NCP1201D60R2

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NCP1201D60R2 application field and working principle

The NCP1201D60R2 is a member of a family of monolithic integrated circuits designed for creating switch mode power supplies (SMPS) or off-line converters. This type of power supply is designed to control the operational output power of electric and electronic appliances using a step-down AC-DC converter. Understanding the application fields and working principles of NCP1201D60R2 will provide users with the ability to create their own cost effective AC-DC converter.

Application Fields

The NCP1201D60R2 switching regulator is a cost effective solution for low power AC-DC offline converters in applications ranging from 10 to 60 watts. Commonly used in discontinued mode, it is suitable for use in various power-lining applications, such as in home appliances (small fans and kitchen appliances) as well as in office equipment, telecommunications and light-duty industrial applications. Other application fields include portable electronics (mobile phones, laptops, tablets, and digital cameras) and battery charging where the low-noise switching characteristics of the device make it a desirable choice.

The NCP1201D60R2 is a high performance, off-line switching regulator built with our proprietary CMOS process. Our device\'s high reliability and maximum efficiency allow it to easily overtake conventional linear solutions and deliver optimal performance, preserving battery life and reducing noise in audio/video products.

Working Principle

The NCP1201D60R2 off-line switching regulator consists of an integrated control, switches and a transformer. The integrated regulators draw a certain current and use it to control the power output. When the external AC voltage is applied, the NCP1201D60R2 rectifies the AC voltage and converts it into DC voltage. The output from the rectifier is then used to charge an energy-storage capacitor, which is then used as the input for the integrated regulator.

The internal regulator uses the stored energy to control the switching rate of the system. The switching rate determines the power output and operational parameters of the regulator. An internal reference voltage (REF) is used to determine the switching rate; when the feedback voltage (FB) reaches the value of the reference voltage, the regulator switches off and shuts down. This results in a reduction in the output power during the shutdown period.

The NCP1201D60R2 switch mode power supply can be used with a wide variety of components, such as a full-bridge rectifier, filter capacitors, barrier diodes and an aluminium electrolytic. The transformer helps to control the current and voltage between the secondary and primary windings, while the rectifier diodes prevent any inductive spikes from reaching the output.

Conclusion

The NCP1201D60R2 switching regulator is a cost effective solution for low power AC-DC offline converters. It can be used in a wide variety of applications, such as in home appliances, office equipment, telecommunications, portable electronics, and light-duty industrial applications. The integrated regulators draw a certain current and use it to control the power output. An internal reference voltage is used to determine the switching rate while the transformer helps to control the current and voltage between the secondary and primary windings. Understanding the application fields and working principles of NCP1201D60R2 will provide users with the ability to create their own cost effective AC-DC converter.

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