Invention Application
WO2009118683A3 SWITCH MODE CONVERTER INCLUDING ACTIVE CLAMP FOR ACHIEVING ZERO VOLTAGE SWITCHING
审中-公开
开关模式转换器包括用于实现零电压开关的主动钳位
- Patent Title: SWITCH MODE CONVERTER INCLUDING ACTIVE CLAMP FOR ACHIEVING ZERO VOLTAGE SWITCHING
- Patent Title (中): 开关模式转换器包括用于实现零电压开关的主动钳位
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Application No.: PCT/IB2009051222Application Date: 2009-03-24
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Publication No.: WO2009118683A3Publication Date: 2009-11-26
- Inventor: GLOVINSKY TZACHI
- Applicant: SOLAREDGE TECHNOLGIES LTD , GLOVINSKY TZACHI
- Assignee: SOLAREDGE TECHNOLGIES LTD,GLOVINSKY TZACHI
- Current Assignee: SOLAREDGE TECHNOLGIES LTD,GLOVINSKY TZACHI
- Priority: US3904608 2008-03-24
- Main IPC: H02M1/34
- IPC: H02M1/34 ; H02M3/158
Abstract:
A method for providing non-resonant zero-voltage switching in a switching power converter (42, 44). The switching power converter converts power from input power to output power during multiple periodic switching cycles. The switching power converter includes a switch (Qbu, Qbo) and an auxiliary capacitor (Cbu, Cbo) adapted for connecting in parallel with the switch (Qbu, Qbo), and an inductor (206) connectible to the auxiliary capacitor (Cbu, Cbo). The main switch (Q1, Q3) is on. A previously charged (or previously discharged) auxiliary capacitor (Cbu, Cbo) is connected across the main switch (Q1, Q3) with auxiliary switches (Qabu, Qbu, Qabo, Qbo). The main switch (Q1, Q3) is switched off with zero voltage while discharging/charging the auxiliary capacitor (Cbu, Cbo) by providing a current path to the inductor (206). The auxiliary capacitor (Cbu, Cbo) is disconnected from the switch (Q1, Q3). The voltage of the auxiliary capacitor (Cbo, Cbu) is charged and discharged alternatively during subsequent switching cycles. The voltage of the auxiliary capacitor (Cbu, Cbo) stays substantially the same until the subsequent turn off of the main switch (Q1, Q3) during the next switching cycle with substantially no energy loss in the auxiliary capacitor (Cbu, Cbo).
Public/Granted literature
- WO2009118683A4 SWITCH MODE CONVERTER INCLUDING ACTIVE CLAMP FOR ACHIEVING ZERO VOLTAGE SWITCHING Public/Granted day:2010-01-21
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