www.ti.com Technical Article How to Select a MOSFET – Selection Tool Brett Barr In my last blog post, I talked about how difficult it can be to select the most appropriate field-effect transistor (FET) for switch-mode power supply (SMPS) applications. Predicting circuit performance from a ...
A current limiting resistor between the pin and gate prevents excessive I/O pin current draw. When using a MOSFET connected directly to a microcontroller output pin, the MOSFET gate should be pulled either high or low as needed using an external resistor to prevent floating gate logic and unwan...
Section 8.2.1.2 of the datasheet provides detailed guide for choosing the right MOSFET. Double check the parameters of the FETs are acceptable by using the equations given in the datasheet. The main parameter to check is the Qg (total gate charge) since it directly a...
The graphs in Figure 5 show two different behaviors of switching the MOSFET at two frequencies. The diagrams above refer to a switching frequency of 1 MHz and show the current signal on the load, the voltage on the gate, and the voltage of the PWM generator, respectively. As you can see...
eGaN FET的开关速度比硅基MOSFET更快,因此需要更仔细地考虑印刷电路板(PCB)布局设计以最小化寄生电感。寄生电感会导致过冲电压更高,同时减慢开关速度。本篇笔记将会探讨使用eGaN FET设计最佳功率级布局的关键步骤,来避免上述不良影响并最大化转换器性能。 寄生电感对开关行为的影响 如图1所示,三种寄生电感会限制开关性...
How to Choose ESC? To select the appropriate ESC for your FPV drone, ensure you understand the requirements: the ESC should be compatible with your battery’s voltage and should handle the current draw of your chosen motor and propeller combo at 100% throttle. ...
Choosing a motherboard requires careful consideration of multiple factors, from CPU compatibility to future upgrade paths. By following this guide, you can select a motherboard that not only meets your current needs but also provides room for future expansion. Remember that the best motherboard isn...
How to select <Selecting Transistors to Ensure Safe Operation> When a transistor is in operation it experiences electric and thermal loads. The life of a transistor will be short if such loads exceed the maximum tolerances which may break the transistor in a worst case scenario. To avoid this...
We have gave the provision to add the external gate to drain capacitance which can beused to improve the switching performance, stability, and noise immunity of MOSFET by reducing the effects of the internal Miller capacitance (see below eval board snap). ...
3. How to Select CapacitorsVoltage Rating Capacitor will get damage by a voltage stress. So, it is a must to consider the voltage in capacitor selection. You need to know the voltage level where the capacitor to be installed. A capacitor is most of the times is installed in parallel to ...