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Patent History
- ApplicationUS 08/787295 1997-01-24
- GrantedUS 5748457 1998-05-05
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granted patent: Family of zero voltage switching DC to DC converters
| Title | Family of zero voltage switching DC to DC converters |
|---|---|
| Granted Patent | US 5748457 |
| Granted Date | 1998-05-05 |
| Priority Date | 1997-01-24 US 08/787295 |
| Inventors | |
| Issue Date | 1998 |
| Citation | US Patent US 5748457. Washington, DC: US Patent and Trademark Office (USPTO), 1998 How to Cite? |
| Abstract | A family of power converter is invented. Each of these converter accomplishes zero voltage switching to minimize switching losses. The basic embodiment comprises of two switches connected across the input source, a series combination of inductor and capacitor is connected to the node joining the two switches. The switches are driven by asymmetrical driving pulses with variable duty cycle. The output comprises of an inductor and capacitor filter and diode combinations. This arrangement minimise output ripple. In order to further reduce dissipation switches are connected in parallel with output diodes and these switches operation in synchronization with the main switches. The basic embodiment can be modified to provide converter with negative output or boost output. The embodiment can also be modified for isolated converter with transformer in both the half bridge and full bridge circuit. |
| Persistent Identifier | http://hdl.handle.net/10722/210533 |
| References |
| DC Field | Value | Language |
|---|---|---|
| dc.date.accessioned | 2015-06-17T07:04:11Z | - |
| dc.date.available | 2015-06-17T07:04:11Z | - |
| dc.date.issued | 1998 | - |
| dc.identifier.citation | US Patent US 5748457. Washington, DC: US Patent and Trademark Office (USPTO), 1998 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/210533 | - |
| dc.description.abstract | A family of power converter is invented. Each of these converter accomplishes zero voltage switching to minimize switching losses. The basic embodiment comprises of two switches connected across the input source, a series combination of inductor and capacitor is connected to the node joining the two switches. The switches are driven by asymmetrical driving pulses with variable duty cycle. The output comprises of an inductor and capacitor filter and diode combinations. This arrangement minimise output ripple. In order to further reduce dissipation switches are connected in parallel with output diodes and these switches operation in synchronization with the main switches. The basic embodiment can be modified to provide converter with negative output or boost output. The embodiment can also be modified for isolated converter with transformer in both the half bridge and full bridge circuit. | - |
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| dc.relation.isreferencedby | U S6949912 (B2) 2005-09-27 | - |
| dc.relation.isreferencedby | US 2002125863 (A1) 2002-09-12 | - |
| dc.relation.isreferencedby | U S6501234 (B2) 2002-12-31 | - |
| dc.relation.isreferencedby | US 2004178781 (A1) 2004-09-16 | - |
| dc.relation.isreferencedby | U S7200017 (B2) 2007-04-03 | - |
| dc.relation.isreferencedby | US 2004130309 (A1) 2004-07-08 | - |
| dc.relation.isreferencedby | U S6906497 (B2) 2005-06-14 | - |
| dc.title | Family of zero voltage switching DC to DC converters | - |
| dc.type | Patent | - |
| dc.identifier.authority | PONG, MAN HAY=rp00163 | - |
| dc.description.nature | published_or_final_version | - |
| dc.contributor.inventor | PONG, MAN HAY | - |
| dc.contributor.inventor | POON, FRANKI NGAI KIT | - |
| patents.identifier.application | US 08/787295 | - |
| patents.identifier.granted | US 5748457 | - |
| patents.description.assignee | POON, FRANKI NGAI KIT, ; PONG, MAN HAY | - |
| patents.description.country | United States of America | - |
| patents.date.granted | 1998-05-05 | - |
| dc.relation.references | US 4814962 (A) 1989-03-21 | - |
| dc.relation.references | US 4860184 (A) 1989-08-22 | - |
| dc.relation.references | US 5057986 (A) 1991-10-15 | - |
| dc.relation.references | US 5615093 (A) 1997-03-25 | - |
| dc.relation.references | US 5638260 (A) 1997-06-10 | - |
| dc.relation.references | US 5402329 (A) 1995-03-28 | - |
| dc.relation.references | US 5539630 (A) 1996-07-23 | - |
| patents.identifier.hkutechid | EEE-1998-00041-1 | - |
| patents.date.application | 1997-01-24 | - |
| patents.date.priority | 1997-01-24 US 08/787295 | - |
| patents.description.cc | us | - |
| patents.description.kind | A | - |
| patents.type | Patent_granted | - |