A system and method for snubbing transformer leakage energy in a power supply having a transformer and a main switch, in which leakage energy is stored in a capacitor as stored leakage energy when the main switch is turned off, and the stored leakage energy is transferred to the transformer through an inductor when the main switch is turned on.

An electrical wiring device for delivering power to multiple mobile devices including: a housing having a faceplate; a first power delivery port accessible through the faceplate; a second power delivery accessible through the faceplate; an AC/DC converter disposed in the housing and configured to receive an AC signal from a connection to a source of AC mains power and to output a DC signal; a first DC/DC converter disposed in the housing and configured to receive the DC signal and provide a first DC output signal having a first power to a first power delivery port; a second DC/DC converter disposed in the housing and configured to receive the DC signal and provide a second DC output signal having a second power to a second power delivery port; wherein the first DC output signal is different from the second DC output signal.

In some aspects, the techniques described herein relate to a circuit including: a metal-oxide semiconductor field-effect transistor (MOSFET) including a gate, a source, and a drain; and a snubber circuit coupled between the drain and the source, the snubber circuit including: a diode having a cathode and an anode, the cathode being coupled with the drain; a capacitor having a first terminal coupled with the anode, and a second terminal coupled with the source; and a resistor having a first terminal coupled with the anode and the first terminal of the capacitor, and a second terminal coupled with the source.

Disclosed herein is an improved flyback converter that separates the magnetic components of the converter into a transformer and a separate, discrete energy storage inductor. This arrangement can improve the operating efficiency of the converter by reducing the commutation losses as compared to a conventional flyback converter. The magnetic components may be constructed on separate magnetic cores or may be constructed on magnetic cores having at least one common element, thereby allowing for at least partial magnetic flux cancellation in a portion of the core, reducing core losses.

Disclosed herein is an improved flyback converter that separates the magnetic components of the converter into a transformer and a separate, discrete energy storage inductor. This arrangement can improve the operating efficiency of the converter by reducing the commutation losses as compared to a conventional flyback converter. The magnetic components may be constructed on separate magnetic cores or may be constructed on magnetic cores having at least one common element, thereby allowing for at least partial magnetic flux cancellation in a portion of the core, reducing core losses.

A solar charging system for the vehicle includes a first photovoltaic (PV) module, a second PV module serially connected to the first PV module, and a differential power processing (DPP) transformer that converts power generated from the first PV module and the second PV module by using a magnetic body having a multi-winding structure.

An apparatus according to an embodiment includes an upper and lower arm connected between a high and a low potential end; a first capacitor connected at one end to the high potential end; a second capacitor connected at one end to the low potential end; a first regenerative rectifier circuit connected to another end of the first capacitor; a second regenerative rectifier circuit connected to another end of the second capacitor; a first conversion circuit to cause energy stored in the first capacitor to be discharged; and a second conversion circuit to cause energy stored in the second capacitor to be discharged.

Various embodiments of the teachings herein include an electronic switch comprising: a semiconductor switch; and a series circuit. The series circuit is arranged parallel to the semiconductor switch and includes a first resistor, a capacitor, and a second resistor arranged in order R-C-R. The first resistor and the second resistor are arranged to create a bifilar resistor.

The invention relates to a circuit apparatus (10) for controlling the current flow of the secondary side (20) of a direct voltage converter, comprising: a controllable switch element (1) having a first connection (1a), a second connection (1c) and a control connection (1b); a snubber circuit, which is electrically coupled to the source connection (1a) and the second connection (1c); and a control circuit (5), which is designed to control a deactivation time of the controllable switch element (1) via the control connection (1b); wherein the control circuit (5) is electrically coupled to the snubber circuit and is designed to control the deactivation time according to an electrical parameter of the coupling.

The present disclosure relates to a transient voltage suppression device comprising a single crystal semiconductor substrate doped with a first conductivity type comprising first and second opposing surfaces, a semiconductor region doped with a second conductivity type opposite to the first conductivity type extending into the substrate from the first surface, a first electrically conductive electrode on the first side contacting the semiconductor region and a second electrically conductive electrode on the second side contacting the substrate, a first interface between the substrate and the semiconductor region forming the junction of a TVS diode and a second interface between the first electrically conductive electrode and the semiconductor region or between the substrate and the second electrically conductive electrode forming the junction of a Schottky diode.