BD9C301FJ-EVK-001

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BD9C301FJ-EVK-001 is an evaluation kit for the BD9C301FJ, which is a high performance low power offline SMPS (switch mode power supply) controller with an integrated 120V t2 bridge rectifier, transconductance operational amplifier for voltage loop, and an embedded 8-bit microcontroller. It is suitable for a range of use, such as a power adapter for computers, game consoles, and other consumer electronics equipments. The components of the BD9C301FJ-EVK-001 are pre-installed on the board and configured with necessary external components for specific application.

This evaluation board is designed to provide a convenient way of the evaluation of the BD9C301FJ, evaluate its functions and features. It allows the user to evaluate the operational characteristics, such as the current mode control with linefeedback, switching frequency optimization and protection features against the over-voltage, under-voltage, over-CV, short-circuit, and over-temperature conditions. The design of this board enables the user to evaluate the BD9C301FJ in the lab environment without external components, and allows the user to program the operation and protection of the mode controller.

The application field of the BD9C301FJ-EVK-001 is for the evaluation of the BD9C301FJ low power offline SMPS (switch mode power supply) controller. This evaluation board is designed to provide a high performance, low power solution for various applications requiring an efficient and accurate power source. It can be used for applications such as computer power adapters, vending machines, medical equipment, LED lights, automatic instruments, etc.

The working principle behind the BD9C301FJ-EVK-001 can be summarized by the following steps:

• The AC line voltage is rectified by the integrated 120V t2 bridge rectifier to form DC voltage, and then filtered by the capacitor for smoothing.
• The controller turns on and off the power transistor in a cyclic pattern, which converts the fixed DC voltage into the desired output voltage and current.
• The feedback circuit measures the output voltage and compares it with the control settings in the microcontroller, and adjusts the switching frequency and duty cycle accordingly to maintain the desired output voltage.
• The main features of the BD9C301FJ-EVK-001 such as current mode control with linefeedback, switching frequency optimization and protection features against the over-voltage, under-voltage, over-CV, short-circuit, and over-temperature conditions are provided by the microcontroller.

It is important to note that the BD9C301FJ-EVK-001 can be used for a wide range of applications, such as computer power adapters, vending machines, medical equipment, LED lights, automatic instruments, etc. Furthermore, its built-in features provide enhanced protection and reliability for the system, which makes it suitable for low cost, low power and high efficiency applications.

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