FAN302HL 5 volt switching power supply circuit design electronic project

A simple 5-volt switching power supply electronic circuit project can be designed using the FAN302HL, a highly integrated PWM controller integrated circuit. This IC provides several features that enhance the performance of general flyback converters. The constant-current control of the FAN302HL's proprietary topology enables simplified circuit designs without the need for secondary feedback circuitry in battery charger applications. This 5-volt switching power supply accepts a wide input voltage range from 90 to 265 VAC and delivers a regulated output of 5 volts at a maximum output current of 1.2 amperes. Additionally, this controller includes various protection features such as VDD Over-Voltage Protection (Auto-Restart), VS Over-Voltage Protection (Latch Mode), and Fixed Over-Temperature Protection.

The circuit utilizes the FAN302HL PWM controller, which is designed specifically for flyback converter applications. The integrated circuit's architecture allows for efficient power conversion, making it suitable for various applications, including battery chargers and low-power supplies. The input voltage range of 90 to 265 VAC makes the circuit versatile, capable of operating in different geographical regions with varying mains voltages.

The output voltage regulation is achieved through the PWM control mechanism, which adjusts the duty cycle of the switching transistor to maintain a stable 5-volt output. The maximum output current of 1.2 amperes ensures that the circuit can adequately supply power to connected devices without significant voltage drop or instability.

Protection features incorporated into the design enhance the reliability and safety of the power supply. The VDD Over-Voltage Protection (Auto-Restart) feature ensures that if the voltage at the VDD pin exceeds a predefined threshold, the controller will automatically restart once the fault condition is removed. The VS Over-Voltage Protection (Latch Mode) prevents the output voltage from exceeding safe limits by latching the circuit in a shutdown mode until it is manually reset. The Fixed Over-Temperature Protection feature safeguards the circuit from overheating, thereby prolonging the lifespan of the components and ensuring safe operation.

Overall, this 5-volt switching power supply circuit utilizing the FAN302HL is efficient, reliable, and well-suited for a variety of applications requiring stable low-voltage power.A very simple 5 volt switching power supply electronic circuit project can be designed using FAN302HL highly integrated PWM controller integrated circuit, that provides several features to enhance the performance of general flyback converters. The constant-current control, of the FAN302HL proprietary topology enables simplified circuit designs wit

hout secondary feedback circuitry for battery charger applications. This 5 volt switching power supply electronic circuit project accepts a wide range input voltage from 90 to 265 VAC and will provide a 5 volt regulated output at a maximum output current of 1. 2 ampere. This controller also provides several like protections : VDD Over-Voltage Protection (Auto-Restart), VS Over-Voltage Protection (Latch Mode), Fixed Over-Temperature Protection.

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