电源设计应用
采用PIC单片机芯片的三相半控整流电路设计
三相半控整流桥电路结构是一种常见的整流电路,其容易控制,成本较低。本文中介绍了一种基于 PIC690单片机与专用集成触发芯片TC787的三相半控整流电路,它结合专用集成...
2009-04-24 1775
DVS与AVS的原理及设计应用
在电池供电的嵌入式系统中,或采用高效率的电源管理芯片,或采用大容量的电池以解决能耗问题。但这两种办法已无法满足快速增长的芯片动态功耗和静...
2009-04-24 3189
A Comparison between Battery B
Abstract: Dallas Semiconductor nonvolatile (NV) SRAMs are backed up with an internal battery. Some other NV memories on the market, such as NOVRAMs, back up the data with internal EEPROM. This application note discusses the difference...
2009-04-24 916
Battery Monitoring in NV SRAM
Abstract: As a prerequisite to this article, it is recommended that Application Note 505 be reviewed to gain a better understanding of the general behavior of lithium coin-cell batteries.Dallas Semiconductor offers a variety of pro...
2009-04-24 1747
笔记本电池工作原理
笔记本电池工作原理 ??一般笔记本电电池电芯使用的是10.8V或11.1V,而单个电池无法满足要求因此笔记本电脑电池都是采用多个单体电池串联和并联组成的电池组。至于大家...
2009-04-23 4342
电阻电桥基础
摘要:电桥是用来精密测量电阻或其他模拟量的一种非常有效的方法。本文继第一部分之后,介绍了如何实现具有较大信号输出的硅应变计与模数转换器(ADC)的接口。特别是Σ-Δ ADC,...
2009-04-23 2006
DC/DC辐照损伤与VDMOS器件噪声相关性研究
大量的研究表明,低频噪声除了与产品性能有关之外,还与产品质量和可靠性密切相关。国内外出现了一系列使用低频噪声特别是1/f噪声表征器件可靠性的方法,这些器件不...
2009-04-23 779
上网本电源管理系统的设计挑战
上网本的电源管理系统可分为以下几部分:1. 电池充电和管理;2. CPU 处理器供电;3.系统5V/3.3V供电;4. I/O和显卡供电;5. 显示背光供电;6. DDR存储器供电。 &nb...
2009-04-23 659
Battery-Switchover Circuit Acc
Abstract: Portable systems often require operation from batteries or from a wall adapter. The MAX8865 low-dropout (LDO) linear regulator is used to provide the switchover function while supplying a regulator 2.84V that can deliver 100mA. ...
2009-04-23 1180
大型电容器替代备用电池-Large Capacitor Re
Abstract: Use a supercap to reduce cost of simple battery backup circuits. In low-power systems that require a battery backup switchover circuit during brownout conditions, a supercap may provide adequate power to maintain memory operation...
2009-04-23 988
PC Chipset Power Fail and Rese
Abstract: The following application note discusses the advantages of using the DS1632 PC Power Fail and Reset Controller to consolidate various power management functions into one device vs. using discreet components. The DS1632 performs c...
2009-04-23 1896
在断电时如何保存数据-How to Save Data Du
Abstract: The following application note discusses how the DS1233 can be used to save data during a power failure without corrupting the NV SRAM. For many memory systems requiring nonvolatile memory, Dallas Semiconductor ...
2009-04-23 2232
微电路具有自动关机和低电池锁定功能-Micropower C
Abstract: The following application note provides a circuit that automatically performs shutdown, power-up, and low-battery lockout functions without the need for software control. This micropower circuit provides shutdow...
2009-04-23 1040
最大限度地延长电池寿命,减少更换-Maximize Batt
Abstract: The MAX6326 microprocessor supervisor is used in an application to provide a battery switchover circuit when the wall adapter is disconnected. The reset output drives an external MOSFET that is used as a switch. This switchover c...
2009-04-23 585
低成本供应交流-Low-Cost AC Supply
Abstract: The following application note discusses a low-cost solution to implement a 3V, 3.3V or 5V logic supply from AC power. It uses the MAX6330 shunt regulator which can supply up to 50mA as well as offering a reset output (power-on r...
2009-04-23 812
Battery Monitoring in NV SRAM
Abstract: As a prerequisite to this article, it is recommended that Application Note 505 be reviewed to gain a better understanding of the general behavior of lithium coin-cell batteries.Dallas Semiconductor offers a variety of pro...
2009-04-23 1891
上电复位与相关监控功能
摘要:本文讨论用于单电源或双电源处理器的上电复位功能和门限电压的选择策略,另外,还探讨了手动复位、电源失效和低电压检测等功能。文中阐述了避免使用分立POR和处理器...
2009-04-23 845
高可靠系统的电源电压监控和排序
摘要:该应用笔记说明高可靠系统中合理监控电源电压和电源排序的必要性,给出了监控器的选择标准,并说明上电复位(POR)电路、多电压监控和余量功能的必要性。另外,还讨论了...
2009-04-23 1334
过压保护的备用电路: 技巧和窍门
摘要:过压保护(OVP)器件用于保护后续电路免受甩负载或瞬间高压的破坏,在某些特定的应用中,基本的过压保护电路不足以胜任器件保护的要求,通常有以下两种需求。第一,电路...
