An Enhanced PWM Control Technique Optimized for High Conversion Efficiency Across Input Line and Load

Abstract:
This paper discusses an enhanced pulse width modulation (PWM) control technique that delivers very high efficiency across a wide range of input line and load conditions. This approach provides a method for increasing available power during standby, achieving high efficiency below 1 W input. Additional features improve transient response and avoid the problems caused by the bandwidth limitations encountered when using conventional barrier crossing techniques in the feedback loop. The simplicity and flexibility of the design allows for seamless integration into power systems from 15 W to over 190 W. This paper details the innovative aspects of this new approach and demonstrates its potential to better optimize the efficiency of power supply designs.