发明名称 |
Varying switching frequency and period of a power supply controller |
摘要 |
An example integrated circuit controller for use in a switching power supply includes a pulse width modulation (PWM) circuit and a timing circuit. The PWM circuit controls a switch to regulate an output of the power supply in response to a switch current flowing through the switch and in response to a clock signal having a switching period. The timing circuit provides the clock signal and increases the switching period in response to an on time of the switch exceeding a threshold time. |
申请公布号 |
US8611116(B2) |
申请公布日期 |
2013.12.17 |
申请号 |
US201113193411 |
申请日期 |
2011.07.28 |
申请人 |
BAEURLE STEFAN;ZHANG GUANGCHAO DARSON;ODELL ARTHUR B.;MAO MINGMING;ZHANG MICHAEL YUE;DENG EDWARD;POWER INTEGRATIONS, INC. |
发明人 |
BAEURLE STEFAN;ZHANG GUANGCHAO DARSON;ODELL ARTHUR B.;MAO MINGMING;ZHANG MICHAEL YUE;DENG EDWARD |
分类号 |
H02M3/335;H02H7/122;H02M1/00;H02M7/757 |
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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