STEP-DOWN DC/DC CONVERTER, CONTROLLER FOR THE SAME, AND CONTROL METHOD OF THE SAME, AND ELECTRONIC APPARATUS
To provide a controller for a DC/DC converter having an over-current protection function.SOLUTION: A pulse modulator 210 generates a pulse modulation signal S1 that is pulse-modulated so that an output of a step-down DC/DC converter 100 is close to a target state. An over-current detection circuit 2...
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Patent |
| Sprache: | eng ; jpn |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | ISHINO TSUTOMU |
| description | To provide a controller for a DC/DC converter having an over-current protection function.SOLUTION: A pulse modulator 210 generates a pulse modulation signal S1 that is pulse-modulated so that an output of a step-down DC/DC converter 100 is close to a target state. An over-current detection circuit 220 compares a low-side current IML flowing in a low-side transistor ML with a predetermined overload current threshold value IOCPL, and asserts an overload current detection signal LOCL when the low-side current IML is larger than the overload current threshold value IOCPL. In a first mode (i), a control pulse S2 input into a driver circuit 240 is in accordance with the pulse modulation signal S1, and in a second mode (ii), the control pulse S2 is set to a period and a second level where the overload current detection signal LOCL is asserted, and is set to a first level during a fixing on time after the overload current detection signal LOCL is negated.SELECTED DRAWING: Figure 1
【課題】過電流保護機能を有するＤＣ／ＤＣコンバータのコントローラを提供する。【解決手段】パルス変調器２１０は、降圧ＤＣ／ＤＣコンバータ１００の出力が目標状態に近づくようにパルス変調される、パルス変調信号Ｓ１を生成する。過電流検出回路２２０は、ローサイドトランジスタＭＬに流れるローサイド電流ＩＭＬを所定の過電流しきい値ＩＯＣＰＬと比較し、ローサイド電流ＩＭＬが過電流しきい値ＩＯＣＰＬより大きいときに、過電流検出信号ＬＯＣＬをアサートする。（i）第１モードにおいて、ドライバ回路２４０に入力される制御パルスＳ２はパルス変調信号Ｓ１に応じており、（ii）第２モードにおいて、制御パルスＳ２は、過電流検出信号ＬＯＣＬがアサートされる期間、第２レベルをとり、過電流検出信号ＬＯＣＬがネゲートされてから固定オン時間の間、第１レベルをとる。【選択図】図１ |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2022146584A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2022146584A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2022146584A3</originalsourceid><addsrcrecordid>eNqNirEKwjAUALM4iPoPD-cWNVZxDckLUdIkJE8dS5E4FS3U_0cFXZyc7uBuzLpEGErlzw6UXCgJ0rsTRsJYvJWitxYjaB-BDEISNRYgnPpGqJGMV-D1T0eL8jW4vQQRgoiCjmnKRte2G_LswwmbayRpytzfmzz07SXf8qM5BL7kfFVtN7tKrP-anv1hNnQ</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>STEP-DOWN DC/DC CONVERTER, CONTROLLER FOR THE SAME, AND CONTROL METHOD OF THE SAME, AND ELECTRONIC APPARATUS</title><source>esp@cenet</source><creator>ISHINO TSUTOMU</creator><creatorcontrib>ISHINO TSUTOMU</creatorcontrib><description>To provide a controller for a DC/DC converter having an over-current protection function.SOLUTION: A pulse modulator 210 generates a pulse modulation signal S1 that is pulse-modulated so that an output of a step-down DC/DC converter 100 is close to a target state. An over-current detection circuit 220 compares a low-side current IML flowing in a low-side transistor ML with a predetermined overload current threshold value IOCPL, and asserts an overload current detection signal LOCL when the low-side current IML is larger than the overload current threshold value IOCPL. In a first mode (i), a control pulse S2 input into a driver circuit 240 is in accordance with the pulse modulation signal S1, and in a second mode (ii), the control pulse S2 is set to a period and a second level where the overload current detection signal LOCL is asserted, and is set to a first level during a fixing on time after the overload current detection signal LOCL is negated.SELECTED DRAWING: Figure 1
【課題】過電流保護機能を有するＤＣ／ＤＣコンバータのコントローラを提供する。【解決手段】パルス変調器２１０は、降圧ＤＣ／ＤＣコンバータ１００の出力が目標状態に近づくようにパルス変調される、パルス変調信号Ｓ１を生成する。過電流検出回路２２０は、ローサイドトランジスタＭＬに流れるローサイド電流ＩＭＬを所定の過電流しきい値ＩＯＣＰＬと比較し、ローサイド電流ＩＭＬが過電流しきい値ＩＯＣＰＬより大きいときに、過電流検出信号ＬＯＣＬをアサートする。（i）第１モードにおいて、ドライバ回路２４０に入力される制御パルスＳ２はパルス変調信号Ｓ１に応じており、（ii）第２モードにおいて、制御パルスＳ２は、過電流検出信号ＬＯＣＬがアサートされる期間、第２レベルをとり、過電流検出信号ＬＯＣＬがネゲートされてから固定オン時間の間、第１レベルをとる。