2009-04-23 810
监集成电路监控电池供电设备-Supervisor ICs M
Abstract: To ensure correct operation, most microprocessor-based systems require supervision during power-up and power-down, and when entering or exiting shutdown or sleep mode. The supervisor may only provide a power-on reset, or it may o...
2009-04-23 696
复位电路确保有效的电源电压-Reset Circuit En
Abstract: This article focuses on using an external MOSFET switch to ensure a valid system voltage is present before applying it to the load. This simple circuit uses a reset circuit and the MOSFET to provide a protection circuit during po...
2009-04-23 2156
上电复位与相关监控功能
摘要:本文讨论用于单电源或双电源处理器的上电复位功能和门限电压的选择策略,另外,还探讨了手动复位、电源失效和低电压检测等功能。文中阐述了避免使用分立POR和处理器...
2009-04-23 1040
过压保护的备用电路: 技巧和窍门
摘要:过压保护(OVP)器件用于保护后续电路免受甩负载或瞬间高压的破坏,在某些特定的应用中,基本的过压保护电路不足以胜任器件保护的要求,通常有以下两种需求。第一,电路...
2009-04-23 996
单电源运算放大器的偏置与去耦电路设计
目前在许多手持设备、汽车以及计算机等设备只用单电源供电,但是单电源容易出现不稳定问题,因此需要在电路外围增加辅助器件以提高稳定性。在电路图1中展示了单电源供电运...
2009-04-22 4462
SLIC充电泵
最初,普通老式电话业务 (POTS) 设计用于在客户端和局端 (CO) 之间传输纯语音数据。然而,例如非对称数字用户线路 (ADSL) 的宽带调制解调器已经不用将 POTS 与 CO 连...
2009-04-22 1721
DS1077L EconOscillator建筑与在线互动式
Abstract: Theory of operation and description of the DS1077 dual-output all-silicon EconOscillator. A link to an interactive frequency calculator permits calculation of available frequencies online. ECONOSCILLATOR ARCHITE...
2009-04-22 1136
专门针对数字光投影仪而优化的电源设计
投影系统中的电源设计优化体现在高强度放电 (HID) 或 LED 要求、功率因数校正以及能效方面。 TI 开发的数字光投影仪 (DLP) 显示技术采用光半...
2009-04-22 863
应用处理器专用电源--TPS65024x
摘要:本文详细说明了 TI 推出的TPS65024x电源产品系列之间的不同之处,此系列电源产品是专门为 PDA、智能电话以及导航系统的应用处理器而设计的。 在为智能电话开发一款...
2009-04-22 1150
动态电源路径管理简化了太阳能板对电池的充电
动态电源路径管理简化了太阳能板对电池的充电 最初,TI 的线性充电稳压器bqTINY-III 系列只是设计用于通过一个 AC 适配器或 USB 端口为单体锂离...
2009-04-22 990
UC3855A/UC3855B高性能功率因数预调节器
UC3855A/B高性能功率因数预调节器 电源转换器正朝着越来越高的功率密度的方向发展。通常,获得这种高功率密度的方法是提高开关频率,可以缩小滤波...
2009-04-22 2527
编辑推荐厂商产品技术软件/工具OS/语言教程专题
| 电机控制 | DSP | 氮化镓 | 功率放大器 | ChatGPT | 自动驾驶 | TI | 瑞萨电子 |
| BLDC | PLC | 碳化硅 | 二极管 | OpenAI | 元宇宙 | 安森美 | ADI |
| 无刷电机 | FOC | IGBT | 逆变器 | 文心一言 | 5G | 英飞凌 | 罗姆 |
| 直流电机 | PID | MOSFET | 传感器 | 人工智能 | 物联网 | NXP | 赛灵思 |
| 步进电机 | SPWM | 充电桩 | IPM | 机器视觉 | 无人机 | 三菱电机 | ST |
| 伺服电机 | SVPWM | 光伏发电 | UPS | AR | 智能电网 | 国民技术 | Microchip |
| 开关电源 | 步进电机 | 无线充电 | LabVIEW | EMC | PLC | OLED | 单片机 |
| 5G | m2m | DSP | MCU | ASIC | CPU | ROM | DRAM |
| NB-IoT | LoRa | Zigbee | NFC | 蓝牙 | RFID | Wi-Fi | SIGFOX |
| Type-C | USB | 以太网 | 仿真器 | RISC | RAM | 寄存器 | GPU |
| 语音识别 | 万用表 | CPLD | 耦合 | 电路仿真 | 电容滤波 | 保护电路 | 看门狗 |
| CAN | CSI | DSI | DVI | Ethernet | HDMI | I2C | RS-485 |
| SDI | nas | DMA | HomeKit | 阈值电压 | UART | 机器学习 | TensorFlow |
| Arduino | BeagleBone | 树莓派 | STM32 | MSP430 | EFM32 | ARM mbed | EDA |
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| OrCAD | Cadence | AutoCAD | 华秋DFM | Keil | MATLAB | MPLAB | Quartus |
| C++ | Java | Python | JavaScript | node.js | RISC-V | verilog | Tensorflow |
| Android | iOS | linux | RTOS | FreeRTOS | LiteOS | RT-THread | uCOS |
| DuerOS | Brillo | Windows11 | HarmonyOS |









































