NCP1201P100G

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The NCP1201P100G is a part of the high-performance medium voltage, off-line switcher primarily intended for switch mode power supplies, offline converters and DC-to-DC converters operating in either continuous or discontinuous conduction modes. It has a fast turn-on time of 10 μs, which makes it suitable for both high-current and low-current applications. It provides a low-cost solution for developing robust, reliable and efficient solutions.

Application Field

The NCP1201P100G can be used in a variety of applications, including SMPS and DC-DC converters for lighting, power supplies for home appliances, office automation, and industrial control. It is designed to provide high-efficiency and robust operation in both AC or DC input schemes. It is a non-isolated converter, with a single stage conversion from AC or DC inputs to an adjustable DC output. The primary application field of the NCP1201P100G is the offline switcher which is the popular solution for a wide range of power supply solutions and LED lighting solutions.

Working Principle

The NCP1201P100G uses a buck-boost topology that is based on two main parts: the inverter bridge and the power transformer. The inverter bridge rectifies AC input power, providing DC power as an input to the power transformer. The power transformer then converts this DC power to an adjustable output voltage. Additionally, the NCP1201P100G includes a range of integrated features, such as over-current protection and under-voltage lockout, which can be used to protect the system from damage.

The NCP1201P100G uses a synchronous rectification technology, which enhances efficiency by minimising power losses. It also has over-voltage protection, enabling it to operate in a wide range of operating conditions. Additionally, the NCP1201P100G features a pre-bias start-up circuit, which provides extra soft-start at low-voltage. Finally, it has an integrated Voltage Mode Control loop which uses the input voltage as a reference, enabling it to adjust the output voltage accordingly.

In summary, the NCP1201P100G is a medium voltage, off-line switcher providing a low-cost, efficient solution for switch mode power supplies and DC-to-DC converters. It is suitable for a wide range of applications, with its fast turn-on time, integrated features, and pre-bias start-up circuit making it a robust, reliable and efficient solution.

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