发明名称 |
SWITCHED MODE POWER SUPPLY WITH A SIMPLIFIED START-UP SUPPLY |
摘要 |
A switched mode power supply (SMPS) is disclosed in which a simple primary side controller is used to send a single pulse of energy to the secondary side to switch on an output voltage controller. The pulse is sent across the main power train and a filtering arrangement is provided on the secondary side to minimise the energy at the output of the SMPS while maximising the energy supplied to the output voltage controller. Advantageously, the SMPS is configured such that the maximum amount of energy transferred from the primary side to the secondary side during a start-up operation is inherently limited. Protection against short circuit conditions and malfunctions is therefore provided without requiring complicated circuitry. |
申请公布号 |
EP2697900(A1) |
申请公布日期 |
2014.02.19 |
申请号 |
EP20110714981 |
申请日期 |
2011.04.15 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
PERSSON, OSCAR;APPELBERG, MIKAEL;LESKOVEC, MARKO |
分类号 |
H02M3/335;H02M1/36 |
主分类号 |
H02M3/335 |
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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