will provide an overview of the application fields and working principle of the STEVAL-PCC010V2 evaluation board.

Application Field
The versatile design of STEVAL-PCC010V2 can be used in applications that require the interconnection of a wide range of AC and DC voltages. It can supply various AC loads up to 280VA using a universal 94 to 264V AC input. In addition, it is suitable for providing wake up and low power source for various AC powered system such as energy management system, body control systems. It can also be used in home appliance power supplies, LED lighting system, air compressor control, medical equipment and many other offline applications.

Working Principle
The STEVAL-PCC010V2 is a LLC resonant DC to DC converter with a fixed frequency that operates at 150 kHz. The output voltage is adjustable between 10V and 50V by keeping the input voltage in the range from 70V to 265V. The efficiency of the converter is up to 96% at certain output powers. It consists of a power stage with a dedicated LLC resonant tank and a control stage with an STM32 MCU, which receives feedback signals from the primary circuitry and controls the switching of the converter accordingly.

The primary components of the STEVAL-PCC010V2 are a diode bridge, a power stage, an LLC resonant tank, a control IC and other related components. The diode bridge rectifies the input AC voltage. The bridge circuit supplies an input DC voltage to the LLC resonant tank, which generates an ac component that is used to drive the power stage switching devices. The power stage is further composed of two switching elements and two primary control windings. The switching elements turn the primary control windings on and off in a specific manner to control the output voltage. The output voltage is then used to supply the load.

The control IC senses the input and output voltage from the LLC resonant tank and the output voltage of the power stage, respectively. This sensed output is then compared to the desired output voltage of the system. In response to the comparison, the control IC adjusts the duty cycle of the switching elements to attain the required output voltage. The STEVAL-PCC010V2 evaluation board is thus able to control and adjust the output voltage and current based on the feedback from the primary circuit.

The STEVAL-PCC010V2 evaluation board is able to provide a wide range of high performance features for a wide range of AC and DC applications. It is provided with an STM32 MCU to control the switching of the power stage on the basis of the feedback from the primary circuit. The board is eligible for both short-circuit and over temperature protection. In addition, the board includes a synchronous rectification technique to reduce the input loss. This technique improves the system efficiency and reduces the power dissipation. Furthermore, the board automatically adjusts its output voltage to optimize the system performance.

In conclusion, STEVAL-PCC010V2 is a high efficiency DC-DC converter evaluation board based on LLC resonant technology for offline applications. Its features make it a suitable option for a variety of AC and DC applications, such as energy management systems, body control systems, home appliance power supplies, LED lighting systems, air compressor control, medical equipment, and many more. It has a universal 94 to 264V AC input and adjustable output voltage between 10V and 50V. STEVAL-PCC010V2 allows a synchronous rectification technique to reduce the input loss, and has a high efficiency of up to 96%. With short-circuit and over temperature protection, it is a suitable option for evaluating the performance of DC-DC converters and other related applications.