发明名称 |
SINGLE-PULSE RESONANT GATE DRIVER FOR DRIVING SWITCHES IN RESONANT ISOLATED CONVERTERS AND OTHER SYSTEMS |
摘要 |
A gate driving circuit includes a driving stage configured to receive an input signal and generate a gate drive signal for a gate of a transistor switch. The gate driving circuit also includes an LC circuit having an inductor and a gate capacitance of the transistor switch. The LC circuit is configured so that a pulse in the gate drive signal generates a ringing in the LC circuit at a resonance frequency of the LC circuit to transfer energy into and out of the gate capacitance of the transistor switch. A switch could selectively couple the gate of the transistor switch to ground in order to discharge the gate capacitance. A control circuit could be used to provide the input signal, and the control circuit could be configured to regulate a duty cycle of the gate drive signal by adjusting an off-time between consecutive pulses in the input signal.
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申请公布号 |
US2012249189(A1) |
申请公布日期 |
2012.10.04 |
申请号 |
US201113074815 |
申请日期 |
2011.03.29 |
申请人 |
FRATTINI GIOVANNI;MASSOLINI ROBERTO G.;GRANATO MAURIZIA;ANDERSON DAVID I.;NATIONAL SEMICONDUCTOR CORPORATION |
发明人 |
FRATTINI GIOVANNI;MASSOLINI ROBERTO G.;GRANATO MAURIZIA;ANDERSON DAVID I. |
分类号 |
H03K17/687 |
主分类号 |
H03K17/687 |
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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