# LTspicePowerSim **Repository Path**: worldking_admin/LTspicePowerSim ## Basic Information - **Project Name**: LTspicePowerSim - **Description**: 内部直接包含了 Type-II 补偿网络（FRA）方案 和峰值电流模式 Buck 变换器（Peak Current Mode Buck）的 LTspice 仿真源文件，其内置的 FRA 模块能直接让你在 LTspice 中扫描出整流环路的频域曲线（波特图） - **Primary Language**: Unknown - **License**: MIT - **Default Branch**: main - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 0 - **Forks**: 0 - **Created**: 2026-09-02 - **Last Updated**: 2026-09-02 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README

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# LTspicePowerSim LTspicePowerSim is a Simulink-like power electronics simulation environment built on LTspice. It provides a library of reusable circuit-level models together with extensive example circuits, making power electronics simulation easier and more accessible for engineers and researchers. ## Features✨ - **Optimized Models for Convergence**: Includes circuit models specifically designed to enhance simulation convergence. - **Transparent Model Definitions**: All models are defined using LTspice schematic files (.asc), allowing users to view and edit the circuits directly as needed. - **Extensive example circuits**: A wide range of example circuits covering DC-DC converters, resonant converters, Totem-Pole PFC, motor drivers, battery charger, and digitally controlled power stages. ## Symbols🧩 ![LTspicePowerSim custom symbols for power electronics schematics](./example/00_Symbols/Symbols.png) ## Example Screen Shot🖼️ ### Type-II Compensator (FRA) ![LTspice schematic: Type-II compensator for DC-DC converter loop stability (FRA)](./example/01_ControlAndCompensation/01_AnalogCompensation/TYPE2_FRA/TYPE2_FRA.png) ### Peak Current Mode Buck Converter (Current-Mode Control) ![LTspice schematic: Peak current mode buck converter (PCM control)](./example/02_DC_DC_Converters/01_BuckFamily/BUCK_PCM/BUCK_PCM.png) ### Peak Current Mode Boost Converter (Current-Mode Control) ![LTspice schematic: Peak current mode boost converter (current-mode control)](./example/02_DC_DC_Converters/02_Boost_BuckBoost/BOOST_PCM/BOOST_PCM.png) ### CCCV Buck Converter for Battery Charging (CC/CV control) ![LTspice schematic: CCCV buck converter for battery charging (CC/CV control)](./example/06_BatteryAndEnergyStorage/01_BatteryModels/BUCK_CCCV/BUCK_CCCV.png) ### Boundary Conduction Mode Flyback Converter (BCM / CrCM) ![LTspice schematic: Boundary conduction mode flyback converter (BCM / CrCM)](./example/03_ResonantAndIsolatedConverters/00_IsolatedBasics/FLYBACK/FLYBACK.png) ### Phase-Shift Full-Bridge Converter (PSFB with ZVS) ![LTspice schematic: Phase-shift full-bridge converter with ZVS (PSFB)](./example/03_ResonantAndIsolatedConverters/01_PhaseShiftedAndResonant/PSFB/PSFB.png) ### LLC Resonant Converter (Frequency Control) ![LTspice schematic: LLC resonant converter (gain curve and frequency control)](./example/03_ResonantAndIsolatedConverters/01_PhaseShiftedAndResonant/LLC/LLC.png) ### Single-Phase Totem-Pole PFC (2-Phase Interleaved) ![LTspice schematic: Single-phase totem-pole PFC (2-phase interleaved bridgeless)](./example/04_PowerFactorCorrection/01_SinglePhaseTotemPole/1Ph-TTP-PFC_2ITLV/1Ph-TTP-PFC_2ITLV.png) ### Single-Phase 4-Level Totem-Pole PFC ![LTspice schematic: Single-phase 4-level totem-pole PFC (bridgeless topology)](./example/04_PowerFactorCorrection/01_SinglePhaseTotemPole/1Ph-4LvTTP-PFC/1Ph-4LvTTP-PFC.png) ### Three-Phase Totem-Pole PFC (VOC + SVPWM Control) ![LTspice schematic: Three-phase totem-pole PFC using VOC and SVPWM control](./example/04_PowerFactorCorrection/02_ThreePhaseTotemPole/3Ph-TTP-PFC_VOC_SVPWM/3Ph-TTP-PFC_VOC_SVPWM.png) ### Discrete-Time PID Controller (Z-Domain FRA) ![LTspice schematic: Discrete-time PID controller (z-domain FRA analysis)](./example/01_ControlAndCompensation/02_DigitalCompensation/zPID_FRA/zPID_FRA.png) ### Discrete-Time Voltage-Mode Buck Converter (Digital Control) ![LTspice schematic: Discrete-time voltage-mode buck converter (digital control)](./example/02_DC_DC_Converters/01_BuckFamily/BUCK_VM_discrete/BUCK_VM_discrete.png) ### Two-Phase Stepper Motor Control using FOC ![LTspice schematic: Two-phase stepper motor control using field-oriented control (FOC)](./example/05_MotorDriveAndControl/01_StepperMotorDrives/STEP2PH_FOC/STEP2PH_FOC.png) ### Neural-Network Controlled Buck Converter using [pytorch2ltspice](https://github.com/kosokno/pytorch2ltspice.git) ![LTspice schematic: Neural-network-controlled buck converter (LTspice and PyTorch)](./img/NN_BUCK_VM.png)
>**More Examples Available!** ➡️ [**Go to Full Gallery 🖼️**](./Gallery.md)
## Getting Started💡 ### Prerequisites To use LTspicePowerSim, you need to have the following installed: 1. [LTspice](https://www.analog.com/en/design-center/design-tools-and-calculators/ltspice-simulator.html) – A high-performance SPICE simulation software. 2. Windows or macOS – The steps below cover installation for both operating systems. ### Model Installation (Windows) - Copy the contents of the `sym\PowerSim` folder from this repository to: ``` For LTspice 24.0.12 or earlier C:\Users\\AppData\Local\LTspice\lib\sym\PowerSim For LTspice 24.1.0 and up C:\Users\\Documents\LTspice\lib\sym\PowerSim ``` - Replace `` with your username. - Or you can use following batch files in the `bat` folders. | File Name | Description | |------------------------|-----------------------------------------------------------------------------| | `install.bat` | Copies the model files into the LTspice folder. | | `clean.bat` | Removes all copied files from the LTspice folder. | | `open_install_folder.bat` | Opens the LTspice directory where the files are installed. | > **Note:** > Updated batch files to follow 24.1.0 onwards while keeping old ones in "old(-24.0.12)" folder. - For LTspice 24.1.0 and up you also need to set the path for the PowerSim folder to be able to open the example files correctly. Just go to **Tools** > **Settings** and add the path as shown below. ![LTspice setting: add PowerSim symbol search path](./img/SearchPathSetting.png) ### Model Installation (macOS) - Copy the contents of the `sym\PowerSim` folder from this repository to: ``` /Users//Library/Application Support/LTspice/lib/ ``` - Replace `` with your username. ## Tips💡 - **Simulation Convergence** - In most cases, simulations run stably with: ```spice .options solver="norm" <-- Other option: "alt" .options method="gear" <-- Other option:"trap", "modtrap" ``` Try other option if the simulation does not converge.
The `.options solver` directive is available starting from **LTspice v24.1.0**. - If convergence issues still occur, add: ```spice .options debugtran ``` This helps identify which devices or nodes are causing difficulties in convergence. The `.options debugtran` directive is also supported from **v24.1.0**.