Max454 Video Switcher

Installing the camera in office, home, or the shop becomes economically feasible because the price of security camera going down. It is not efficient if we provide a dedicated monitor for every installed camera. If the CRT monitor is used to display static image from only one camera, it might suffer phosphor  burn. So we need video switcher circuit to […]

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Temperature Under–and Over-Range Sensing with A Window Comparator

The window can be used to monitor a TEC operating temperature and indicate an out-of-range condition. To indicate an over temperature or under-temperature, this circuit uses the separated outputs. If the output’s logic is HIGH, the condition is over-temperature, if it is LOW, the condition is the TEC temperature is within its safe operating range. Here is the circuit : […]

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