DC-DC CONVERTER
PROBLEM TO BE SOLVED: To provide a primary phase shift type DC-DC converter that reduces a switching loss.SOLUTION: In the DC-DC converter having an inverter INV, a transformer Tr fed with a high frequency output of the inverter, a rectification circuit Rec for rectifying an output of the transforme...
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| creator | FUKUMOTO YOSHIKI |
| description | PROBLEM TO BE SOLVED: To provide a primary phase shift type DC-DC converter that reduces a switching loss.SOLUTION: In the DC-DC converter having an inverter INV, a transformer Tr fed with a high frequency output of the inverter, a rectification circuit Rec for rectifying an output of the transformer, and a filter circuit F for removing a ripple from an output of the rectification circuit, a series circuit of capacitors C5 and C6 is connected between output terminals of the inverter and a junction of the capacitors C5 and C6 is connected to any input terminal of the inverter INV via a capacitance changeover switch Q5 that opens in a light load condition and closes in a heavy load condition, and the snubber capacitors C5, C6 are charged and discharged in the process of turning on/off switch elements Q1 and Q3 of upper arms of a reference phase leg 2 and a control phase leg 3 of the inverter and switch elements Q2 and Q4 of lower arms of the reference phase leg 2 and the control phase leg 3, to provide soft switching of each switch element. |
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of the transformer, and a filter circuit F for removing a ripple from an output of the rectification circuit, a series circuit of capacitors C5 and C6 is connected between output terminals of the inverter and a junction of the capacitors C5 and C6 is connected to any input terminal of the inverter INV via a capacitance changeover switch Q5 that opens in a light load condition and closes in a heavy load condition, and the snubber capacitors C5, C6 are charged and discharged in the process of turning on/off switch elements Q1 and Q3 of upper arms of a reference phase leg 2 and a control phase leg 3 of the inverter and switch elements Q2 and Q4 of lower arms of the reference phase leg 2 and the control phase leg 3, to provide soft switching of each switch element.</description><language>eng</language><subject>APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS ; CONTROL OR REGULATION THEREOF ; CONVERSION 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CONVERTER</title><date>2014-06-05</date><risdate>2014</risdate><abstract>PROBLEM TO BE SOLVED: To provide a primary phase shift type DC-DC converter that reduces a switching loss.SOLUTION: In the DC-DC converter having an inverter INV, a transformer Tr fed with a high frequency output of the inverter, a rectification circuit Rec for rectifying an output of the transformer, and a filter circuit F for removing a ripple from an output of the rectification circuit, a series circuit of capacitors C5 and C6 is connected between output terminals of the inverter and a junction of the capacitors C5 and C6 is connected to any input terminal of the inverter INV via a capacitance changeover switch Q5 that opens in a light load condition and closes in a heavy load condition, and the snubber capacitors C5, C6 are charged and discharged in the process of turning on/off switch elements Q1 and Q3 of upper arms of a reference phase leg 2 and a control phase leg 3 of the inverter and switch elements Q2 and Q4 of lower arms of the reference phase leg 2 and the control phase leg 3, to provide soft switching of each switch element.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION |
| title | DC-DC CONVERTER |
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