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发明公开
CN101212558A 一种视频开关的输入电压转换电路 无效 - 驳回

一种视频开关的输入电压转换电路
摘要：
本发明涉及视频开关的输入电路，提供了一种视频开关的输入电压转换电路。所述视频开关的输入电压转换电路，包括一个前置的电容，所述电容与一个钳位二极管相连，其特征在于，所述钳位二极管与一对直流电压偏置电阻相连，所述直流电压偏置电阻将视频信号的输入电压强制转换为一个固定电压并输入视频开关。本发明中视频开关的输入电压转换电路，将不同的视频信号输入电压强制转换为固定电压，有效避免了图像间的窜扰。
摘要（英）：

The invention relates to an inputting circuit of a video switch, which provides an inputting voltage conversion circuit of the video switch. The inputting voltage conversion circuit of the video switch consists of a prepositive capacitance which is connected with a clamping diode; the circuit is characterized in that the clamping diode is connected with a diverging resistance of direct current voltage; the diverging resistance of the direct current voltage compulsively converts the inputted voltage of a video signal into a stationary voltage and outputs to the video switch. The inputting voltage conversion circuit of the switch of the invention compulsively converts the inputting voltage of different video signals into the stationary voltage, which effectively avoids garbling amid the images.

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