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Avoiding excessive cross-terminal voltages of low voltage transistors due to undesirable supply-sequencing in environments with higher supply voltages
Avoiding excessive cross-terminal voltages of low voltage transistors due to undesirable supply-sequencing in environments with higher supply voltages
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机译:避免在电源电压较高的环境中由于不良的电源排序而导致低压晶体管的交叉端子电压过高
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摘要
Ensuring sufficient bias current is provided to a portion of a circuit containing low voltage transistors operating with a high supply voltage. Such a sufficient bias current may be ensured by generating a primary bias current from a low supply voltage and a backup bias current from a high supply voltage, and providing the backup bias current as the bias current if the primary bias current is not present. The primary bias current may be provided as the bias current when the low supply voltage is available. Thus, the backup bias current is provided as bias current in case of undesirable supply sequencing.
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