Abstract: In an embodiment, an adaptive current limiter includes a sense element, a current pass element, and a controller. The sense element includes a first sense terminal coupled to a power supply terminal and a second sense terminal. The sense element generates a sense voltage in response to a feedback current. The current pass element includes a first terminal for receiving the feedback current, a second terminal coupled to the second sense terminal, and a control terminal. The controller is coupled to the sense element and to the control terminal for adjusting the feedback current conducted by the current pass element based on the sense voltage and a time-varying voltage signal.

Abstract: A method and circuit for controlling feedback in, for example, a power factor converter circuit. A current sense signal is compared with a reference signal to generate a comparison signal. A clipped signal is generated from the comparison signal where the signal is a periodic waveform that transitions between two levels that are symmetrically positioned about a reference signal. The clipped signal is used to generate a summed signal at the input of an integrator. The integrator generates a feedback signal suitable for use in, for example, a power factor converter circuit.

Abstract: In an embodiment, an adaptive current limiter includes a sense element, a current pass element, and a controller. The sense element includes a first sense terminal coupled to a power supply terminal and a second sense terminal. The sense element generates a sense voltage in response to a feedback current. The current pass element includes a first terminal for receiving the feedback current, a second terminal coupled to the second sense terminal, and a control terminal. The controller is coupled to the sense element and to the control terminal for adjusting the feedback current conducted by the current pass element based on the sense voltage and a time-varying voltage signal.

Abstract: A method and circuit for controlling feedback in, for example, a power factor converter circuit. A current sense signal is compared with a reference signal to generate a comparison signal. A clipped signal is generated from the comparison signal where the signal is a periodic waveform that transitions between two levels that are symmetrically positioned about a reference signal. The clipped signal is used to generate a summed signal at the input of an integrator. The integrator generates a feedback signal suitable for use in, for example, a power factor converter circuit.