【選択図】図１</description><language>eng ; jpn</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>2022</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=20221005&DB=EPODOC&CC=JP&NR=2022146584A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20221005&DB=EPODOC&CC=JP&NR=2022146584A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ISHINO TSUTOMU</creatorcontrib><title>STEP-DOWN DC/DC CONVERTER, CONTROLLER FOR THE SAME, AND CONTROL METHOD OF THE SAME, AND ELECTRONIC APPARATUS</title><description>To provide a controller for a DC/DC converter having an over-current protection function.SOLUTION: A pulse modulator 210 generates a pulse modulation signal S1 that is pulse-modulated so that an output of a step-down DC/DC converter 100 is close to a target state. An over-current detection circuit 220 compares a low-side current IML flowing in a low-side transistor ML with a predetermined overload current threshold value IOCPL, and asserts an overload current detection signal LOCL when the low-side current IML is larger than the overload current threshold value IOCPL. In a first mode (i), a control pulse S2 input into a driver circuit 240 is in accordance with the pulse modulation signal S1, and in a second mode (ii), the control pulse S2 is set to a period and a second level where the overload current detection signal LOCL is asserted, and is set to a first level during a fixing on time after the overload current detection signal LOCL is negated.SELECTED DRAWING: Figure 1
【課題】過電流保護機能を有するＤＣ／ＤＣコンバータのコントローラを提供する。【解決手段】パルス変調器２１０は、降圧ＤＣ／ＤＣコンバータ１００の出力が目標状態に近づくようにパルス変調される、パルス変調信号Ｓ１を生成する。過電流検出回路２２０は、ローサイドトランジスタＭＬに流れるローサイド電流ＩＭＬを所定の過電流しきい値ＩＯＣＰＬと比較し、ローサイド電流ＩＭＬが過電流しきい値ＩＯＣＰＬより大きいときに、過電流検出信号ＬＯＣＬをアサートする。（i）第１モードにおいて、ドライバ回路２４０に入力される制御パルスＳ２はパルス変調信号Ｓ１に応じており、（ii）第２モードにおいて、制御パルスＳ２は、過電流検出信号ＬＯＣＬがアサートされる期間、第２レベルをとり、過電流検出信号ＬＯＣＬがネゲートされてから固定オン時間の間、第１レベルをとる。【選択図】図１</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>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNirEKwjAUALM4iPoPD-cWNVZxDckLUdIkJE8dS5E4FS3U_0cFXZyc7uBuzLpEGErlzw6UXCgJ0rsTRsJYvJWitxYjaB-BDEISNRYgnPpGqJGMV-D1T0eL8jW4vQQRgoiCjmnKRte2G_LswwmbayRpytzfmzz07SXf8qM5BL7kfFVtN7tKrP-anv1hNnQ</recordid><startdate>20221005</startdate><enddate>20221005</enddate><creator>ISHINO TSUTOMU</creator><scope>EVB</scope></search><sort><creationdate>20221005</creationdate><title>STEP-DOWN DC/DC CONVERTER, CONTROLLER FOR THE SAME, AND CONTROL METHOD OF THE SAME, AND ELECTRONIC APPARATUS</title><author>ISHINO TSUTOMU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2022146584A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2022</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>ISHINO TSUTOMU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ISHINO TSUTOMU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>STEP-DOWN DC/DC CONVERTER, CONTROLLER FOR THE SAME, AND CONTROL METHOD OF THE SAME, AND ELECTRONIC APPARATUS</title><date>2022-10-05</date><risdate>2022</risdate><abstract>To provide a controller for a DC/DC converter having an over-current protection function.SOLUTION: A pulse modulator 210 generates a pulse modulation signal S1 that is pulse-modulated so that an output of a step-down DC/DC converter 100 is close to a target state. An over-current detection circuit 220 compares a low-side current IML flowing in a low-side transistor ML with a predetermined overload current threshold value IOCPL, and asserts an overload current detection signal LOCL when the low-side current IML is larger than the overload current threshold value IOCPL. In a first mode (i), a control pulse S2 input into a driver circuit 240 is in accordance with the pulse modulation signal S1, and in a second mode (ii), the control pulse S2 is set to a period and a second level where the overload current detection signal LOCL is asserted, and is set to a first level during a fixing on time after the overload current detection signal LOCL is negated.SELECTED DRAWING: Figure 1
【課題】過電流保護機能を有するＤＣ／ＤＣコンバータのコントローラを提供する。【解決手段】パルス変調器２１０は、降圧ＤＣ／ＤＣコンバータ１００の出力が目標状態に近づくようにパルス変調される、パルス変調信号Ｓ１を生成する。過電流検出回路２２０は、ローサイドトランジスタＭＬに流れるローサイド電流ＩＭＬを所定の過電流しきい値ＩＯＣＰＬと比較し、ローサイド電流ＩＭＬが過電流しきい値ＩＯＣＰＬより大きいときに、過電流検出信号ＬＯＣＬをアサートする。（i）第１モードにおいて、ドライバ回路２４０に入力される制御パルスＳ２はパルス変調信号Ｓ１に応じており、（ii）第２モードにおいて、制御パルスＳ２は、過電流検出信号ＬＯＣＬがアサートされる期間、第２レベルをとり、過電流検出信号ＬＯＣＬがネゲートされてから固定オン時間の間、第１レベルをとる。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | eng ; jpn |
| recordid | cdi_epo_espacenet_JP2022146584A |
| source | esp@cenet |
| 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 | STEP-DOWN DC/DC CONVERTER, CONTROLLER FOR THE SAME, AND CONTROL METHOD OF THE SAME, AND ELECTRONIC APPARATUS |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-04T19%3A39%3A35IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=ISHINO%20TSUTOMU&rft.date=2022-10-05&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EJP2022146584A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |