摘要：该电路保护汽车意外地接触到汽车的电池电压（ 16V最大）视频放大器，电压检测故障，并迅速打开功放和电池之间的连接。 Maxim > App Notes > Circuit Protection Video Circuits Keywords: automotive circuit protection, video DACs, digital inverters, MOSFETs Nov 16, 2010 APPLICATION NOTE 4516 Simple Circuit Protects Automotive Video Drivers from Overvoltage Abstract:This circuit protects automotive video amplifiers from accidental exposure to the car's battery voltage (16V maximum), by sensing voltage faults and quickly opening the connection between amplifier and battery. A similar version of this article appeared in the May 20, 2008 issue of Electronic Design magazine. In a typical automotive video application, the video DAC (from a rear camera or DVD player, for example) is followed by a lowpass reconstruction filter and an amplifier th……