Optimum Phase Shift in the Self-Oscillating Loop for Piezoelectric-Transformer-Based Power Converters
A new method is implemented in designing of self-oscillating loop for driving piezoelectric transformers (PT). The implemented method is based on combining both analog and digital control systems. Digitally controlled time delay through the self-oscillating loop results in very precise frequency con...
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| Veröffentlicht in: | IEEE transactions on power electronics 2018-09, Vol.33 (9), p.8101-8109 |
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| container_end_page | 8109 |
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| container_issue | 9 |
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| container_title | IEEE transactions on power electronics |
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| creator | Ekhtiari, Marzieh Zsurzsan, Tiberiu-Gabriel Andersen, Michael A. E. Zhang, Zhe |
| description | A new method is implemented in designing of self-oscillating loop for driving piezoelectric transformers (PT). The implemented method is based on combining both analog and digital control systems. Digitally controlled time delay through the self-oscillating loop results in very precise frequency control and ensures optimum operation of the PT in terms of gain and efficiency. Time delay is implemented digitally for the first time through a 16-b digital-to-analog converter in the self-oscillating loop. The new design of the delay circuit provides 45-ps time resolution, enabling fine-grained control of phase in the self-oscillating loop. This allows the control loop to dynamically follow frequency changes of the transformer in each resonant cycle. Ultimately, by selecting the optimum phase shift, maximum efficiency under the load and temperature condition is achievable. |
| doi_str_mv | 10.1109/TPEL.2017.2771297 |
| format | Article |
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E.</creatorcontrib><creatorcontrib>Zhang, Zhe</creatorcontrib><title>Optimum Phase Shift in the Self-Oscillating Loop for Piezoelectric-Transformer-Based Power Converters</title><title>IEEE transactions on power electronics</title><addtitle>TPEL</addtitle><description>A new method is implemented in designing of self-oscillating loop for driving piezoelectric transformers (PT). The implemented method is based on combining both analog and digital control systems. Digitally controlled time delay through the self-oscillating loop results in very precise frequency control and ensures optimum operation of the PT in terms of gain and efficiency. Time delay is implemented digitally for the first time through a 16-b digital-to-analog converter in the self-oscillating loop. The new design of the delay circuit provides 45-ps time resolution, enabling fine-grained control of phase in the self-oscillating loop. This allows the control loop to dynamically follow frequency changes of the transformer in each resonant cycle. Ultimately, by selecting the optimum phase shift, maximum efficiency under the load and temperature condition is achievable.</description><subject>Circuit design</subject><subject>Circuit faults</subject><subject>Delay</subject><subject>Delay circuits</subject><subject>Delay effects</subject><subject>Delay lines</subject><subject>Digital to analog conversion</subject><subject>Digital to analog converters</subject><subject>Frequency control</subject><subject>Optimum delay line</subject><subject>Oscillators</subject><subject>Phase shift</subject><subject>piezoelectric transformer (PT)</subject><subject>Piezoelectricity</subject><subject>Power converters</subject><subject>Resonant frequency</subject><subject>self-oscillating loop</subject><subject>switch-mode power supply (SMPS)</subject><subject>Switches</subject><subject>Time lag</subject><subject>Transformers</subject><subject>zero-voltage switching (ZVS)</subject><issn>0885-8993</issn><issn>1941-0107</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kF1LwzAUhoMoOKc_QLwJeN2Z06RNcqnDLyis4LwuXXriMtpmJp2iv96ODa8O55z3Ax5CroHNAJi-W5aPxSxlIGeplJBqeUImoAUkDJg8JROmVJYorfk5uYhxwxiIjMGE4GI7uG7X0XJdR6Rva2cH6no6rMcFW5ssonFtWw-u_6CF91tqfaClw1-PLZohOJMsQ93H8dxhSB7GlIaW_hsDnfv-C8OAIV6SM1u3Ea-Oc0renx6X85ekWDy_zu-LxHCeDwmvlc5xZSVqqTJsciVklhmeA7cNF5DVqpapNtJILZtMC6FBrMZHmjKb54pPye0hdxv85w7jUG38LvRjZZWynDPBIU9HFRxUJvgYA9pqG1xXh58KWLWnWe1pVnua1ZHm6Lk5eBwi_usVMKaV4H8fZ3Ai</recordid><startdate>20180901</startdate><enddate>20180901</enddate><creator>Ekhtiari, Marzieh</creator><creator>Zsurzsan, Tiberiu-Gabriel</creator><creator>Andersen, Michael A. 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E. ; Zhang, Zhe</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c336t-3a896ebf7e9785ed684755c3613fd3415a8a729c7c797d5944914b341220f6683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Circuit design</topic><topic>Circuit faults</topic><topic>Delay</topic><topic>Delay circuits</topic><topic>Delay effects</topic><topic>Delay lines</topic><topic>Digital to analog conversion</topic><topic>Digital to analog converters</topic><topic>Frequency control</topic><topic>Optimum delay line</topic><topic>Oscillators</topic><topic>Phase shift</topic><topic>piezoelectric transformer (PT)</topic><topic>Piezoelectricity</topic><topic>Power converters</topic><topic>Resonant frequency</topic><topic>self-oscillating loop</topic><topic>switch-mode power supply (SMPS)</topic><topic>Switches</topic><topic>Time lag</topic><topic>Transformers</topic><topic>zero-voltage switching (ZVS)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ekhtiari, Marzieh</creatorcontrib><creatorcontrib>Zsurzsan, Tiberiu-Gabriel</creatorcontrib><creatorcontrib>Andersen, Michael A. 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E.</au><au>Zhang, Zhe</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimum Phase Shift in the Self-Oscillating Loop for Piezoelectric-Transformer-Based Power Converters</atitle><jtitle>IEEE transactions on power electronics</jtitle><stitle>TPEL</stitle><date>2018-09-01</date><risdate>2018</risdate><volume>33</volume><issue>9</issue><spage>8101</spage><epage>8109</epage><pages>8101-8109</pages><issn>0885-8993</issn><eissn>1941-0107</eissn><coden>ITPEE8</coden><abstract>A new method is implemented in designing of self-oscillating loop for driving piezoelectric transformers (PT). The implemented method is based on combining both analog and digital control systems. Digitally controlled time delay through the self-oscillating loop results in very precise frequency control and ensures optimum operation of the PT in terms of gain and efficiency. Time delay is implemented digitally for the first time through a 16-b digital-to-analog converter in the self-oscillating loop. The new design of the delay circuit provides 45-ps time resolution, enabling fine-grained control of phase in the self-oscillating loop. This allows the control loop to dynamically follow frequency changes of the transformer in each resonant cycle. Ultimately, by selecting the optimum phase shift, maximum efficiency under the load and temperature condition is achievable.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPEL.2017.2771297</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0001-8407-3167</orcidid><orcidid>https://orcid.org/0000-0003-4271-870X</orcidid><orcidid>https://orcid.org/0000-0002-5612-0541</orcidid><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0885-8993 |
| ispartof | IEEE transactions on power electronics, 2018-09, Vol.33 (9), p.8101-8109 |
| issn | 0885-8993 1941-0107 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Circuit design Circuit faults Delay Delay circuits Delay effects Delay lines Digital to analog conversion Digital to analog converters Frequency control Optimum delay line Oscillators Phase shift piezoelectric transformer (PT) Piezoelectricity Power converters Resonant frequency self-oscillating loop switch-mode power supply (SMPS) Switches Time lag Transformers zero-voltage switching (ZVS) |
| title | Optimum Phase Shift in the Self-Oscillating Loop for Piezoelectric-Transformer-Based Power Converters |
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