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A novel two-channel light emitting diode (LED) driver is proposed, and its operating principle and characteristics are analyzed in detail. This driver uses a novel Z-source resonant network and an active switch which has the same ground properties as the power supply, and the current balance is automatically realized by balancing capacitors, so its current control is simple. At the same time, owing to the use of Z-source resonant network to transfer energy, the proposed driver has advantages such as soft switching, high efficiency, small volume and low voltage stress. To verify the effectiveness of this driver, a 80 W prototype was built and tested.
, correspAuthors=Chen ZOU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Jie ZHANG, Chen ZOU, Lin YANG, Ci XIAO, Lin LIU, Yingfei GAO), CN=ArticleExt(id=1146828035728216515, articleId=1146828031567466599, tenantId=1146029695717560320, journalId=1146031654075715584, language=CN, title=Z源谐振型单开关双通道LED驱动器, columnId=1149830184704111379, journalTitle=电源学报, columnName=照明电源, runingTitle=null, highlight=null, articleAbstract=
提出1种新型双通道发光二极管LED(light emitting diode)驱动器,并详细分析了其工作原理和特点。所提驱动器使用1种新型Z源谐振网络和1个与电源共地的有源开关结构,并利用平衡电容自动实现电流均衡,因此其电流控制非常简单。同时由于利用Z源谐振网络传递能量,该驱动器具有软开关、效率高、体积小、电压应力较低等优势。为验证所提驱动器的有效性,研制了1台80 W的实验样机进行测试。
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1 Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, China
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1 湖北工业大学太阳能高效利用及储能运行控制湖北省重点实验室,武汉 430068
2 襄阳湖北工业大学产业研究院,襄阳 441100, bio={"img":"LrFv9tUAtPTXROPNSUC0Mw==","content":"
张杰(1972— ),男,博士,副教授。研究方向:电力电子在智能微电网中的应用、高功率密度DC-DC变换器。E-mail:274870985@qq.com。
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张杰(1972— ),男,博士,副教授。研究方向:电力电子在智能微电网中的应用、高功率密度DC-DC变换器。E-mail:274870985@qq.com。
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1 Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1205945146236011195, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, authorId=1205945146005324451, language=CN, stringName=杨淋, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 湖北工业大学太阳能高效利用及储能运行控制湖北省重点实验室,武汉 430068, bio={"content":"
杨淋(1997— ),男,中国电源学会学生会员,硕士。研究方向:电力电子与电力传动。E-mail:16671098679@163.com。
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杨淋(1997— ),男,中国电源学会学生会员,硕士。研究方向:电力电子与电力传动。E-mail:16671098679@163.com。
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1 Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1205945147783709412, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, authorId=1205945147498496714, language=CN, stringName=肖辞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1 湖北工业大学太阳能高效利用及储能运行控制湖北省重点实验室,武汉 430068, bio={"content":"
肖辞(1998— ),女,硕士。研究方向:电力电子与电力传动。E-mail:865384542@qq.com。
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肖辞(1998— ),女,硕士。研究方向:电力电子与电力传动。E-mail:865384542@qq.com。
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1 Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System, Hubei University of Technology, Wuhan 430068, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1205945148278637313, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, authorId=1205945147922121451, language=CN, stringName=刘林, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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刘林(1997— ),男,硕士。研究方向:储能变流器。E-mail:47286834@qq.com。
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刘林(1997— ),男,硕士。研究方向:储能变流器。E-mail:47286834@qq.com。
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高迎飞(1996— ),女,硕士。研究方向:储能变流器。E-mail:1979630676@qq.com。
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高迎飞(1996— ),女,硕士。研究方向:储能变流器。E-mail:1979630676@qq.com。
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1 湖北工业大学太阳能高效利用及储能运行控制湖北省重点实验室,武汉 430068)]), AuthorCompany(id=1205945145044828745, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, xref=2, ext=[AuthorCompanyExt(id=1205945145061605961, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, companyId=1205945145044828745, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2 襄阳湖北工业大学产业研究院,襄阳 441100)])], figs=[ArticleFig(id=1205945149612426069, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 1, caption=
