P9025AC-R-EVK

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The P9025AC-R-EVK evaluation and demonstration board is a combination of high-efficiency DC/DC converter, consisting of a highly integrated DC power IC, low-loss inductors and passive components. Its main components are the TDK P9025A Switching Power Supply IC and TDK low-loss B8865SH series inductors. It is designed to provide versatile power conversion applications.

The P9025AC-R-EVK evaluation board is a typical common-mode topology flyback converter. The converter has programmable output voltage and adjustable PWM frequency. It can generate power from a wide range of DC input voltage, such as 3.3V, 4.2V, 5V, 9V, 12V, and 15V. The board supports output voltage up to 1.6A. It can be used to assess efficiency and other performance parameters of the power converter.

The fundamental working principle of the P9025AC-R-EVK board is based on flyback converter topology. The P9025A is expressed as a synchronous switch with an integrated high-side and low-side driver. The input DC voltage is regulated by the PWM signal generated by the control circuit and connected to the gate of the switch. When the switch is closed, magnetic energy is stored in the primary leakage inductor. After the switch is opened, the stored energy is released to the secondary winding. This energy is then rectified by the output diode and sent to the output.

The P9025AC-R-EVK evaluation board is widely applied in battery-powered applications, such as portable devices and wireless communication. It is suitable for applications with wide input voltage range and high efficiency requirements, as the efficiency of the power converter can reach up to 98%. It can even be used for applications with multiple power inputs, such as USB chargers.

In addition, the P9025AC-R-EVK board also features over-voltage protection, over-current protection, and short-circuit protection to increase system reliability in harsh environments. Furthermore, the board features a simple control circuit which is able to regulate output voltage and adjust PWM frequency.

In conclusion, the P9025AC-R-EVK evaluation and demonstration board is a combination of high-efficiency DC/DC converter. It is widely used in battery-powered applications such as portable devices and wireless communication. It has excellent features, such as the ability to generate power from a wide range of DC input voltage, over-voltage protection, over-current protection, and short-circuit protection. With a simple control circuit, the board can regulate output voltage and adjust PWM frequency. Thus, it is suitable for applications with high efficiency requirements.

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