仿真、硬件和系统设计工具论坛 - 最近的话题

LMR51635: LMR51635开关频率滤除

jingkai ma — Wed, 24 Jun 2026 09:16:48 GMT

Part Number: LMR51635

我使用LMR51635电感为3.3uH,连接退耦电容量为33uF，会产生一个21.3KHz的开关频率，请问如何设计可以滤除这个开关频率

PSPICE-FOR-TI: PSpice for TI 设备超限，申请解绑全部旧设备

user5235104 — Wed, 17 Jun 2026 03:04:48 GMT

你好，我的myTI注册邮箱：
现在安装PSpice for TI提示：已达到并发设备访问限制，太多设备尝试使用相同访问密钥连接。
之前在多台旧电脑安装过该软件，旧电脑已经不再使用，麻烦帮我清空该账号下所有已绑定设备授权，我只需要在当前这一台新电脑安装使用，感谢协助！

PSPICE-FOR-TI: PSpice for TI 设备超限，申请解绑全部旧设备

user5235104 — Wed, 17 Jun 2026 02:36:50 GMT

Part Number: PSPICE-FOR-TI

TMS320F28379D: TMS320F28379D 的JTAG接口定义

bihui peng — Tue, 16 Jun 2026 08:19:30 GMT

Part Number: TMS320F28379D

TMS320F28379D 的JTAG接口是按规格书中的接口定义还是按常规调试工具板上的定义

PSPICE-FOR-TI: UC1901-SP的PSpice模型

TonyLee — Mon, 15 Jun 2026 14:46:13 GMT

Part Number: PSPICE-FOR-TI
Other Parts Discussed in Thread: UC1901

是否提供UC1901隔离反馈控制器的Pspcie 瞬态模型？目前网站只有其平均模型，在以下帖子中又看到早期的瞬态模型，但是网站上没找到？https://e2echina.ti.com/support/machine-translation/mt-power-management/f/mt-power-management-forum/327047/uc1901-see

PSPICE-FOR-TI: PSPICE-FOR-TI: 换了新电脑安装软件时候提示You have reached the concurrent device access limit. Too many devices are attempting to connect with the same access key。

TonyLee — Mon, 15 Jun 2026 14:41:21 GMT

Part Number: PSPICE-FOR-TI

在新电脑安装Pspice for TI ,提示PSPICE-FOR-TI: You have reached the concurrent device access limit. Too many devices are attempting to connect with the same access key.旧电脑已不再使用，如何解决这个问题？

TPS4816-Q1-CALC: TPS4811-Q1 Pspice import to Tina error

Junli Zhang — Mon, 15 Jun 2026 14:23:18 GMT

Part Number: TPS4816-Q1-CALC
Other Parts Discussed in Thread: TPS4811-Q1

TPS4811-Q1 Pspice import to Tina error

PSPICE-FOR-TI: 使用PSpice-for-TI时，用内带的TI的电源芯片进行仿真操作时，仿真结果异常，好多都不能正常仿真。When using PSpice-for-TI to simulate with TI's built-in power supply ICs, the simulation results are abnorm

Zhong wen — Mon, 15 Jun 2026 13:16:39 GMT

Part Number: PSPICE-FOR-TI

TPS92641EVM: Test TPS92641EVM about LED shunt dimming issue

Moreten Liao — Mon, 15 Jun 2026 04:03:52 GMT

Part Number: TPS92641EVM

Hi, TI experts!

I am using the TPS92641EVM to conduct a LED shunt dimming test.

The test conditions and setup are as follows:

(1)Input Voltage: 43.5V,LED Load: 32V / 1A

(2)Connection: 10-meter cable is connected between the LED and the TPS92641EVM.

(3)SDIM Input: 100:1 PWM signal (f = 2 kHz)

(4)Shunt MOSFET: FKD4014 driven by the SDRV pin

Currently, I am unable to successfully achieve a target current pulse width of 5us at 200 mA.

Could you please help check my setup and advise on what modifications or adjustments are required to resolve this issue?

Thank you!

PSPICE-FOR-TI: Failed to place symbol instance for model 'S' because library 'analog' does not exist.

du jiangfeng — Fri, 12 Jun 2026 01:35:10 GMT

Part Number: PSPICE-FOR-TI

您好，我在添加基本元器件的时候提示库不存在，请问如何解决该问题或者如何重新添加库

TINA-TI_SIMP_CHINESE: LMR14050器件模型导入TINA时报错

Jerry Ma — Tue, 09 Jun 2026 07:39:58 GMT

Part Number: TINA-TI

你好，我在官网下载了未加密的模型https://www.ti.com.cn/cn/lit/zip/snvm923，想要在TINA进行仿真，但导入时报错“在定义之前未定义参数或可用函数”，截图如下：

请问我该如何操作解决上述问题，谢谢！

我的TINA版本如下：

DLP4710EVM-LC: I connected the power, then connected the USB. D57 is constantly on. After I pressed W21, D57 -> D56 flashes -> D57, but the projector still does not turn on. T

shuang yang — Tue, 09 Jun 2026 03:28:55 GMT

Part Number: DLP4710EVM-LC

EVM Status: Connected, Powered Off
Using a multimeter to measure, when SW21 is pressed, the 1.8V and 1.1V voltages reach a reasonable range, but they immediately drop to 0.

