发明名称 |
SWITCHING REGULATOR WITH INPUT CURRENT LIMITING CAPABILITIES |
摘要 |
A switching regulator includes a capacitor, a charge control circuit, a discharge detector, a switch circuit, and a feedback circuit. The charge control circuit charges and discharges the capacitor. The discharge detector has an input coupled to the capacitor to detect when the capacitor has discharged to a predetermined level to indicate an over-current condition. The switch circuit is coupled to receive an input voltage. The switch circuit is made conductive and non conductive by a switching signal for supplying an output voltage at a regulated voltage level. The duty cycle of the switching signal is reduced in response to an indication of an over-current condition. The feedback circuit is for controlling a discharge rate of the capacitor. |
申请公布号 |
EP2583376(A2) |
申请公布日期 |
2013.04.24 |
申请号 |
EP20110796147 |
申请日期 |
2011.05.27 |
申请人 |
FREESCALE SEMICONDUCTOR, INC. |
发明人 |
MILLER, IRA G.;GONCALVES, RICARDO TAKASE;PIGOTT, JOHN M. |
分类号 |
H02M3/158;G05F1/10;H02M1/00;H02M1/32;H02M3/07 |
主分类号 |
H02M3/158 |
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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