Recent content by PhysicsTest

  1. PhysicsTest

    RC circuit solution to a current pulse input

    TL;DR Summary: A current pulse of amplitude I is applied to a parallel RC combination, plot to scale waveforms of the current ic for the cases a.tp < RC b. tp = RC c. tp > RC Are the calculations and waveforms correct?
  2. PhysicsTest

    PWM sweep from 0 - 100% duty cycle in LTSpice

    I have lot of questions to understand and i do not want to start new threads, but related to the first question which i have to solve.
  3. PhysicsTest

    PWM sweep from 0 - 100% duty cycle in LTSpice

    But if i see the below website he gave an example for Capacitor Capacitor should i not follow the same for inductor?
  4. PhysicsTest

    PWM sweep from 0 - 100% duty cycle in LTSpice

    I am not sure why my results are not matching with circuit in post3 For t=2ms i used the below equation But the answer does not match at t=2ms it is around 2.4A. I am really confused not able to solve basic circuits.
  5. PhysicsTest

    PWM sweep from 0 - 100% duty cycle in LTSpice

    It is 50Hz and pwm frequency is 20khz. First step is only to change current in the inductor as a sinusoid by making the pwm duty changes.
  6. PhysicsTest

    PWM sweep from 0 - 100% duty cycle in LTSpice

    My idea is i want to generate a sine output current across inductor by varying the PWM duty. I want to simulate the same in LTspice. I am trying it.
  7. PhysicsTest

    PWM sweep from 0 - 100% duty cycle in LTSpice

    I want to check the inductor current as the PWM voltage source duty varies from 0% to 100% duty.
  8. PhysicsTest

    PWM sweep from 0 - 100% duty cycle in LTSpice

    How do i simulate the PWM signal with duty from 0% to 100% in Ltspice. I can generate a pwm signal with single duty.
  9. PhysicsTest

    Verifying the three currents add to 0

    Sorry i am not sure the asc file is not running, through dos i renamed to txt and attached.
  10. PhysicsTest

    Verifying the three currents add to 0

    Another simulation with different duty cycle. It adds upto 0.
  11. PhysicsTest

    Verifying the three currents add to 0

    I always think of simulating the inverter phase currents as a first step i have created the above circuit and i want to verify the currents at Neutral is 0. But it does not add to 0 as the result
  12. PhysicsTest

    Calculate the battery capacity for an electric vehicle based on power, time and output voltage

    Battery Capacity = Current * Time Power = 400 * 750 = 300000 Watts V*I = 300000 I = 300000/300 = 1000 Amps Battery Capacity = 1000 * 1 = 1000AH. Are the calculations correct? Why the battery capacity is defined in Amps?
  13. PhysicsTest

    How can the output power of a motor be controlled using an inverter?

    I am trying to decode and understand the output of the inverter I have doubt on the PIN, suppose the load is increasing on the motor then it can be done in two ways, suppose the initial Pout requirement is 1KW, it can be done either by controlling the voltage or current. Now how do I control...
  14. PhysicsTest

    Maximizing Power Transfer: An Analysis of Resistance and Efficiency

    Yes the differentiation is wrong and i get R = r. But what i do not understand is that the power delivered to resistor is called loss, that how is it useful?
  15. PhysicsTest

    Maximizing Power Transfer: An Analysis of Resistance and Efficiency

    I equated dP/dR to 0 and find the solution for R. Is the solution correct?
Back
Top