However, it is true that the model used in the simulation uses the standard values of each parameter, so it is impossible to tell the truth as much as the real thing.

In this way, LTspice can confirm various results by simulation. The simulation circuit and results show that the 3.3V / 4A output from the 12V input is well regulated at 2 MHz. The LT8614 shown in the example is a synchronous buck regulator with a 4A output that can handle a wide range of input voltages from 3.4V to 42V. Pre-validation of circuit design.Īlso, simulation of a circuit designed with a Analog Devices product with LTmice allows us to realize and verify whether the operation as designed is feasible or prior to it. In this way, the theory can be confirmed again in waveform form, and the understanding can be further deepened. The cutoff frequency, which is the frequency at which the gain is reduced by -3dB, is 159Hz even with LTspice. If you actually simulate this using LTspice, it will look like this. I think you will learn from the textbook.Īssuming a low-pass filter with R = 10k Ω and C = 0.1 uF, it can be calculated.

You can use LTspice to simulate various electrical circuits, which is also useful for learning about electrical circuits.įor example, the cutoff frequency of the low-pass filter composed of RC is : Click “OK” after LTspice XVII is opened.Update after download can be performed by below「Sync Release」 'LTspiceXVII.exe' will be downloaded and install it to your PC.Choose 'LTspice（Download for Windows 7, 8 and 10）.To use LTspice, first download it from the official Analog Devices website. In this article, I will introduce the installation methods and the benefit of using LTspice based on my experience of using LTspice. It also has a circuit and symbol editor and a waveform viewer, along with a library of abundant passive parts, and has a macro model of approximately 2000 kinds of ADI products, which allows us to perform fast simulations such as steady-state detection, start-up transfer analysis, step response analysis, and efficiency calculation and power calculation. In particular, the simulation of the switching regulator is much faster than when using conventional SPICE simulators. The LTspice XVII, which is provided free by Analog Devices (formerly Linear Technology), is a high-performance SPICE-based simulator that can handle an unlimited number of nodes.

Ltspice download