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METHODS AND APPARATUS FOR NEGATIVE OUTPUT VOLTAGE ACTIVE CLAMPING USING A FLOATING BANDGAP REFERENCE AND TEMPERATURE COMPENSATION
METHODS AND APPARATUS FOR NEGATIVE OUTPUT VOLTAGE ACTIVE CLAMPING USING A FLOATING BANDGAP REFERENCE AND TEMPERATURE COMPENSATION
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机译:利用浮动带隙基准和温度补偿进行负输出电压有源钳位的方法和装置
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摘要
Methods, apparatus, systems and articles of manufacture for negative output voltage active clamping using a floating bandgap reference and temperature compensation are disclosed. An example load switch includes a floating bandgap reference circuit to generate a bandgap reference voltage. A resistor divider is to generate a resistor divider voltage. A temperature compensator to apply a temperature compensation current to the resistor divider to create a temperature compensated resistor divider voltage. A power transistor is to be enabled when the temperature compensated resistor divider voltage is less than the bandgap reference voltage. The example load switch can work under negative output voltage clamping and get better accuracy drain to source clamped voltage of power transistor for inductive load condition.
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