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circuit simulation
OrCAD PSpice is capable of simulating circuits. It has a relatively rich component library and circuit Spice models, and can easily carry out four commonly used simulations. Time domain transient analysis (Time Domain): It is convenient to observe the waveforms at different times. By adding an excitation source, you can easily observe the waveforms at each point, which is equivalent to the function of an oscilloscope.
DC sweep analysis (DC Sweep): It is possible to change a DC flow and observe its influence on the output. AC sweep parameter analysis: observe the frequency response, amplitude-frequency characteristics, etc. of the circuit.
DC bias point analysis (Bias Point): It is convenient to observe the DC operating point of the circuit.
TINA-TI is jointly launched by TI and TINA. The software is small in size and easy to install. It can be downloaded from TI's official website.
A lot of TI devices are integrated inside, and there are also many chip models available for download on TI's official website. It is relatively simple and convenient to use. With the tutorial launched by TI, you can quickly master the usage method and simulate most circuit designs. Moreover, TINA-TI does not require very high computer configuration, and most of the simulation speeds are relatively fast, and the results are relatively accurate.
TINA-TI can also analyze the noise of the operational amplifier , and can graphically display the equivalent output voltage noise density of the amplifier, the effective value of the total output noise voltage, and the signal-to-noise ratio. It can be conveniently used to evaluate the noise performance of the amplifier.
LT-spice , ADI company, is based on the spice model. Integrates high-performance SPICE simulation software, schematic diagram acquisition and waveform viewer, integrates enhanced functions and models, and simplifies the simulation of analog circuits. Macromodels are also included in the LTspice download for most ADI switching regulators, amplifiers, and device libraries for general circuit simulation. The simulation speed is very fast, and the waveform of the switching power supply can be viewed in a few minutes.
Multisim is also based on the spice model. It is suitable for learning analog circuits and circuit analysis principles. Its internal rich test and measurement instruments can simulate experiments anytime and anywhere, which is very beneficial to understand the working principle of circuits. The above model is universal and supports various commonly used devices. Moreover, the real-time performance of Multisim simulation is relatively strong, and there are some tools such as oscilloscopes to assist, so that the simulation results can be seen quickly and more intuitively.
power emulation
Simplis : Professional power simulation software with powerful functions. It is a little more complicated than TINA-TI, but it is also a software that can be quickly started. Can simulate transient response, steady-state working conditions, loop response, especially Bode diagram simulation, can quickly and conveniently obtain Bode diagram simulation results of the control loop, and can greatly reduce loop design calculations when used with Mathcad workload.
For more detailed choices, refer to this introduction:
How to choose a power supply development simulation tool?
clock design
ADIsimCLK is a design tool developed specifically for Analog Devices' family of ultralow jitter clock distribution and clock generation products. Whether in wireless infrastructure, instrumentation, networking, broadband, automatic test equipment, or other applications requiring predictable clock performance, ADlsimCLK can help you quickly develop, evaluate, and optimize designs.
The ADIsimPLL Design Tool is a comprehensive yet easy-to-use PLL synthesizer design and simulation tool. It simulates all important nonlinear effects that can affect PLL performance, including phase noise, fractional-N spurs, and backlash pulses. This tool eliminates time-consuming duplication of effort during PLL/synthesizer development.
ADlsimDDS (Direct Digital Synthesis) uses mathematical formulas to simulate and display the overall performance of selected devices. This tool calculates the required FTW based on the reference clock frequency and the desired output frequency.
Summarize
The simulation software is only to assist us to learn and understand the power system, and cannot replace the test results of the actual system. Mastering any of the above simulation software will benefit us endlessly, and after learning one, it is easy to switch to another, the difference lies in some library files and simulation setting methods and operations.
If you are just starting to get in touch with simulation, it is recommended to use Multisim, the model here is enough. If you use TI and ADI chips for development, it is recommended to use their respective simulation tools.