BCD48BF240T300A00

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The BCD48BF240T300A00 is a evaluation board of DC/DC & AC/DC (Off-Line) SMPS. It is a complete AC/DC system in a single integrated module. Its applications include power integrated circuits (PICs), communications systems, computers and consumer electronics.

The board consists of an AC/DC power supply IC with EMI filter, an AC/AC transformer, and an AC/DC converter IC. The board also includes a closed-loop control system, an opto-coupler, and a disconnect switch. The power output can be regulated using an external potentiometer or via a pulse-width-modulated (PWM) signal.

The BCD48BF240T300A00 utilizes a transformer-based, non-resonant power conversion topology called a quasi-resonant (QR) converter, which provides high efficiency across a wide input voltage range and a wide range of output powers. The board is designed to achieve low EMI through a multi-layer EMI filter.

The mode of operation of the BCD48BF240T300A00 is based on a voltage mode control technique where the output voltage is regulated by modulating the peak main switch-on time of the QR converter. A high-voltage P-Channel MOSFET switch is used to control the charging current to a multiplier capacitor, and a comparator is used to sense the input voltage. The control IC is designed to set the voltage level at the multiplier capacitor by use of a PWM signal. This ensures that the output voltage is adjusted in response to changes in output power demands.

The BCD48BF240T300A00 offers a wide operating temperature range and is capable of delivering high output power at high efficiency. Its low component count and low EMI minimize the design complexity and installation time. The board features a soft start circuit that prevents inrush current and protects against over-current protection. Its advanced protection circuitry offers short-circuit and over-voltage protection. In addition, the BCD48BF240T300A00 features adjustable output current limit, over temperature protection, and thermal shut down.

The BCD48BF240T300A00 is a compact, easy-to-use, and cost-effective evaluation board for the evaluation and development of designs for DC/DC & AC/DC (Off-Line) SMPS. It offers a flexible and robust solution for power conversion applications.