An input filter for a power electronic system includes a series-pass device arranged to
control an input characteristic of a power converter, and a control mechanism arranged to …

(57) ABSTRACT A power factor correction circuit for a power electronic system includes a
series-pass device arranged to control an input characteristic of a power converter, and a …

A method and apparatus for estimating capacitor current in a feed-forward control system
includes a circuit that conducts a current through an output capacitor to ground and …

An active electromagnetic interference (EMI) filter includes a first amplifier and a second
amplifier. The first amplifier is configured to sense noise signals on a power conductor. The …

(57) ABSTRACT A buck-boost converter includes: a converting circuit; a ripple injector, a
hysteresis comparator, and a Switching controller. The converting circuit is configured to …

Techniques for operating a power supply under light load conditions are provided. In an
example, a frequency of an oscillator can be adjusted based on a feedback signal indicative …

Techniques for indicating a load level of a DC-DC switching converter are provided. IN an
example, a method for real time load current detection for a switching converter using a …

An active electromagnetic interference (EMI) filter includes an amplifier configured to sense
noise signals on a power conductor, and drive a cancellation signal onto the power …

To provide a feedback control device that achieves smooth continuous control at the time of
switching of binary feed back controls. When, as a result of constant current feedback control …

A multiphase switching converter includes: a plurality of phases, an output capacitor, and a
control loop. Each phase includes: a current detection device, a pulse width modulator, a set …