应用与设计

LT8580 12V 电池稳定器可承受 40V 瞬态

详情介绍

概览

产品详情

8.5V-28V input, 72V/ l.5A output low emissions diesel fuel injector actuator supply

 
相比于汽油喷油器,未来的低排放柴油机喷油系统需要更精准和更快的喷油器执行。提升系统的电压是一种实现快速执行的简易方法 (通过增加执行器中的 di/dt),因为电容器的储能为 CV2/2。将汽车电池电压从 13V 提高至 72V 将显著增加 di/dt,从而实现更快的执行速度。喷油器的执行通常使供电电容器放电10V~20V,在此之后升压转换器将输出电容器再充电至 72V。上图示出了这款8.5V~28V 输入、72V/l.5A 输出两相升压型转换器。


工具及仿真模型

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

LTspice