Cell phone charger using FSEZ1307 controller
The FSEZ1307 is a third-generation primary side regulation (PSR) PWM controller integrated circuit . The FEZ1307, provides several features to enhance the performance of low-power flyback converters.
The FEZ1307 can be used for battery chargers applications for devices like : cellular phones , cordless phones , PDA , digital cameras or for replacement of linear transformers and RCC SMPS .
The FEZ1307 is designed to work using few external components offering many other features like : low standby power: under 30mW , high-voltage startup , constant-voltage (CV) and constant-current (CC) control without secondary-feedback circuitry , fixed PWM frequency at 50kHz with frequency hopping to solve EMI problem , cable compensation in CV mode , peak-current-mode control in CV mode , cycle-by-cycle current limiting , VDD over-voltage protection with auto restart , VDD under-voltage vockout (UVLO) , gate output maximum voltage clamped at 15V , fixed over-temperature protection with auto restart .
This electronic circuit diagram based on the FEZ1307 integrated circuit can be used for charging cellular phones battery .
This cellular phone charger accepts a wide range input voltage from 90 to 265V AC and provide a 5 volts DC at 0.7 A .
