TPSF12CX-MATHCAD
TPSF12C1/-Q1 和 TPSF12C3/-Q1 共模 AEF Mathcad 设计工具
TPSF12CX-MATHCAD
概述
此 Mathcad 文件用于预测电压检测电流注入 AEF 电路的稳定性（尤其是相对于 TI TPSF12C1/3/-Q1 系列共模 (CM) AEF IC 而言），并帮助选择元件。相关模型涵盖大多数寄生效应，可在仿真、工作台测量和微调之前用于快速检查环路增益和插入损耗。工作表适用于单相和三相交流系统，有助于通过两种方式输入 CM 扼流圈参数：
- CM 扼流圈行为模型结合使用
- 电阻和电容寄生效应 – 适用于铁氧体磁芯扼流圈
- 由三个并联 RL 电路组成的阶梯网络 – 适用于纳米晶扼流圈
- 使用测量的阻抗数据（幅度和相位）
特性
- 检查 CM 扼流圈阻抗与频率行为间的关系
- 选择用于补偿和阻尼网络的元件
- 基于无源滤波器元件优化环路增益以实现稳定性
- 检查启用和禁用 AEF 情况下的滤波器衰减性能
下载
TPSF12CX-MATHCAD — TPSF12C1/-Q1 and TPSF12C3/-Q1 common-mode AEF Mathcad design file
支持的产品和硬件
产品
电源滤波器 IC
硬件开发
评估板
TPSF12CX-MATHCAD — TPSF12C1/-Q1 and TPSF12C3/-Q1 common-mode AEF Mathcad design file
TPSF12C1/3 mathcad file
产品
电源滤波器 IC
硬件开发
评估板
发布信息
This Mathcad worksheet is offered to predict the stability of a voltage-sense, current-inject active EMI filter (AEF) circuit, in particular with respect to TI's TPSF12C1/3/-Q1 family of AEF ICs, and to assist with component selection. The model is inclusive of most parasitc effects and can be used as a quick check of the loop gain and insertion loss prior to simulation, bench measurement and fine tuning.
The worksheet functions for single- and 3-phase AC systems and facilitates two ways of entering the CM choke parameters:
1. Using an equivalent circuit model with (a) resistive and capacitive parasitics – suitable for ferrite-core chokes; (b) a ladder network of three parallel RL circuits -- suitable for nanocrystalline chokes
2. Using measured impedance data (magnitude and phase).
The worksheet is ideal for knowledge capture, unit-aware calculation reuse and for engineering collaboration amongst design, systems & application engineers.