BM2P013

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PMIC - AC DC Converters, Offline Switchers have been around for decades, powering everything from medical equipment and electronic circuitry to industrial machines. The BM2P013 is one such network of multiple parts and components, or an Integrated Circuit (IC), that converts AC power to DC power and facilitates switching. In this paper, the application fields of BM2P013, as well as its working principle and construction, will be discussed in detail.

The BM2P013 can be used in a variety of applications, including power supply system of communication equipment, intelligent power matrices, automotive applications and laptop adapters. In communication application, the IC\'s rectifier bridge and power FETs convert AC input voltage to DC voltage to power up the paired generating systems and radio transceivers. In intelligent power matrix and automotive applications, the power IC can be used as a DC/DC converter, and its synchronous rectifier topology helps to improve the switching and regulation efficiency.

The BM2P013 is composed of an embedded rectifier bridge, a driver for the power FETs, an integrated overvoltage protection circuit and a number of support and control components. An external bootstrap capacitor is necessary for this application to latch the boost voltage and enable the power FETs. The DCM mode is conducted by the soft switching control. When the AC/DC converter is operating in CCM mode, the power FETs are driven by the integrated gate driver, and their conduction is controlled by the externally-provided control signals. The current sensing network is comprised of the connecting resistors or by the Hall-effect sensor. The voltage output of the converter is regulated and adjusted by the external feedback circuitry.

The working principle of BM2P013 AC/DC converter is divided into two stages. The first stage is the rectification stage, where the AC input voltage is rectified and the bridge rectification is conducted by the rectifier bridge. The rectified voltage is filtered, and the DC output is then provided. The second stage is the DC/DC converter stage, where the DC voltage is converted to a fixed and regulated voltage by the power FETs, with the help of a current sensing network and external feedback circuitry.

The synchronous rectifier Vcc control is implemented by the external control of power FETs. A clock divider circuit is utilized to provide the PWM timing signals to clock the main FETs. The voltage feedback circuit adjusts the output voltage according to the output demands, and the current sensing circuit ensures that the power consumption and current readings are accurate.

In conclusion, the BM2P013 Integrated Circuit is a useful and efficient AC/DC converter that can be utilized in a variety of applications. Its synchronous rectifier topology allows for improved switching and regulation efficiency, and its embedded rectifier bridge, power FETs and current sensing network provides accuracy and precision power readings. The BM2P013 works based on two stages of operation, with the rectification stage converting AC voltage to DC voltage, and the DC/DC converter stage converting the DC voltage to a fixed and regulated voltage. With the implementation of its external control methods, the BM2P013 can be a reliable and cost-effective solution for AC to DC conversion in many applications.

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