DC/DC converter with high step-down ratio
The invention discloses a DC/DC converter with a high step-down ratio, and relates to a voltage converter. The problem that system energy needs to be transmitted twice in an existing DC/DC converter so that the efficiency of the system is quite low and a Buck circuit works in a hard switching state...
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| creator | WANG WEI XU DIANGUO GUAN LESHI CHEN HENG YAO TINGTING WANG YIJIE |
| description | The invention discloses a DC/DC converter with a high step-down ratio, and relates to a voltage converter. The problem that system energy needs to be transmitted twice in an existing DC/DC converter so that the efficiency of the system is quite low and a Buck circuit works in a hard switching state is solved. The DC/DC converter comprises an LLC circuit and a Buck circuit, the input side of the LLC circuit is connected with the input side of the Buck circuit in series, and the output side of the LLC circuit is connected with the output side of the Buck circuit in parallel; the working frequency of the LLC circuit is fixed, and the LLC circuit works at the optimal working point; and the Buck circuit is a resonant Buck converter, works in a closed-loop mode and is used for carrying out closed-loop control on the output voltage.
本发明的一种高降压比DC/DC变换器涉及一种电压变换器，是为了克服现有DC/DC变换器中系统能量需要进行两次传输，系统效率较低，以及Buck电路工作在硬开关状态下的问题，包括LLC电路与Buck电路，且LLC电路的输入侧与Buck电路的输入侧串联，LLC电路的输出侧与Buck电路的输出侧并联；LLC电路的工作频率固定、且工作在最佳工作点处；Buck电路为谐振Buck变换 |
| format | Patent |
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本发明的一种高降压比DC/DC变换器涉及一种电压变换器，是为了克服现有DC/DC变换器中系统能量需要进行两次传输，系统效率较低，以及Buck电路工作在硬开关状态下的问题，包括LLC电路与Buck电路，且LLC电路的输入侧与Buck电路的输入侧串联，LLC电路的输出侧与Buck电路的输出侧并联；LLC电路的工作频率固定、且工作在最佳工作点处；Buck电路为谐振Buck变换</description><language>chi ; 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 OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; GENERATION</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191122&DB=EPODOC&CC=CN&NR=110492750A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20191122&DB=EPODOC&CC=CN&NR=110492750A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG WEI</creatorcontrib><creatorcontrib>XU DIANGUO</creatorcontrib><creatorcontrib>GUAN LESHI</creatorcontrib><creatorcontrib>CHEN HENG</creatorcontrib><creatorcontrib>YAO TINGTING</creatorcontrib><creatorcontrib>WANG YIJIE</creatorcontrib><title>DC/DC converter with high step-down ratio</title><description>The invention discloses a DC/DC converter with a high step-down ratio, and relates to a voltage converter. The problem that system energy needs to be transmitted twice in an existing DC/DC converter so that the efficiency of the system is quite low and a Buck circuit works in a hard switching state is solved. The DC/DC converter comprises an LLC circuit and a Buck circuit, the input side of the LLC circuit is connected with the input side of the Buck circuit in series, and the output side of the LLC circuit is connected with the output side of the Buck circuit in parallel; the working frequency of the LLC circuit is fixed, and the LLC circuit works at the optimal working point; and the Buck circuit is a resonant Buck converter, works in a closed-loop mode and is used for carrying out closed-loop control on the output voltage.
本发明的一种高降压比DC/DC变换器涉及一种电压变换器，是为了克服现有DC/DC变换器中系统能量需要进行两次传输，系统效率较低，以及Buck电路工作在硬开关状态下的问题，包括LLC电路与Buck电路，且LLC电路的输入侧与Buck电路的输入侧串联，LLC电路的输出侧与Buck电路的输出侧并联；LLC电路的工作频率固定、且工作在最佳工作点处；Buck电路为谐振Buck变换</description><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</subject><subject>CONTROL OR REGULATION THEREOF</subject><subject>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNB0cdZ3cVZIzs8rSy0qSS1SKM8syVDIyEzPUCguSS3QTckvz1MoSizJzOdhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfHOfoaGBiaWRuamBo7GxKgBAJ47J9s</recordid><startdate>20191122</startdate><enddate>20191122</enddate><creator>WANG WEI</creator><creator>XU DIANGUO</creator><creator>GUAN LESHI</creator><creator>CHEN HENG</creator><creator>YAO TINGTING</creator><creator>WANG YIJIE</creator><scope>EVB</scope></search><sort><creationdate>20191122</creationdate><title>DC/DC converter with high step-down ratio</title><author>WANG WEI ; XU DIANGUO ; GUAN LESHI ; CHEN HENG ; YAO TINGTING ; WANG YIJIE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN110492750A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2019</creationdate><topic>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</topic><topic>CONTROL OR REGULATION THEREOF</topic><topic>CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><toplevel>online_resources</toplevel><creatorcontrib>WANG WEI</creatorcontrib><creatorcontrib>XU DIANGUO</creatorcontrib><creatorcontrib>GUAN LESHI</creatorcontrib><creatorcontrib>CHEN HENG</creatorcontrib><creatorcontrib>YAO TINGTING</creatorcontrib><creatorcontrib>WANG YIJIE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>WANG WEI</au><au>XU DIANGUO</au><au>GUAN LESHI</au><au>CHEN HENG</au><au>YAO TINGTING</au><au>WANG YIJIE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DC/DC converter with high step-down ratio</title><date>2019-11-22</date><risdate>2019</risdate><abstract>The invention discloses a DC/DC converter with a high step-down ratio, and relates to a voltage converter. The problem that system energy needs to be transmitted twice in an existing DC/DC converter so that the efficiency of the system is quite low and a Buck circuit works in a hard switching state is solved. The DC/DC converter comprises an LLC circuit and a Buck circuit, the input side of the LLC circuit is connected with the input side of the Buck circuit in series, and the output side of the LLC circuit is connected with the output side of the Buck circuit in parallel; the working frequency of the LLC circuit is fixed, and the LLC circuit works at the optimal working point; and the Buck circuit is a resonant Buck converter, works in a closed-loop mode and is used for carrying out closed-loop control on the output voltage.
本发明的一种高降压比DC/DC变换器涉及一种电压变换器，是为了克服现有DC/DC变换器中系统能量需要进行两次传输，系统效率较低，以及Buck电路工作在硬开关状态下的问题，包括LLC电路与Buck电路，且LLC电路的输入侧与Buck电路的输入侧串联，LLC电路的输出侧与Buck电路的输出侧并联；LLC电路的工作频率固定、且工作在最佳工作点处；Buck电路为谐振Buck变换</abstract><oa>free_for_read</oa></addata></record> |
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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 with high step-down ratio |
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