Traditional Z-source network in Z-source DC-DC converter, figureFileSmall=Ve0sRlEA7bt1aSmDEDvZrg==, figureFileBig=H7OnBe4CnoyuPWSYaPKN1A==, tableContent=null), ArticleFig(id=1205945149725672281, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图1, caption=
Z源DC-DC变换器中的传统Z源网络, figureFileSmall=Ve0sRlEA7bt1aSmDEDvZrg==, figureFileBig=H7OnBe4CnoyuPWSYaPKN1A==, tableContent=null), ArticleFig(id=1205945150040245095, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 2, caption=
Z-source resonant single-switch two-channel LED driver, figureFileSmall=ILVqWLWae7QcS4e7iQdYKg==, figureFileBig=pum+Mr1+oG+yaA2vXOkCVg==, tableContent=null), ArticleFig(id=1205945150145102699, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图2, caption=
Z源谐振型单开关双通道LED驱动器, figureFileSmall=ILVqWLWae7QcS4e7iQdYKg==, figureFileBig=pum+Mr1+oG+yaA2vXOkCVg==, tableContent=null), ArticleFig(id=1205945150283514741, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 3, caption=
Equivalent circuits of proposed driver in different modes, figureFileSmall=AUFERP3WEdMRHUN7gcmzNg==, figureFileBig=Fo9UAUZzANzSOtdJjOGe1A==, tableContent=null), ArticleFig(id=1205945150417732473, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图3, caption=
驱动器各模态的等效电路, figureFileSmall=AUFERP3WEdMRHUN7gcmzNg==, figureFileBig=Fo9UAUZzANzSOtdJjOGe1A==, tableContent=null), ArticleFig(id=1205945150539367293, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 4, caption=
Key waveforms of proposed driver, figureFileSmall=6nHexSrhyWuHNnAHuw+Ijw==, figureFileBig=ZRZApt+MxJusfeyx+allRw==, tableContent=null), ArticleFig(id=1205945150665196419, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图4, caption=
驱动器主要波形, figureFileSmall=6nHexSrhyWuHNnAHuw+Ijw==, figureFileBig=ZRZApt+MxJusfeyx+allRw==, tableContent=null), ArticleFig(id=1205945151898321802, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 5, caption=
Key experimental waveforms (part 1), figureFileSmall=bHR3V7PcyRUiKkwZ7T6jXA==, figureFileBig=t+3CuYuXrrVImS2UZK5zYQ==, tableContent=null), ArticleFig(id=1205945152015762317, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图5, caption=
实验关键波形1, figureFileSmall=bHR3V7PcyRUiKkwZ7T6jXA==, figureFileBig=t+3CuYuXrrVImS2UZK5zYQ==, tableContent=null), ArticleFig(id=1205945152141591445, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 6, caption=
Key experimental waveforms (part 2), figureFileSmall=woUbaYTF3AIfBA91C0LY8w==, figureFileBig=GOHgCjQ1VaoqmJSP8gMILw==, tableContent=null), ArticleFig(id=1205945152254837662, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图6, caption=
实验关键波形2, figureFileSmall=woUbaYTF3AIfBA91C0LY8w==, figureFileBig=GOHgCjQ1VaoqmJSP8gMILw==, tableContent=null), ArticleFig(id=1205945152389055397, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 7, caption=
Key experimental waveforms (part 3), figureFileSmall=hn3kltoBwe7tFoGv/QE6Kw==, figureFileBig=rgHJHd/QAB8qEYlPfiYipA==, tableContent=null), ArticleFig(id=1205945152531661740, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图7, caption=
实验关键波形3, figureFileSmall=hn3kltoBwe7tFoGv/QE6Kw==, figureFileBig=rgHJHd/QAB8qEYlPfiYipA==, tableContent=null), ArticleFig(id=1205945152640713650, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 8, caption=
Key experimental waveforms (part 4), figureFileSmall=FUr3WzJAlLdlQdAW8dHKIw==, figureFileBig=Zn+R/Ri61nFfs0ACduLizg==, tableContent=null), ArticleFig(id=1205945152753959864, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图8, caption=
实验关键波形4, figureFileSmall=FUr3WzJAlLdlQdAW8dHKIw==, figureFileBig=Zn+R/Ri61nFfs0ACduLizg==, tableContent=null), ArticleFig(id=1205945152867206079, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 9, caption=
Waveforms of output current, figureFileSmall=Ajb6Jcch1fS8a2FWDAGgKQ==, figureFileBig=2n+R7Hy4vPqGQEjCKApAJg==, tableContent=null), ArticleFig(id=1205945153009812419, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图9, caption=
输出电流波形, figureFileSmall=Ajb6Jcch1fS8a2FWDAGgKQ==, figureFileBig=2n+R7Hy4vPqGQEjCKApAJg==, tableContent=null), ArticleFig(id=1205945153127252939, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Fig. 10, caption=
