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  1. Electric1

    Open Collector Wired OR logic

    I always come across the term open collector is used for Wired OR logic, i tried creating a circuit to understand better Is the above configuration i have drawn is wired or logic? When i make the port high the line is pulled to 3.3V? Edit: There is ground connected for micro controller B as well.
  2. Electric1

    Max Current and Shorted Current

    I am trying to solve the above circuit two parameters to be found out are The maximum current is IL(max) = 0.7V / 1 Ohm = 0.7A. My doubt is the shorted current is same as max current? Does it mean that RL=0 and no current flows through R2 and R3 , V-=0V, and the voltage at V- will never be...
  3. Electric1

    Buck converter calculation does not match with LTspice results

    The below is the problem The formulas as per the textbook are I followed the above formulae and the calculations are as below To verify i did the LTspice simulation but the values are different the current is getting discontinuous, the output voltage is only 11V. What is the reason?
  4. Electric1

    Analysis of Op-amp circuit

    I am analyzing the below op-amp circuit. my main worry is with the R5 resistor, in absence of R5 and Vin = 10V, Vout= 2.5V(1+10kOhm/30kOhm) = 3.33V which matches exactly with LTspice, but with R5 in place the voltage at inverting and noninverting is the same and current through R5 is 0 hence...
  5. Electric1

    Opamp circuit clarification

    I am trying to analyze the below Opamp circuit I have picked a random opamp in Ltspice. I can understand that it is non inverting amplifier and gain is Vout = V1(1 + (R1 || R3) / R2) Vout = 2mV * (1 + 2.5KOhm/660KOhm) = 2mV but i get result of 9mV, why? If i simulate without R4 i get the...
  6. Electric1

    Calculation of Gate Resistance

    I tried to follow the below article from Infineon for gate resistance calculation GateResistance for method1 based on the switching time, my doubt is for the gate driver in case 2 Mosfets are connected instead of 1 Mosfet will gate resistance will increase or decrease and by what factor will it...
  7. Electric1

    Oscilloscope samples/sec and memory depth parameter

    Please confirm me on the oscilloscope settings is correct or not, suppose the maximum frequency of the hall signal is 300 Hz which correspond to 1/300Hz = 3ms. As the frequency of the signal is less if i keep the oscilloscope settings to 100K samples/sec which according to me 1/100,000 = 10uS...
  8. Electric1

    RMS and Average Value Difference

    For the above waveform i can calculate the Average value and the RMS value as below Avg Voltage = 1/0.1*(10*0.07 + 0 * 0.03)=0.7/0.1 = 7 V Avg Current = 1/0.1*(0*0.05 + 4 * 0.05) = 2 A Rms Voltage = 10*Sqrt(D) = 10*Sqrt(0.7) = 8.3V RMS Current = 4*Sqrt(0.5) = 2.82A Now my main question is...
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