分流电阻选择因素 1. 最小电流检测精度; 2. 最大电流功耗; 3. 尺寸与成本 01:34 精度: (放大器失调)电压应大于失调电压vos 03:16 功耗 04:22 综合考虑 计算功耗与精度 06:43阻值上限 1. 最大负载电流; 2. 满量程范围; 3. 增益 07:59电阻误差...
解決済み: i use 0.0005Ohm , the motor cannot drive. The sampled current value captured by freemaster is attached. when i use the 0.002Ohm resistor, the
How to Choose the Right Resistor(s) for Your Project Resistors are among the most common of all electronic components, but not all resistors are the same. Resistors are made of different materials and come in different types. Each has unique properties that makes it better suited for specific...
Select resistor resistance to achieve desired voltage drops and current limits in your circuit. 2. Identify Size Constraints Consider board space – smaller SMD sizes needed for high density layouts. Larger resistors can handle more power dissipation. 3. Choose Suitable Tolerance Tighter tolerance incre...
the voltage on CPU side to be 0.5V when pulled low, but the CPU will only recognize <0.4V as digital “0”. So they wonder if it’s okay to reduce R20, R21, R22,R23 to 50ohm. And how do we calculate the right resistor value in the circuit?
DC to AC converters for cars are devices that allow a car to run on AC power. They are used to conve
the decision process becomes a bit more complicated. There are thousands of microcontrollers on offer and it’s a daunting task trying to choose the right one. Often enough, there are plenty of options that are right for the job. There’s also plenty that aren’t right. The trick is find...
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The pulses on Gate was noticed but the driver was unable to run the motor. We had no idea what was the difference in pulses. It was difficult for us to identify which parameter could had been different here. We choose another mosfet with similar specifications and ...
To address the need for small-signal transient and steady state time-domain simulations of our power inductors and chokes, Coilcraft has developed measurement-based impedance models for LTspice. These are included in theCoilcraft LTspice inductor library. The impedance models use fixed value inductance...