2012年11月15日星期四

To control the opening of the power level


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drop-in anchor To control the opening of the power level. When the signal level of the port is greater than 1.8V, the main power is off; if the signal level is less than 1.8V, the main power is on. Using a multimeter to test the fo ot of the output signal level is 4V. Because the voltage of the output pin of the signal level. Here are a preliminary soil to determine the power of good and bad way: Use wire shorted green port and any one black port, if the power supply is no reaction, indicating damage to the power supply. A lot of power now joined the protection circuit, shorted the power to determine that there is no additional load will automatically turn off. Therefore, we need to carefully observe the moment of the start of the power supply.power supply load regulation

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