B1507A Power Device Capacitance Analyzer
Do you understand the full impact of device capacitance on increasing switching power supply frequencies?
In general, higher switching frequencies allow power electronics circuits to be physically smaller and take up less area. However, as frequency increases the device on-resistance (Ron) becomes less important, and switching loss and driving loss become the dominant factors that determine overall circuit power loss.A power device's capacitance characteristics (which are non-linear) are key parameters that help determine both switching and driving losses. Reverse transfer capacitance (Crss) and gate resistance (Rg) determine the switching speed, while the input capacitance (Ciss) determines the gate driving condition. In addition, the output capacitance (Coss) is also a key parameter in determining the switching loss for a resonant converter. Therefore, it has become more important than ever to accurately evaluate these parameters when designing power conversion circuits.
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Supplier and Product Introduction |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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December 1, 2017 |
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5991-4657EN |
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1.9 MB |
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