PSPICE-FOR-TI: Pspice Reached Device Access Limit

U Y — Mon, 08 Jun 2026 14:09:51 GMT

Part Number: PSPICE-FOR-TI

I recently reinstalled my OS, and when trying to reinstall PSpice for TI, I received the following error: "You have reached the concurrent device access limit. Too many devices are attempting to connect with the same access key."

The registered devices are from previous OS installations that no longer exist. Please clear these old device registrations so I can proceed with the installation.

PSPICE-FOR-TI: Pspice for TI concurrent device limit reached

Thomas Gordon — Fri, 05 Jun 2026 07:47:57 GMT

Part Number: PSPICE-FOR-TI

Hi,

A device of mine is no longer in use, I'd like to revoke the Pspice access key register for this device. Thanks!

The hostname of this device is DESKTOP-FSG9397.

MSPM0-SDK: M0 SDK下载被拒

xiang gao — Tue, 02 Jun 2026 15:49:38 GMT

Part Number: MSPM0-SDK

无法下载M0SDK，一点下载就被拒，不知道是不是之前选错什么了。

IWRL6432BOOST: 检测到设备但是底下几个选项都是disconnected

Zhiyu Zhang — Tue, 02 Jun 2026 04:01:10 GMT

Part Number: IWRL6432BOOST
Other Parts Discussed in Thread: DCA1000EVM, IWRL6432, UNIFLASH

BQ25570EVM-206: 为什么BQ25570的评估板的原理图上有那么多的1×2P排针，为什么接地没有分开，没有AGND与PGND隔离吗？

YAZHOU SHI — Mon, 01 Jun 2026 07:02:49 GMT

Part Number: BQ25570EVM-206
Other Parts Discussed in Thread: BQ25570

为什么BQ25570的评估板的原理图上有那么多的1×2P排针，为什么接地没有分开，没有AGND与PGND隔离吗？

Figure 1里的J1 J3-4 J6-7 J9-10 J12-13，这有什么作用，不是多此一举吗？

C8-10在这里起什么作用？他们的Value=DNP，这是多少的数值呀？

Figure 13里的JP3的VSTOR网络的线走到上面，好像断了，不知道接到哪里？

还有关于跳线具体怎么做

TAS67524Q1EVM-DOC-CERT: 下載PPC3軟件拒絕訪問

bitang lin — Fri, 29 May 2026 02:18:12 GMT

Part Number: TAS67524Q1EVM-DOC-CERT

已通過5805-SW安全宙審查,仍無法下載

SYSCONFIG: CCS12.8的sysconfig报错：Unable to initialize the browser engine.

shifan zhu — Tue, 26 May 2026 06:59:54 GMT

Part Number: SYSCONFIG
Other Parts Discussed in Thread: C2000WARE

安装好CCS12.8、C2000Ware6.0.0.00以及sysconfig1.24后，从C2000Ware中打开样例的sysconfig文件报错，错误原文为：
Unexpected error encountered when opening the file! Please make sure the file is within the context of a valid and opened CCS Project. If the project has errors, these may be preventing this file from opening.
java.lang.RuntimeException: Unable to initialize the browser engine. For Linux host, please check the dependencies are installed by running the 'ldd' command for the libraries in this folder E:\CCS12.8\ccs\eclipse\configuration\.jxbrowser.bin\7.29.

TINA-TI_SIMP_CHINESE: 如图，如何使用TINA进行蔡氏电路的仿真？

LingTong Kong — Sun, 24 May 2026 07:08:00 GMT

Part Number: TINA-TI

PSPICE-FOR-TI: 关于TS3DV642-Q1 S参数问题

SHAOBO XU — Fri, 22 May 2026 12:45:17 GMT

Part Number: PSPICE-FOR-TI
Other Parts Discussed in Thread: TS3DV642

Hi TI support ,

I need the Touchstone S‑parameter (.snp) file of TS3DV642 / TS3DV642‑Q1(TS3DV642RUARQ1) for high‑speed SI simulation. Please share the full‑port S‑parameter model, thank you very much.

Best regards

PSPICE-FOR-TI: 我需要TS3DV642-Q1 S参数来进行仿真

SHAOBO XU — Fri, 22 May 2026 12:42:47 GMT

Part Number: PSPICE-FOR-TI
Other Parts Discussed in Thread: TS3DV642

MSPM0-SDK: 无法下载

zhu zhu — Fri, 22 May 2026 11:26:44 GMT

Part Number: MSPM0-SDK

无法下载

C2000WARE: CLB Counter Block 复位信号疑问

user6172173 — Thu, 21 May 2026 06:50:27 GMT

Part Number: C2000WARE
Other Parts Discussed in Thread: SYSCONFIG,

1.根据技术手册描述Reset为高电平有效。

" RESET: This is the highest priority input and takes precedence over all other inputs. The input is level sensitive and as long as the input remains high, the counter resets to 0 on the next clock cycle."

2.Counter配置如下：

3.查看仿真文件结果为Reset低电平有效，高电平计数器运行。

4.C2000Ware版本为：C2000Ware_5_02_00_00；Sysconfig版本为：sysconfig_1.25.0；CCS版本为：Version: 12.7.1.00001 ；编译器版本为：v22.6.1.LTS

PSPICE-FOR-TI: PSpice for TI setup unsuccessful

JIAJUN FU — Thu, 21 May 2026 01:07:43 GMT

Part Number: PSPICE-FOR-TI

A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available.