发明名称 |
DC-DC converter functioning in pulse skipping mode under low load conditions |
摘要 |
<p>Switching losses in a DC-to-DC converter idling in a pulse-skipping mode are reduced by inhibiting any intervening turn-off command by a PWM control loop of the converter for as long as the current through the inductor of the converter remains below a minimum threshold value set by a dedicated comparator. The method is implemented by employing a comparator with a certain hysteresis and by logically masking the switching to a logic "0" of a high frequency clock (switching) signal of the converter for the entire period of time the current in the inductor remains below the minimum threshold. <IMAGE></p> |
申请公布号 |
EP0709948(A1) |
申请公布日期 |
1996.05.01 |
申请号 |
EP19940830507 |
申请日期 |
1994.10.27 |
申请人 |
STMICROELECTRONICS S.R.L. |
发明人 |
SANDRI, PAOLO;BORGHI, MARIA ROSA;RIGAZIO, LUCA |
分类号 |
H02M3/156;(IPC1-7):H02M3/00 |
主分类号 |
H02M3/156 |
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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