发明名称 |
THERMALLY COMPENSATED CURRENT SENSING OF INTRINSIC POWER CONVERTER ELEMENTS |
摘要 |
<p>A DC-to-DC converter includes one or more power switches, a pulse width modulation circuit for generating control pulses for the power switches, and an output inductor connected to the power switches. A thermally compensated current sensor is connected to an intrinsic current sensing element exhibiting a temperature-based parameter non-linearity. The thermally compensated current sensor has a temperature coefficient that substantially matches a temperature coefficient of an intrinsic power converter element used to measure current flow, thus linearizing the current measurement. Also, a current feedback loop circuit cooperates with the pulse width modulation circuit to control the power switches responsive to the thermally compensated current sensor.</p> |
申请公布号 |
EP1419570(A2) |
申请公布日期 |
2004.05.19 |
申请号 |
EP20020757255 |
申请日期 |
2002.08.20 |
申请人 |
INTERSIL AMERICAS INC. |
发明人 |
WALTERS, MICHAEL, M.;HARRIS, MATTHEW, B.;DUDUMAN, BOGDAN, M. |
分类号 |
G05F1/10;H02M3/156;H02M1/00;H02M3/155;H02M3/158;H02M3/28;(IPC1-7):H02M3/156 |
主分类号 |
G05F1/10 |
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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