![]() When a DC-DC converter is used, it will add stray capacitance between the control ground and the source terminal of the semiconductor power switch that the gate driver is controlling. ![]() As we shall see, however, none of these solutions is straightforward, and all of them inevitably increase the overall complexity and cost of the power module.Īt first sight, it may seem that providing an extra power rail presents few technical challenges, but the reality is rather different. Alternatively, a bootstrap circuit configuration is often used. These are sometimes supplied by dedicated DC-DC converters, which may be an off-the-shelf component or a discrete design. ![]() The full-bridge topology is a popular choice for power modules, but implementing it with conventional gate drivers requires the provision of two auxiliary high-side power rails.
0 Comments
Leave a Reply. |