发明名称 |
DISPOSITIVO PER EVITARE L'HARD-SWITCHING NEI CONVERTITORI RISONANTI E RELATIVO METODO. |
摘要 |
<p>A control device controls a switching circuit for a converter. The switching circuit comprises a half-bridge having a high-side transistor and a low-side transistor. The control device comprises a controller configured to control turning on and turning off said two transistors, so that a square-wave voltage is applied to the transformer primary. The controller is configured to start switching the half-bridge by turning on the low-side transistor. The control device comprises a first timer configure to initially turn on the low-side transistor for a duration given by a first time period useful for pre-charging a bootstrap capacitor couplable to the middle point of the half-bridge, and a second timer configured to keep the low-side transistor and the high-side transistor turned off for a second time period immediately following the first time period and having a longer duration than the first time period.</p> |
申请公布号 |
ITMI20110388(A1) |
申请公布日期 |
2012.09.12 |
申请号 |
IT2011MI00388 |
申请日期 |
2011.03.11 |
申请人 |
STMICROELECTRONICS S.R.L. |
发明人 |
ADRAGNA CLAUDIO;NOVELLI ALDO;SANTORO CHRISTIAN |
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