Learn DC Transfer Function Using LTspice

DC Transfer

DC Transfer function The LTspice DC transfer function analysis calculates the low frequency gain and input impedance & output impedance of a circuit. Gain =output voltage/input voltage, Input impedance of a circuit=input voltage/input current, Output impedance of a circuit=output voltage/output current. Let’s have a look at LTspice DC Transfer function analysis with the help of a … Read more Learn DC Transfer Function Using LTspice

Your Guide To LTspice. Learn DC Operating Point

DC Operating Point

DC Operating Point DC Operating Point is a simple, but incredibly useful analysis. It will not give you anything to plot, but it will indicate voltages at all nodes and DC currents through all devices in the circuit. Biasing in electronics means establishing predetermined voltages or currents at various points of an electronic circuit for the … Read more Your Guide To LTspice. Learn DC Operating Point

Understanding LTspice : Noise Simulation

Noise Simulation

Noise Simulation Analysis Ltspice can perform frequency domain noise simulation analysis which takes into account shot, thermal and flicker (1/f) noise. The resulting noise density (in units of volts per square root hertz) can then be plotted to aid in circuit analysis and understanding. These noise calculations are performed at each frequency step and can be … Read more Understanding LTspice : Noise Simulation

LTspice DC Sweep Simplified For You!

DC Sweep

DC Sweep The DC sweep allows you to do various different sweeps of your Circuit to see how it responds to various conditions. For all the possible sweeps voltage, current you need to specify a start value, an end value, and the number of points you wish to calculate. For example you can sweep your circuit over … Read more LTspice DC Sweep Simplified For You!

LTspice Run And Probe A Circuit – AC Analysis

AC Analysis

AC Analysis

When doing an AC sweep of a source, the sections highlighted Below in the source configuration window are relevant. The AC analysis allows you to plot magnitude and/or phase versus frequency for different inputs in your circuit.

Type of Sweep In the AC analysis menu you have the choice of three types of analysis:

  • Linear,
  • Octave and
  • Decade.

These three choices describe the X-axis scaling which will be produced in probe. For example, if you choose decade then a sample of your X-axis might be 10Hz, 1kHz, 100kHz, 10MHz, etc…. Therefore if you want to see how your circuit reacts over a very large range of frequencies choose the decade option.

You now have to specify at how many points you want LTspice to calculate frequencies, and what the start and end frequency will be. That is, over what range of frequencies do you want to simulate your circuit.

  • Number of points
  • Start Frequency
  • Stop frequency

Read moreLTspice Run And Probe A Circuit – AC Analysis