This application note describes the use of FAN6756 in a low standby power flyback power supply. This device features the innovative mWSaver™ technology, which can significantly reduce standby power in no-load or very light load conditions.
This document is an application note for the Fairchild FAN6756, a next-generation PWM controller featuring Green Mode technology and AX-CAP technology to significantly reduce standby and no-load power consumption. It is designed to minimize external component count and eliminate the need for X2-capacitor bleeder resistors.
The guide provides a step-by-step design procedure for a 65W/19V offline switch-mode power supply (SMPS) using the flyback topology. It covers calculations for input power, input capacitors, MOSFET voltage ratings, transformer inductance, and current sensing resistors, along with specific design examples. This manual is written in Japanese.
| Technology | Green Mode PWM Controller with AX-CAP technology |
|---|---|
| Application Example | 65W / 19V Offline Switch-Mode Power Supply |
| Topology | Flyback |
It significantly reduces power consumption during standby and no-load conditions with few external components.
No, the built-in discharge circuit allows for the elimination of X2-capacitor bleeder resistors.