Description
3ASC25H203 参数
产品描述
MB86S02视频图画传感器在FPGA的操控下进行视频图画信息的收集,在收到PC机的收集命令后MB86S02开端视频信号的收集 FPGA作为体系的中心操控单元不仅负责视频图画的收集,并且负责视频图画信息的预处理和体系各单元模块之间的数据交互。针对视频图画数据量大的特色,为了保证体系的实时性要求,体系选用大容量的片外SDRAMR对收集到的视频图画信息进行缓存,SDRAM操控器由FPGA实现,视频图画信息通过 SDRAM缓存后首先要由FPGA对其进行滤波处理,以消除图画信息中的噪声干扰,本体系中选用中值滤波的方式对收集到的视频信息进行处理,滤波后的数据通过FPGA内部FIFO进入DSP进行下一步的紧缩处理。DSP上电后首先进行引导程序的自加载,等待FPGA发送恳求,在收到FPGA的恳求后,DSP建立EDMA通道从FPGA获取视频数据,存满一帧后,开端对视频图画进行JPEG紧缩处理,紧缩处理后的视频图画信息通过FIFO缓存后,在 FPGA的操控下写入USB接口操控器的数据缓存区,等待PC机的读数恳求,USB接口操控器在收到PC机的读数恳求后将数据写入PDIUSBD12的端口1,以便PC机下一步读取数据。
额定输出电压:24 V DC,调节范围: 24 … 28 V DC
额定输出电流:3 A, 5 A, 10 A, 20 A 和 40 A
效率从 89% 到 94%
输出功率裕度 150 % IN ,可持续 5 s
宽范围 AC 和 DC 输入,且经过第三方认证
模块宽度非常小
联系人:何工
联系电话:18065687102
外贸网址:www.saulabb.com
邮箱:abbhke@gmail.com
The conduction conditions of thyristor: firstly, a forward voltage must be applied between the anode and cathode of the thyristor, and secondly, a forward voltage must also be applied to the control electrode. The above two conditions must be met simultaneously in order for the thyristor to be in a conductive state. In addition, once the thyristor is turned on, even if the control pole voltage is reduced or removed, the thyristor still conducts. Thyristor shutdown condition: Reduce or remove the forward voltage applied between the anode and cathode of the thyristor, so that the anode current is less than the minimum maintenance current.
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