The Printer Power Supply Based on NCP1351

Switch power chip NCP1351 with fixed peak current technique(quasi-fixed Ton),can decrease its switching frequency as the load becomes lighter.As a result,power supply using NCP1351 offers excellent light-load power consumption and high performance at other load.In the paper,a NCP1351 based circuit diagram of high performance printer is introduced,and the process of dynamic load response is analyzed.The experimental results are also given.