Comparison between Z-source resonant LED driver and quasi-Z-source LED driver, figureFileSmall=knXIAvV0oO8d8r6/bNpSzg==, figureFileBig=L4opJrnVfqKIS7QszQ3/vQ==, tableContent=null), ArticleFig(id=1205945153236304849, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=图10, caption=
Z源谐振型LED驱动器和准Z源LED驱动器的对比, figureFileSmall=knXIAvV0oO8d8r6/bNpSzg==, figureFileBig=L4opJrnVfqKIS7QszQ3/vQ==, tableContent=null), ArticleFig(id=1205945153336968153, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Tab. 1, caption=
Circuit parameters of prototype
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值或型号 |
| 输入电感${L}_{\text{m}}$/mH | 2 |
| 谐振电感${L}_{1}、{L}_{2}$/μH | 2.2 |
| 平衡电容${C}_{1}、{C}_{2}$/μF | 2 |
| 开关频率${f}_{\text{s}}$/kHz | 50 |
| 滤波电容${C}_{\text{o1}}、{C}_{\text{o2}}$/μF | 100 |
| 输出负载LED1、LED2/个 | 33、49 |
| 输出电流${I}_{\text{LED1}}、{I}_{\text{LED2}}$/mA | 300 |
| 开关管${\text{S}}_{\text{1}}$ | FCH110N65F |
| 二极管${\text{D}}_{\text{1}}、{\text{D}}_{\text{o1}}、{\text{D}}_{\text{o2}}$ | C3D03060A |
), ArticleFig(id=1205945153462797278, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=表1, caption=
实验样机的电路参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值或型号 |
| 输入电感${L}_{\text{m}}$/mH | 2 |
| 谐振电感${L}_{1}、{L}_{2}$/μH | 2.2 |
| 平衡电容${C}_{1}、{C}_{2}$/μF | 2 |
| 开关频率${f}_{\text{s}}$/kHz | 50 |
| 滤波电容${C}_{\text{o1}}、{C}_{\text{o2}}$/μF | 100 |
| 输出负载LED1、LED2/个 | 33、49 |
| 输出电流${I}_{\text{LED1}}、{I}_{\text{LED2}}$/mA | 300 |
| 开关管${\text{S}}_{\text{1}}$ | FCH110N65F |
| 二极管${\text{D}}_{\text{1}}、{\text{D}}_{\text{o1}}、{\text{D}}_{\text{o2}}$ | C3D03060A |
), ArticleFig(id=1205945153634763750, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=EN, label=Tab. 2, caption=
Comparison among schemes for two-channel LED driver
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 文献[9] | 文献[10] | 文献[16] | 本文 |
| 输出通道数 | 2 | 2 | 2 | 2 |
| 开关管数量 | 2 | 2 | 1 | 1 |
| 二极管数量 | 2 | 2 | 1 | 3 |
| 软开关情况 | 无 | 无 | 无 | 2ZCS |
| 开关管电压应力 | $\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{2}$ | $\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{D},\text{ }\frac{{V}_{\text{LED1}}}{D}$ | $\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{2D-1}$ | ${V}_{\text{LED1}}+{V}_{\text{LED2}}$ |
| 二极管电压应力 | ${V}_{\text{LED1}}+{V}_{\text{LED2}},\text{ }\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{2}$ | $\frac{{V}_{\text{LED1}}}{D},\text{ }\frac{{V}_{\text{LED2}}}{D}$ | $\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{2D-1}$ | ${V}_{\text{LED1}}+{V}_{\text{LED2}}$ |
| 电压增益 | $\frac{2}{1-D}(0.5<D<1.0)$ | $D(0<D<0.5)$ | $\frac{2D-1}{1-D}(0.5<D<1.0)$ | $\frac{1}{1-D}(0<D<1.0)$ |
| 功率等级、开关频率 | 24 W、100 kHz | 25 W、50 kHz | 80 W、50 kHz | 80 W、50 kHz |
| 磁性元件大小 | 212 μH×2 | 10 mH×2 | 2 mH,11 mH×2 | 2 mH,2.2 μH×2 |
| 效率 | 接近91.7% | 最高96.1% | 89.5%~93.1% | 90.4%~95.3% |
), ArticleFig(id=1205945153760592875, tenantId=1146029695717560320, journalId=1146031654075715584, articleId=1146828031567466599, language=CN, label=表2, caption=
双通道LED驱动方案对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量 | 文献[9] | 文献[10] | 文献[16] | 本文 |
| 输出通道数 | 2 | 2 | 2 | 2 |
| 开关管数量 | 2 | 2 | 1 | 1 |
| 二极管数量 | 2 | 2 | 1 | 3 |
| 软开关情况 | 无 | 无 | 无 | 2ZCS |
| 开关管电压应力 | $\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{2}$ | $\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{D},\text{ }\frac{{V}_{\text{LED1}}}{D}$ | $\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{2D-1}$ | ${V}_{\text{LED1}}+{V}_{\text{LED2}}$ |
| 二极管电压应力 | ${V}_{\text{LED1}}+{V}_{\text{LED2}},\text{ }\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{2}$ | $\frac{{V}_{\text{LED1}}}{D},\text{ }\frac{{V}_{\text{LED2}}}{D}$ | $\frac{{V}_{\text{LED1}}+{V}_{\text{LED2}}}{2D-1}$ | ${V}_{\text{LED1}}+{V}_{\text{LED2}}$ |
| 电压增益 | $\frac{2}{1-D}(0.5<D<1.0)$ | $D(0<D<0.5)$ | $\frac{2D-1}{1-D}(0.5<D<1.0)$ | $\frac{1}{1-D}(0<D<1.0)$ |
| 功率等级、开关频率 | 24 W、100 kHz | 25 W、50 kHz | 80 W、50 kHz | 80 W、50 kHz |
| 磁性元件大小 | 212 μH×2 | 10 mH×2 | 2 mH,11 mH×2 | 2 mH,2.2 μH×2 |
| 效率 | 接近91.7% | 最高96.1% | 89.5%~93.1% | 90.4%~95.3% |
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