Abstract: Techniques are disclosed to regulate the output power of a power supply. An example technique for regulating a power supply output includes regulating in response to a feedback signal an output current of a power supply in a regulated current region of operation if an output voltage of the power supply is less than a second transition voltage. The output voltage and the output current of the power supply are regulated in a transition region current region of operation in response to the feedback signal if the output voltage of the power supply is between first and second transition voltages or if the output current of the power supply is between first and second transition currents.

Abstract: Techniques are disclosed to regulate the output power of a power supply. An example regulator circuit includes a feedback circuit coupled to generate a feedback signal in response to an output of a power supply. The feedback circuit includes a voltage regulation circuit, a current regulation circuit and a transition region regulation circuit coupled to sense the output of the power supply and generate first, second and third regulation signals, respectively. The feedback signal is responsive to the first, second and third regulation signals. A switch coupled to an energy transfer element coupled between an input and the output of the power supply. A controller is coupled to the switch to control switching of the switch to regulate the output of the power supply in response to the feedback signal.

Abstract: Techniques are disclosed to regulate the output power of a power supply. An example power supply regulator includes an energy transfer element coupled between an input and an output of a switched mode power supply. A switch is coupled to the energy transfer element at the input of the power supply. A controller is coupled to the switch to control switching of the switch to regulate the output of the switched mode power supply in response to a feedback signal. A feedback circuit is coupled to generate the feedback signal in response to the output of the switched mode power supply. The feedback circuit includes a voltage regulation circuit, a current regulation circuit and a transition region regulation circuit coupled to sense the output of the switched mode power supply. The voltage regulation circuit, a current regulation circuit and a transition region regulation circuit generate first, second and third regulation signals, respectively.