发明名称 |
Clamping circuit and method for DMOS drivers |
摘要 |
A transconductance circuit (16) and method for protecting an H-bridge power circuit (10) that provides power to a load that includes an inductive component (14) connected between one side of the inductive component (14) and a gate (25) of a low side transistor (24) of the H-bridge (10). The transconductance circuit (16) operates to pull current from the inductive component (14) to ground (30) when the inductive load (14) sources current to a body diode of the high side transistor (20). The transconductance circuit (16) creates a regulated voltage to the gate (25) of the low side transistor (24) to cause the low side transistor (24) to conduct the current away in a regulated manner from the inductor (14) and the high side transistor (20) to ground (30).
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申请公布号 |
US6798271(B2) |
申请公布日期 |
2004.09.28 |
申请号 |
US20030249398 |
申请日期 |
2003.04.04 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
SWIZE GREGORY EMIL |
分类号 |
H03K17/0814;H03K17/687;(IPC1-7):H03K17/56 |
主分类号 |
H03K17/0814 |
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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