2017年12月4日 · This is the datasheet of the driver IC I am working on (LM5112). Following is the application diagram of the module. Basically this is the GATE driver circuit for the MOSFET with PDM signal as the input. I am looking for how to calculate value of the MOSFET input resistor (R3) ? MOSFET input voltage (VDS) = 10V Output power required is 200W ...

2015年9月3日 · Can anybody help me understand, what exactly a high side and low side driver is? In which scenario would either of them be used?

2020年6月4日 · I know that there have been many posts on this topic, but I'm confused about calculating the gate current of a MOSFET. I have calculated the gate current as Igs = Qg/t. For example, I want to drive

2019年1月19日 · [From Question]: MOSFET transistor and normal transistor A MOSFET is a normal transistor - it's a Metal-Oxide-Semiconductor Field-Effect Transistor A BJT is another normal transistor - a Bipolar Junction Transistor The question itself doesn't make much sense in that regard. But lets assume for now you mean BJT when you say "normal".

2022年6月10日 · Note that reverse polarity (reverse voltage at the inputs driving current backwards) is different than load dumping (the load producing a voltage higher than the input driving current backwards). A diode protects from both, this does not.

2024年4月10日 · I am using a MOSFET as a low side switch. If I do not use a freewheeling diode to discharge the energy stored in the inductor, what is the numerical value of the spike cause at the intersection node of the inductor and the drain of the low side N-channel MOSFET when it is turned off? Is there an equation describing this? Diagram given below.

2023年10月9日 · It seems that unfortunately different manufacturers use slightly different notation. Usually V_DSS or V_DS (max) are the maximum allowable Drain-Source voltage according to manufacturer datasheet, the same for V_GS (max) but for Gate-Source voltage. BVdss would be the breakdown voltage and in general should be higher than the maximum allowable voltage.

2021年6月21日 · If the mosfet is fully on it has high current/low resisance and more power dissipation, but form many fets the Rdson is lower than 1Ω or in the mΩ range, so large currents will still dissipate heats that the package can handle. The problem when the gate voltage is somewhere in the middle, and the resistance in the mosfet is equal to the load.

2020年7月23日 · The comparator is just a simple MOSFET where the output is connected to VCC and drain and the V+ pin is connected to the gate of the MOSFET and the source is connected to the source of the MOSFET.

2022年3月18日 · As long as the gate-source voltage is correct, a MOSFET will conduct in either direction while "on". That is used in some analog switching circuits and also occasional power control circuits.