放大器

使用电流感应放大器最大程度地优化系统

提供保护、反馈控制和系统监控的电流感应解决方案

模拟输出

集成整个模拟信号处理并提供电压或电流输出

集成比较器

在负载电流超出阈值时提供简单的警报信号

功率/电流监控器

集成整个信号调节路径并利用标准 2 线数字接口

集成分流器

提供低漂移、高精度的集成型感应元件

特色技术资源

浏览电流和功率测量使用案例

15 个电流感应放大器入门短视频

特色 TI Designs 参考设计和电流感应放大器产品

特色 TI Designs 参考设计

太阳能 MPPT 充电控制器

针对太阳能电池板输入(相当于 12V 和 24V 电池板)而创建的 20A MPPT 太阳能充电控制器

带有线性压降补偿的汽车 USB 充电器参考设计

为评估和验证 USB 充电器提供详细数据

-48V 隔离式电信电流/电压/功率传感

可报告承载 -48V 的总线上的电流、电压和功率

用于确定绝缘电阻的泄漏电流测量

用于测量高达 100MΩ 绝缘电阻的参考解决方案

适用于汽车 LED 照明的 24W 升压和升压到电池参考设计

适用于汽车 LED 应用的 24W 高效 (94%) 低成本异步升压设计

TI 技术手册

浏览电流和功率测量使用案例。每本 TI 技术手册均包括问题分析、实施选项和相关产品等内容。

TI 技术手册
下载技术手册
器件

Current Sensing in an H-Bridge

An overview of benefits for the most common locations current sensing is measured in an H-Bridge

PDF INA240

Switching Power Supply Current Measurements

A review of the tradeoffs and benefits for the multiple locations current can be measured in a switching power supply

PDF INA240

Integrated, Current Sensing Analog-to-Digital Converter

Current and power monitoring using an improved, integrated current sensing specific analog-to-digital converter

PDF INA226

High-Side Drive, High-Side Solenoid Monitor With PWM Rejections

A functional use case highlighting the improvements measuring current offers in solenoid control

PDF

LMP8278Q-Q1

INA240

Monitoring Current for Multiple Out-of-Range Conditions

A functional use case outlining solutions to identify and handle multiple failure conditions in a system

PDF

INA302

INA303

Precision, Low-Side Current Measurement

A review of the tradeoffs and advantages of current sense amplifiers in a low-side current measurements

PDF

INA199

INA210

Integrating the Current Sensing Resistor

An overview on layout, accuracy and stability improvements when integrating the current sense resistor

PDF INA250

Bi-Directional, Low-Side Phase Current Sensing with Integrated Over-Current Detection

A functional use case illustrating configurations for motor protection using low-side current sensing

PDF INA303

Low-Drift, Precision, In-Line Motor Current Measurements With Enhanced PWM Rejection

A functional use case, targeted at motor applications, that outlines a range of solutions for measuring in-line phase current

PDF

LMP8601

INA240

Low-Drift, Low-Side Current Measurements for Three Phase Systems

A functional use case outlining possible configurations for measuring a motor's phase current, with a focus on low-side implementations

PDF INA301

Measuring Current To Detect Out-of-Range Conditions

An overview of the reasons and benefits of having overcurrent protection as part of any system

PDF

INA300

INA301

Precision Current Measurements on High Voltage Power Supply Rails

A review of the benefits of using a current sensing amplifier to measure on the high-side of the shunt resistor

PDF INA210

High-Side Motor Current Monitoring for Over-Current Protection

Current monitoring of the DC-Link supply rail for lower complexity motor design

PDF INA240

Integrating the Current Sensing Signal Path

Understanding the benefits and trade-offs for the different types of current measurement approaches

PDF

INA210

INA226

Expand allCollapse all

General Current & Power Monitoring Challenges

TI TechNotes
Download TechNotes
Devices
Measuring Current To Detect Out-of-Range Conditions PDF

INA300

INA301

Monitoring Current for Multiple Out-of-Range Conditions PDF

INA302

INA303

Precision, Low-Side Current Measurement PDF INA210
Integrating the Current Sensing Signal Path PDF INA226
Integrating the Current Sensing Resistor PDF

INA250

INA260

Improve Shunt Layout with Integrated Current Sense Resistor PDF

INA250

INA260

Integrated, Current Sensing Analog-to-Digital Converter PDF INA226
Op-Amp Current Sense Circuit Integration PDF INA180
Discrete Current Sensing vs. SOC Integrated Current Sensing Function PDF INA180
Energy & Power Monitoring
PDF INA233
Digital Interface for Power Monitors PDF INA233
Precision, Low-Side Current Measurement PDF INA199

High Voltage (100V+) Current & Power Monitoring Specific Challenges

TI TechNotes
Download TechNotes
Devices
Extend Common-mode Range for High Voltage Applications PDF INA226
Design Considerations for Dual DRV425 Bus Bar Application PDF DRV425

Motor/Solenoid Specific Challenges

TI TechNotes
Download TI TechNotes
Devices
High Precision, Low-Drift In-Line Motor Current Measurements PDF INA240
Low-Drift, Low-Side Current Measurements for Three Phase Systems PDF INA301
High-Side DC-Link Motor Current Monitoring for Over-Current Protection PDF

INA282

LMP8640

High-Side Drive, High-Side Solenoid Monitor With PWM Rejection PDF

INA240

LMP8640

Bi-Directional, Low-Side Phase Current Sensing with Integrated Over-Current Detection PDF

INA302

INA303

Bi-Directional Current Measurement in H-Bridge PDF INA240

End Equipment Specific Challenges

TI TechNotes
Download TI TechNotes
Devices
Current Measurements for Switching Power Supply PDF INA240
Current Sensing In Current Mode Control Power Supply PDF INA240
Precision Brightness and Color Mixing in LED Lighting Using Discrete Current Sense Amplifiers PDF INA240
Protection for Discrete Digital Outputs in PLC Systems PDF INA240

Magnetic Positioning Challenges

TI TechNotes
Download TechNotes
Devices
Power Gating System using Magnetic Sensors
PDF DRV5032