DF2145BTE20V

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DF2145BTE20V Application Field and Working Principle

The DF2145BTE20V is a single-phase bidirectional monolithic circuit developed by HY Electronic Taiwan Co., Ltd. This circuit is specifically designed for grid interactive battery storage applications and is capable of controlling the power flow between the battery and the utility grid, thus providing a reliable platform for safe and efficient energy storage and delivery. This device includes two MOSFETs for a four-quadrant power flow control and is suitable for both DC and AC-coupled systems in commercial and residential applications.

The DF2145BTE20V features a maximum input voltage of 600V, a nominal constant DC link voltage of 400V, an operating temperature range of -40°C to +85°C, and a power range up to 3500W. The device has protection features such as over-temperature protection, undervoltage protection, overcurrent, and overvoltage protection. The device also has built-in frequency modulation functions and various system parameters can be set through its embedded configuration.

The device is embedded with 8-bit microcontrollers so it can independently control each multiple-jet power module, supporting the function of LED display, which can reduce the total cost of the end-product. The DF2145BTE20V supports a fast switching speed, which ensures accurate and reliable response to the load current. It alsohas excellent EMI characteristics, making it ideal for use in environments with strict EMI regulations. The device is equipped with active or passive communications such as CAN Bus and ModBus.

The device operates according to a simple bidirectional speed controlling principle. It is composed of two independent power components that run in opposite directions. Each component is independently controlled by its own power module.When one component is charging, it controls the voltage at its source as a reference. This time, the other component is in the discharging mode and its voltage is controlled as the reference. Thus, the energy transferred between the two components can be controlled.

The DF2145BTE20V offers both disconnection and synchronization capabilities. When the energy is greater than the rated power, the circuit can be turned off by using disconnection mode, which ensures that no further power is generated or transferred. When the power is lower than the rated power, the circuit can be synchronized by using the synchronization mode. In this way, the output power can be used to match the grid frequency.

In conclusion, the DF2145BTE20V is an ideal device for grid interactive battery storage applications. Its embedded 8-bit microcontrollers, frequency modulation functions, and over-temperature protection features provide users with a reliable and cost-effective energy storage and delivery platform. With its bidirectional speed controlling principle, users can control the power flow between the battery and the utility grid with accuracy and reliability. The device also offers both disconnection and synchronization capabilities, which ensure that the output power is used safely and efficiently.

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