국제 및 국내 특허문헌 검색

1. (WO2009118682) SWITCH MODE CONVERTER INCLUDING AUXILIARY COMMUTATION CIRCUIT FOR ACHIEVING ZERO CURRENT SWITCHING

Pub. No.:    WO/2009/118682    International Application No.:    PCT/IB2009/051221
Publication Date: Fri Oct 02 01:59:59 CEST 2009 International Filing Date: Wed Mar 25 00:59:59 CET 2009
IPC: H02M 3/158
Applicants: SOLAREDGE TECHNOLOGIES LTD.
GLOVINSKY, Tzachi
Inventors: GLOVINSKY, Tzachi
Title: SWITCH MODE CONVERTER INCLUDING AUXILIARY COMMUTATION CIRCUIT FOR ACHIEVING ZERO CURRENT SWITCHING
Abstract:
A method for providing non-resonant zero-current switching in a switching power converter (30) operating in a continuous current mode. The switching power converter (30) converts power from input power to output power. The switching power converter (30) includes a main switch (Q1) connected to a main inductor (106), wherein an auxiliary inductor (302) is connectible with the main inductor (106). The main current (IP) flows from an input to an output. The auxiliary inductor (302) is connected with the main inductor (106) thereby charging the auxiliary inductor (302) so that an auxiliary current (Iaux) flows from the output to the input opposing the main current (IP). Upon a total current including a sum of the main current (IP) and the auxiliary current (Iaux), substantially equals or approaches zero, the switch (Q1) is turned on.