发明名称 |
AC-TO-DC VOLTAGE CONVERSION AND CHARGING CIRCUITRY |
摘要 |
Voltage conversion and charging circuitry and method for converting an alternating current (AC) voltage to a direct current (DC) voltage for charging an energy storage element (e.g., battery or supercapacitor). An output capacitance, which is initially charged quickly for use in the slower charging of a battery, also maintains the charge on an input capacitance which provides power for the charging control circuitry during such charging process. In accordance with a preferred embodiment, the DC charging current is substantially constant during a first time interval following which the DC charging power is substantially constant during a second time interval. |
申请公布号 |
WO2010019865(A2) |
申请公布日期 |
2010.02.18 |
申请号 |
WO2009US53861 |
申请日期 |
2009.08.14 |
申请人 |
NATIONAL SEMICONDUCTOR CORPORATION |
发明人 |
BAHAI, AHMAD;DJABBARI, AII;LIU, QINGGUO;ZHANG, JIANHUI |
分类号 |
H02M3/28;H02J7/00 |
主分类号 |
H02M3/28 |
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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