发明名称 |
Power supply and method that maintains supply voltage in communications systems during a power supply interruption |
摘要 |
A power supply and associated method include a power supply converter having a power output and configured to provide a supply voltage through the power output to a communications device. A simplified boost circuit is connected to the power supply converter in parallel but isolated from the power supply converter's bulk input capacitance during normal operation. The boost circuit includes at least one power storage circuit and a charging circuit connected thereto and configured to charge and maintain the power storage circuit to a predetermined voltage and switch the power storage circuit into the power supply converter during an undervoltage condition to transfer the stored power from the power storage circuit to the power supply converter and maintain the supply voltage to the communications device connected thereto for a required hold-up time. |
申请公布号 |
US8247924(B1) |
申请公布日期 |
2012.08.21 |
申请号 |
US20100651589 |
申请日期 |
2010.01.04 |
申请人 |
ZOLLER JEREMY;ROBINSON STEVEN;CAMPBELL PETER;ADTRAN, INC. |
发明人 |
ZOLLER JEREMY;ROBINSON STEVEN;CAMPBELL PETER |
分类号 |
H02J9/00;H02J3/10;H04J3/00 |
主分类号 |
H02J9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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